Geometry Structure and Algorithm.#

Geometry Structure#

const float visionflow::geometry::kPi = 3.14159265358979F#: Constant PI.

class IGeometry#

Common abstract base class for all plane geometry types.

Public Types

enum GeometryType#

Geometry enum value.

Values:

enumerator kRadian = 0#

enumerator kSize2f = 2#

enumerator kSize2i = 3#

enumerator kPoint2f = 4#

enumerator kPoint2i = 5#

enumerator kVector2f = 6#

enumerator kVector2i = 7#

enumerator kSegment2f = 8#

enumerator kSegment2i = 9#

enumerator kLine2f = 10#

enumerator kRay2f = 12#

enumerator kRay2i = 13#

enumerator kRing2f = 14#

enumerator kRing2i = 15#

enumerator kRect2f = 16#

enumerator kRect2i = 17#

enumerator kPolygon2f = 18#

enumerator kPolygon2i = 19#

enumerator kRotateRect2f = 20#

enumerator kRotateRect2i = 21#

enumerator kArc2f = 22#

enumerator kCircle2f = 24#

enumerator kCircle2i = 25#

enumerator kLineString2f = 26#

enumerator kLineString2i = 27#

enumerator kMultiPoint2f = 28#

enumerator kMultiPoint2i = 29#

enumerator kMultiPolygon2f = 30#

enumerator kMultiPolygon2i = 31#

enumerator kEllipse2f = 32#

enumerator kMultiSegment2f = 34#

Public Functions

virtual IGeometry::GeometryType type() const = 0#

Enumerate value of geometry types.

Returns:: GeometryType

const char *type_name() const#

Name of geometry types.

Returns:: const char*

inline virtual bool is_surface() const#

Get if the geometry object is a surface.

Returns:: True if the geometry object is a surface. else false.

class ISurface : public visionflow::geometry::IGeometry #

The abstract base class for all surface geometry types.

Subclassed by visionflow::geometry::Circle2f, visionflow::geometry::Ellipse2f, visionflow::geometry::MultiPolygon2f, visionflow::geometry::Polygon2f, visionflow::geometry::Rect2f, visionflow::geometry::Ring2f, visionflow::geometry::RotateRect2f

Public Functions

inline virtual bool is_surface() const final#

Get if the geometry object is a surface.

Returns:: NO_DISCARD

virtual float area() const = 0#: Get the surface area.

virtual float perimeter() const = 0#: Surface perimeter.

virtual Point2f centroid() const = 0#: Get the centroid of the surface, the centroid may be different from the center in some surface.

virtual Rect2f bounding_box() const = 0#: Get the axises aligned bounding box.

virtual RotateRect2f min_area_box() const = 0#: Get the min area bounding box.

struct Radian : public visionflow::geometry::IGeometry #

Can easily get the degree of the radian conversion.

The direction from the positive direction of the x-axis to the positive direction of the y-axis is positive direction of the angle definition.

Public Functions

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

Radian(float radian = 0)#

Construct a new Radian object.

Parameters:: radian – Radian.

bool operator==(const Radian &rhs) const#

Check if two Radian are equal.

Parameters:: rhs – Other Radian.
Returns:: true if two Radian are equal.

inline bool operator!=(const Radian &other) const#

Check if two Radian are not equal to each other.

Parameters:: other –
Returns:: true if not equal

Radian operator-() const#

Get negative Radian.

Returns:: Radian negative Radian.

Radian norm(float mod = visionflow::geometry::kPi * 2) const#

Normalize the radian into [0, mod)

Parameters:: mod – Divisor.
Returns:: NO_DISCARD Radian in [0, mod)

float degree() const#

Get the degree of the radian conversion.

Returns:: NO_DISCARD float degree.

Radian &from_degree(float degree)#

Set the radian of the degree conversion.

Parameters:: degree – Degree.
Returns:: Radian& reference to this object.

Vector2f unit_vector() const#

Get Radian correspond to unit vector.

The direction of the unit vector is the same as the direction of the Radian, i.e. from the positive direction of the x-axis to the positive direction of the y-axis is positive direction of the angle definition.

Returns:: NO_DISCARD Vector2f unit vector in the same direction as the Radian.

Public Members

float radian#: Radian data.

Public Static Functions

static Radian FromDegree(float degree)#

Construct radian from degree.

Parameters:: degree –
Returns:: Radian

struct Vector2f : public visionflow::geometry::IGeometry #

A floating-point vector with size and direction from the origin point (0, 0).

Public Types

using Elem = float#: Element type

using Point = Point2f #: Vector corresponding to a floating-point number type.

Public Functions

Vector2f() = default#: Default constructor,no initialization.

Vector2f(const Elem &x, const Elem &y)#: Constructor to set two values.

explicit Vector2f(const Point &rhs)#: Constructor to set a Point.

explicit Vector2f(const Vector2i &rhs)#: Construct a new vector with number type conversion.

Vector2f operator-() const#: Inversion of vectors.

Vector2f operator+(const Vector2f &rhs) const#: Addition of vectors.

Vector2f operator-(const Vector2f &rhs) const#: Subtraction of vectors.

Vector2f operator*(Elem rhs) const#: Amplification of vectors.

Vector2f operator/(Elem rhs) const#: Reduction of vectors.

Elem operator*(const Vector2f &rhs) const#: vector product

Vector2f &operator+=(const Vector2f &rhs)#: Addition of vectors.

Vector2f &operator-=(const Vector2f &rhs)#: Subtraction of vectors.

Vector2f &operator*=(Elem rhs)#: Amplification of vectors.

Vector2f &operator/=(Elem rhs)#: Reduction of vectors.

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

Radian azimuth() const#

Azimuth of vectors.

Returns:: The radian of the rotation of the vector from the positive direction of the x-axis to the positive direction of the y-axis(±π).

float length() const#

Modulus of a vector.

Returns:: float Modulus length.

struct Vector2i : public visionflow::geometry::IGeometry #

Integer vector with size and direction from the origin (0,0).

Public Types

using Elem = int32_t#: Element type.

using Point = Point2i #: Vector corresponding to an integer point of the same number type.

Public Functions

Vector2i() = default#: Default constructor.

Vector2i(const Elem &x, const Elem &y)#: Constructor to set two values.

explicit Vector2i(const Point2i &rhs)#: Constructor to set a Point.

Vector2i operator-() const#: Inversion of vectors.

Vector2i operator+(const Vector2i &rhs) const#: Addition of vectors.

Vector2i operator-(const Vector2i &rhs) const#: Subtraction of vectors.

Vector2i operator*(Elem rhs) const#: Amplification of vectors.

Vector2i operator/(Elem rhs) const#: Reduction of vectors.

Elem operator*(const Vector2i &rhs) const#: vector product

Vector2i &operator+=(const Vector2i &rhs)#: Addition of vectors.

Vector2i &operator-=(const Vector2i &rhs)#: Subtraction of vectors.

Vector2i &operator*=(Elem rhs)#: Amplification of vectors.

Vector2i &operator/=(Elem rhs)#: Reduction of vectors.

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

Radian azimuth() const#: Azimuth of vectors.

float length() const#

Modulus of a vector.

Returns:: float Modulus length

struct Point2f : public visionflow::geometry::IGeometry #

Floating point coordinate points.

Public Types

using Elem = float#: Element type.

using Vector = Vector2f #: The vector of the same type corresponding to the point.

using Line = Line2f #: A line of the same type corresponding to a point.

Public Functions

Point2f() = default#: Default constructor,no initialization.

explicit Point2f(const Point2i &rhs)#: Construct a new Point with number type conversion.

Point2f(const Elem &x, const Elem &y)#: Constructor to set two values.

explicit Point2f(const Vector &rhs)#: Constructor to set a Vector.

bool operator==(const Vector &rhs) const#: Numerical comparison with vectors of the same type.

Point2f operator+(const Vector &rhs) const#: Translation of points.

Point2f operator-(const Vector &rhs) const#: Translation of points.

Point2f operator*(Elem rhs) const#: Enlarge point coordinates.

Point2f operator/(Elem rhs) const#: Point coordinates reduced.

Point2f &operator+=(const Vector &rhs)#: Translation of points.

Point2f &operator-=(const Vector &rhs)#: Translation of points.

Point2f &operator*=(Elem rhs)#: Enlarge point coordinates.

Point2f &operator/=(Elem rhs)#: Point coordinates reduced.

Elem operator*(const Point2f &rhs) const#: 点积

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

struct Point2i : public visionflow::geometry::IGeometry #

整型点

Public Types

using Elem = int32_t#: Element type

using Vector = Vector2i #: The vector of the same type corresponding to the point.

Public Functions

Point2i() = default#: Default constructor,no initialization.

Point2i(const Elem &x, const Elem &y)#: Constructor to set two values.

explicit Point2i(const Vector &rhs)#: Constructor to set a Vector.

bool operator==(const Vector &rhs) const#

Numerical comparison with vectors of the same type.

Parameters:: rhs – Vector to compare
Returns:: true if equal
Returns:: false

Point2i operator+(const Vector &rhs) const#: Translation of points.

Point2i operator-(const Vector &rhs) const#: Translation of points.

Point2i operator*(Elem rhs) const#: Enlarge point coordinates.

Point2i operator/(Elem rhs) const#: Point coordinates reduced.

Point2i &operator+=(const Vector &rhs)#: Translation of points.

Point2i &operator-=(const Vector &rhs)#: Translation of points.

Point2i &operator*=(Elem rhs)#: Enlarge point coordinates.

Point2i &operator/=(Elem rhs)#: Point coordinates reduced.

Elem operator*(const Point2i &rhs) const#: dot product

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

struct Segment2f : public std::pair<Point2f, Point2f>, public visionflow::geometry::IGeometry #

Floating point line segments.

Public Types

using Point = Point2f #: Line segments corresponding to points of the same type.

using Vector = Vector2f #: Direction vectors of the same type corresponding to the line segment.

using Line = Line2f #: Line segment corresponding to a line of the same data type.

using Elem = Point2f::Elem #: Element type.

Public Functions

Segment2f() = default#: Default constructor, no initialization.

explicit Segment2f(const Segment2i &rhs)#: Construct a new Segment with number type conversion.

Segment2f(const Point &lhs, const Point &rhs)#: Constructor to set two Points.

Segment2f(const Point &lhs, const Vector &direction, const float &dis)#: Constructor to set Point,direction Vector and distance.

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

float length() const#: Length of line segment.

Line in_line() const#: The line where the line segment is located.

Radian azimuth() const#: Azimuth of a line segment.

bool is_point() const#

Check if the Segment is equal to a Point.

Returns:: NO_DISCARD true if the ends of Segment are the same.

struct Segment2i : public std::pair<Point2i, Point2i>, public visionflow::geometry::IGeometry #

Integral line segments.

Public Types

using Point = Point2i #: Line segments corresponding to points of the same type.

using Vector = Vector2i #: Direction vectors of the same type corresponding to the line segment.

using Elem = Point2i::Elem #: Element type.

Public Functions

Segment2i() = default#: Default constructor, no initialization.

Segment2i(const Point &lhs, const Point &rhs)#: Constructor to set two Points.

Segment2i(const Point &lhs, const Vector &direction, const float &dis)#: Constructor to set Point,direction Vector and distance.

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

float length() const#: Length of line segment.

Line2f in_line() const#: The line where the line segment is located.

Radian azimuth() const#: Azimuth of a line segment.

bool is_point() const#

Check if the Segment is equal to a Point.

Returns:: NO_DISCARD true if the ends of Segment are the same.

struct Line2f : public visionflow::geometry::IGeometry #

浮点型直线

Public Types

using Point = Point2f #: 直线对应的同类型点.

using Segment = Segment2f #: 直线对应的同类型线段.

using Vector = Vector2f #: 直线对应的同类型方向向量.

using Elem = float#: Element type.

Public Functions

Line2f(Elem a, Elem b, Elem c)#: Constructor to set ax+by+c=0.

Line2f(const Point &lhs, const Point &rhs)#: Constructor to set two Points.

Line2f(const Point &lhs, const Vector &rhs)#: Constructor to set Point and direction Vector.

explicit Line2f(const Segment &rhs)#: Constructor to set a Segment.

explicit Line2f(const Segment2i &rhs)#: Constructor to set a Segment.

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

Point passing_point() const#

直线的经过点.

优先返回y轴交点,其次返回x轴交点.

Returns:: NO_DISCARD Point

Radian azimuth() const#: 直线的方位角.

Point intersection_by_y(Elem value) const#

Intersection of a line parallel to the x-axis.

If there is no intersection it will throw an exception.
If there is a complete overlap it will return Point(0, value)

Parameters:: value – The line y = value.
Throws:: visionflow::excepts::InvalidArgument – If Lines have no intersection.
Returns:: NO_DISCARD Point the intersection.

Point intersection_by_x(Elem value) const#

Intersection of a line parallel to the y-axis.

If there is no intersection it will return an exception.
If there is a complete overlap it will return Point(value, 0)

Parameters:: value – The line x = value.
Throws:: visionflow::excepts::InvalidArgument – If Lines have no intersection.
Returns:: NO_DISCARD Point the intersection.

struct Ray2f : public visionflow::geometry::IGeometry #

浮点型射线

Public Types

using Point = Point2f #: 射线对应的同类型射线.

using Vector = Vector2f #: 射线对应的同类型方向向量.

using Line = Line2f #: 射线对应的同类直线.

Public Functions

Ray2f(Point lhs, const Vector &rhs)#: Constructor to set Point and direction Vector.

Ray2f(const Point &lhs, const Point &rhs)#: Constructor to set two Points.

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

Radian azimuth() const#: 射线的方位角.

Line in_line() const#: 射线所在直线.

Public Members

Point start#: 射线起始点.

Vector direction#: 射线对应的方向向量.

struct Ray2i : public visionflow::geometry::IGeometry #

整型射线

Public Types

using Point = Point2i #: 射线对应的同类型射线.

using Vector = Vector2i #: 射线对应的同类型方向向量.

Public Functions

Ray2i(Point lhs, const Vector &rhs)#: Constructor to set Point and direction Vector.

Ray2i(const Point &lhs, const Point &rhs)#: Constructor to set two Points.

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

Radian azimuth() const#: 射线的方位角.

Line2f in_line() const#: 射线所在直线.

Public Members

Point start#: 射线起始点.

Vector direction#: 射线对应的方向向量.

struct LineString2f : public std::vector<Point2f>, public visionflow::geometry::IGeometry #

浮点型线

一条线被认为是一些点的集合(std::vector),且按一定顺序连接相邻两点形成折线段.

Note

线可以是自交的,但这对于某些算法会产生错误的影响.可以通过 is_simple() 检测是否自交等问题.

Public Types

using Point = Point2f #: 线对应的同类型点

using Rect = Rect2f #: 线对应的同类型矩形 envelope()

Public Functions

LineString2f() = default#: Default constructor,creating an empty LineString.

explicit LineString2f(const LineString2i &rhs)#: Construct a new LineString with number type conversion.

LineString2f(const Point &lhs, const Point &rhs)#: Constructor to set two Points.

LineString2f(const std::initializer_list<Point> &rhs)#: Constructor taking std::initializer_list,filling the LineString.

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

float length() const#: 折线段长度和

struct LineString2i : public std::vector<Point2i>, public visionflow::geometry::IGeometry #

整型线

一条线被认为是一些点的集合(std::vector),且按一定顺序形成折线段.

Note

线可以是自交的,但这对于某些算法会产生错误的影响.可以通过 is_simple() 检测是否自交等问题.

Public Types

using Point = Point2i #: 线对应的同类型点

using Rect = Rect2i #: 线对应的同类型矩形 envelope()

Public Functions

LineString2i() = default#: Default constructor,creating an empty LineString.

LineString2i(const Point &lhs, const Point &rhs)#: Constructor to set two Points.

LineString2i(const std::initializer_list<Point> &rhs)#: Constructor taking std::initializer_list,filling the LineString.

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

float length() const#: 折线段长度和

struct Ring2f : public std::vector<Point2f>, public visionflow::geometry::ISurface #

浮点型环

环是一条不应自交的闭合线,即不带孔的多边形. 应遵循从x轴正方向向y轴正方向描述环上的点,开包(第一点与最后一点不同).

Public Types

using Point = Point2f #: 环对应的同类型点

using LineString = LineString2f #: 环对应的同类型线 convert()

using Rect = Rect2f #: 环对应的同类型矩形 envelope()

using Ring = Ring2f #: 用于统一与polygon的部分算法接口 convex_hull()

Public Functions

Ring2f() = default#: Default constructor,creating an empty Ring.

explicit Ring2f(const Ring2i &rhs)#: Construct a new Ring with number type conversion.

Ring2f(const std::initializer_list<Point> &rhs)#: Constructor taking std::initializer_list,filling the Ring.

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

virtual float area() const override#: Get the surface area.

virtual float perimeter() const override#: Surface perimeter.

virtual Point2f centroid() const override#: Get the centroid of the surface, the centroid may be different from the center in some surface.

virtual Rect2f bounding_box() const override#: Get the axises aligned bounding box.

virtual RotateRect2f min_area_box() const override#: Get the min area bounding box.

struct Ring2i : public std::vector<Point2i>, public visionflow::geometry::IGeometry #

整型环

环是一条不应自交的闭合线,即不带孔的多边形. 应遵循从x轴正方向向y轴正方向描述环上的点,开包(第一点与最后一点不同).

Public Types

using Point = Point2i #: 环对应的同类型点

using LineString = LineString2i #: 环对应的同类型线 convert()

using Rect = Rect2i #: 环对应的同类型矩形 envelope()

using Ring = Ring2i #: 用于统一与polygon的部分算法接口 convex_hull()

Public Functions

Ring2i() = default#: Default constructor,creating an empty Ring.

Ring2i(const std::initializer_list<Point> &rhs)#: Constructor taking std::initializer_list,filling the Ring.

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

float area() const#: 环面积

float perimeter() const#: 环周长

struct Size2f : public visionflow::geometry::IGeometry #

Specify rect or image size.

Public Types

using Elem = float#: Element type.

Public Functions

Size2f(Elem w, Elem h)#

Construct a new Size 2f object.

Parameters:

w – Width (cols).
h – Height (rows).

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

Public Members

Elem h = 0.0#: Width (cols) and height (rows).

struct Size2i : public visionflow::geometry::IGeometry #

Specify rect or image size.

Public Types

using Elem = uint32_t#: Element type.

Public Functions

Size2i(Elem w, Elem h)#

Construct a new Size2i object.

Parameters:

w – Width (cols).
h – Height (rows).

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

Public Members

Elem h = 0#: Width and height.

struct Rect2f : public visionflow::geometry::ISurface #

浮点型矩形

有一个角为直角的平行四边形,与坐标轴平行.

Public Types

using Point = Point2f #: 矩形对应的同类型点

using Elem = float#: Element type.

using LineString = LineString2f #: 矩形边对应类型的线段

using Ring = Ring2f #: 矩形对应的同类型环 convert()

Public Functions

Rect2f() = default#: Default constructor,no initialization.

explicit Rect2f(const Rect2i &rhs)#: Construct a new Rect with number type conversion.

Rect2f(Point min_corner, Size size)#: Construct Rect with min corner point and size.

Rect2f(Point min_corner, const Elem &w, const Elem &h)#: 矩形的最小顶点和矩形宽高描述矩形.

Rect2f(const Point &lhs, const Point &rhs)#: 任意对角两点描述矩形.

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

Point xmin_ymin() const#: x最小,y最小顶点,同 min_corner.

Point xmax_ymin() const#: x最大,y最小顶点.

Point xmax_ymax() const#: x最大,y最大顶点.

Point xmin_ymax() const#: x最小,y最大顶点.

virtual float area() const override#: Get the surface area.

virtual float perimeter() const override#: Surface perimeter.

virtual Point2f centroid() const override#: Get the centroid of the surface, the centroid may be different from the center in some surface.

inline virtual Rect2f bounding_box() const override#: Get the axises aligned bounding box.

virtual RotateRect2f min_area_box() const override#: Get the min area bounding box.

float long_side() const#: Convert the long side length of the rectangle.

float short_side() const#: Convert the short side length of the rectangle.

Ring to_ring() const#: Convert rectangle to ring.

Public Members

Point min_corner#: 矩形的最小顶点.

Size size#: 矩形的宽高.

struct Rect2i : public visionflow::geometry::IGeometry #

整型矩形

有一个角为直角的平行四边形,与坐标轴平行.

Public Types

using Point = Point2i #: 矩形对应的同类型点

using Elem = int32_t#: Element type.

using LineString = LineString2i #: 矩形边对应类型的线段

using Ring = Ring2i #: 矩形对应的同类型环 convert()

Public Functions

Rect2i() = default#: Default constructor,no initialization.

Rect2i(Point min_corner, Size size)#: Construct Rect with min corner point and size.

Rect2i(Point min_corner, const Elem &w, const Elem &h)#: 矩形的最小顶点和矩形宽高描述矩形.

Rect2i(const Point &lhs, const Point &rhs)#: 任意对角两点描述矩形.

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

Point xmin_ymin() const#: x最小,y最小顶点,同 min_corner.

Point xmax_ymin() const#: x最大,y最小顶点.

Point xmax_ymax() const#: x最大,y最大顶点.

Point xmin_ymax() const#: x最小,y最大顶点.

Elem area() const#: 矩形面积

Elem perimeter() const#: 矩形周长

Elem long_side() const#: Convert the long side length of the rectangle.

Elem short_side() const#: Convert the short side length of the rectangle.

Ring to_ring() const#: Convert rectangle to ring.

Public Members

Point min_corner#: 矩形的最小顶点.

Size size#: 矩形的宽高.

struct Polygon2f : public visionflow::geometry::ISurface #

浮点型多边形

多边形由一个外环和零个或多个内环组成,内环方向与外环相反,形成带孔或不带孔的多边形. 应遵循从x轴正方向向y轴正方向描述外环上的点,开包(第一点与最后一点不同).

Public Types

using Ring = Ring2f #: 外环对应的同类型环

using RingList = std::vector<Ring>#: 内环对应的同类型环集合

using Rect = Rect2f #: 多边形对应的同类型矩形 envelope()

Public Functions

Polygon2f() = default#: Default constructor,creating an empty Polygon.

explicit Polygon2f(const Polygon2i &rhs)#: Construct a new Polygon with number type conversion.

Polygon2f(const std::initializer_list<Ring> &rhs)#: Constructor taking std::initializer_list,filling the Polygon.

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

virtual float area() const override#: Get the surface area.

Warning

If the inner ring is described incorrectly, such as being in the same direction as the outer, the area calculation will duplicate the area of the inner ring. You can use @ref correct() to correct the geometry and obtain the correct expected result. Even when the inner ring is tangent to each other or tangent to the outer ring, the correct polygon area can still be obtained.

virtual float perimeter() const override#: Surface perimeter.

Warning

If the inner rings are tangent to each other or tangent to the outer rings, the tangent side lengths are repeated when calculating the circumference.

virtual Point2f centroid() const override#: Get the centroid of the surface, the centroid may be different from the center in some surface.

virtual Rect2f bounding_box() const override#: Get the axises aligned bounding box.

virtual RotateRect2f min_area_box() const override#: Get the min area bounding box.

Public Members

Ring outer#: 外环,从x轴正方向向y轴正方向描述各点,开包.

RingList inners#: 零个或多个内环,方向与外环相反.

struct Polygon2i : public visionflow::geometry::IGeometry #

整型多边形

Public Types

using Ring = Ring2i #: 外环对应的同类型环

using RingList = std::vector<Ring>#: 内环对应的同类型环集合

using Rect = Rect2i #: 多边形对应的同类型矩形 envelope()

Public Functions

Polygon2i() = default#: Default constructor,creating an empty Polygon.

Polygon2i(const std::initializer_list<Ring> &rhs)#: Constructor taking std::initializer_list,filling the Polygon.

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

float area() const#: Get the surface area.

Warning

If the inner ring is described incorrectly, such as being in the same direction as the outer, the area calculation will duplicate the area of the inner ring. You can use @ref correct() to correct the geometry and obtain the correct expected result. Even when the inner ring is tangent to each other or tangent to the outer ring, the correct polygon area can still be obtained.

float perimeter() const#: Surface perimeter.

Warning

If the inner rings are tangent to each other or tangent to the outer rings, the tangent side lengths are repeated when calculating the circumference.

Public Members

Ring outer#: 外环,从x轴正方向向y轴正方向描述各点,开包.

RingList inners#: 零个或多个内环,方向与外环相反.

struct RotateRect2f : public visionflow::geometry::ISurface #

浮点型旋转矩形

有一个角为直角的平行四边形,不一定与坐标轴平行. 一个旋转矩形由其中心点center, 大小size 及指向角度radian所定义.

拥有相同的覆盖范围，但指向角度不同的多个旋转矩形本质上是不同。

Public Types

using Point = Point2f #: 旋转矩形对应的同类型点

using Size = Size2f #: 旋转矩形的大小，宽度w为沿角度方向的边长, 高度h为垂直于角度方向的边长

using LineString = LineString2f #: 旋转矩形边对应类型的线段

using Ring = Ring2f #: 旋转矩形对应的同类型环 convert()

using Rect = Rect2f #: 旋转矩形对应的同类型矩形 envelope()

Public Functions

RotateRect2f() = default#: Default constructor,no initialization.

RotateRect2f(Point center, Size size, Radian radian = {})#: 根据旋转矩形中心点，大小和方位角构造旋转矩形.

bool operator==(const RotateRect2f &rhs) const#: 任意对角两点描述平行矩形.

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

inline virtual float area() const override#: Get the surface area.

inline virtual float perimeter() const override#: Surface perimeter.

inline virtual Point2f centroid() const override#: Get the centroid of the surface, the centroid may be different from the center in some surface.

virtual Rect2f bounding_box() const override#: Get the axises aligned bounding box.

inline virtual RotateRect2f min_area_box() const override#: Get the min area bounding box.

float long_side() const#: Convert the long side length of the rectangle.

float short_side() const#: Convert the short side length of the rectangle.

Ring to_ring() const#: convert the rotate rectangle to ring. The order of the points is consistent with the order in which the rays from the center point are rotated in the positive direction and scanned in the positive direction.

RotateRect2f norm() const#

Normalize the radian into [0, kPi / 2).

Width and height will be exchanged due to angle change.

Returns:: RotateRect2f with radian in [0, kPi / 2).

RotateRect2f norm_compatible_opencv() const#

Normalize the radian into (0, kPi / 2] like opencv.

Width and height will be exchanged due to angle change.

Returns:: RotateRect2f with radian in (0, kPi / 2].

Public Members

Point center#: 中心点.

struct RotateRect2i : public visionflow::geometry::IGeometry #

整型旋转矩形

有一个角为直角的平行四边形,不一定与坐标轴平行. 一个旋转矩形由其中心点center, 大小size 及指向角度radian所定义.

拥有相同的覆盖范围，但指向角度不同的多个旋转矩形本质上是不同。

Public Types

using Point = Point2i #: 旋转矩形对应的同类型点

using Size = Size2i #: 旋转矩形的大小，宽度w为沿角度方向的边长, 高度h为垂直于角度方向的边长

using LineString = LineString2i #: 旋转矩形边对应类型的线段

using Ring = Ring2i #: 旋转矩形对应的同类型环 convert()

using Rect = Rect2i #: 旋转矩形对应的同类型矩形 envelope()

Public Functions

RotateRect2i() = default#: Default constructor,no initialization.

RotateRect2i(Point center, Size size, Radian radian = {})#: 根据旋转矩形中心点，大小和方位角构造旋转矩形.

bool operator==(const RotateRect2i &rhs) const#: 任意对角两点描述平行矩形.

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

inline uint32_t area() const#: Get the surface area.

inline uint32_t perimeter() const#: Surface perimeter.

uint32_t long_side() const#: Convert the long side length of the rectangle.

uint32_t short_side() const#: Convert the short side length of the rectangle.

Ring to_ring() const#: convert the rotate rectangle to ring. The order of the points is consistent with the order in which the rays from the center point are rotated in the positive direction and scanned in the positive direction.

Rect bounding_box() const#: Get the bounding box.

Public Members

Point center#: 中心点.

struct Ellipse2f : public visionflow::geometry::ISurface #

Float type ellipse.

An ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant.
An ellipse is defined by its centre point, the axis of the major and minor semi-axes, and the rotation angle radian around the centre point.
Multiple ellipses with the same coverage, but rotation angle at different angles, are essentially different.

Public Types

using Point = Point2f #: The ellipse corresponding to a point of the same type.

using Axis = Size2f #: Type of ellipse consisting of the major and minor semi-axes.

using Focus = Segment2f #: Type consisting of the left and right focal points on the x-axis under the equation of a standard ellipse.

using Rect = Rect2f #: The ellipse corresponding to a rectangle of the same type.

Public Functions

Ellipse2f() = default#: Default constructor,no initialization.

Ellipse2f(Point center, float major_semi_axis, float minor_semi_axis, Radian radian = {})#

Constructor to set centre point, major and minor semi-axes and rotation angle.

Require major_semi_axis >= minor_semi_axis, otherwise swap major_semi_axis and minor_semi_axis and add kPi * 0.5 to radian. An exception will be thrown if major_semi_axis or minor_semi_axis is not greater than 0

Parameters:

center – Centre point.
major_semi_axis – Major semi-axis.
minor_semi_axis – Minor semi-axis.
radian – Rotation angle around the centre point.

Throws:

visionflow::excepts::InvalidArgument – if major_semi_axis or minor_semi_axis is not greater than 0.

Ellipse2f(Point center, Axis _axis, Radian radian = {})#

Constructor to set centre point, major and minor semi-axes and rotation angle.

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Parameters:

center – Centre point.
_axis – axis.w means major semi-axis, axis.h means minor semi-axis.
radian – Rotation angle around the centre point.

Ellipse2f(const Point &focus1, const Point &focus2, const Point &point)#

根据两个焦点和椭圆上一点构建椭圆.

Parameters:

focus1 – 椭圆其中一个焦点.
focus2 – 椭圆另一个焦点.
point – 椭圆上一点.

Ellipse2f(float a, float b, float d = 1, Point center = {})#

根据椭圆标准方程构建椭圆.

\[ \frac{(x - center.x)^2}{a^2} + \frac{(y - center.y)^2}{b^2} = d (a \ge b \gt 0) \]

Parameters:

a – Major semi axis.
b – Minor semi axis.
d – Scale.
center – 中心点.

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

Focus focus() const#: 椭圆焦点.

float ecc() const#: 椭圆离心率.

inline virtual float area() const override#: The area of the ellipse.

virtual float perimeter() const override#: Get Ellipse perimeter(with Ramanujan approximation, See https://arxiv.org/pdf/math/0506384.pdf ).

inline virtual Point2f centroid() const override#: Get the centroid of the surface, the centroid may be different from the center in some surface.

virtual Rect2f bounding_box() const override#: Get the bounding box.

inline virtual RotateRect2f min_area_box() const override#: Get the min area bounding box.

Public Members

Point center#: 中心点.

Axis axis#: axis.w means major semi axis, axis.h means minor semi axis.

Radian radian#: 指向角度.

struct Arc2f : public visionflow::geometry::IGeometry #

浮点型弧

Public Types

using Point = Point2f #: 弧对应的同类型点

Public Functions

Arc2f() = default#: Default constructor,no initialization.

Arc2f(Point center, float radius, Radian start_angle, Radian end_angle)#: 从x轴正方向向y轴正方向描述弧圆心,半径,起始弧度和终止弧度,.

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

inline Radian angle() const#: Central angle.

inline float length() const#: Arc length.

Arc2f &norm(float mod = visionflow::geometry::kPi * 2)#: Normalized Arc radian.

Public Members

Point center#: The centre of the circle corresponding to the arc.

float radius = 0#: The radius of the circle corresponding to the arc.

Radian start_angle#: Arc start radian.

Radian end_angle#: Arc end radian.

struct Circle2f : public visionflow::geometry::ISurface #

浮点型圆

Public Types

using Point = Point2f #: 圆对应的同类型点

using Rect = Rect2f #: 圆对应的同类型矩形 envelope()

Public Functions

Circle2f() = default#: Default constructor,no initialization.

Circle2f(Point center, float radius)#: Constructor to set center and radius.

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

virtual float area() const override#: The area of the circle.

virtual float perimeter() const override#: Surface perimeter.

inline virtual Point2f centroid() const override#: Get the center of the circle.

inline virtual Rect2f bounding_box() const override#: Get the bounding box.

inline virtual RotateRect2f min_area_box() const override#: Get the min area bounding box.

Public Members

Point center#: 圆心

float radius = 0#: 半径

struct Circle2i : public visionflow::geometry::IGeometry #

整型圆

Public Types

using Point = Point2i #: 圆对应的同类型点

using Rect = Rect2i #: 圆对应的同类型矩形 envelope()

Public Functions

Circle2i() = default#: Default constructor,no initialization.

Circle2i(Point center, float radius)#: Constructor to set center and radius.

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

float area() const#: The area of the circle.

float perimeter() const#: Surface perimeter.

Public Members

Point center#: 圆心

float radius = 0#: 半径

struct MultiPoint2f : public std::vector<Point2f>, public visionflow::geometry::IGeometry #

浮点型点集

Warning

算法实现中不会清空原有数据,导致结果产生错误.

Public Functions

MultiPoint2f() = default#: Default constructor,no initialization.

MultiPoint2f(const std::initializer_list<Point> &rhs)#: Constructor taking std::initializer_list,filling the MultiPoint.

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

struct MultiPoint2i : public std::vector<Point2i>, public visionflow::geometry::IGeometry #

整型点集

Warning

算法实现中不会清空原有数据,导致结果产生错误.

Public Functions

MultiPoint2i() = default#: Default constructor,no initialization.

MultiPoint2i(const std::initializer_list<Point> &rhs)#: Constructor taking std::initializer_list,filling the MultiPoint.

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

struct MultiSegment2f : public std::vector<Segment2f>, public visionflow::geometry::IGeometry #

Multiple line Segment2f.

Public Types

using Segment = Segment2f #: Type of Segment.

Public Functions

MultiSegment2f() = default#: Default constructor, no initialization.

MultiSegment2f(const std::initializer_list<Segment> &rhs)#: Constructor taking std::initializer_list, filling the MultiSegment.

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

struct MultiPolygon2f : public std::vector<Polygon2f>, public visionflow::geometry::ISurface #

浮点型多多边形

Warning

算法实现中不会清空原有数据,导致结果产生错误.

Public Functions

MultiPolygon2f() = default#: Default constructor,no initialization.

explicit MultiPolygon2f(const MultiPolygon2i &rhs)#: Construct a new MultiPolygon with number type conversion.

MultiPolygon2f(const std::initializer_list<Polygon> &rhs)#: Constructor taking std::initializer_list,filling the MultiPolygon.

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

virtual float area() const override#: The area of the circle.

virtual float perimeter() const override#: Surface perimeter.

virtual Point2f centroid() const override#: Get the center of the circle.

virtual Rect2f bounding_box() const override#: Get the bounding box.

virtual RotateRect2f min_area_box() const override#: Get the min area bounding box.

struct MultiPolygon2i : public std::vector<Polygon2i>, public visionflow::geometry::IGeometry #

整型多多边形

Warning

算法实现中不会清空原有数据,导致结果产生错误.

Public Functions

MultiPolygon2i() = default#: Default constructor,no initialization.

MultiPolygon2i(const std::initializer_list<Polygon> &rhs)#: Constructor taking std::initializer_list,filling the MultiPolygon.

virtual IGeometry::GeometryType type() const override#

Enumerate value of geometry types.

Returns:: GeometryType

class Matrix3f#

3x3 float matrix.

Transformation matrix.

Public Functions

explicit Matrix3f(float diag = 1)#

Construct a 3*3 float matrix.

The value of the principal diagonal is diag, the rest are 0.

Parameters:: diag – The principal diagonal value. If rhs is 1(As default), it will construct a identity matrix.

Matrix3f(const std::array<float, kSide> &line1, const std::array<float, kSide> &line2, const std::array<float, kSide> &line3)#

Construct a new Matrix3f object.

Parameters:

line1 – The first row of matrix
line2 – The second row of matrix
line3 – The third row of matrix

Matrix3f(float mat_0_0, float mat_0_1, float mat_0_2, float mat_1_0, float mat_1_1, float mat_1_2, float mat_2_0, float mat_2_1, float mat_2_2)#

Construct a 3*3 float matrix.

Read parameters in first row the col order.

Matrix3f(const Matrix3f &rhs)#

Deep copy constructor.

It will not share the same references as the source object.

Parameters:: rhs – other Matrix3f.

Matrix3f(Matrix3f &&rhs) noexcept#

Move constructor.

Parameters:: rhs – other rvalue Matrix3f.

Matrix3f operator*(const Matrix3f &rhs) const#

Matrix multiplication.

A * B = C.

Parameters:: rhs – B matrix.
Returns:: Matrix3f C matrix.

float &at(size_t row, size_t col)#

Return a reference to the specified array element.

if row or col out of range, an visionflow::excepts::InvalidArgument will be thrown.

Parameters:

row – Index along the dimension 1.
col – Index along the dimension 2.

Throws:

visionflow::excepts::InvalidArgument – if row or col out of range.

Returns:

NO_DISCARD float& array element.

float at(size_t row, size_t col) const#

Return the specified array element.

if row or col out of range, an visionflow::excepts::InvalidArgument will be thrown.

Parameters:

row – Index along the dimension 1.
col – Index along the dimension 2.

Throws:

visionflow::excepts::InvalidArgument – if row or col out of range.

Returns:

NO_DISCARD float array element.

Public Static Attributes

static constexpr size_t kSide = 3#: The matrix row and col number.

enum visionflow::geometry::GeoConvertToIntStrategy#

Enumeration of convert_to_int() implementable strategies.

Values:

enumerator kRoundToNearestInt#: Round to the nearest integer number.

enumerator kRetainIntPart#: Retain only the integer part.

enum visionflow::geometry::GeoIsSampleFailType#

The enumeration GeoIsSampleFailType enumerates the possible reasons for which a geometry may be found as not simple or invalid by the is_simple() and is_valid() algorithms.

Values:

enumerator kNoFailure = 0#: The geometry is simple/valid.

enumerator kEmpty = 1#: The geometry is empty.

enumerator kDuplicatePoints = 2#: The geometry has (consecutive) duplicate points.

enumerator kSpikes = 4#: The geometry contains spikes.

enumerator kSelfIntersections = 8#: The geometry has self-intersections.

enumerator kPolygonOuterFailure = 16#: The exterior ring of geometry is not simple/valid.

enumerator kPolygonInnersFailure = 32#: The interior rings of geometry is not simple/valid.

enumerator kFewPoints = 64#: The geometry has a very small number of points.

enumerator kWrongTopologicalDimension = 128#: The topological dimension of the geometry is smaller than its dimension.

enumerator kInvalidCoordinate = 256#: The geometry has at least one point with an invalid coordinate.

enumerator kWrongOrientation = 512#: The actual orientation of the geometry is different from the one defined.

enumerator kInteriorRingsOutside = 1024#: The geometry contains interior rings that lie outside the exterior ring.

enumerator kNestedInteriorRings = 2048#: The geometry has nested interior rings.

Geometry algorithms#

group geo_append

Function to append element(s) into the geometry object, the function format is:

void append(Geometry1 &geometry, const Geometry2 &element);

param geometry:

[inout] Scalable geometry object

param element:

[in] Element to append into the geometry object.

geometry	element
LineString	Point, MultiPoint
MultiPoint	Point, MultiPoint
Ring	Point, MultiPoint

Functions

void append(visionflow::geometry::LineString2f &geometry, const visionflow::geometry::Point2f &element)#

void append(visionflow::geometry::LineString2f &geometry, const visionflow::geometry::MultiPoint2f &element)#

void append(visionflow::geometry::Ring2f &geometry, const visionflow::geometry::Point2f &element)#

void append(visionflow::geometry::Ring2f &geometry, const visionflow::geometry::MultiPoint2f &element)#

void append(visionflow::geometry::MultiPoint2f &geometry, const visionflow::geometry::Point2f &element)#

void append(visionflow::geometry::MultiPoint2f &geometry, const visionflow::geometry::MultiPoint2f &element)#

void append(visionflow::geometry::LineString2i &geometry, const visionflow::geometry::Point2i &element)#

void append(visionflow::geometry::LineString2i &geometry, const visionflow::geometry::MultiPoint2i &element)#

void append(visionflow::geometry::Ring2i &geometry, const visionflow::geometry::Point2i &element)#

void append(visionflow::geometry::Ring2i &geometry, const visionflow::geometry::MultiPoint2i &element)#

void append(visionflow::geometry::MultiPoint2i &geometry, const visionflow::geometry::Point2i &element)#

void append(visionflow::geometry::MultiPoint2i &geometry, const visionflow::geometry::MultiPoint2i &element)#

group area

多边形的面积

整型矩形面积

Warning

多边形的内环方向以及数据是否遵循约定方向等会对结果产生影响.

param rhs:

多边形,矩形以及圆

Areal
Ring
Polygon
Rect
RotateRect
Ellipse
Circle
MultiPolygon

param rhs:

Rect2i

return:

float 浮点型面积

return:

uint32_t 整型面积

Functions

float area(const visionflow::geometry::Ring2f &rhs)#

float area(const visionflow::geometry::Polygon2f &rhs)#

float area(const visionflow::geometry::Rect2f &rhs)#

float area(const visionflow::geometry::RotateRect2f &rhs)#

float area(const visionflow::geometry::Ellipse2f &rhs)#

float area(const visionflow::geometry::Circle2f &rhs)#

float area(const visionflow::geometry::MultiPolygon2f &rhs)#

float area(const visionflow::geometry::Ring2i &rhs)#

float area(const visionflow::geometry::Polygon2i &rhs)#

float area(const visionflow::geometry::RotateRect2i &rhs)#

float area(const visionflow::geometry::Circle2i &rhs)#

float area(const visionflow::geometry::MultiPolygon2i &rhs)#

uint32_t area(const visionflow::geometry::Rect2i &rhs)#

group equal_operator

向量和点之间的数值比较

param lhs:: The vector of the same type corresponding to the point
param rhs:: 任意类型的点
return:: true 点与向量数值上相等.
return:: false 点与向量数值上不等.

Functions

bool operator==(const visionflow::geometry::Vector2f &lhs, const visionflow::geometry::Point2f &rhs)#

bool operator==(const visionflow::geometry::Vector2i &lhs, const visionflow::geometry::Point2i &rhs)#

group addition_operator

向量+点=点

整型点+浮点型向量=浮点型点, 浮点型向量+整型点=浮点型点

param lhs:: The vector of the same type corresponding to the point
param rhs:: 任意类型的点
param lhs:: 整型点/浮点型向量
param rhs:: 浮点型向量/整型点
return:: Point 结果不改变点的类型
return:: Point2f 浮点型点

Functions

visionflow::geometry::Point2f operator+(const visionflow::geometry::Vector2f &lhs, const visionflow::geometry::Point2f &rhs)#

visionflow::geometry::Point2i operator+(const visionflow::geometry::Vector2i &lhs, const visionflow::geometry::Point2i &rhs)#

visionflow::geometry::Point2f operator+(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Vector2f &rhs)#

visionflow::geometry::Point2f operator+(const visionflow::geometry::Vector2f &lhs, const visionflow::geometry::Point2i &rhs)#

group subtraction_operator

点-点=向量

浮点型-整形点=浮点型向量

整型点-浮点型点=浮点型向量

整型点-浮点型向量=浮点型点

param lhs:: 被减点
param rhs:: 减点
param lhs:: 整型点
param rhs:: 浮点型向量
param lhs:: 整型点
param rhs:: 浮点型点
param lhs:: 浮点型点
param rhs:: 整形点
return:: Point::Vector The vector of the same type corresponding to the point
return:: Point2f 浮点型点
return:: Vector2f 浮点型向量
return:: Vector2f 浮点型向量

Functions

visionflow::geometry::Vector2f operator-(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Point2f &rhs)#

visionflow::geometry::Vector2i operator-(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Point2i &rhs)#

visionflow::geometry::Point2f operator-(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Vector2f &rhs)#

visionflow::geometry::Vector2f operator-(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Point2f &rhs)#

visionflow::geometry::Vector2f operator-(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Point2i &rhs)#

group multiplication_operator

点和Amplification of vectors

整型向量*浮点数=浮点型向量,浮点数*整型向量=浮点型向量

整型点*浮点数=浮点型点,浮点数*整型点=浮点型点

param lhs:: 点或向量的Elem
param rhs:: 任意类型的点或向量
param lhs:: 整形点/浮点数
param rhs:: 浮点数/整形点
param lhs:: 整型向量/浮点数
param rhs:: 浮点数/整型向量
return:: 结果不改变点或向量的类型
return:: Point2f 浮点型点
return:: Vector2f 浮点型向量

Functions

visionflow::geometry::Point2f operator*(const float &lhs, const visionflow::geometry::Point2f &rhs)#

visionflow::geometry::Point2i operator*(const int32_t &lhs, const visionflow::geometry::Point2i &rhs)#

visionflow::geometry::Vector2f operator*(const float &lhs, const visionflow::geometry::Vector2f &rhs)#

visionflow::geometry::Vector2i operator*(const int32_t &lhs, const visionflow::geometry::Vector2i &rhs)#

visionflow::geometry::Point2f operator*(const visionflow::geometry::Point2i &lhs, const float &rhs)#

visionflow::geometry::Point2f operator*(const float &lhs, const visionflow::geometry::Point2i &rhs)#

visionflow::geometry::Vector2f operator*(const visionflow::geometry::Vector2i &lhs, const float &rhs)#

visionflow::geometry::Vector2f operator*(const float &lhs, const visionflow::geometry::Vector2i &rhs)#

group add_point

将第一个点的值加上第二个

param lhs:: 被改变的任意类型的第一个点
param rhs:: 同类型的第二个点不发生变化

Functions

void add_point(visionflow::geometry::Point2f &lhs, const visionflow::geometry::Point2f &rhs)#

void add_point(visionflow::geometry::Point2i &lhs, const visionflow::geometry::Point2i &rhs)#

group add_value

将一个点的坐标加上相同值

param lhs:: 被改变的任意类型的点/点对应的同类型值
param rhs:: 点对应的同类型值/被改变的任意类型的点

Functions

void add_value(visionflow::geometry::Point2f &lhs, const float &rhs)#

void add_value(visionflow::geometry::Point2i &lhs, const int32_t &rhs)#

group cross_product

向量积,叉积

param lhs:: 任意类型的点
param rhs:: 同类型的点
return:: 点对应的同类型值

Functions

float cross_product(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Point2f &rhs)#

int32_t cross_product(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Point2i &rhs)#

group divide_point

将第一个点除以第二个点

Note

注意int和float不同产生的结果.

param lhs:: 被改变的任意类型的第一个点
param rhs:: 同类型的第二个点不发生变化

Functions

void divide_point(visionflow::geometry::Point2f &lhs, const visionflow::geometry::Point2f &rhs)#

void divide_point(visionflow::geometry::Point2i &lhs, const visionflow::geometry::Point2i &rhs)#

group divide_value

将一个点的坐标除以点对应的同类型的值

param lhs:: 被改变的任意类型的点
param rhs:: 点对应的同类型值

Functions

void divide_value(visionflow::geometry::Point2f &lhs, const float &rhs)#

void divide_value(visionflow::geometry::Point2i &lhs, const int32_t &rhs)#

group dot_product

数量积,点积

param lhs:: 任意类型的点或向量
param rhs:: 同类型的点或向量
return:: 点或向量对应的同类型的值

Functions

float dot_product(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Point2f &rhs)#

int32_t dot_product(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Point2i &rhs)#

float dot_product(const visionflow::geometry::Vector2f &lhs, const visionflow::geometry::Vector2f &rhs)#

int32_t dot_product(const visionflow::geometry::Vector2i &lhs, const visionflow::geometry::Vector2i &rhs)#

group multiply_point

将第一个点乘以第二个点

param lhs:: 被改变的任意类型的第一个点
param rhs:: 同类型的第二个点不发生变化

Functions

void multiply_point(visionflow::geometry::Point2f &lhs, const visionflow::geometry::Point2f &rhs)#

void multiply_point(visionflow::geometry::Point2i &lhs, const visionflow::geometry::Point2i &rhs)#

group multiply_value

将一个点的坐标乘以相同值

param lhs:: 被改变的任意类型的点
param rhs:: 点对应的同类型值

Functions

void multiply_value(visionflow::geometry::Point2f &lhs, const float &rhs)#

void multiply_value(visionflow::geometry::Point2i &lhs, const int32_t &rhs)#

group subtract_point

将第一个点减去第二个点

param lhs:: 被改变的任意类型的第一个点
param rhs:: 同类型的第二个点不发生改变

Functions

void subtract_point(visionflow::geometry::Point2f &lhs, const visionflow::geometry::Point2f &rhs)#

void subtract_point(visionflow::geometry::Point2i &lhs, const visionflow::geometry::Point2i &rhs)#

group subtract_value

将一个点的坐标减去相同值

param lhs:: 被改变的任意类型的点
param rhs:: 点对应的同类型值

Functions

void subtract_value(visionflow::geometry::Point2f &lhs, const float &rhs)#

void subtract_value(visionflow::geometry::Point2i &lhs, const int32_t &rhs)#

group azimuth

线段的方位角

向量的方位角

param lhs:: 任意类型的点或向量
param rhs:: 同类型的点或向量
param rhs:: 任意类型的向量
return:: 两点形成线段从x轴正方向向y轴正方向旋转的弧度(-𝝅, 𝝅]
return:: 原点(0,0)到向量所形成线段的方位角弧度(±𝝅)

Functions

visionflow::geometry::Radian azimuth(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Point2f &rhs)#

visionflow::geometry::Radian azimuth(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Point2i &rhs)#

visionflow::geometry::Radian azimuth(const visionflow::geometry::Vector2f &lhs, const visionflow::geometry::Vector2f &rhs)#

visionflow::geometry::Radian azimuth(const visionflow::geometry::Vector2i &lhs, const visionflow::geometry::Vector2i &rhs)#

visionflow::geometry::Radian azimuth(const visionflow::geometry::Vector2f &rhs)#

visionflow::geometry::Radian azimuth(const visionflow::geometry::Vector2i &rhs)#

group center

多边形中心,即外接平行矩形的中心

整型圆的中心

param rhs:

多边形,矩形和圆.

Areal
Ring
Polygon
Rect
RotateRect
Ellipse
Circle

param rhs:

整型圆

return:

Point2f 浮点型点

return:

整型点,即圆心.

Functions

visionflow::geometry::Point2f center(const visionflow::geometry::Ring2f &rhs)#

visionflow::geometry::Point2f center(const visionflow::geometry::Polygon2f &rhs)#

visionflow::geometry::Point2f center(const visionflow::geometry::Rect2f &rhs)#

visionflow::geometry::Point2f center(const visionflow::geometry::RotateRect2f &rhs)#

visionflow::geometry::Point2f center(const visionflow::geometry::Ellipse2f &rhs)#

visionflow::geometry::Point2f center(const visionflow::geometry::Circle2f &rhs)#

visionflow::geometry::Point2f center(const visionflow::geometry::Ring2i &rhs)#

visionflow::geometry::Point2f center(const visionflow::geometry::Polygon2i &rhs)#

visionflow::geometry::Point2f center(const visionflow::geometry::Rect2i &rhs)#

visionflow::geometry::Point2f center(const visionflow::geometry::RotateRect2i &rhs)#

visionflow::geometry::Point2f center(const visionflow::geometry::MultiPolygon2f &rhs)#

visionflow::geometry::Point2f center(const visionflow::geometry::MultiPolygon2i &rhs)#

visionflow::geometry::Point2i center(const visionflow::geometry::Circle2i &rhs)#

group centroid

多边形质心

整型圆质心

param rhs:

多边形,矩形和圆

Areal
Ring
Polygon
Rect
RotateRect
Ellipse
Circle

param rhs:

整型圆

return:

Point2f 浮点型点

return:

Point2i 整形点,即圆心

Functions

visionflow::geometry::Point2f centroid(const visionflow::geometry::Ring2f &rhs)#

visionflow::geometry::Point2f centroid(const visionflow::geometry::Polygon2f &rhs)#

visionflow::geometry::Point2f centroid(const visionflow::geometry::Rect2f &rhs)#

visionflow::geometry::Point2f centroid(const visionflow::geometry::RotateRect2f &rhs)#

visionflow::geometry::Point2f centroid(const visionflow::geometry::Ellipse2f &rhs)#

visionflow::geometry::Point2f centroid(const visionflow::geometry::Circle2f &rhs)#

visionflow::geometry::Point2f centroid(const visionflow::geometry::Ring2i &rhs)#

visionflow::geometry::Point2f centroid(const visionflow::geometry::Polygon2i &rhs)#

visionflow::geometry::Point2f centroid(const visionflow::geometry::Rect2i &rhs)#

visionflow::geometry::Point2f centroid(const visionflow::geometry::RotateRect2i &rhs)#

visionflow::geometry::Point2f centroid(const visionflow::geometry::MultiPolygon2f &rhs)#

visionflow::geometry::Point2f centroid(const visionflow::geometry::MultiPolygon2i &rhs)#

visionflow::geometry::Point2i centroid(const visionflow::geometry::Circle2i &rhs)#

group clear

清空几何图形数据

param rhs:

线或多边形

LinearOrAreal
LineString
Ring
Polygon
MultiPoint
MultiPolygon

Functions

void clear(visionflow::geometry::LineString2f &rhs)#

void clear(visionflow::geometry::Ring2f &rhs)#

void clear(visionflow::geometry::Polygon2f &rhs)#

void clear(visionflow::geometry::MultiPoint2f &rhs)#

void clear(visionflow::geometry::MultiPolygon2f &rhs)#

void clear(visionflow::geometry::LineString2i &rhs)#

void clear(visionflow::geometry::Ring2i &rhs)#

void clear(visionflow::geometry::Polygon2i &rhs)#

void clear(visionflow::geometry::MultiPoint2i &rhs)#

void clear(visionflow::geometry::MultiPolygon2i &rhs)#

group convert

几何图形之间的转换

param lhs:

几何图形

param rhs:

同类型的几何图形

lhs/rhs	Point	LineString	Ring	Polygon	Rect	RotateRect	Arc	Circle	Vector
Point	√	×	×	×	×	×	×	×	√
LineString	×	√	√	√	×	×	×	×	×
Ring	×	√	√	√	×	×	×	×	×
Polygon	×	×	×	√	×	×	×	×	×
Rect	×	×	√	√	√	×	×	×	×
RotateRect	×	×	√	√	×	×	×	×	×
Arc	×	×	×	×	×	×	×	√	×
Circle	×	×	×	×	×	×	×	×	×
Vector	×	×	×	×	×	×	×	×	×

Functions

void convert(const visionflow::geometry::Point2f &lhs, visionflow::geometry::Point2f &rhs)#

void convert(const visionflow::geometry::Point2f &lhs, visionflow::geometry::Vector2f &rhs)#

void convert(const visionflow::geometry::Point2i &lhs, visionflow::geometry::Point2f &rhs)#

void convert(const visionflow::geometry::Point2i &lhs, visionflow::geometry::Point2i &rhs)#

void convert(const visionflow::geometry::Point2i &lhs, visionflow::geometry::Vector2i &rhs)#

void convert(const visionflow::geometry::LineString2f &lhs, visionflow::geometry::LineString2f &rhs)#

void convert(const visionflow::geometry::LineString2f &lhs, visionflow::geometry::Ring2f &rhs)#

void convert(const visionflow::geometry::LineString2f &lhs, visionflow::geometry::Polygon2f &rhs)#

void convert(const visionflow::geometry::LineString2i &lhs, visionflow::geometry::LineString2i &rhs)#

void convert(const visionflow::geometry::LineString2i &lhs, visionflow::geometry::Ring2i &rhs)#

void convert(const visionflow::geometry::LineString2i &lhs, visionflow::geometry::Polygon2i &rhs)#

void convert(const visionflow::geometry::Ring2f &lhs, visionflow::geometry::LineString2f &rhs)#

void convert(const visionflow::geometry::Ring2f &lhs, visionflow::geometry::Ring2f &rhs)#

void convert(const visionflow::geometry::Ring2f &lhs, visionflow::geometry::Polygon2f &rhs)#

void convert(const visionflow::geometry::Ring2i &lhs, visionflow::geometry::LineString2i &rhs)#

void convert(const visionflow::geometry::Ring2i &lhs, visionflow::geometry::Ring2i &rhs)#

void convert(const visionflow::geometry::Ring2i &lhs, visionflow::geometry::Polygon2i &rhs)#

void convert(const visionflow::geometry::Polygon2f &lhs, visionflow::geometry::Polygon2f &rhs)#

void convert(const visionflow::geometry::Polygon2i &lhs, visionflow::geometry::Polygon2i &rhs)#

void convert(const visionflow::geometry::Rect2f &lhs, visionflow::geometry::Ring2f &rhs)#

void convert(const visionflow::geometry::Rect2f &lhs, visionflow::geometry::Polygon2f &rhs)#

void convert(const visionflow::geometry::Rect2f &lhs, visionflow::geometry::Rect2f &rhs)#

void convert(const visionflow::geometry::Rect2i &lhs, visionflow::geometry::Ring2i &rhs)#

void convert(const visionflow::geometry::Rect2i &lhs, visionflow::geometry::Polygon2i &rhs)#

void convert(const visionflow::geometry::Rect2i &lhs, visionflow::geometry::Rect2i &rhs)#

void convert(const visionflow::geometry::RotateRect2f &lhs, visionflow::geometry::Ring2f &rhs)#

void convert(const visionflow::geometry::RotateRect2f &lhs, visionflow::geometry::Polygon2f &rhs)#

void convert(const visionflow::geometry::RotateRect2i &lhs, visionflow::geometry::Ring2i &rhs)#

void convert(const visionflow::geometry::RotateRect2i &lhs, visionflow::geometry::Polygon2i &rhs)#

void convert(const visionflow::geometry::Arc2f &lhs, visionflow::geometry::Circle2f &rhs)#

void convert(const visionflow::geometry::Vector2f &lhs, visionflow::geometry::Vector2f &rhs)#

void convert(const visionflow::geometry::Vector2i &lhs, visionflow::geometry::Vector2i &rhs)#

void convert(const visionflow::geometry::Vector2i &lhs, visionflow::geometry::Vector2f &rhs)#

void convert(const visionflow::geometry::Segment2f &lhs, visionflow::geometry::Segment2f &rhs)#

void convert(const visionflow::geometry::Segment2i &lhs, visionflow::geometry::Segment2i &rhs)#

void convert(const visionflow::geometry::Segment2i &lhs, visionflow::geometry::Segment2f &rhs)#

void convert(const visionflow::geometry::LineString2i &lhs, visionflow::geometry::LineString2f &rhs)#

void convert(const visionflow::geometry::Ring2i &lhs, visionflow::geometry::Ring2f &rhs)#

void convert(const visionflow::geometry::Polygon2i &lhs, visionflow::geometry::Polygon2f &rhs)#

void convert(const visionflow::geometry::Rect2i &lhs, visionflow::geometry::Rect2f &rhs)#

void convert(const visionflow::geometry::MultiPolygon2i &lhs, visionflow::geometry::MultiPolygon2f &rhs)#

group convert_to_int

Convert to the corresponding integer number type.

type.

param geometry:: Input geometry.
param strategy:: Implementation strategy.
return:: The corresponding integer number type.

Functions

visionflow::geometry::Vector2i convert_to_int(const visionflow::geometry::Vector2f &geometry, visionflow::geometry::GeoConvertToIntStrategy strategy = visionflow::geometry::kRoundToNearestInt)#

visionflow::geometry::Point2i convert_to_int(const visionflow::geometry::Point2f &geometry, visionflow::geometry::GeoConvertToIntStrategy strategy = visionflow::geometry::kRoundToNearestInt)#

visionflow::geometry::Segment2i convert_to_int(const visionflow::geometry::Segment2f &geometry, visionflow::geometry::GeoConvertToIntStrategy strategy = visionflow::geometry::kRoundToNearestInt)#

visionflow::geometry::LineString2i convert_to_int(const visionflow::geometry::LineString2f &geometry, visionflow::geometry::GeoConvertToIntStrategy strategy = visionflow::geometry::kRoundToNearestInt)#

visionflow::geometry::Ring2i convert_to_int(const visionflow::geometry::Ring2f &geometry, visionflow::geometry::GeoConvertToIntStrategy strategy = visionflow::geometry::kRoundToNearestInt)#

visionflow::geometry::Polygon2i convert_to_int(const visionflow::geometry::Polygon2f &geometry, visionflow::geometry::GeoConvertToIntStrategy strategy = visionflow::geometry::kRoundToNearestInt)#

visionflow::geometry::Rect2i convert_to_int(const visionflow::geometry::Rect2f &geometry, visionflow::geometry::GeoConvertToIntStrategy strategy = visionflow::geometry::kRoundToNearestInt)#

visionflow::geometry::MultiPolygon2i convert_to_int(const visionflow::geometry::MultiPolygon2f &geometry, visionflow::geometry::GeoConvertToIntStrategy strategy = visionflow::geometry::kRoundToNearestInt)#

group convex_hull

Get the convex hull of the geometry.

Note

新的凸包将以x最小的点为起点,从x轴正方向向y轴正方向顺序排列.

Warning

对于点数不足3的图形会补全成3个点,这同时也会导致结果非法.

param geo_obj:

The geometry to get the convex hull.

Areal
Ring
Polygon

Functions

visionflow::geometry::Ring2f convex_hull(const visionflow::geometry::Ring2f &geo_obj)#

visionflow::geometry::Ring2i convex_hull(const visionflow::geometry::Ring2i &geo_obj)#

visionflow::geometry::Ring2f convex_hull(const visionflow::geometry::Polygon2f &geo_obj)#

visionflow::geometry::Ring2i convex_hull(const visionflow::geometry::Polygon2i &geo_obj)#

visionflow::geometry::Ring2f convex_hull(const visionflow::geometry::MultiPolygon2f &geo_obj)#

visionflow::geometry::Ring2i convex_hull(const visionflow::geometry::MultiPolygon2i &geo_obj)#

group correct

修正多边形的约定顺序和约定开闭包形式

conventionally open and closed packet forms

param rhs:

polygon object.

Areal
Ring
Polygon
MultiPolygon

Functions

void correct(visionflow::geometry::Ring2f &rhs)#

void correct(visionflow::geometry::Ring2i &rhs)#

void correct(visionflow::geometry::Polygon2f &rhs)#

void correct(visionflow::geometry::Polygon2i &rhs)#

void correct(visionflow::geometry::MultiPolygon2f &rhs)#

void correct(visionflow::geometry::MultiPolygon2i &rhs)#

group return_correct

修正多边形的约定顺序和约定开闭包形式

See also

correct()

Functions

visionflow::geometry::Ring2f return_correct(const visionflow::geometry::Ring2f &rhs)#

visionflow::geometry::Ring2i return_correct(const visionflow::geometry::Ring2i &rhs)#

visionflow::geometry::Polygon2f return_correct(const visionflow::geometry::Polygon2f &rhs)#

visionflow::geometry::Polygon2i return_correct(const visionflow::geometry::Polygon2i &rhs)#

visionflow::geometry::MultiPolygon2f return_correct(const visionflow::geometry::MultiPolygon2f &rhs)#

visionflow::geometry::MultiPolygon2i return_correct(const visionflow::geometry::MultiPolygon2i &rhs)#

group covered_by

whether the first geometry is covered by the second geometry

second geometry

The difference with the within algorithm is that this algorithm checks the border by default.

See also

within()

Note

Boundaries with intersections are also considered to be covered.

param lhs:

The first geometry object

param rhs:

The second geometry object

lhs/rhs	Point	LineString	Ring	Polygon	Rect	RotateRect	Arc	Circle	Vector
Point	√	√	√	√	√	√	×	√	×
LineString	×	√	√	√	√	√	×	×	×
Ring	×	×	√	√	√	√	×	×	×
Polygon	×	×	√	√	√	√	×	×	×
Rect	×	×	√	√	√	√	×	×	×
RotateRect	×	×	√	√	√	√	×	×	×
Arc	×	×	×	×	×	×	×	×	×
Circle	×	×	×	×	×	×	×	√	×
Vector	×	×	×	×	×	×	×	×	×

return:

bool

Functions

bool covered_by(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Point2f &rhs)#

bool covered_by(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::LineString2f &rhs)#

bool covered_by(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool covered_by(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool covered_by(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool covered_by(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool covered_by(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Circle2f &rhs)#

bool covered_by(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Point2i &rhs)#

bool covered_by(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::LineString2i &rhs)#

bool covered_by(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool covered_by(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool covered_by(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool covered_by(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool covered_by(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Circle2i &rhs)#

bool covered_by(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::LineString2f &rhs)#

bool covered_by(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool covered_by(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool covered_by(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool covered_by(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool covered_by(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::LineString2i &rhs)#

bool covered_by(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool covered_by(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool covered_by(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool covered_by(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool covered_by(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool covered_by(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool covered_by(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool covered_by(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool covered_by(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool covered_by(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool covered_by(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool covered_by(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool covered_by(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool covered_by(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool covered_by(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool covered_by(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool covered_by(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool covered_by(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool covered_by(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool covered_by(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool covered_by(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool covered_by(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool covered_by(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool covered_by(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool covered_by(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool covered_by(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool covered_by(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool covered_by(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool covered_by(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool covered_by(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool covered_by(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool covered_by(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool covered_by(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool covered_by(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool covered_by(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool covered_by(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool covered_by(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::Circle2f &rhs)#

bool covered_by(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::Circle2i &rhs)#

bool covered_by(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::MultiPolygon2f &rhs)#

bool covered_by(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::MultiPolygon2f &rhs)#

bool covered_by(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::MultiPolygon2f &rhs)#

bool covered_by(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::MultiPolygon2f &rhs)#

bool covered_by(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::MultiPolygon2f &rhs)#

group crosses

Whether the first line crosses the second geometric figure.

See also

covered_by()

Note

If the first geometry does not cross the boundary of the second geometry, it will be considered as covered.

param lhs:

line or other geometry object.

param rhs:

The second geometry

Geometry
Point
LineString
Ring
Polygon
Rect
RotateRect
Circle

return:

bool

Functions

bool crosses(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Point2f &rhs)#

bool crosses(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::LineString2f &rhs)#

bool crosses(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool crosses(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool crosses(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool crosses(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool crosses(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Circle2f &rhs)#

bool crosses(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Point2i &rhs)#

bool crosses(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::LineString2i &rhs)#

bool crosses(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool crosses(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool crosses(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool crosses(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool crosses(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Circle2i &rhs)#

bool crosses(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::MultiPolygon2f &rhs)#

bool crosses(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::LineString2f &rhs)#

group difference

Difference sets between two polygons.

Note

The algorithm does not clear the MultiPolygon of existing data, but adds the result to the MultiPolygon.

Warning

Imperfect support for integer geometry types.

param lhs:

Geometry object

param rhs:

Geometry object

lhs/rhs	Point	LineString	Ring	Polygon	Rect	RotateRect	Arc	Circle	Vector
Point	×	×	×	×	×	×	×	×	×
LineString	×	×	×	×	×	×	×	×	×
Ring	×	×	√	√	√	√	×	×	×
Polygon	×	×	√	√	√	√	×	×	×
Rect	×	×	√	√	√	√	×	×	×
RotateRect	×	×	√	√	√	√	×	×	×
Arc	×	×	×	×	×	×	×	×	×
Circle	×	×	×	×	×	×	×	×	×
Vector	×	×	×	×	×	×	×	×	×

param result:

MultiPolygons (or other type), difference sets between two polygons.

Functions

visionflow::geometry::MultiPolygon2f difference(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Ring2f &rhs)#

visionflow::geometry::MultiPolygon2f difference(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

visionflow::geometry::MultiPolygon2f difference(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Rect2f &rhs)#

visionflow::geometry::MultiPolygon2f difference(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

visionflow::geometry::MultiPolygon2i difference(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Ring2i &rhs)#

visionflow::geometry::MultiPolygon2i difference(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

visionflow::geometry::MultiPolygon2i difference(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Rect2i &rhs)#

visionflow::geometry::MultiPolygon2i difference(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

visionflow::geometry::MultiPolygon2f difference(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Ring2f &rhs)#

visionflow::geometry::MultiPolygon2f difference(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

visionflow::geometry::MultiPolygon2f difference(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Rect2f &rhs)#

visionflow::geometry::MultiPolygon2f difference(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

visionflow::geometry::MultiPolygon2i difference(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Ring2i &rhs)#

visionflow::geometry::MultiPolygon2i difference(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

visionflow::geometry::MultiPolygon2i difference(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Rect2i &rhs)#

visionflow::geometry::MultiPolygon2i difference(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

visionflow::geometry::MultiPolygon2f difference(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Ring2f &rhs)#

visionflow::geometry::MultiPolygon2f difference(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

visionflow::geometry::MultiPolygon2f difference(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Rect2f &rhs)#

visionflow::geometry::MultiPolygon2f difference(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

visionflow::geometry::MultiPolygon2i difference(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Ring2i &rhs)#

visionflow::geometry::MultiPolygon2i difference(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

visionflow::geometry::MultiPolygon2i difference(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Rect2i &rhs)#

visionflow::geometry::MultiPolygon2i difference(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

visionflow::geometry::MultiPolygon2f difference(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Ring2f &rhs)#

visionflow::geometry::MultiPolygon2f difference(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

visionflow::geometry::MultiPolygon2f difference(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Rect2f &rhs)#

visionflow::geometry::MultiPolygon2f difference(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

visionflow::geometry::MultiPolygon2i difference(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Ring2i &rhs)#

visionflow::geometry::MultiPolygon2i difference(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

visionflow::geometry::MultiPolygon2i difference(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Rect2i &rhs)#

visionflow::geometry::MultiPolygon2i difference(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

visionflow::geometry::MultiPolygon2f difference(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::MultiPolygon2f &rhs)#

visionflow::geometry::MultiPolygon2f difference(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::MultiPolygon2f &rhs)#

visionflow::geometry::MultiPolygon2f difference(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::MultiPolygon2f &rhs)#

visionflow::geometry::MultiPolygon2f difference(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::Ring2f &rhs)#

visionflow::geometry::MultiPolygon2f difference(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

group discrete_frechet_distance

线之间的frechet距离

几何图形之间最大的最短距离,用于描述相似度.

param lhs:: 线
param rhs:: 同类型的线
return:: float

Functions

float discrete_frechet_distance(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::LineString2f &rhs)#

float discrete_frechet_distance(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::LineString2i &rhs)#

group disjoint

几何图形是否相离

param lhs:

几何图形

param rhs:

同类型的几何图形

lhs/rhs	Point	LineString	Ring	Polygon	Rect	RotateRect	Arc	Circle	Vector
Point	√	√	√	√	√	√	×	√	×
LineString	√	√	√	√	√	√	×	√	×
Ring	√	√	√	√	√	√	×	√	×
Polygon	√	√	√	√	√	√	×	√	×
Rect	√	√	√	√	√	√	×	√	×
RotateRect	√	√	√	√	√	√	×	√	×
Arc	×	×	×	×	×	×	×	×	×
Circle	√	√	√	√	√	√	×	√	×
Vector	×	×	×	×	×	×	×	×	×

return:

bool

Functions

bool disjoint(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Point2f &rhs)#

bool disjoint(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::LineString2f &rhs)#

bool disjoint(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool disjoint(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool disjoint(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool disjoint(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool disjoint(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Circle2f &rhs)#

bool disjoint(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Point2i &rhs)#

bool disjoint(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::LineString2i &rhs)#

bool disjoint(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool disjoint(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool disjoint(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool disjoint(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool disjoint(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Circle2i &rhs)#

bool disjoint(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Point2f &rhs)#

bool disjoint(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::LineString2f &rhs)#

bool disjoint(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool disjoint(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool disjoint(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool disjoint(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool disjoint(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Circle2f &rhs)#

bool disjoint(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Point2i &rhs)#

bool disjoint(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::LineString2i &rhs)#

bool disjoint(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool disjoint(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool disjoint(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool disjoint(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool disjoint(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Circle2i &rhs)#

bool disjoint(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Point2f &rhs)#

bool disjoint(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::LineString2f &rhs)#

bool disjoint(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool disjoint(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool disjoint(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool disjoint(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool disjoint(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Circle2f &rhs)#

bool disjoint(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Point2i &rhs)#

bool disjoint(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::LineString2i &rhs)#

bool disjoint(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool disjoint(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool disjoint(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool disjoint(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool disjoint(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Circle2i &rhs)#

bool disjoint(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Point2f &rhs)#

bool disjoint(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::LineString2f &rhs)#

bool disjoint(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool disjoint(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool disjoint(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool disjoint(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool disjoint(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Circle2f &rhs)#

bool disjoint(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Point2i &rhs)#

bool disjoint(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::LineString2i &rhs)#

bool disjoint(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool disjoint(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool disjoint(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool disjoint(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool disjoint(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Circle2i &rhs)#

bool disjoint(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Point2f &rhs)#

bool disjoint(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::LineString2f &rhs)#

bool disjoint(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool disjoint(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool disjoint(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool disjoint(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool disjoint(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Circle2f &rhs)#

bool disjoint(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Point2i &rhs)#

bool disjoint(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::LineString2i &rhs)#

bool disjoint(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool disjoint(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool disjoint(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool disjoint(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool disjoint(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Circle2i &rhs)#

bool disjoint(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Point2f &rhs)#

bool disjoint(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::LineString2f &rhs)#

bool disjoint(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool disjoint(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool disjoint(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool disjoint(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool disjoint(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Circle2f &rhs)#

bool disjoint(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Point2i &rhs)#

bool disjoint(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::LineString2i &rhs)#

bool disjoint(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool disjoint(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool disjoint(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool disjoint(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool disjoint(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Circle2i &rhs)#

bool disjoint(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::Point2f &rhs)#

bool disjoint(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::LineString2f &rhs)#

bool disjoint(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool disjoint(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool disjoint(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool disjoint(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool disjoint(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::Circle2f &rhs)#

bool disjoint(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::Point2i &rhs)#

bool disjoint(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::LineString2i &rhs)#

bool disjoint(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool disjoint(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool disjoint(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool disjoint(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool disjoint(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::Circle2i &rhs)#

bool disjoint(const visionflow::geometry::Line2f &lhs, const visionflow::geometry::Line2f &rhs)#

bool disjoint(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::Point2f &rhs)#

bool disjoint(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::LineString2f &rhs)#

bool disjoint(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool disjoint(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool disjoint(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::MultiPolygon2f &rhs)#

bool disjoint(const visionflow::geometry::Line2f &lhs, const visionflow::geometry::Ellipse2f &rhs)#

bool disjoint(const visionflow::geometry::Ellipse2f &lhs, const visionflow::geometry::Line2f &rhs)#

group distance

几何图形之间的距离

param lhs:

几何图形

param rhs:

同类型的几何图形

lhs/rhs	Point	LineString	Ring	Polygon	Rect	RotateRect	Arc	Circle	Vector
Point	√	√	√	√	√	√	×	√	×
LineString	√	√	√	√	√	√	×	√	×
Ring	√	√	√	√	√	√	×	√	×
Polygon	√	√	√	√	√	√	×	√	×
Rect	√	√	√	√	√	√	×	√	×
RotateRect	√	√	√	√	√	√	×	√	×
Arc	×	×	×	×	×	×	×	×	×
Circle	√	√	√	√	√	√	×	√	×
Vector	×	×	×	×	×	×	×	×	×

return:

float

Functions

float distance(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Point2f &rhs)#

float distance(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::LineString2f &rhs)#

float distance(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Ring2f &rhs)#

float distance(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

float distance(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Rect2f &rhs)#

float distance(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

float distance(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Circle2f &rhs)#

float distance(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Point2i &rhs)#

float distance(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::LineString2i &rhs)#

float distance(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Ring2i &rhs)#

float distance(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

float distance(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Rect2i &rhs)#

float distance(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

float distance(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Circle2i &rhs)#

float distance(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Point2f &rhs)#

float distance(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::LineString2f &rhs)#

float distance(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Ring2f &rhs)#

float distance(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

float distance(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Rect2f &rhs)#

float distance(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

float distance(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Circle2f &rhs)#

float distance(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Point2i &rhs)#

float distance(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::LineString2i &rhs)#

float distance(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Ring2i &rhs)#

float distance(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

float distance(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Rect2i &rhs)#

float distance(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

float distance(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Circle2i &rhs)#

float distance(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Point2f &rhs)#

float distance(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::LineString2f &rhs)#

float distance(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Ring2f &rhs)#

float distance(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

float distance(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Rect2f &rhs)#

float distance(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

float distance(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Circle2f &rhs)#

float distance(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Point2i &rhs)#

float distance(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::LineString2i &rhs)#

float distance(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Ring2i &rhs)#

float distance(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

float distance(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Rect2i &rhs)#

float distance(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

float distance(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Circle2i &rhs)#

float distance(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Point2f &rhs)#

float distance(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::LineString2f &rhs)#

float distance(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Ring2f &rhs)#

float distance(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

float distance(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Rect2f &rhs)#

float distance(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

float distance(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Circle2f &rhs)#

float distance(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Point2i &rhs)#

float distance(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::LineString2i &rhs)#

float distance(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Ring2i &rhs)#

float distance(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

float distance(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Rect2i &rhs)#

float distance(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

float distance(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Circle2i &rhs)#

float distance(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Point2f &rhs)#

float distance(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::LineString2f &rhs)#

float distance(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Ring2f &rhs)#

float distance(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

float distance(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Rect2f &rhs)#

float distance(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

float distance(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Circle2f &rhs)#

float distance(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Point2i &rhs)#

float distance(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::LineString2i &rhs)#

float distance(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Ring2i &rhs)#

float distance(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

float distance(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Rect2i &rhs)#

float distance(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

float distance(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Circle2i &rhs)#

float distance(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Point2f &rhs)#

float distance(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::LineString2f &rhs)#

float distance(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Ring2f &rhs)#

float distance(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

float distance(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Rect2f &rhs)#

float distance(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

float distance(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Circle2f &rhs)#

float distance(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Point2i &rhs)#

float distance(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::LineString2i &rhs)#

float distance(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Ring2i &rhs)#

float distance(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

float distance(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Rect2i &rhs)#

float distance(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

float distance(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Circle2i &rhs)#

float distance(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::Point2f &rhs)#

float distance(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::LineString2f &rhs)#

float distance(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::Ring2f &rhs)#

float distance(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

float distance(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::Rect2f &rhs)#

float distance(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

float distance(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::Circle2f &rhs)#

float distance(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::Point2i &rhs)#

float distance(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::LineString2i &rhs)#

float distance(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::Ring2i &rhs)#

float distance(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

float distance(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::Rect2i &rhs)#

float distance(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

float distance(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::Circle2i &rhs)#

float distance(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::Point2f &rhs)#

float distance(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::LineString2f &rhs)#

float distance(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::Ring2f &rhs)#

float distance(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

float distance(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::Rect2f &rhs)#

float distance(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

float distance(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::Segment2f &rhs)#

float distance(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::MultiPolygon2f &rhs)#

float distance(const visionflow::geometry::Segment2f &lhs, const visionflow::geometry::Point2f &rhs)#

float distance(const visionflow::geometry::Segment2f &lhs, const visionflow::geometry::LineString2f &rhs)#

float distance(const visionflow::geometry::Segment2f &lhs, const visionflow::geometry::Ring2f &rhs)#

float distance(const visionflow::geometry::Segment2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

float distance(const visionflow::geometry::Segment2f &lhs, const visionflow::geometry::Rect2f &rhs)#

float distance(const visionflow::geometry::Segment2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

float distance(const visionflow::geometry::Segment2f &lhs, const visionflow::geometry::Segment2f &rhs)#

float distance(const visionflow::geometry::Segment2f &lhs, const visionflow::geometry::MultiPolygon2f &rhs)#

float distance(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Segment2f &rhs)#

float distance(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Segment2f &rhs)#

float distance(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Segment2f &rhs)#

float distance(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Segment2f &rhs)#

float distance(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Segment2f &rhs)#

float distance(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Segment2f &rhs)#

float distance(const visionflow::geometry::Segment2i &lhs, const visionflow::geometry::Point2i &rhs)#

float distance(const visionflow::geometry::Segment2i &lhs, const visionflow::geometry::LineString2i &rhs)#

float distance(const visionflow::geometry::Segment2i &lhs, const visionflow::geometry::Ring2i &rhs)#

float distance(const visionflow::geometry::Segment2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

float distance(const visionflow::geometry::Segment2i &lhs, const visionflow::geometry::Rect2i &rhs)#

float distance(const visionflow::geometry::Segment2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

float distance(const visionflow::geometry::Segment2i &lhs, const visionflow::geometry::Segment2i &rhs)#

float distance(const visionflow::geometry::Segment2i &lhs, const visionflow::geometry::MultiPolygon2i &rhs)#

float distance(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Segment2i &rhs)#

float distance(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Segment2i &rhs)#

float distance(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Segment2i &rhs)#

float distance(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Segment2i &rhs)#

float distance(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Segment2i &rhs)#

float distance(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Segment2i &rhs)#

float distance(const visionflow::geometry::MultiPolygon2i &lhs, const visionflow::geometry::Segment2i &rhs)#

float distance(const visionflow::geometry::Line2f &lhs, const visionflow::geometry::Point2f &rhs)#

float distance(const visionflow::geometry::Line2f &lhs, const visionflow::geometry::LineString2f &rhs)#

float distance(const visionflow::geometry::Line2f &lhs, const visionflow::geometry::Ring2f &rhs)#

float distance(const visionflow::geometry::Line2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

float distance(const visionflow::geometry::Line2f &lhs, const visionflow::geometry::Rect2f &rhs)#

float distance(const visionflow::geometry::Line2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

float distance(const visionflow::geometry::Line2f &lhs, const visionflow::geometry::Segment2f &rhs)#

float distance(const visionflow::geometry::Line2f &lhs, const visionflow::geometry::Line2f &rhs)#

float distance(const visionflow::geometry::Line2f &lhs, const visionflow::geometry::MultiPolygon2f &rhs)#

float distance(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Line2f &rhs)#

float distance(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Line2f &rhs)#

float distance(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Line2f &rhs)#

float distance(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Line2f &rhs)#

float distance(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Line2f &rhs)#

float distance(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Line2f &rhs)#

float distance(const visionflow::geometry::Segment2f &lhs, const visionflow::geometry::Line2f &rhs)#

float distance(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::Line2f &rhs)#

group envelope

最小外接矩形

param lhs:

线或多边形

param rhs:

线或多边形的最小外接矩形

LinearOrAreal
LineString
Ring
Polygon
RotateRect
Ellipse

Functions

visionflow::geometry::Rect2f envelope(const visionflow::geometry::LineString2f &lhs)#

visionflow::geometry::Rect2f envelope(const visionflow::geometry::Ring2f &lhs)#

visionflow::geometry::Rect2f envelope(const visionflow::geometry::Polygon2f &lhs)#

visionflow::geometry::Rect2f envelope(const visionflow::geometry::RotateRect2f &lhs)#

visionflow::geometry::Rect2f envelope(const visionflow::geometry::Ellipse2f &lhs)#

visionflow::geometry::Rect2i envelope(const visionflow::geometry::LineString2i &lhs)#

visionflow::geometry::Rect2i envelope(const visionflow::geometry::Ring2i &lhs)#

visionflow::geometry::Rect2i envelope(const visionflow::geometry::Polygon2i &lhs)#

visionflow::geometry::Rect2i envelope(const visionflow::geometry::RotateRect2i &lhs)#

visionflow::geometry::Rect2f envelope(const visionflow::geometry::MultiPolygon2f &lhs)#

visionflow::geometry::Rect2i envelope(const visionflow::geometry::MultiPolygon2i &lhs)#

group equals

几何图形是否相等

param lhs:

几何图形

param rhs:

同类型的几何图形

lhs/rhs	Point	LineString	Ring	Polygon	Rect	RotateRect	Arc	Circle	Vector
Point	√	×	×	×	×	×	×	×	√
LineString	×	√	×	×	×	×	×	×	×
Ring	×	×	√	√	√	√	×	×	×
Polygon	×	×	√	√	√	√	×	×	×
Rect	×	×	√	√	√	√	×	×	×
RotateRect	×	×	√	√	√	√	×	×	×
Arc	×	×	×	×	×	×	×	×	×
Circle	×	×	×	×	×	×	×	√	×
Vector	√	×	×	×	×	×	×	×	√

return:

bool

Functions

bool equals(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Point2f &rhs)#

bool equals(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Vector2f &rhs)#

bool equals(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Point2i &rhs)#

bool equals(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Vector2i &rhs)#

bool equals(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::LineString2f &rhs)#

bool equals(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::LineString2i &rhs)#

bool equals(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool equals(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool equals(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool equals(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool equals(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool equals(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool equals(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool equals(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool equals(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool equals(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool equals(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool equals(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool equals(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool equals(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool equals(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool equals(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool equals(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool equals(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool equals(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool equals(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool equals(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool equals(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool equals(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool equals(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool equals(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool equals(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool equals(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool equals(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool equals(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool equals(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool equals(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool equals(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool equals(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::Circle2f &rhs)#

bool equals(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::Circle2i &rhs)#

bool equals(const visionflow::geometry::Vector2f &lhs, const visionflow::geometry::Point2f &rhs)#

bool equals(const visionflow::geometry::Vector2f &lhs, const visionflow::geometry::Vector2f &rhs)#

bool equals(const visionflow::geometry::Vector2i &lhs, const visionflow::geometry::Point2i &rhs)#

bool equals(const visionflow::geometry::Vector2i &lhs, const visionflow::geometry::Vector2i &rhs)#

bool equals(const visionflow::geometry::Line2f &lhs, const visionflow::geometry::Line2f &rhs)#

bool equals(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::MultiPolygon2f &rhs)#

bool equals(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool equals(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::MultiPolygon2f &rhs)#

group segment_sampling

Integer points within a geometry.

Sampling from small to large along the y-axis and compressing from small to large along the x-axis.
For a line segment whose ends are exactly on the integer point, only the smaller y-axis coordinate is retained.
This also means that for line segments parallel to the x-axis in a geometry, only those located on the smaller of the y-axis will be retained.

param rhs:: Input geometry.
return:: MultiSegment2f The result of compressing consecutive points.

Functions

visionflow::geometry::MultiSegment2f segment_sampling(const visionflow::geometry::Ring2f &rhs)#

visionflow::geometry::MultiSegment2f segment_sampling(const visionflow::geometry::Polygon2f &rhs)#

visionflow::geometry::MultiSegment2f segment_sampling(const visionflow::geometry::MultiPolygon2f &rhs)#

visionflow::geometry::MultiSegment2f segment_sampling(const visionflow::geometry::Ring2i &rhs)#

visionflow::geometry::MultiSegment2f segment_sampling(const visionflow::geometry::Polygon2i &rhs)#

visionflow::geometry::MultiSegment2f segment_sampling(const visionflow::geometry::MultiPolygon2i &rhs)#

group intersection

几何图形之间的交集

Warning

对于整型几何图形的交集结果存在交点为浮点型时,会产生一定的问题.

param lhs:

[in] 几何图形

param rhs:

[in] 同类型的几何图形

param result:

[out] The intersection of geo1 and geo2

lhs/rhs	Point	LineString	Ring	Polygon	Rect	RotateRect	Arc	Circle	Vector
Point	√	√	√	√	√	√	×	×	×
LineString	√	√	√	√	×	√	×	×	×
Ring	√	√	√	√	×	√	×	×	×
Polygon	√	√	√	√	×	√	×	×	×
Rect	×	×	×	×	×	×	×	×	×
RotateRect	×	×	×	×	×	×	×	×	×
Arc	×	×	×	×	×	×	×	×	×
Circle	×	×	×	×	×	×	×	×	×
Vector	×	×	×	×	×	×	×	×	×

Functions

visionflow::geometry::MultiPoint2f intersection(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Point2f &rhs)#

visionflow::geometry::MultiPoint2f intersection(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::LineString2f &rhs)#

visionflow::geometry::MultiPoint2f intersection(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Ring2f &rhs)#

visionflow::geometry::MultiPoint2f intersection(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

visionflow::geometry::MultiPoint2f intersection(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Rect2f &rhs)#

visionflow::geometry::MultiPoint2f intersection(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

visionflow::geometry::MultiPoint2i intersection(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Point2i &rhs)#

visionflow::geometry::MultiPoint2i intersection(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::LineString2i &rhs)#

visionflow::geometry::MultiPoint2i intersection(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Ring2i &rhs)#

visionflow::geometry::MultiPoint2i intersection(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

visionflow::geometry::MultiPoint2i intersection(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Rect2i &rhs)#

visionflow::geometry::MultiPoint2i intersection(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

visionflow::geometry::MultiPoint2f intersection(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Point2f &rhs)#

visionflow::geometry::MultiPoint2f intersection(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::LineString2f &rhs)#

visionflow::geometry::MultiPoint2f intersection(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Ring2f &rhs)#

visionflow::geometry::MultiPoint2f intersection(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

visionflow::geometry::MultiPoint2f intersection(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

visionflow::geometry::MultiPoint2i intersection(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Point2i &rhs)#

visionflow::geometry::MultiPoint2i intersection(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::LineString2i &rhs)#

visionflow::geometry::MultiPoint2i intersection(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Ring2i &rhs)#

visionflow::geometry::MultiPoint2i intersection(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

visionflow::geometry::MultiPoint2i intersection(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

visionflow::geometry::MultiPoint2f intersection(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Point2f &rhs)#

visionflow::geometry::MultiPoint2f intersection(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::LineString2f &rhs)#

visionflow::geometry::MultiPolygon2f intersection(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Ring2f &rhs)#

visionflow::geometry::MultiPolygon2f intersection(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

visionflow::geometry::MultiPolygon2f intersection(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::MultiPolygon2f &rhs)#

visionflow::geometry::MultiPolygon2f intersection(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

visionflow::geometry::MultiPoint2i intersection(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Point2i &rhs)#

visionflow::geometry::MultiPoint2i intersection(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::LineString2i &rhs)#

visionflow::geometry::MultiPolygon2i intersection(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Ring2i &rhs)#

visionflow::geometry::MultiPolygon2i intersection(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

visionflow::geometry::MultiPolygon2i intersection(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

visionflow::geometry::MultiPoint2f intersection(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Point2f &rhs)#

visionflow::geometry::MultiPoint2f intersection(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::LineString2f &rhs)#

visionflow::geometry::MultiPolygon2f intersection(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Ring2f &rhs)#

visionflow::geometry::MultiPolygon2f intersection(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

visionflow::geometry::MultiPolygon2f intersection(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

visionflow::geometry::MultiPoint2i intersection(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Point2i &rhs)#

visionflow::geometry::MultiPoint2i intersection(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::LineString2i &rhs)#

visionflow::geometry::MultiPolygon2i intersection(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Ring2i &rhs)#

visionflow::geometry::MultiPolygon2i intersection(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

visionflow::geometry::MultiPolygon2i intersection(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

visionflow::geometry::MultiPoint2f intersection(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Point2f &rhs)#

visionflow::geometry::MultiPoint2f intersection(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::LineString2f &rhs)#

visionflow::geometry::MultiPolygon2f intersection(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Ring2f &rhs)#

visionflow::geometry::MultiPolygon2f intersection(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

visionflow::geometry::MultiPolygon2f intersection(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

visionflow::geometry::MultiPoint2i intersection(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Point2i &rhs)#

visionflow::geometry::MultiPoint2i intersection(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::LineString2i &rhs)#

visionflow::geometry::MultiPolygon2i intersection(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Ring2i &rhs)#

visionflow::geometry::MultiPolygon2i intersection(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

visionflow::geometry::MultiPolygon2i intersection(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

visionflow::geometry::Point2f intersection(const visionflow::geometry::Line2f &lhs, const visionflow::geometry::Line2f &rhs)#

visionflow::geometry::MultiPoint2f intersection(const visionflow::geometry::Line2f &lhs, const visionflow::geometry::Circle2f &rhs)#

visionflow::geometry::MultiPoint2f intersection(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::Line2f &rhs)#

visionflow::geometry::MultiPolygon2f intersection(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::MultiPolygon2f &rhs)#

visionflow::geometry::MultiPolygon2f intersection(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

visionflow::geometry::MultiPolygon2f intersection(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::Ring2f &rhs)#

visionflow::geometry::MultiPolygon2f intersection(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::MultiPolygon2f &rhs)#

visionflow::geometry::MultiPoint2f intersection(const visionflow::geometry::Ellipse2f &lhs, const visionflow::geometry::Line2f &rhs)#

visionflow::geometry::MultiPoint2f intersection(const visionflow::geometry::Line2f &lhs, const visionflow::geometry::Ellipse2f &rhs)#

group intersects

几何图形是否相交(存在至少一个交点)

param lhs:

几何图形

param rhs:

同类型的几何图形

lhs/rhs	Point	LineString	Ring	Polygon	Rect	RotateRect	Arc	Circle	Vector
Point	√	√	√	√	√	√	×	√	×
LineString	√	√	√	√	√	√	×	√	×
Ring	√	√	√	√	√	√	×	√	×
Polygon	√	√	√	√	√	√	×	√	×
Rect	√	√	√	√	√	√	×	√	×
RotateRect	√	√	√	√	√	√	×	√	×
Arc	×	×	×	×	×	×	×	×	×
Circle	√	√	√	√	√	√	×	√	×
Vector	×	×	×	×	×	×	×	×	×

Functions

bool intersects(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Point2f &rhs)#

bool intersects(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::LineString2f &rhs)#

bool intersects(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool intersects(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool intersects(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool intersects(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool intersects(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Circle2f &rhs)#

bool intersects(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Point2i &rhs)#

bool intersects(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::LineString2i &rhs)#

bool intersects(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool intersects(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool intersects(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool intersects(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool intersects(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Circle2i &rhs)#

bool intersects(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Point2f &rhs)#

bool intersects(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::LineString2f &rhs)#

bool intersects(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool intersects(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool intersects(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool intersects(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool intersects(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Circle2f &rhs)#

bool intersects(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Point2i &rhs)#

bool intersects(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::LineString2i &rhs)#

bool intersects(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool intersects(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool intersects(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool intersects(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool intersects(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Circle2i &rhs)#

bool intersects(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Point2f &rhs)#

bool intersects(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::LineString2f &rhs)#

bool intersects(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool intersects(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool intersects(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool intersects(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool intersects(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Circle2f &rhs)#

bool intersects(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Point2i &rhs)#

bool intersects(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::LineString2i &rhs)#

bool intersects(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool intersects(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool intersects(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool intersects(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool intersects(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Circle2i &rhs)#

bool intersects(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Point2f &rhs)#

bool intersects(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::LineString2f &rhs)#

bool intersects(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool intersects(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool intersects(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool intersects(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool intersects(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Circle2f &rhs)#

bool intersects(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Point2i &rhs)#

bool intersects(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::LineString2i &rhs)#

bool intersects(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool intersects(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool intersects(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool intersects(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool intersects(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Circle2i &rhs)#

bool intersects(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Point2f &rhs)#

bool intersects(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::LineString2f &rhs)#

bool intersects(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool intersects(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool intersects(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool intersects(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool intersects(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Circle2f &rhs)#

bool intersects(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Point2i &rhs)#

bool intersects(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::LineString2i &rhs)#

bool intersects(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool intersects(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool intersects(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool intersects(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool intersects(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Circle2i &rhs)#

bool intersects(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Point2f &rhs)#

bool intersects(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::LineString2f &rhs)#

bool intersects(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool intersects(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool intersects(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool intersects(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool intersects(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Circle2f &rhs)#

bool intersects(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Point2i &rhs)#

bool intersects(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::LineString2i &rhs)#

bool intersects(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool intersects(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool intersects(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool intersects(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool intersects(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Circle2i &rhs)#

bool intersects(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::Point2f &rhs)#

bool intersects(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::LineString2f &rhs)#

bool intersects(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool intersects(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool intersects(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool intersects(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool intersects(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::Circle2f &rhs)#

bool intersects(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::Point2i &rhs)#

bool intersects(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::LineString2i &rhs)#

bool intersects(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool intersects(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool intersects(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool intersects(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool intersects(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::Circle2i &rhs)#

bool intersects(const visionflow::geometry::Line2f &lhs, const visionflow::geometry::Line2f &rhs)#

bool intersects(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::MultiPolygon2f &rhs)#

bool intersects(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool intersects(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool intersects(const visionflow::geometry::Line2f &lhs, const visionflow::geometry::Ellipse2f &rhs)#

bool intersects(const visionflow::geometry::Ellipse2f &lhs, const visionflow::geometry::Line2f &rhs)#

group is_empty

判断几何图形是否为空

param rhs:

线或多边形

LinearOrAreal
LineString
Ring
Polygon
MultiPoint
MultiPolygon

Functions

bool is_empty(const visionflow::geometry::LineString2f &rhs)#

bool is_empty(const visionflow::geometry::Ring2f &rhs)#

bool is_empty(const visionflow::geometry::Polygon2f &rhs)#

bool is_empty(const visionflow::geometry::MultiPoint2f &rhs)#

bool is_empty(const visionflow::geometry::MultiPolygon2f &rhs)#

bool is_empty(const visionflow::geometry::LineString2i &rhs)#

bool is_empty(const visionflow::geometry::Ring2i &rhs)#

bool is_empty(const visionflow::geometry::Polygon2i &rhs)#

bool is_empty(const visionflow::geometry::MultiPoint2i &rhs)#

bool is_empty(const visionflow::geometry::MultiPolygon2i &rhs)#

group is_rect

判断几何图像能否转换成矩形.

param ring:: Ring.
return:: true if Ring can be converted to Rect.

Functions

bool is_rect(const visionflow::geometry::Ring2f &ring)#

bool is_rect(const visionflow::geometry::Ring2i &ring)#

group is_axial_rect

判断几何图像能否转成平行坐标轴的矩形.

param ring:: Ring.
return:: true if Ring can be converted to Rect and Rect is parallel coordinate axis.

Functions

bool is_axial_rect(const visionflow::geometry::Ring2f &ring)#

bool is_axial_rect(const visionflow::geometry::Ring2i &ring)#

group is_rotate_rect

判断几何图像能否转成不平行坐标轴的矩形.

param ring:: Ring.
return:: true if Ring can be converted to Rect and Rect is not parallel coordinate axis.

Functions

bool is_rotate_rect(const visionflow::geometry::Ring2f &ring)#

bool is_rotate_rect(const visionflow::geometry::Ring2i &ring)#

group is_simple

判断几何图形是否是简单几何图形

param rhs:

线或多边形

LinearOrAreal
LineString
Ring
Polygon

return:

Linear:非空,没有重复点,不自交,没有尖峰.

return:

Areal:非空,没有重复点.

Functions

bool is_simple(const visionflow::geometry::LineString2f &rhs)#

bool is_simple(const visionflow::geometry::Ring2f &rhs)#

bool is_simple(const visionflow::geometry::Polygon2f &rhs)#

bool is_simple(const visionflow::geometry::LineString2i &rhs)#

bool is_simple(const visionflow::geometry::Ring2i &rhs)#

bool is_simple(const visionflow::geometry::Polygon2i &rhs)#

group return_is_simple

判断几何图形是否是简单几何图形

See also

is_simple()

See also

GeoIsSampleFailType

param rhs:: 线或多边形
return:: GeoIsSampleFailType 几何图形不为简单几何图形的错误信息

Functions

visionflow::geometry::GeoIsSampleFailType return_is_simple(const visionflow::geometry::LineString2f &rhs)#

visionflow::geometry::GeoIsSampleFailType return_is_simple(const visionflow::geometry::LineString2i &rhs)#

visionflow::geometry::GeoIsSampleFailType return_is_simple(const visionflow::geometry::Ring2f &rhs)#

visionflow::geometry::GeoIsSampleFailType return_is_simple(const visionflow::geometry::Ring2i &rhs)#

visionflow::geometry::GeoIsSampleFailType return_is_simple(const visionflow::geometry::Polygon2f &rhs)#

visionflow::geometry::GeoIsSampleFailType return_is_simple(const visionflow::geometry::Polygon2i &rhs)#

group is_valid

判断几何图形数据是否有效

param rhs:

线或多边形

LinearOrAreal
LineString
Ring
Polygon
MultiPolygon

return:

Linear:没有无效点,至少有两个点,满足拓扑维数(存在至少两个不相同点),可以有尖峰.

return:

Ring:没有无效点,至少有三个点(闭包四个点),满足拓扑维数(存在至少三个不相同点), 可以有重复点,没有尖峰,没有自交,满足数据顺序定义.

return:

Polygon:外环内环都是有效的,多边形不自交,内环在外环内,内环不存在嵌套.

Functions

bool is_valid(const visionflow::geometry::LineString2f &rhs)#

bool is_valid(const visionflow::geometry::Ring2f &rhs)#

bool is_valid(const visionflow::geometry::Polygon2f &rhs)#

bool is_valid(const visionflow::geometry::MultiPolygon2f &rhs)#

bool is_valid(const visionflow::geometry::LineString2i &rhs)#

bool is_valid(const visionflow::geometry::Ring2i &rhs)#

bool is_valid(const visionflow::geometry::Polygon2i &rhs)#

group return_is_valid

判断几何图形数据是否有效

See also

is_valid()

See also

GeoIsSampleFailType

param rhs:: 线或多边形
return:: GeoIsSampleFailType 几何图形数据失效的错误信息

Functions

visionflow::geometry::GeoIsSampleFailType return_is_valid(const visionflow::geometry::LineString2f &rhs)#

visionflow::geometry::GeoIsSampleFailType return_is_valid(const visionflow::geometry::LineString2i &rhs)#

visionflow::geometry::GeoIsSampleFailType return_is_valid(const visionflow::geometry::Ring2f &rhs)#

visionflow::geometry::GeoIsSampleFailType return_is_valid(const visionflow::geometry::Ring2i &rhs)#

visionflow::geometry::GeoIsSampleFailType return_is_valid(const visionflow::geometry::Polygon2f &rhs)#

visionflow::geometry::GeoIsSampleFailType return_is_valid(const visionflow::geometry::Polygon2i &rhs)#

group length

几何图形的长度

param rhs:

线或向量

LinearOrVector
LineString
Vector

return:

float

Functions

float length(const visionflow::geometry::LineString2f &rhs)#

float length(const visionflow::geometry::LineString2i &rhs)#

float length(const visionflow::geometry::Vector2f &rhs)#

float length(const visionflow::geometry::Vector2i &rhs)#

group line_interpolate

线上的线性插值

Warning

对于整型线的插值结果存在浮点型时,会产生一定的问题.

param lhs:: 线
param rhs:: 点集或单点
param result:: 单点则为起点起插值的第一个点,点集则是全部点.

Functions

void line_interpolate(const visionflow::geometry::LineString2f &lhs, const float &rhs, visionflow::geometry::Point2f &result)#

void line_interpolate(const visionflow::geometry::LineString2i &lhs, const float &rhs, visionflow::geometry::Point2i &result)#

void line_interpolate(const visionflow::geometry::LineString2f &lhs, const float &rhs, visionflow::geometry::MultiPoint2f &result)#

void line_interpolate(const visionflow::geometry::LineString2i &lhs, const float &rhs, visionflow::geometry::MultiPoint2i &result)#

group min_area_rect

最小面积外接矩形

param lhs:

多边形

throws visionflow::excepts::InvalidArgument:

if the geometry is not valid.

return:

多边形的最小外包围矩形

Areal
Ring
Polygon
Ellipse

Functions

visionflow::geometry::RotateRect2f min_area_rect(const visionflow::geometry::Ring2f &lhs)#

visionflow::geometry::RotateRect2f min_area_rect(const visionflow::geometry::Polygon2f &lhs)#

visionflow::geometry::RotateRect2f min_area_rect(const visionflow::geometry::Ellipse2f &lhs)#

visionflow::geometry::RotateRect2f min_area_rect(const visionflow::geometry::MultiPolygon2f &lhs)#

group overlaps

多边形是否有重叠部分

对于其中一个多边形完全覆盖另一个多边形的情况,被认为是false.

param lhs:

多边形

param rhs:

See also

reverse()

Functions

visionflow::geometry::LineString2f return_reverse(const visionflow::geometry::LineString2f &rhs)#

visionflow::geometry::Ring2f return_reverse(const visionflow::geometry::Ring2f &rhs)#

visionflow::geometry::Polygon2f return_reverse(const visionflow::geometry::Polygon2f &rhs)#

visionflow::geometry::LineString2i return_reverse(const visionflow::geometry::LineString2i &rhs)#

visionflow::geometry::Ring2i return_reverse(const visionflow::geometry::Ring2i &rhs)#

visionflow::geometry::Polygon2i return_reverse(const visionflow::geometry::Polygon2i &rhs)#

visionflow::geometry::MultiPolygon2f return_reverse(const visionflow::geometry::MultiPolygon2f &rhs)#

group simplify

Simplify the geometry with Douglas-Peucker polygon approximation algorithm, and points smaller than a given threshold are removed.

Warning

The result will be forced to be modified as a closure if it’s line.

param lhs:: line of polygon.
param rhs:: threshold.

Functions

void simplify(visionflow::geometry::LineString2f &lhs, const float &rhs)#

void simplify(visionflow::geometry::Ring2f &lhs, const float &rhs)#

void simplify(visionflow::geometry::Polygon2f &lhs, const float &rhs)#

void simplify(visionflow::geometry::LineString2i &lhs, const float &rhs)#

void simplify(visionflow::geometry::Ring2i &lhs, const float &rhs)#

void simplify(visionflow::geometry::Polygon2i &lhs, const float &rhs)#

group return_simplify

简化几何图形

See also

simplify()

Functions

visionflow::geometry::LineString2f return_simplify(const visionflow::geometry::LineString2f &lhs, const float &rhs)#

visionflow::geometry::Ring2f return_simplify(const visionflow::geometry::Ring2f &lhs, const float &rhs)#

visionflow::geometry::Polygon2f return_simplify(const visionflow::geometry::Polygon2f &lhs, const float &rhs)#

visionflow::geometry::LineString2i return_simplify(const visionflow::geometry::LineString2i &lhs, const float &rhs)#

visionflow::geometry::Ring2i return_simplify(const visionflow::geometry::Ring2i &lhs, const float &rhs)#

visionflow::geometry::Polygon2i return_simplify(const visionflow::geometry::Polygon2i &lhs, const float &rhs)#

group sym_difference

几何图形之间的对称差

Warning

对于整型几何图形的对称差结果存在交点为浮点型时,会产生一定的问题.

Warning

几何结构不遵守约定顺序可能会产生一定的问题.

param lhs:

多边形

param rhs:

同数据类型的多边形

lhs/rhs	Point	LineString	Ring	Polygon	Rect	RotateRect	Arc	Circle	Vector
Point	×	×	×	×	×	×	×	×	×
LineString	×	×	×	×	×	×	×	×	×
Ring	×	×	√	√	×	×	×	×	×
Polygon	×	×	√	√	×	×	×	×	×
Rect	×	×	×	×	×	×	×	×	×
RotateRect	×	×	×	×	×	×	×	×	×
Arc	×	×	×	×	×	×	×	×	×
Circle	×	×	×	×	×	×	×	×	×
Vector	×	×	×	×	×	×	×	×	×

return:

同数据类型的多多边形

Functions

visionflow::geometry::MultiPolygon2f sym_difference(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Ring2f &rhs)#

visionflow::geometry::MultiPolygon2f sym_difference(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

visionflow::geometry::MultiPolygon2f sym_difference(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Ring2f &rhs)#

visionflow::geometry::MultiPolygon2f sym_difference(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

visionflow::geometry::MultiPolygon2i sym_difference(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Ring2i &rhs)#

visionflow::geometry::MultiPolygon2i sym_difference(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

visionflow::geometry::MultiPolygon2i sym_difference(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Ring2i &rhs)#

visionflow::geometry::MultiPolygon2i sym_difference(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

visionflow::geometry::MultiPolygon2f sym_difference(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::MultiPolygon2f &rhs)#

visionflow::geometry::MultiPolygon2f sym_difference(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::Ring2f &rhs)#

visionflow::geometry::MultiPolygon2f sym_difference(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

group touches

几何图形之间是否触及(相切,不重叠)

param lhs:

多边形

param rhs:

See also

unique()

Functions

visionflow::geometry::LineString2f return_unique(const visionflow::geometry::LineString2f &rhs)#

visionflow::geometry::Ring2f return_unique(const visionflow::geometry::Ring2f &rhs)#

visionflow::geometry::Polygon2f return_unique(const visionflow::geometry::Polygon2f &rhs)#

visionflow::geometry::LineString2i return_unique(const visionflow::geometry::LineString2i &rhs)#

visionflow::geometry::Ring2i return_unique(const visionflow::geometry::Ring2i &rhs)#

visionflow::geometry::Polygon2i return_unique(const visionflow::geometry::Polygon2i &rhs)#

visionflow::geometry::MultiPolygon2f return_unique(const visionflow::geometry::MultiPolygon2f &rhs)#

group vertical

Point to the vertical foot of the line.

Functions

visionflow::geometry::Point2f vertical(const visionflow::geometry::Point2f &point, const visionflow::geometry::Line2f &line)#

visionflow::geometry::Point2f vertical(const visionflow::geometry::Line2f &line, const visionflow::geometry::Point2f &point)#

group within

第一个几何图形是否在第二个几何图形内部

区别于 covered_by() 当第一个几何图形的顶点落在第二个几何图形边上时,返回false.
当第二个几何图形的顶点落在第一个几何图像边上时(例如第二个几何图形是凹多边形),返回true.

See also

covered_by()

param lhs:

几何图形

param rhs:

lhs/rhs	Point	LineString	Ring	Polygon	Rect	RotateRect	Arc	Circle	Vector
Point	√	√	√	√	√	√	×	√	×
LineString	×	√	√	√	√	√	×	√	×
Ring	×	×	√	√	√	√	×	√	×
Polygon	×	×	√	√	√	√	×	√	×
Rect	×	×	√	√	√	√	×	√	×
RotateRect	×	×	√	√	√	√	×	√	×
Arc	×	×	×	×	×	×	×	×	×
Circle	×	×	√	√	√	√	×	√	×
Vector	×	×	×	×	×	×	×	×	×

return:

bool

Functions

bool within(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Point2f &rhs)#

bool within(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::LineString2f &rhs)#

bool within(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool within(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool within(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool within(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool within(const visionflow::geometry::Point2f &lhs, const visionflow::geometry::Circle2f &rhs)#

bool within(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Point2i &rhs)#

bool within(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::LineString2i &rhs)#

bool within(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool within(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool within(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool within(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool within(const visionflow::geometry::Point2i &lhs, const visionflow::geometry::Circle2i &rhs)#

bool within(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::LineString2f &rhs)#

bool within(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool within(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool within(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool within(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool within(const visionflow::geometry::LineString2f &lhs, const visionflow::geometry::Circle2f &rhs)#

bool within(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::LineString2i &rhs)#

bool within(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool within(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool within(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool within(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool within(const visionflow::geometry::LineString2i &lhs, const visionflow::geometry::Circle2i &rhs)#

bool within(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool within(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool within(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool within(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool within(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::Circle2f &rhs)#

bool within(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool within(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool within(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool within(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool within(const visionflow::geometry::Ring2i &lhs, const visionflow::geometry::Circle2i &rhs)#

bool within(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool within(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool within(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool within(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool within(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::Circle2f &rhs)#

bool within(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool within(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool within(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool within(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool within(const visionflow::geometry::Polygon2i &lhs, const visionflow::geometry::Circle2i &rhs)#

bool within(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool within(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool within(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool within(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool within(const visionflow::geometry::Rect2f &lhs, const visionflow::geometry::Circle2f &rhs)#

bool within(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool within(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool within(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool within(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool within(const visionflow::geometry::Rect2i &lhs, const visionflow::geometry::Circle2i &rhs)#

bool within(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool within(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool within(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool within(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool within(const visionflow::geometry::RotateRect2f &lhs, const visionflow::geometry::Circle2f &rhs)#

bool within(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool within(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool within(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool within(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool within(const visionflow::geometry::RotateRect2i &lhs, const visionflow::geometry::Circle2i &rhs)#

bool within(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool within(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool within(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::Rect2f &rhs)#

bool within(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::RotateRect2f &rhs)#

bool within(const visionflow::geometry::Circle2f &lhs, const visionflow::geometry::Circle2f &rhs)#

bool within(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::Ring2i &rhs)#

bool within(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::Polygon2i &rhs)#

bool within(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::Rect2i &rhs)#

bool within(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::RotateRect2i &rhs)#

bool within(const visionflow::geometry::Circle2i &lhs, const visionflow::geometry::Circle2i &rhs)#

bool within(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::MultiPolygon2f &rhs)#

bool within(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::Ring2f &rhs)#

bool within(const visionflow::geometry::MultiPolygon2f &lhs, const visionflow::geometry::Polygon2f &rhs)#

bool within(const visionflow::geometry::Ring2f &lhs, const visionflow::geometry::MultiPolygon2f &rhs)#

bool within(const visionflow::geometry::Polygon2f &lhs, const visionflow::geometry::MultiPolygon2f &rhs)#

group sampling

Sampling ideal geometry types to point set geometry types. Ideal geometry types is geometry types like Rectangle, Circle, Ellipse, etc. Point set geometry types is geometry types described by vertices, like ring, polygon, etc.

It Only support Equiangular sampling currently. The sampling center is the center of the geometry.

param geometry:

Geometry object to be sampling, support:

Geometry
Circle2f
Ellipse2f

param point_num:

The number of sampling points, should be greater than or equal to 3.

Functions

visionflow::geometry::Ring2f sampling(const visionflow::geometry::Circle2f &geometry, size_t point_num)#

visionflow::geometry::Ring2f sampling(const visionflow::geometry::Ellipse2f &geometry, size_t point_num)#

group transform_rotate

Geometry rotate transform.

Cartesian coordinate system(the origin of the first quadrant is in

the lower left corner), follow

Radian

definition direction.

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

param geometry:

Geometry.

Geometry
Point
LineString
Ring
Polygon
RotateRect
Ellipse
Vector
Segment
MultiPoint
MultiPolygon

param radian:

Rotation radian.

return:

The result is consistent with the input geometry.

param rect:

Rect.

param radian:

Rotation radian.

return:

the result is RotateRect.

Functions

visionflow::geometry::Point2f transform_rotate(const visionflow::geometry::Point2f &geometry, const visionflow::geometry::Radian &radian)#

visionflow::geometry::LineString2f transform_rotate(const visionflow::geometry::LineString2f &geometry, const visionflow::geometry::Radian &radian)#

visionflow::geometry::Ring2f transform_rotate(const visionflow::geometry::Ring2f &geometry, const visionflow::geometry::Radian &radian)#

visionflow::geometry::Polygon2f transform_rotate(const visionflow::geometry::Polygon2f &geometry, const visionflow::geometry::Radian &radian)#

visionflow::geometry::RotateRect2f transform_rotate(const visionflow::geometry::RotateRect2f &geometry, const visionflow::geometry::Radian &radian)#

visionflow::geometry::Ellipse2f transform_rotate(const visionflow::geometry::Ellipse2f &geometry, const visionflow::geometry::Radian &radian)#

visionflow::geometry::Vector2f transform_rotate(const visionflow::geometry::Vector2f &geometry, const visionflow::geometry::Radian &radian)#

visionflow::geometry::Segment2f transform_rotate(const visionflow::geometry::Segment2f &geometry, const visionflow::geometry::Radian &radian)#

visionflow::geometry::MultiPoint2f transform_rotate(const visionflow::geometry::MultiPoint2f &geometry, const visionflow::geometry::Radian &radian)#

visionflow::geometry::MultiPolygon2f transform_rotate(const visionflow::geometry::MultiPolygon2f &geometry, const visionflow::geometry::Radian &radian)#

visionflow::geometry::RotateRect2f transform_rotate(const visionflow::geometry::Rect2f &rect, const visionflow::geometry::Radian &radian)#

group transform_scale

Geometry scale transform.

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

param geometry:

Geometry.

Geometry
Point
LineString
Ring
Polygon
Rect
Ellipse
Vector
Segment
MultiPoint
MultiPolygon

param ratio_x:

Scaling ratio direction-x.

param ratio_y:

Scaling ratio direction-y.

return:

The result is consistent with the input geometry.

param rotate_rect:

RotateRect.

param ratio_x:

Scaling ratio direction-x.

param ratio_y:

Scaling ratio direction-y.

return:

the result is Ring.

Functions

visionflow::geometry::Point2f transform_scale(const visionflow::geometry::Point2f &geometry, float ratio_x, float ratio_y)#

visionflow::geometry::LineString2f transform_scale(const visionflow::geometry::LineString2f &geometry, float ratio_x, float ratio_y)#

visionflow::geometry::Ring2f transform_scale(const visionflow::geometry::Ring2f &geometry, float ratio_x, float ratio_y)#

visionflow::geometry::Polygon2f transform_scale(const visionflow::geometry::Polygon2f &geometry, float ratio_x, float ratio_y)#

visionflow::geometry::Rect2f transform_scale(const visionflow::geometry::Rect2f &geometry, float ratio_x, float ratio_y)#

visionflow::geometry::Vector2f transform_scale(const visionflow::geometry::Vector2f &geometry, float ratio_x, float ratio_y)#

visionflow::geometry::Segment2f transform_scale(const visionflow::geometry::Segment2f &geometry, float ratio_x, float ratio_y)#

visionflow::geometry::MultiPoint2f transform_scale(const visionflow::geometry::MultiPoint2f &geometry, float ratio_x, float ratio_y)#

visionflow::geometry::MultiPolygon2f transform_scale(const visionflow::geometry::MultiPolygon2f &geometry, float ratio_x, float ratio_y)#

visionflow::geometry::Ring2f transform_scale(const visionflow::geometry::RotateRect2f &rotate_rect, float ratio_x, float ratio_y)#

group transform_translate

Geometry translate transform.

param geometry:

Geometry.

Geometry
Point
LineString
Ring
Polygon
Rect
RotateRect
Ellipse
Vector
Segment
MultiPoint
MultiPolygon

param offset_x:

Translation transform direction-x.

param offset_y:

Translation transform direction-y.

return:

The result is consistent with the input geometry.

Functions

visionflow::geometry::Point2f transform_translate(const visionflow::geometry::Point2f &geometry, float offset_x, float offset_y)#

visionflow::geometry::LineString2f transform_translate(const visionflow::geometry::LineString2f &geometry, float offset_x, float offset_y)#

visionflow::geometry::Ring2f transform_translate(const visionflow::geometry::Ring2f &geometry, float offset_x, float offset_y)#

visionflow::geometry::Polygon2f transform_translate(const visionflow::geometry::Polygon2f &geometry, float offset_x, float offset_y)#

visionflow::geometry::Rect2f transform_translate(const visionflow::geometry::Rect2f &geometry, float offset_x, float offset_y)#

visionflow::geometry::RotateRect2f transform_translate(const visionflow::geometry::RotateRect2f &geometry, float offset_x, float offset_y)#

visionflow::geometry::Ellipse2f transform_translate(const visionflow::geometry::Ellipse2f &geometry, float offset_x, float offset_y)#

visionflow::geometry::Vector2f transform_translate(const visionflow::geometry::Vector2f &vector, float offset_x, float offset_y)#

visionflow::geometry::Segment2f transform_translate(const visionflow::geometry::Segment2f &geometry, float offset_x, float offset_y)#

visionflow::geometry::MultiPoint2f transform_translate(const visionflow::geometry::MultiPoint2f &geometry, float offset_x, float offset_y)#

visionflow::geometry::MultiPolygon2f transform_translate(const visionflow::geometry::MultiPolygon2f &geometry, float offset_x, float offset_y)#

group transform

Geometry transform.

transform(geometry, step1), transform(geometry, step2) -> transform(geometry, step2 * step1).

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

param geometry:

Geometry.

Geometry
Point
LineString
Ring
Polygon
Vector
Segment
MultiPoint
MultiPolygon

param mat:

Transformation matrix.

return:

the result is consistent with the input geometry.

param rect:

Rect.

param mat:

Transformation matrix.

return:

the result is Ring.

param rotate_rect:

RotateRect.

param mat:

Transformation matrix.

return:

the result is Ring.

Functions

visionflow::geometry::Point2f transform(const visionflow::geometry::Point2f &geometry, const visionflow::geometry::Matrix3f &mat)#

visionflow::geometry::LineString2f transform(const visionflow::geometry::LineString2f &geometry, const visionflow::geometry::Matrix3f &mat)#

visionflow::geometry::Ring2f transform(const visionflow::geometry::Ring2f &geometry, const visionflow::geometry::Matrix3f &mat)#

visionflow::geometry::Polygon2f transform(const visionflow::geometry::Polygon2f &geometry, const visionflow::geometry::Matrix3f &mat)#

visionflow::geometry::Vector2f transform(const visionflow::geometry::Vector2f &vector, const visionflow::geometry::Matrix3f &mat)#

visionflow::geometry::Segment2f transform(const visionflow::geometry::Segment2f &geometry, const visionflow::geometry::Matrix3f &mat)#

visionflow::geometry::MultiPoint2f transform(const visionflow::geometry::MultiPoint2f &geometry, const visionflow::geometry::Matrix3f &mat)#

visionflow::geometry::MultiPolygon2f transform(const visionflow::geometry::MultiPolygon2f &geometry, const visionflow::geometry::Matrix3f &mat)#

visionflow::geometry::Ring2f transform(const visionflow::geometry::Rect2f &rect, const visionflow::geometry::Matrix3f &mat)#

visionflow::geometry::Ring2f transform(const visionflow::geometry::RotateRect2f &rotate_rect, const visionflow::geometry::Matrix3f &mat)#

Matrix3f visionflow::geometry::get_affine_transform(const std::vector<Point2f> &src, const std::vector<Point2f> &dst)#

Calculate an affine transform from three pairs of the corresponding points.

If the number of point pairs is less than 3, an visionflow::excepts::InvalidArgument will be thrown.

Parameters:

src – Coordinate of triangle vertices in the source image.
dst – Coordinate of the corresponding triangle vertices in the destination image.

Throws:

visionflow::excepts::InvalidArgument – if the number of point pairs is less than requirement.

Returns:

transformation matrix.

Matrix3f visionflow::geometry::get_perspective_transform(const std::vector<Point2f> &src, const std::vector<Point2f> &dst)#

Calculate a perspective transform from four pairs of the corresponding points.

If the number of point pairs is less than 4, an visionflow::excepts::InvalidArgument will be thrown.

Parameters:

src – Coordinate of quadrangle vertices in the source image.
dst – Coordinate of the corresponding quadrangle vertices in the destination image.

Throws:

visionflow::excepts::InvalidArgument – if the number of point pairs is less than requirement.

Returns:

transformation matrix.

Matrix3f visionflow::geometry::get_inverse_transform(const Matrix3f &mat)#

Get inverse transform matrix.

Parameters:: mat – Source matrix.
Returns:: inverse transform matrix.

Matrix3f visionflow::geometry::get_rotate_transform(const Radian &theta)#

Get rotate transform matrix.

Follow Radian definition direction, and the matrix is:

\[\begin{split} \begin{bmatrix} cos\theta & -sin\theta & 0 \\ sin\theta & cos\theta & 0 \\ 0 & 0 & 1 \end{bmatrix} \end{split}\]

Parameters:: theta – Rotation radian.
Returns:: Matrix3f rotate transform matrix.

Matrix3f visionflow::geometry::get_rotate_transform(const Point2f &center, const Radian &theta)#

Get the transformation matrix rotated around a given center.

Let the center pos be \( (x_c, y_c) \), then the transform matrix is:

\[\begin{split} \begin{bmatrix} cos\theta & -sin\theta & (1 - cos\theta) x_c + sin\theta * y_c \\ sin\theta & cos\theta & -sin\theta * x_c + (1 - cos\theta) y_c \\ 0 & 0 & 1 \end{bmatrix} \end{split}\]

Parameters:

center – The rotate center.
theta – Rotation radian.

Returns:

Matrix3f the rotate transform matrix.

Matrix3f visionflow::geometry::get_scale_transform(float s_x, float s_y)#

Get scale transform matrix.

The matrix is:

\[\begin{split} \begin{bmatrix} s_x & 0 & 0 \\ 0 & s_y & 0 \\ 0 & 0 & 1 \end{bmatrix} \end{split}\]

Parameters:

s_x – Scaling ratio direction-x.
s_y – Scaling ratio direction-y.

Returns:

scale transform matrix.

Matrix3f visionflow::geometry::get_scale_transform(const Point2f &center, float s_x, float s_y)#

Get the transformation matrix scaled to the given point.

Let the center pos be \( (x_c, y_c) \), then the transform matrix is:

\[\begin{split} \begin{bmatrix} s_x & 0 & (1 - s_x) x_c \\ 1 & s_y & (1 - s_y) y_c \\ 0 & 0 & 1 \end{bmatrix} \end{split}\]

Parameters:

center – The scale center.
s_x – Scaling ratio direction-x.
s_y – Scaling ratio direction-y.

Returns:

Matrix3f scale transform matrix.

Matrix3f visionflow::geometry::get_translate_transform(float offset_x, float offset_y)#

Get translate transform matrix.

Parameters:

offset_x – Translation transform direction-x.
offset_y – Translation transform direction-y.

Returns:

translate transform matrix

Matrix3f visionflow::geometry::get_flip_transform(const Line2f &flip_axis)#

Get the mirror flip transform matrix.

Let the symmetrical axis for mirror flip be \( ax + by + c = 0 \), then the transform matrix is:

\[\begin{split} \begin{bmatrix} (b^2 - a^2)/(a^2+b^2) & -2ab/(a^2+b^2) & -2ac/(a^2+b^2) \\ -2ab/(a^2+b^2) & (a^2 - b^2)/(a^2+b^2) & -2bc/(a^2+b^2) \\ 0 & 0 & 1 \end{bmatrix} \end{split}\]

Parameters:: flip_axis – The symmetrical axis for mirror flip.
Returns:: Matrix3f flip transform matrix

using visionflow::geometry::Rect2f::Size = Size2f #

using visionflow::geometry::Rect2i::Size = Size2i #

using visionflow::geometry::MultiPoint2f::Point = Point2f #

using visionflow::geometry::MultiPoint2i::Point = Point2i #

using visionflow::geometry::MultiPolygon2f::Polygon = Polygon2f #

using visionflow::geometry::MultiPolygon2i::Polygon = Polygon2i #