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OpenCV
3.4.20
Open Source Computer Vision
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The class represents rotated (i.e. not up-right) rectangles on a plane. More...
#include <opencv2/core/types.hpp>
Public Member Functions | |
RotatedRect () | |
default constructor More... | |
RotatedRect (const Point2f ¢er, const Size2f &size, float angle) | |
RotatedRect (const Point2f &point1, const Point2f &point2, const Point2f &point3) | |
Rect | boundingRect () const |
returns the minimal up-right integer rectangle containing the rotated rectangle More... | |
Rect_< float > | boundingRect2f () const |
returns the minimal (exact) floating point rectangle containing the rotated rectangle, not intended for use with images More... | |
void | points (Point2f pts[]) const |
Public Attributes | |
float | angle |
returns the rotation angle. When the angle is 0, 90, 180, 270 etc., the rectangle becomes an up-right rectangle. More... | |
Point2f | center |
returns the rectangle mass center More... | |
Size2f | size |
returns width and height of the rectangle More... | |
The class represents rotated (i.e. not up-right) rectangles on a plane.
Each rectangle is specified by the center point (mass center), length of each side (represented by Size2f structure) and the rotation angle in degrees.
The sample below demonstrates how to use RotatedRect:
cv::RotatedRect::RotatedRect | ( | ) |
default constructor
full constructor
center | The rectangle mass center. |
size | Width and height of the rectangle. |
angle | The rotation angle in a clockwise direction. When the angle is 0, 90, 180, 270 etc., the rectangle becomes an up-right rectangle. |
cv::RotatedRect::RotatedRect | ( | const Point2f & | point1, |
const Point2f & | point2, | ||
const Point2f & | point3 | ||
) |
Any 3 end points of the RotatedRect. They must be given in order (either clockwise or anticlockwise).
Rect cv::RotatedRect::boundingRect | ( | ) | const |
returns the minimal up-right integer rectangle containing the rotated rectangle
Rect_<float> cv::RotatedRect::boundingRect2f | ( | ) | const |
returns the minimal (exact) floating point rectangle containing the rotated rectangle, not intended for use with images
void cv::RotatedRect::points | ( | Point2f | pts[] | ) | const |
returns 4 vertices of the rectangle
pts | The points array for storing rectangle vertices. The order is bottomLeft, topLeft, topRight, bottomRight. |
float cv::RotatedRect::angle |
returns the rotation angle. When the angle is 0, 90, 180, 270 etc., the rectangle becomes an up-right rectangle.
Point2f cv::RotatedRect::center |
returns the rectangle mass center
Size2f cv::RotatedRect::size |
returns width and height of the rectangle