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RotatedRect Class Reference
[Basic structures]
The class represents rotated (i.e. More...
#include <types.hpp>
Public Member Functions | |
| RotatedRect () | |
| various constructors | |
| RotatedRect (const Point2f ¢er, const Size2f &size, float angle) | |
| RotatedRect (const Point2f &point1, const Point2f &point2, const Point2f &point3) | |
| Any 3 end points of the RotatedRect. | |
| void | points (Point2f pts[]) const |
| returns 4 vertices of the rectangle | |
| Rect | boundingRect () const |
| returns the minimal up-right rectangle containing the rotated rectangle | |
Detailed Description
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 cv::Size2f structure) and the rotation angle in degrees.
The sample below demonstrates how to use RotatedRect:
Mat image(200, 200, CV_8UC3, Scalar(0));
RotatedRect rRect = RotatedRect(Point2f(100,100), Size2f(100,50), 30);
Point2f vertices[4];
rRect.points(vertices);
for (int i = 0; i < 4; i++)
line(image, vertices[i], vertices[(i+1)%4], Scalar(0,255,0));
Rect brect = rRect.boundingRect();
rectangle(image, brect, Scalar(255,0,0));
imshow("rectangles", image);
waitKey(0);
- See also:
- CamShift, fitEllipse, minAreaRect, CvBox2D
Definition at line 457 of file types.hpp.
Constructor & Destructor Documentation
| RotatedRect | ( | ) |
various constructors
| RotatedRect | ( | const Point2f & | center, |
| const Size2f & | size, | ||
| float | angle | ||
| ) |
- Parameters:
-
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.
| 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).
Definition at line 5461 of file matrix.cpp.
Member Function Documentation
| Rect boundingRect | ( | ) | const |
returns the minimal up-right rectangle containing the rotated rectangle
Definition at line 5501 of file matrix.cpp.
| void points | ( | Point2f | pts[] ) | const |
returns 4 vertices of the rectangle
- Parameters:
-
pts The points array for storing rectangle vertices.
Definition at line 5485 of file matrix.cpp.
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