Get rotation quadrangle vertices
| FwStatus | fwiGetRotateQuad | ( | FwiRect srcRoi, double quad[4][2], double angle, double xShift, double yShift ); |
| angle | Specifies the rotation angle in degrees, counterclockwise. | |
| quad[4][2] | Quadrangle vertex coordinates. | |
| srcRoi | Source image ROI. | |
| xShift | Shift value for X axis direction. | |
| yShift | Shift value for Y axis direction. |
This function is used with the GetRotateBound function. It computes the vertex coordinates of the quadrangular destination ROI for the rotate functions.
Quad[0] contains the top right x and y coordinates
Quad[1] contains the top left x and y coordinates
Quad[2] contains the bottom right x and y coordinates
Quad[3] contains the bottom left x and y coordinates