Post-multiplies the matrix by a specified rotation transformation and returns the resulting matrix.
ISVGMatrix retVal = object.rotateFromVector(x, y);
- x [in]
The x-coordinate of a vector (x,y) that determines the rotation angle. This coordinate cannot be zero.
- y [in]
The y-coordinate of a vector (x,y) that determines the rotation angle. This coordinate cannot be zero.
The rotation angle is determined by taking (+/-)arctan(y/x). The direction of the vector (x,y) determines whether the positive or negative angle value is used.
Post-multiplies means that other matrix operations are performed before this operation.
Build date: 11/17/2013