rotateFromVector method
Post-multiplies the matrix by a specified rotation transformation and returns the resulting matrix.
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Syntax
ISVGMatrix retVal = object.rotateFromVector(x, y);
Parameters
- x [in]
-
Type: float
The x-coordinate of a vector (x,y) that determines the rotation angle. This coordinate cannot be zero.
- y [in]
-
Type: float
The y-coordinate of a vector (x,y) that determines the rotation angle. This coordinate cannot be zero.
Standards information
Remarks
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.
See also
Build date: 11/12/2012
