Function Matrix.rotate
Applies rotation by radians to the transformation in matrix.
The effect of the new transformation is to first rotate the
coordinates by radians, then apply the original transformation
to the coordinates.
Prototype
void rotate(
double radians
);
Parameters
| Name | Description |
|---|
| radians | angle of rotation, in radians. The direction of
rotation is defined such that positive angles rotate in the
direction from the positive X axis toward the positive Y axis.
With the default axis orientation of cairo, positive angles
rotate in a clockwise direction. |
Authors
| Johannes Pfau | cairoD |
| Andrej Mitrovic | cairoD |
| cairo team | cairo |