to_affine
Description:
public void to_affine (out float out_scale_x, out float out_scale_y, out float out_dx, out float out_dy)
Converts a transform to 2D affine transformation factors.
To recreate an equivalent transform from the factors returned by this function, use
gsk_transform_scale ( gsk_transform_translate ( NULL, &GRAPHENE_POINT_T (dx, dy)), sx, sy)
this must be a 2D affine transformation. If you are not sure, use
get_category >= GSK_TRANSFORM_CATEGORY_2D_AFFINE
to check.
Parameters:
| this |
a transform |
| out_scale_x |
return location for the scale factor in the x direction |
| out_scale_y |
return location for the scale factor in the y direction |
| out_dx |
return location for the translation in the x direction |
| out_dy |
return location for the translation in the y direction |