- void set_matrix(AffineMatrix *matrix);
-// set_matrix:
-// in x1,y1 - x2,y1 out x1,y1 - x2,y2 clockwise
-// | | | |
-// x1,y2 - x2,y2 x4,y4 - x3,y3
-//
- void set_matrix( double in_x1, double in_y1, double in_x2, double in_y2,
- double out_x1, double out_y1, double out_x2, double out_y2,
- double out_x3, double out_y3, double out_x4, double out_y4);