VKVG_IDENTITY_MATRIX vkvg_matrix_get_scale vkvg_matrix_init vkvg_matrix_init_identity vkvg_matrix_init_rotate vkvg_matrix_init_scale vkvg_matrix_init_translate vkvg_matrix_invert vkvg_matrix_multiply vkvg_matrix_rotate vkvg_matrix_scale vkvg_matrix_transform_distance vkvg_matrix_transform_point vkvg_matrix_translate

vkvg_matrix_rotate() void vkvg_matrix_rotate ( vkvg_matrix_t *  matrix, float  radians  ) Apply a rotation of radians on the supplied matrix. The effect of the new transformation is to first rotate the coordinates by radians, then apply the original transformation to the coordinates. Parameters matrix a valid vkvg_matrix_t pointer on which the rotation will be applied 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.