cairo_matrix_init_rotate

Initialized matrix to a transformation that rotates by radians.

cairo_matrix_init_rotate(matrix, radians)

Arguments

matrix	[cairo_matrix_t *] a #cairo_matrix_t
radians	[double] 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.

Details

Since: 1.0

C function prototype: void cairo_matrix_init_rotate (cairo_matrix_t *matrix, double radians)

See also

Other cairo-matrix: cairo_matrix_init_scale(), cairo_matrix_init_translate(), cairo_matrix_init(), cairo_matrix_invert(), cairo_matrix_multiply(), cairo_matrix_rotate(), cairo_matrix_scale(), cairo_matrix_transform_distance(), cairo_matrix_transform_point(), cairo_matrix_translate()