NAME

       al_calculate_spline - Allegro 5 API

SYNOPSIS

              #include <allegro5/allegro_primitives.h>

              void al_calculate_spline(float* dest, int stride, float points[8],
                 float thickness, int num_segments)

DESCRIPTION

       Calculates  a  Bézier spline given 4 control points.  If thickness <= 0, then num_segments
       of points are required in the destination,  otherwise  twice  as  many  are  needed.   The
       destination  buffer  should  consist  of  regularly  spaced  (by distance of stride bytes)
       doublets of floats, corresponding to x and y coordinates of the vertices.

       Parameters:

       • dest - The destination buffer

       • stride - Distance (in bytes) between starts of successive pairs of coordinates

       • points - An array of 4 pairs of coordinates of the 4 control points

       • thickness - Thickness of the spline ribbon

       • num_segments - The number of points to calculate

SEE ALSO

       al_draw_spline(3alleg5), al_calculate_arc(3alleg5), al_calculate_ribbon(3alleg5)