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)

                                                         al_calculate_spline(3alleg5) Allegro reference manual()