NAME

       al_calculate_ribbon - Allegro 5 API

SYNOPSIS

              #include <allegro5/allegro_primitives.h>

              void al_calculate_ribbon(float* dest, int dest_stride, const float *points,
                 int points_stride, float thickness, int num_segments)

DESCRIPTION

       Calculates  a  ribbon given an array of points.  The ribbon will go through all of the passed points.  If
       thickness <= 0, then num_segments of points are required in the destination buffer,  otherwise  twice  as
       many  are  needed.   The destination and the points buffer should consist of regularly spaced doublets of
       floats, corresponding to x and y coordinates of the vertices.

       Parameters:

       • dest - Pointer to the destination buffer

       • dest_stride - Distance (in bytes) between starts of successive pairs of coordinates in the  destination
         buffer

       • points - An array of pairs of coordinates for each point

       • points_stride  -  Distance  (in  bytes) between starts of successive pairs of coordinates in the points
         buffer

       • thickness - Thickness of the spline ribbon

       • num_segments - The number of points to calculate

SEE ALSO

       al_draw_ribbon(3alleg5), al_calculate_arc(3alleg5), al_calculate_spline(3alleg5)