al_calculate_ribbon

al_calculate_ribbon(3alleg5)                      al_calculate_ribbon(3alleg5)



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)



Allegro reference manual                          al_calculate_ribbon(3alleg5)