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do_ellipse(3)                   Allegro manual                   do_ellipse(3)

NAME
       do_ellipse - Calculates all the points in an ellipse. Allegro game
       programming library.

SYNOPSIS
       #include <allegro.h>

       void do_ellipse(BITMAP *bmp, int x, int y, int rx, ry, int d, void
       (*proc)(BITMAP *bmp, int x, int y, int d));

DESCRIPTION
       Calculates all the points in an ellipse around point (x, y) with radius
       rx and ry, calling the supplied function for each one. This will be
       passed a copy of the bmp parameter, the x and y position, and a copy of
       the d parameter, so it is suitable for use with putpixel(). Example:

          void draw_explosion_ring(BITMAP *bmp, int x, int y, int d)
          {
             ...
          }

             do_ellipse(screen, SCREEN_W/2, SCREEN_H/2,
                       SCREEN_H/16, SCREEN_H/32, flame_color,
                       draw_explosion_ring);

SEE ALSO
       do_circle(3), do_arc(3), do_line(3), ellipse(3), ellipsefill(3)

Allegro                          version 4.4.2                   do_ellipse(3)