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arc - Man Page

Draws a circular arc. Allegro game programming library.


#include <allegro.h>

void arc(BITMAP *bmp, int x, y, fixed ang1, ang2, int r, int color);


Draws a circular arc with centre x, y and radius r, in an anticlockwise  direction starting from the angle a1 and ending when it reaches a2. These  values are specified in 16.16 fixed point format, with 256 equal to a  full circle, 64 a right angle, etc. Zero is to the right of the centre  point, and larger values rotate anticlockwise from there. Example:

   /* Draw a black arc from 4 to 1 o'clock. */
   arc(screen, SCREEN_W/2, SCREEN_H/2,
       itofix(-21), itofix(43), 50, makecol(0, 0, 0));

See Also

circle(3), ellipse(3), drawing_mode(3), makecol(3)

Referenced By

circle(3), do_arc(3), ellipse(3).

version 4.4.3 Allegro manual