Man Linux: Main Page and Category List

NAME

       arc - Draws a circular arc. Allegro game programming library.

SYNOPSIS

       #include <allegro.h>

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

DESCRIPTION

       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(3alleg), ellipse(3alleg), drawing_mode(3alleg), makecol(3alleg)