arc man page on DragonFly

arc man page on DragonFly

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arc(3)				Allegro manual				arc(3)

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. Exam‐
       ple:

	  /* 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)

Allegro				 version 4.4.2				arc(3)

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