I have seen Bresenham's in graphics libraries written for the PC. There are two PC graphics libraries (public domain types) in C that might be worth a look : Allegro for DJGPP Xlib for DOS - don't confuse with a UNIX thing of the same name Then there is at least one FAQ, probably computer graphics or 3D FAQ out there. I have definitely seen at least one FAQ with very thorough referenced info about all kinds of graphics algorithms, including Bresenham's. Good luck. On Mon, 17 May 1999, Nihat DAGDEMIR wrote: > Sorry For Happy99 Virus. > > and so again my problem. > > I want to use Bresenham's Line Algorithm with Pic 16c77. > If you have c code or another idea to drawing line please help me. > Thank You. >