>>
Oh, what I forgot to mention also is that every version of the this
algorithm was being used for graphics and hand nothing to do with
motion.  Oh course if there is a different alogithm used for motion,
where can I find it?  This seems to simplify the mater a lot.  It there
one for a circle too?
<<

Bresenham's original algorithm WAS for motion.  He was moving an object
above a fixed table, you are trying to move the table.  You have things
above the table like a drill or a router.  He had a pen.  Same thing.

By the way Bresenham developed the algorithm because the traditional
slope/fraction method wasn't fast enough on the limited computer available
to drive the plotter.


********************************************************************
Olin Lathrop, embedded systems consultant in Littleton Massachusetts
(978) 742-9014, olin@embedinc.com, http://www.embedinc.com

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