Subj : Re: fill in a segment of a circle on a graph
To   : comp.programming
From : DarkD
Date : Wed Sep 07 2005 04:46 pm


> Bresenhams algorithm looks like it would work, but I haven't
> figured out the code yet.  Trying to get it to do any segment
> of an arc is taking me a while to figure out.

For a circle it should be pretty easy.
x^2 + y^2 = r^2

It you want 45 degree from the line then you take the line angle add the 45
degree and use basic trig to figure out the max x position, then use formula
above to draw arch over that range of x.

.