Re: [CAD_CAM_EDM_DRO] hi

Drew Rogge wrote:

> Semih,
>
> I'm not sure what CNC controllers use for circle generation but
> you might try doing a web search on Bresenham's circle drawing
> algorithm. This used a lot in computer graphics. You'll probably
> also find that you may need more input than just x1,y1 and x2,y2.
> Even if these points are the beginning and end of a quarter segment
> of a circle, there are two circles which share those points; one
> whose center is at x1,y2 and the other at x2,y1. This is one
> of the reasons g-codes allow you to specify if the travel along
> the circle is in the clockwise or counter clockwise direction.

Bresenham's algorithms are more oriented toward dot matrix drawings
of circles and lines. The DA (Differential Analyzer) is more oriented
for real numbers and continuous paths from a starting point to an
end point. You should also be able to find algorithms if you search
under DA, circle generating, etc.

Jon