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Re: Isometric Circles

Posted by dxli on Mar 12, 2015; 4:13pm
URL: https://forum.librecad.org/Isometric-Circles-tp5711165p5711182.html

Yes, you are correct.

The previous algorithm does not try to work out a general solution, but chooses the middle points as tangential points to define the inscribed.

We can make this behavior robust, and user can choose to accept this ellipse or specify a tangential point.
Mike Hayes wrote
So I'm guessing the code behind the tool is already doing something extra to create a unique solution. Perhaps it is making the ellipse touch the midpoints of the four selected lines?

Mike