Posted by LordOfBikes on Jun 21, 2013; 5:47pm
URL: https://forum.librecad.org/The-drawing-an-elipse-with-four-particular-points-on-the-x-y-aixs-tp5708421p5708423.html

Hi Bob,

can you please specify, which LC version you are using.

I haven't completely understood your issue.

When you draw an ellipse with the points (-100,-20) (100,-20) (0,120) (0,-120) the major axis length is 240, exact on the Y axis. The minor axis will be exact on the X axis and must be longer than 200.
The length of 200 will be on a horizontal line at Y -20 or 20, the maximum width is more than 200 at Y 0.

I have drawn this ellipse in LC 2.0.0rc1 and for me it was OK.

Maybe there is a snapping issue?

@dxli
When exploring this issue I found another tolerance issue.
After setting the 3rd point and moving the mouse down, in -Y direction, LC crashed.
I've fixed this with commit 97048dd3

Armin