Posted by dxli on Jun 14, 2013; 5:49pm
URL: https://forum.librecad.org/Bug-rs-actiondrawellipsecenter3point-tp5708194p5708352.html

I still get a crash:

0, start LibreCAD with empty drawing;
1, start drawing ellipse with center and 3 points;
2, select only "snap by grid" in snap toolbar;
3, select center a center at: 100, 100;
4, select the first point at @100, 10;
5, move mouse point to make snap point for the second point at @80, 10;

results:

LibreCAD crashes.

LordOfBikes wrote

Maybe you are right,
you can try this
    if( (l1.isValid()==false || l2.isValid()==false ) ) {
or this
    if( l1.isValid()==false || l2.isValid()==false ) {

If this doesn't help, I must have a look at the source file myself.

Armin