QCAD.org Forum

Just seen a video presentation on youtube called "Drawing constraints - parametric drawing tools in CorelCAD".

Please can be added in QCAD this sort of tools ? They are extremely useful and powerful in the same time.

You may want to check out solid egde drafting; its gratis and has fully a developed, scriptable constraints system.

Probably geogebra might be interesting, it can do animations too…