Posted by sand1024 on Feb 06, 2025; 1:00pm
URL: https://forum.librecad.org/New-feature-idea-perspective-transform-tp5726356p5726391.html

Just realized that there might be another specific application of this - correction of distortions of the image.

If the image is used as a background for creation of entities on top of it, it's important to remove such distortions (and ensure that angles and distances that are picked form the image are correct).  

For this one, something like https://doc.qt.io/qt-6/qtransform.html#quadToQuad should work...