Posted by dellus on Nov 11, 2024; 10:02pm
URL: https://forum.librecad.org/DXF-Import-DImension-scale-tp5725622p5725623.html

When I open the file in a different cad application indeed 21,5 is shown in the dimension. But if I draw a new dimension to the same points it is 43, as this is the true size in the drawing.
It seems the drawing itself has been scaled, which is not the standard way, and the reading of the dimension has been manipulated in a way LibreCAD does not understand. An incompatibility in dxf reading.

In Options - Current Drawing Preferences - Dimensions - Length Factor you can manipulate the reading. But this applies to all dimensions in a drawing!

LibreCAD does not support use of various scales in one drawing. This may be the origin of the issue.
So a possible solution is to scale down the 2:1 parts of the drawing to 1:1, by factor 0.5.