Is possible to transform arc to flat with the same linear dimensions?
here what exactly I want.
https://drive.google.com/drive/folders/1uZeM-VaSROvC1akP-QMVFiJRIlRAYNQ-
Hi, not that I know of.
It looks more like bending but that is not entirely correct.
The middle section shows us 2 parallel horizontal lines, 205.3 long in total.
If we bend those uniformly then that would end up as 2 concentric arcs.
Not with 2 arcs, 205.29138224 long with different centers as in the bottom section.
Or the two fully different arcs in the top section.
Same for the central shape from top to bottom:
220.7 or 210.45683039 or 220.69369873 long.
Not the same length as per your note.
So, some stretching and/or compression is involved.
Otherwise those endpoints can’t match in all 3 sections.
Also note that the ‘thickness’ is different for all 3 sections.
For simple shapes one can probably write a custom script that rolls or unrolls such flat shapes but for a shape with a certain thickness (in top view) that is far more complex.
To flatten an arc simply draw a straight line that is sweep angle (in rad) time radius long.
Or use the inverse identity to roll a line onto a certain radius or to a certain sweep angle.
QCAD supports expressions (without an ‘=’) in all to most property or option fields.
Note that properties are displayed as rounded.
Regards
CVH