Flatten a face

[bennn]

my bad about the import, I guess I had a session going on....

Here's an updated version.

[Vincent B]

Your macro seems work pretty well. But how to get the hole?

[UR_]

No problems while using MeshDesignWB

FreeCAD 0.18-000092.png (56.47 KiB) Viewed 2353 times

TestUnfold_ur.FCStd

(496.23 KiB) Downloaded 77 times

used version (py3qt5!!):
OS: Windows 10
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.15109 (Git)
Build type: Release
Branch: master
Hash: f898eafd64f88902ea1916b01303705b3baa2c46
Python version: 3.6.6
Qt version: 5.6.2
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: German/Germany (de_DE)

[UR_]

Even no problem, if you decide to become more wild at heart

FreeCAD 0.18-000093.png (70.55 KiB) Viewed 2345 times

TestUnfold_ur_2.FCStd

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[_taras_]

To UR_
Please show the macro operation step by step. For example, my file.

[UR_]

For example, my file.

I'm not sure if i understand correctly, but your part looks like a plain piece of sheetmetal with a thickness of 10 mm
Nothing to unwrap.

FreeCAD 0.18-000095.png (7.43 KiB) Viewed 2312 times

For clarification:
Unwrapping works with faces, not with solids (you meshed a solid instead)
So you have to create a midplane first for unwrapping afterwards
Please ensure, this menu item is available from MeshDesignWB (availability depends on installed build of FreeCAD)

FreeCAD-000096.png (2.89 KiB) Viewed 2312 times

[jcoppola]

Thanks for sharing this. I need to do this for compound curves. Doing non-conformal mapping preserving local distances instead of angles, i see no reason why this methodology could not flatten a surface on both u and v.