Ticket #4018 - Projecting an ellipse on an inclined plane

[chrisb]

This will have to wait until tomorrow, then I will have a look.

[chrisb]

You can try this file:
ellipseprojection.FCStd
1) Create a datum point
2) Select "DatumPlane Offset Incline" as a reference
3) Select "DatumLine Ridge" as a second reference
4) Try "Proximity Point 1" as Attachment mode.

It doesn't work here either. Proximity point 1 or 2 show in report view:

Code: Select all

PositionBySupport: AttachEngine::getInertialPropsOfShape: infinite shape provided
PositionBySupport: AttachEnginePoint::calculateAttachedPlacement: proximity calculation failed.

OS: macOS High Sierra (10.13)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.16933 (Git)
Build type: Release
Branch: master
Hash: 4494d384a6b7e183dd4ae12baadfcf6972039c45
Python version: 3.7.3
Qt version: 5.9.7
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/Germany (en_DE)

[GlouGlou]

it's strange, I've tried again the last evening and never succeed to use the proximity attachment with a line and a plane... sorry I can't understand.

[chrisb]

I edited my post above and hope it's clearer now: It didn't succeed here either.

[berka]

Thank you @chrisb and @GlouGlou.
I reported the bug #4018 at:
https://www.freecadweb.org/tracker/view.php?id=4018

[Kunda1]

Updated thread title with the ticket number.
OP, thanks for filling out a very thorough bug report. Cheers!