I'm working with a model that requires me to constrain to projections of an ellipse to faces in different planes.
I've confirmed with some Googling that the projections are ellipses as well. However, FreeCAD projects these as B-Splines. This is in Sketcher, as external geometry. That's not all that helpful.
I can easily make an ellipse as construction geometry on the Sketcher plane. I have the end points; I just need third point on the original geometry: e.g. the end point of the minor axis would be a good addition. (I may need the center as well, but that problem hasn't come up in my cases yet.)
Question: What is a good way to allow me to get the minor axis end point on my Sketcher plane as external geometry?
The best I can come up with is: break up the original ellipse segments into two segments each. It's just going to be unnecessarily cumbersome all over my parts.
An example demonstrating the issue is attached.
Overall Part:
External Geometry as spline:
My ellipse construction geometry to work around: I need that third point:
OS: macOS 10.14
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.16117 (Git)
Build type: Release
Branch: (HEAD detached at 0.18.2)
Hash: dbb4cc6415bac848a294f03b80f65e888d531742
Python version: 3.6.7
Qt version: 5.6.2
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/UnitedStates (en_US)