Is there something lika a "globe" or "sphere" workbench?

[Robomike]

helix ? or ellipse (cylinder cut by one inclined plane)

I mean the dimensions. Like in "Asteroids" back in the days. Everything what left the screen on the right reappeared on the left and vice versa. Or bottom / top. Or both. (Not intended to sketch on a moebius band, not yet. Wait.... )

Michael

[GeneFC]

All workbenches depend the core of FreeCAD for their operations. FreeCAD is essentially 100% based on ordinary 3D Cartesian coordinates. In turn FreeCAD depends heavily on the OCC kernel for geometric calculations. I believe that OCC is ordinary 3D as well.

Therefore it would be more or less impossible to create an ordinary workbench for FreeCAD that was based on a spherical coordinate system.

I worked a lot with spherical coordinates in my career, and I understand the benefits for some applications. However, I do not see any sensible way to convert FreeCAD into a new coordinate system.

It is certainly possible that a workbench could be developed to better address spheres, toroids, etc. But the underlying geometry would need to remain Cartesian. (IMHO)

Gene

[carlopav]

Well, i do not think so. FC Is really modular so you can theoretically plug in some other library instead of OCC that work on non cartesian coordinates for the object definition, and deal with it's COIN cartesian visual representation...
Just pure fantasy at the moment though

[GeneFC]

FC Is really modular so you can theoretically plug in some other library instead of OCC

You need more than one smiley for that comment.

Here ya go.



Gene

[adrianinsaval]

you can theoretically plug in some other library instead of OCC

That's a BIG theoretical, you could, but which library? Who would take up such gigantic task? It would basically be rewriting half of FreeCAD if not more.

[carlopav]

FC Is really modular so you can theoretically plug in some other library instead of OCC

You need more than one smiley for that comment.

Here ya go.



Gene

Ahah, i appreciate It!