Curved Shapes: normals reversed and Links go out of scope

[drmacro]

Not sure why either of these happen.

Code: Select all

Part::FeaturePython / CurvedArray: Links go out of the allowed scope

I can see from the dependency graph that the curved array IS outside the Body. But it does not throw the warning when the array is made, only after subsequent operations (like changing the Solid or Surface property to true).

And why are the normals inverted?

CurvedArray_revnormals.png (79.13 KiB) Viewed 277 times

The file is just a bit big, so:
https://github.com/macdroid53/MyShares/ ... ng-1.FCStd

[Vincent B]

For inverted face, I saw that too:
https://forum.freecadweb.org/viewtopic.php?f=3&t=48305
For the scope allowed issue, it's because you're using sketches from a body. It's better to keep your sketches inside a group.
Unfortunately the surface feature doesn't work here.

[drmacro]

For inverted face, I saw that too:
https://forum.freecadweb.org/viewtopic.php?f=3&t=48305
For the scope allowed issue, it's because you're using sketches from a body. It's better to keep your sketches inside a group.
Unfortunately the surface feature doesn't work here.

I've learned that the normal of the shape (in this case the wing cross section) effects how things are created.

If I use the Draft Flip Dimension or Part Reverse Shapes before the operation then the resulting surface or solid will have the normals facing outward.

Note: the same effect can be had by making the guide lines run from negative to the face (rather than as done in the example positive from the shape).