How to get this shape fixed?

Matthias K.'s picture
Matthias K.
Fri, 07/22/2022 - 17:57
Forums: 
Modeling Data and Algorithms

Hi everyone, I wonder how to get an erroneous face fixed. The face is part of a shell where a fillet was generated. Use this DRAW script to reproduce: 


restore shape.brep s
explode s E
blend r s 2 s_5
explode r F
checkshape r_1
vdisplay r_1
vsetdispmode 1

Does anyone has some ideas? Thank you! Best regards, Matthias!

Attachments: 
Binary Data shape.brep
Image icon badshape.png
Thomas Anderson's picture
Thomas Anderson
Sun, 07/24/2022 - 16:19

I believe your input shape is a non-manifold shell and fillets probably don't support that condition.

Matthias K.'s picture
Matthias K.
Mon, 07/25/2022 - 10:03

Thanks Thomas!
The shape could be non-manifold, I didn't check this explicitly. I attached a slightly different shape being identical in terms of topology and it's valid after the fillet generation. In fact, I did not encounter this problem before while processing hundreds of this shapes.

However, I wonder how the resulting shape or just the face r_1 can be fixed?

Attachments: 
Binary Data shape_okay.brep