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NURBS failure on simple union of cube and cylinder #1268

@blinkenlight

Description

@blinkenlight

System information

  • SolveSpace version: 3.1~d6e1b230
  • Operating system: Windows 7 x64

Expected behavior

No naked edges

Actual behavior

Naked edges produced

Additional information

As you can see, this is an exceedingly simple object consisting of a same-sized cube and cylinder extruded from the same plane in different directions - and it breaks the mesh. Interestingly enough, only on two of the four facets involved though. And of course the issue goes away with restricting to triangles - but I could find literally no other way to avoid the issue, short of actually changing the dimensions of one of the objects so they no longer meet tangentially; but that's hardly a proper solution, is it...

Geometry Error 1

Geometry Error 1.zip

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