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Part: a deflection of 0.0 is not allowed any more for meshing a shape

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wmayer
2021-12-10 13:31:40 +01:00
parent 24bfc4f0a2
commit f7ec9787d1
1 changed files with 12 additions and 5 deletions
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17
src/Mod/Part/Gui/ViewProviderExt.cpp
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@@ -971,16 +971,19 @@ void ViewProviderPartExt::updateVisual()
bounds.SetGap(0.0);
Standard_Real xMin, yMin, zMin, xMax, yMax, zMax;
bounds.Get(xMin, yMin, zMin, xMax, yMax, zMax);
Standard_Real deflection = ((xMax-xMin)+(yMax-yMin)+(zMax-zMin))/300.0 *
Deviation.getValue();
Standard_Real deflection = ((xMax-xMin)+(yMax-yMin)+(zMax-zMin))/300.0 * Deviation.getValue();
// Since OCCT 7.6 a value of equal 0 is not allowed any more, this can happen if a single vertex
// should be displayed.
if (deflection < gp::Resolution())
deflection = Precision::Confusion();
// create or use the mesh on the data structure
#if OCC_VERSION_HEX >= 0x060600
Standard_Real AngDeflectionRads = AngularDeflection.getValue() / 180.0 * M_PI;
BRepMesh_IncrementalMesh(cShape,deflection,Standard_False,
AngDeflectionRads,Standard_True);
BRepMesh_IncrementalMesh(cShape, deflection, Standard_False, AngDeflectionRads, Standard_True);
#else
BRepMesh_IncrementalMesh(cShape,deflection);
BRepMesh_IncrementalMesh(cShape, deflection);
#endif
// We must reset the location here because the transformation data
// are set in the placement property
@@ -1291,6 +1294,10 @@ void ViewProviderPartExt::updateVisual()
faceset ->partIndex .finishEditing();
lineset ->coordIndex .finishEditing();
}
catch (const Standard_Failure& e) {
FC_ERR("Cannot compute Inventor representation for the shape of "
<< pcObject->getFullName() << ": " << e.GetMessageString());
}
catch (...) {
FC_ERR("Cannot compute Inventor representation for the shape of " << pcObject->getFullName());
}