Tue, 07/26/2022 - 20:27
Forums:
Hi,
Please test with the attached STEP file. BRepMesh_IncrementalMesh gets stuck with the following parameter setup.
BRepMesh_IncrementalMesh bMesh(shape, 0.5, false, 0.2, true);
Here, angular deflection under 0.2 always makes it stuck. It might be running but taking forever due to the (nearly) infinite number of meshes.
Is there a guideline to set up the feasible linear and angular deflection combination, or for each?
I use the angular deflection between 0.2 ~ 0.8. I calculate the linear deflection by using the function below.
double GetDeflection(const TopoDS_Shape& shape)
{
Bnd_Box bndBox = ComputeBoundingBox(shape);
bndBox = bndBox.FinitePart();
gp_Pnt minPnt = bndBox.CornerMin();
gp_Pnt maxPnt = bndBox.CornerMax();
double deviationCoefficient = 0.001;
double deflection = Prs3d::GetDeflection(Graphic3d_Vec3d(minPnt.X(), minPnt.Y(), minPnt.Z()), Graphic3d_Vec3d(maxPnt.X(), maxPnt.Y(), maxPnt.Z()), deviationCoefficient);
return Max(deflection, Precision::Confusion());
}
Thank you!
Attachments:
Tue, 07/26/2022 - 23:31
I was able to mesh your shape using parameters deflection 0.5, angular 0.5. With angular 0.3 it is also successful. With angular 0.2 it hangs.
You are welcome to report a bug in the bug tracker.
Sat, 07/30/2022 - 16:16
Thanks for the reply.
I've just reported a bug in the tracker.
https://tracker.dev.opencascade.org/view.php?id=33082