netgen - another meshing problem - app crashes

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1

Hello,

I had a problem doing meshing for simple box geometry step file (attached) after using heal geometry. [The app crashes]

The meshing works fine without healing.

I’m using the latest version of netgen gui [NETGEN-6.2.2105-138-gd7be2c85] from here www.asc.tuwien.ac.at/~mhochsteger/ngsolve/windows/?C=M;O=D

The same file is meshed correctly in older version with and without the use of heal function, specifically NETGEN-6.2.2104-163-gd7a421b9

Steps to reproduce:

  1. load attached step file
  2. use heal geometry
  3. generate mesh

Your help is much appreciated.

Thanks

Attachment: 1b044c0840b9494932aa3abff48889be

2

Hello,

Could you try the latest nightly build? This should be fixed by now.

Best,
Matthias

3

Thanks for your reply.

Ok, I tested again with latest nightly NETGEN-6.2.2105-154-gc63a865e, the app didn’t crash but the tetmeshing failed.

Log

Load STEP geometry file C:/Users/Mostafa/Downloads/FullBeam_V3_SW (1).STEP
Preparing visualization (deflection = 0.01) … done
Building topology tree … done
Starting geometry healing procedure (tolerance: 0.001)

  • repairing faces

  • fixing small edges

  • fixing spot and strip faces

  • sewing faces

  • making solids

Compounds : 0 (0)
Composite solids: 0 (0)
Solids : 1 (1)
Shells : 1 (1)
Wires : 6 (6)
Faces : 6 (6)
Edges : 12 (12)
Vertices : 8 (8)

Totol surface area : 1.68e+06 (1.68e+06)

Preparing visualization (deflection = 0.01) … done
Building topology tree … done
Face 1 / 6 (parameter space projection)
Face 2 / 6 (parameter space projection)
Face 3 / 6 (parameter space projection)
Face 4 / 6 (parameter space projection)
Face 5 / 6 (parameter space projection)
Face 6 / 6 (parameter space projection)
Delaunay meshing
Delaunay meshing
start tetmeshing
start tetmeshing
start tetmeshing
start tetmeshing
start tetmeshing
start tetmeshing
start tetmeshing
start tetmeshing
start tetmeshing
start tetmeshing
Stop meshing since too many attempts