my stl surface is seen as just a line
Hi,
I have created with salome a STL simple file for a rectangular elbow: --------------------------------------------------------------------------------- solid elbow facet normal -1.000000e+00 -0.000000e+00 -0.000000e+00 outer loop vertex 0.000000e+00 6.000000e+00 1.500000e+00 vertex 0.000000e+00 6.000000e+00 -1.500000e+00 vertex 0.000000e+00 0.000000e+00 -1.500000e+00 endloop endfacet facet normal -1.000000e+00 -0.000000e+00 0.000000e+00 outer loop vertex 0.000000e+00 6.000000e+00 1.500000e+00 vertex 0.000000e+00 0.000000e+00 -1.500000e+00 vertex 0.000000e+00 0.000000e+00 1.500000e+00 endloop endfacet facet normal 0.000000e+00 -1.000000e+00 0.000000e+00 outer loop vertex 6.000000e+00 0.000000e+00 1.500000e+00 vertex 9.000000e+00 0.000000e+00 -1.500000e+00 vertex 9.000000e+00 0.000000e+00 1.500000e+00 endloop endfacet facet normal 0.000000e+00 -1.000000e+00 0.000000e+00 outer loop vertex 0.000000e+00 0.000000e+00 -1.500000e+00 vertex 9.000000e+00 0.000000e+00 -1.500000e+00 vertex 4.500000e+00 0.000000e+00 0.000000e+00 endloop endfacet facet normal 0.000000e+00 -1.000000e+00 0.000000e+00 outer loop vertex 0.000000e+00 0.000000e+00 1.500000e+00 vertex 0.000000e+00 0.000000e+00 -1.500000e+00 vertex 4.500000e+00 0.000000e+00 0.000000e+00 endloop endfacet facet normal -0.000000e+00 -1.000000e+00 -0.000000e+00 outer loop vertex 6.000000e+00 0.000000e+00 1.500000e+00 vertex 0.000000e+00 0.000000e+00 1.500000e+00 vertex 4.500000e+00 0.000000e+00 0.000000e+00 endloop endfacet facet normal -0.000000e+00 -1.000000e+00 0.000000e+00 outer loop vertex 9.000000e+00 0.000000e+00 -1.500000e+00 vertex 6.000000e+00 0.000000e+00 1.500000e+00 vertex 4.500000e+00 0.000000e+00 0.000000e+00 endloop endfacet facet normal -0.000000e+00 0.000000e+00 1.000000e+00 outer loop vertex 6.000000e+00 6.000000e+00 1.500000e+00 vertex 0.000000e+00 0.000000e+00 1.500000e+00 vertex 6.000000e+00 0.000000e+00 1.500000e+00 endloop endfacet facet normal 0.000000e+00 0.000000e+00 1.000000e+00 outer loop vertex 6.000000e+00 6.000000e+00 1.500000e+00 vertex 0.000000e+00 6.000000e+00 1.500000e+00 vertex 0.000000e+00 0.000000e+00 1.500000e+00 endloop endfacet facet normal 0.000000e+00 1.000000e+00 0.000000e+00 outer loop vertex 9.000000e+00 6.000000e+00 1.500000e+00 vertex 9.000000e+00 6.000000e+00 -1.500000e+00 vertex 6.000000e+00 6.000000e+00 1.500000e+00 endloop endfacet facet normal 0.000000e+00 1.000000e+00 0.000000e+00 outer loop vertex 4.500000e+00 6.000000e+00 0.000000e+00 vertex 9.000000e+00 6.000000e+00 -1.500000e+00 vertex 0.000000e+00 6.000000e+00 -1.500000e+00 endloop endfacet facet normal 0.000000e+00 1.000000e+00 -0.000000e+00 outer loop vertex 4.500000e+00 6.000000e+00 0.000000e+00 vertex 0.000000e+00 6.000000e+00 -1.500000e+00 vertex 0.000000e+00 6.000000e+00 1.500000e+00 endloop endfacet facet normal 0.000000e+00 1.000000e+00 -0.000000e+00 outer loop vertex 4.500000e+00 6.000000e+00 0.000000e+00 vertex 0.000000e+00 6.000000e+00 1.500000e+00 vertex 6.000000e+00 6.000000e+00 1.500000e+00 endloop endfacet facet normal -0.000000e+00 1.000000e+00 0.000000e+00 outer loop vertex 4.500000e+00 6.000000e+00 0.000000e+00 vertex 6.000000e+00 6.000000e+00 1.500000e+00 vertex 9.000000e+00 6.000000e+00 -1.500000e+00 endloop endfacet facet normal 0.000000e+00 0.000000e+00 -1.000000e+00 outer loop vertex 0.000000e+00 0.000000e+00 -1.500000e+00 vertex 0.000000e+00 6.000000e+00 -1.500000e+00 vertex 9.000000e+00 0.000000e+00 -1.500000e+00 endloop endfacet facet normal 0.000000e+00 0.000000e+00 -1.000000e+00 outer loop vertex 9.000000e+00 0.000000e+00 -1.500000e+00 vertex 0.000000e+00 6.000000e+00 -1.500000e+00 vertex 9.000000e+00 6.000000e+00 -1.500000e+00 endloop endfacet facet normal 1.000000e+00 0.000000e+00 0.000000e+00 outer loop vertex 9.000000e+00 0.000000e+00 -1.500000e+00 vertex 9.000000e+00 6.000000e+00 -1.500000e+00 vertex 9.000000e+00 6.000000e+00 1.500000e+00 endloop endfacet facet normal 1.000000e+00 -0.000000e+00 0.000000e+00 outer loop vertex 9.000000e+00 0.000000e+00 1.500000e+00 vertex 9.000000e+00 0.000000e+00 -1.500000e+00 vertex 9.000000e+00 6.000000e+00 1.500000e+00 endloop endfacet facet normal 0.000000e+00 -1.000000e+00 0.000000e+00 outer loop vertex 6.000000e+00 0.000000e+00 1.500000e+00 vertex 9.000000e+00 0.000000e+00 1.500000e+00 vertex 6.000000e+00 0.000000e+00 7.500000e+00 endloop endfacet facet normal 0.000000e+00 -1.000000e+00 0.000000e+00 outer loop vertex 6.000000e+00 0.000000e+00 7.500000e+00 vertex 9.000000e+00 0.000000e+00 1.500000e+00 vertex 9.000000e+00 0.000000e+00 7.500000e+00 endloop endfacet facet normal -1.000000e+00 0.000000e+00 0.000000e+00 outer loop vertex 6.000000e+00 6.000000e+00 1.500000e+00 vertex 6.000000e+00 0.000000e+00 1.500000e+00 vertex 6.000000e+00 0.000000e+00 7.500000e+00 endloop endfacet facet normal -1.000000e+00 -0.000000e+00 -0.000000e+00 outer loop vertex 6.000000e+00 6.000000e+00 7.500000e+00 vertex 6.000000e+00 6.000000e+00 1.500000e+00 vertex 6.000000e+00 0.000000e+00 7.500000e+00 endloop endfacet facet normal 0.000000e+00 1.000000e+00 0.000000e+00 outer loop vertex 6.000000e+00 6.000000e+00 7.500000e+00 vertex 9.000000e+00 6.000000e+00 1.500000e+00 vertex 6.000000e+00 6.000000e+00 1.500000e+00 endloop endfacet facet normal 0.000000e+00 1.000000e+00 0.000000e+00 outer loop vertex 9.000000e+00 6.000000e+00 7.500000e+00 vertex 9.000000e+00 6.000000e+00 1.500000e+00 vertex 6.000000e+00 6.000000e+00 7.500000e+00 endloop endfacet facet normal 1.000000e+00 -0.000000e+00 0.000000e+00 outer loop vertex 9.000000e+00 0.000000e+00 7.500000e+00 vertex 9.000000e+00 0.000000e+00 1.500000e+00 vertex 9.000000e+00 6.000000e+00 1.500000e+00 endloop endfacet facet normal 1.000000e+00 -0.000000e+00 0.000000e+00 outer loop vertex 9.000000e+00 0.000000e+00 7.500000e+00 vertex 9.000000e+00 6.000000e+00 1.500000e+00 vertex 9.000000e+00 6.000000e+00 7.500000e+00 endloop endfacet facet normal -0.000000e+00 0.000000e+00 1.000000e+00 outer loop vertex 6.000000e+00 6.000000e+00 7.500000e+00 vertex 6.000000e+00 0.000000e+00 7.500000e+00 vertex 9.000000e+00 0.000000e+00 7.500000e+00 endloop endfacet facet normal 0.000000e+00 0.000000e+00 1.000000e+00 outer loop vertex 9.000000e+00 6.000000e+00 7.500000e+00 vertex 6.000000e+00 6.000000e+00 7.500000e+00 vertex 9.000000e+00 0.000000e+00 7.500000e+00 endloop endfacet endsolid elbow ------------------------------------------------------------------------- The problem is that paraview sees this STL as just a line in the x-direction. Also when I want to mesh it with snappyHexMesh, I am not able to put the internal point inside the mesh, I guess that because the same problem. Maybe has anybody encountered this strange behaviour before and can help me? Thank you. Robert |
news: if I export it as binary STL, problem with paraview dissapears, but with the one with snappyHexMesh still remains:
Point (3.25 3.25 0.25) is not inside the mesh or on a face or edge. Bounding box of the mesh:(0 0 -1.5) (9 6 7.5) From function refinementParameters::findCells(const polyMesh&) const in file autoHexMesh/autoHexMeshDriver/refinementParameters/refinementParameters.C at line 104. Some idea? Thanks again Robert |
Hi,
The STL file seems to be fine.......There does not seem to a problem....... This is some part of the snappyHexMeshDict I used....... ----------- ----------- geometry { elbow.stl { type triSurfaceMesh; name elbow; } }; ........ ........ refinementSurfaces { elbow { // Surface-wise min and max refinement level level (3 3); } } ....... ........ refinementRegions { elbow { mode distance; levels ((0.1 3) (0.5 2) (1 1)); } } locationInMesh (4.0 2.0 2.0); --------------- -------------- -------------- debug 0; mergeTolerance 1E-4; But since the geometry is not closed, there will be mesh in the region between blockMesh and the elbow........If its not required you need to use a closed geometry. Regards, Amol |
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