doc/examples/radial_prism_3d_algo.py

   1 # Usage of Radial Prism 3D meshing algorithm
   2
   3 import salome
   4 salome.salome_init_without_session()
   5
   6 from salome.geom import geomBuilder
   7 from salome.smesh import smeshBuilder
   8
   9 geom_builder = geomBuilder.New()
  10 smesh_builder = smeshBuilder.New()
  11
  12 # Create geometry: hollow sphere
  13
  14 sphere_1 = geom_builder.MakeSphereR( 100 )
  15 sphere_2 = geom_builder.MakeSphereR( 50 )
  16
  17 hollow_sphere = geom_builder.MakeCut( sphere_1, sphere_2, theName="hollow sphere")
  18
  19 faces = geom_builder.ExtractShapes( hollow_sphere, geom_builder.ShapeType["FACE"] )
  20
  21 # Create mesh
  22
  23 mesh = smesh_builder.Mesh( hollow_sphere, "Mesh of hollow sphere" )
  24
  25 # assign Global Radial Prism algorithm
  26 prism_algo = mesh.Prism()
  27
  28 # define projection between the inner and outer spheres
  29 mesh.Triangle( smeshBuilder.NETGEN_1D2D, faces[0] )    # NETGEN on faces[0]
  30 mesh.Projection1D2D( faces[1] ).SourceFace( faces[0] ) # projection faces[0] -> faces[1]
  31
  32 # define distribution of layers using Number of Segments hypothesis in logarithmic mode
  33 prism_algo.NumberOfSegments( 4, 5. )
  34
  35 # compute the mesh
  36 if not mesh.Compute(): raise Exception("Error when computing Mesh")