X-Git-Url: http://git.salome-platform.org/gitweb/?p=modules%2Fsmesh.git;a=blobdiff_plain;f=doc%2Fsalome%2Fexamples%2F3dmesh.py;h=47383fee949f4dd77b97f7b85292073caff4e7e3;hp=67a707533cd3d9b07904d350b186658f73ab3632;hb=f0f67c0b47e58361bc50c7169734da604fbfca01;hpb=54182913fbb9df65a3f4cc96f55db3618835ecd8 diff --git a/doc/salome/examples/3dmesh.py b/doc/salome/examples/3dmesh.py index 67a707533..47383fee9 100644 --- a/doc/salome/examples/3dmesh.py +++ b/doc/salome/examples/3dmesh.py @@ -1,18 +1,17 @@ -# 3d mesh generation +# 3d mesh generation and mesh exploration import salome salome.salome_init() -import GEOM from salome.geom import geomBuilder geompy = geomBuilder.New(salome.myStudy) -import SMESH, SALOMEDS +import SMESH from salome.smesh import smeshBuilder smesh = smeshBuilder.New(salome.myStudy) ### # Geometry: an assembly of a box, a cylinder and a truncated cone -# meshed with tetrahedral +# to be meshed with tetrahedra ### # Define values @@ -44,14 +43,14 @@ piece = geompy.MakeFuse(box_cyl, cone) geompy.addToStudy(piece, name) # Create a group of faces -group = geompy.CreateGroup(piece, geompy.ShapeType["FACE"]) +faces_group = geompy.CreateGroup(piece, geompy.ShapeType["FACE"]) group_name = name + "_grp" -geompy.addToStudy(group, group_name) -group.SetName(group_name) +geompy.addToStudy(faces_group, group_name) +faces_group.SetName(group_name) # Add faces to the group faces = geompy.SubShapeAllIDs(piece, geompy.ShapeType["FACE"]) -geompy.UnionIDs(group, faces) +geompy.UnionIDs(faces_group, faces) ### # Create a mesh @@ -60,20 +59,46 @@ geompy.UnionIDs(group, faces) # Define a mesh on a geometry tetra = smesh.Mesh(piece, name) -# Define 1D hypothesis +# Define 1D algorithm and hypothesis algo1d = tetra.Segment() algo1d.LocalLength(10) -# Define 2D hypothesis +# Define 2D algorithm and hypothesis algo2d = tetra.Triangle() algo2d.LengthFromEdges() -# Define 3D hypothesis +# Define 3D algorithm and hypothesis algo3d = tetra.Tetrahedron() algo3d.MaxElementVolume(100) # Compute the mesh tetra.Compute() -# Create a groupe of faces -tetra.Group(group) +# Create a mesh group of all triangles generated on geom faces present in faces_group +group = tetra.Group(faces_group) + +### +# Explore the mesh +### + +# Retrieve coordinates of nodes +coordStr = "" +for node in tetra.GetNodesId(): + x,y,z = tetra.GetNodeXYZ( node ) + coordStr += "%s (%s, %s, %s) " % ( node, x,y,z ) + pass + +# Retrieve nodal connectivity of triangles +triaStr = "" +for tria in tetra.GetElementsByType( SMESH.FACE ): + nodes = tetra.GetElemNodes( tria ) + triaStr += "%s (%s, %s, %s) " % ( tria, nodes[0], nodes[1], nodes[2] ) + +# Retrieve group contents +groupStr = "" +for group in tetra.GetGroups(): + ids = group.GetIDs() + name = group.GetName() + eType = group.GetType() + groupStr += "'%s' %s: %s \n" % ( name, eType, ids ) +