The grid2grid command converts a mesh with one element type to a mesh with another. The conversion type is determined by the second argument.
grid2grid / ioption / [cmo_sink] / [cmo_source]
ioption: is a character string that determines the element type of the
source and sink meshes. There is no ‘default’ option - this argument
must be specified.
- quadtotri2 quad to 2 triangles, no new points.
- prismtotet3 prism to 3 tets, no new points.
- quattotri4 quad to 4 triangles, with one new point.
- pyrtotet4 pyramid to 4 tets, with one new point.
- hextotet5 hex to 5 tets, no new points.
- hextotet6 hex to 6 tets, no new points.
- prismtotet14 prism to 14 tets, four new points (1 + 3 faces).
- prismtotet18 prism to 18 tets, six new points (1 + 5 faces).
- hextotet24 hex to 24 tets, seven new points (1 + 6 faces).
- tree_to_fe quadtree or octree grid to grid with no parent-type elements.
[ cmo_snk / cmo_src ] : the mesh_object names.
cmo_src is the original grid.
cmo_snk is the name for the new tet or triangle grid. These may be the same grid, if so desired. If both are left blank, the current mesh object will be used. If only one mesh name
is given, it will be used at the sink mesh, and the current mesh object will be used as the source.
grid2grid / hextotet24
/ cmo_tet / cmo_hex
Convert each hex element in cmo_hex to 24 tets and name the new grid cmo_tet.
grid2grid / quadtotri4
No source mesh is given, so the current mesh object (which is a quad mesh) will have every quad converted into 4 triangles, and saved as new_mesh.
grid2grid / tree_to_fe
/ new_mesh / octree_mesh
Every element in octree_mesh will be scanned to see if it is a parent element. If it is, it will be removed, so only the leaf elements remain. The result will be stored in new_mesh.