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Christophe Geuzaine authored
tutorial/ -> tutorials/
Christophe Geuzaine authoredtutorial/ -> tutorials/
t7.geo 1.26 KiB
// -----------------------------------------------------------------------------
//
// Gmsh GEO tutorial 7
//
// Background meshes
//
// -----------------------------------------------------------------------------
// Mesh sizes can be specified very accurately by providing a background mesh,
// i.e., a post-processing view that contains the target mesh sizes.
// Merge a list-based post-processing view containing the target mesh sizes:
Merge "t7_bgmesh.pos";
// If the post-processing view was model-based instead of list-based (i.e. if it
// was based on an actual mesh), we would need to create a new model to contain
// the geometry so that meshing it does not destroy the background mesh. It's
// not necessary here since the view is list-based, but it does no harm:
NewModel;
// Merge the first tutorial geometry:
Merge "t1.geo";
// Apply the view as the current background mesh size field:
Background Mesh View[0];
// In order to compute the mesh sizes from the background mesh only, and
// disregard any other size constraints, one can set:
Mesh.MeshSizeExtendFromBoundary = 0;
Mesh.MeshSizeFromPoints = 0;
Mesh.MeshSizeFromCurvature = 0;
// See `t10.geo' for additional information: background meshes are actually a
// particular case of general "mesh size fields".