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- Info
Mesh
Mesh module (SMESH)
The goal of this module is to create meshes on the basis of geometrical models created or imported into GEOM. It uses a set of meshing algorithms and their corresponding conditions (hypotheses) to compute meshes. In addition, a new mesher can be easily connected to this module by using the existing plugin mechanism. The main functionalities of SMESH are:
- Visualization of meshes in 3D viewers:
- Shading, Wireframe
- Shrink
- Nodes
- Special options for mesh (color, lines width, shrink coefficient, transparency)
- Show quadratic elements as lines or arcs of circle
- Display/Erase nodes/elements numbers
- Displaying/Erasing of mesh and submeshes
- Show/hide faces orientation vectors
- Use clipping planes to analyze mesh internal structure
- Computation of meshes and submeshes on the basis of the following hypotheses:
- Average length of edges
- Arithmetic 1D
- Automatic Length
- Deflection 1D
- Maximal size of edge
- Number of segments
- Start and End Length
- Maximal triangle area
- Quadrangle parameters
- Maximal tetrahedron volume
- Computation of meshes and submeshes using the following algorithms:
- Internal
- Segment around vertex
- Wire discretization
- Projection 1D
- Composite side discretization
- Use existing edges
- Triangulation (Mefisto 2D)
- Quadrangle (mapping)
- Projection 2D
- Use existing faces
- Hexahedron (I,j,k)
- Projection 3D
- 3D Extrusion
- External
- BLSURF (with support of Size Map feature)
- Tetrahedron NETGEN 1D-2D / 2D / 1D-2D-3D
- Tetrahedron GHS3D
- Hexotic
- GHS3D Parallel
- Group management:
- Creation of groups of elements
- Editing groups
- Deleting groups
- Add/Remove elements from a group
- Boolean operations on groups: Union, Intersect, Cut
- Remove a group
- Display/Erase a group
- Selection of groups
- Selection filter library
- Highlighting of groups
- Information about computed meshes
- Import meshes:MED, UNV, DAT
- Export meshes: MED, UNV, DAT, STL
- Quality controls of meshes:
- Length of edges
- Free boundaries
- Boundaries of multi-connections
- Area
- Taper
- Aspect Ratio 2D & 3D
- Minimum angle
- Warping angle
- Skew
- Free nodes, free edges, free faces
- Volume
- Mesh modifications:
- Add/Remove (node; 0D element, 1D elements: edge, triangle, quadrangle, polygon; 3D elements: tetrahedron, hexahedron, polyhedron; quadratic 1D/2D/3D elements: edge, triangle, quadrangle, tetrahedron, pyramid, pentahedron, hexahedron)
- Diagonal inversion
- Changing orientation
- Conversion of a group of triangles into quadrangles
- Conversion of a group of quadrangles into triangles
- Moving of node
- Union of Triangles
- Smothing
- Revolution
- Extrusion
- Extrusion along Path
- Transformation (Translation, Rotation, Symmetry, Sewing, Merging nodes/elements)
- Pattern Mapping
- Force mesh to pass through predefined point
- Build mesh compound
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Underlying technologies
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