210 lines
6.0 KiB
Markdown
210 lines
6.0 KiB
Markdown
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---
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GENERATOR: 'Mozilla/4.05C-SGI [en] (X11; I; IRIX64 6.5 IP28) [Netscape]'
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---
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<img height="300" width="300" src="https://lanl.github.io/LaGriT/assets/images/arrow2.gif">"30"
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"30"](http://www.ees.lanl.gov/staff/rao/mstkla/mstkla.md#MESH%20REGION:) <img height="300" width="300" src="https://lanl.github.io/LaGriT/assets/images/arrow3.gif">"30"
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"30"](http://www.ees.lanl.gov/staff/rao/mstkla/Mesh.md) <img height="300" width="300" src="https://lanl.github.io/LaGriT/assets/images/arrow4.gif">"30"
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"30"](http://www.ees.lanl.gov/staff/rao/mstkla/MeshFace.md)
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------------------------------------------------------------------------
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------------------------------------------------------------------------
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**MESH REGIONS**:
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------------------------------------------------------------------------
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*int* **MR\_Number**(*PMeshObj* mesh, *PMeshRegn* r);
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Number ID for mesh region
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------------------------------------------------------------------------
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*PGeomEntity* **MR\_GMEntity**(*PMeshObj* mesh, *PMeshRegn* r);
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Geometric entity (can only be a region) mesh region is classified on
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------------------------------------------------------------------------
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*ElType* **MR\_Type**(*PMeshObj* mesh, *PMeshRegn* r);
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Type of element that mesh region is (TET, HEX etc)
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------------------------------------------------------------------------
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*int* **MR\_NumVerts**(*PMeshObj* mesh, *PMeshRegn* r);
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Number of vertices in the element
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------------------------------------------------------------------------
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*void* **MR\_Vertices**(*PMeshObj* mesh, *PMeshRegn* r, *int*
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*nv,
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*PMeshVert*
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*
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*verts);
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List of vertices of a mesh region
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------------------------------------------------------------------------
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*void* **MR\_VerticesE**(*PMeshObj* mesh, *PMeshRegn* r, *PMeshEdge* e,
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*PMeshVert*
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*rverts);
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<img height="300" width="300" src="https://lanl.github.io/LaGriT/assets/images/note1.gif">"31" "32"**THIS OPERATOR IS
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APPLICABLE ONLY TO TETS**
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Return the vertices of the given tet w.r.t to the given edge. The
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vertices v1 and v2 are vertices of the edge (maybe (0,1) or (1,0)) -
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these are returned as rverts[0] and rverts[1]. The vertices
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rverts[2]
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(call it k1) and rverts[3] (k2) are returned such that if the
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vertices
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are above the edge then looking from vertex 0 to vertex 1 of the edge
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k2 is to the left of k1. Mathematically,
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(v2k1 X v2k2) . v2v1 > 0
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where v2k1 is the vector from v2 to k1, etc.
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------------------------------------------------------------------------
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*void* **MR\_VerticesLocE**(*PMeshObj* mesh, *PMeshRegn* r, *int* enum,
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*PMeshVert*
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*rverts);
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<img height="300" width="300" src="https://lanl.github.io/LaGriT/assets/images/note1.gif">"31" "32"**THIS OPERATOR IS
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APPLICABLE ONLY TO TETS**
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Same as MR\_VerticesE (above) but the edge is specified by a local edge
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number of the region instead of an explicit pointer.
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------------------------------------------------------------------------
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*int* **MR\_NumFaces**(*PMeshObj* mesh, *PMeshRegn* r);
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Number of faces of element
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------------------------------------------------------------------------
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*void* **MR\_Edges**(*PMeshObj* mesh, *PMeshRegn* r, *int*
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*num,
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*PMeshEdge*
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*
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*edge);
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List of edges of a mesh region
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------------------------------------------------------------------------
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*void* **MR\_Faces**(*PMeshObj* mesh, *PMeshRegn* r, *int*
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*num,
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*PMeshFace*
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*
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*faces);
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List of faces of a mesh region
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------------------------------------------------------------------------
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*int* **MR\_LocEdgeNum**(*PMeshObj* mesh, *PMeshRegn* r, *PMeshEdge* e);
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Local edge number of the given edge in the given region
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------------------------------------------------------------------------
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*int* **MR\_LocFaceNum**(*PMeshObj* mesh, *PMeshRegn* r, *PMeshFace* f);
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Local face number of the given face in the given region.
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------------------------------------------------------------------------
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*int **MR\_EntOnBdry***(*PMeshObj* mesh, *PMeshRegn* r, MType mtype,
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PMeshEntity pent);
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Check if mesh entity of type 'mtype' is on the boundary of mesh
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region. mtype can be MFACE, MEDGE or MVERTEX. In other words, the
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operator checks if mesh region is made up of mesh face, edge or vertex
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in question.
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------------------------------------------------------------------------
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*PMeshRegn* **MR\_FaceNebr**(*PMeshObj* mesh, *PMeshRegn* r, *int*
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lfnum);
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Return the mesh region adjacent to face number 'lfnum' of region 'r'
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The local face numbering starts from 0 in C style.
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------------------------------------------------------------------------
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[]{#MR-Attribs*int* **MR\_GetAttVal**(*PMeshObj* mesh, *PMeshRegn* r,
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*char
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**attname, *int
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**ival,
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*double
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**rval, *char
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**cval, *void
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*
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**pval, *AttType
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**atype);
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Depending on the type of the attribute, the appropriate field will be
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filled on succesful completion. Arrays are returned in pval, integer in
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ival and real number in rval (I don't think lagrit supports character
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attributes)
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<img height="300" width="300" src="https://lanl.github.io/LaGriT/assets/images/bullet12.gif">"27" "31" Will only work for
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solid meshes
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------------------------------------------------------------------------
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*int* **MR\_SetAttVal**(*PMeshObj* mesh, *PMeshRegn* r, *char
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**attname, *int* ival,
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*double* rval, *char* cval, *void
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**pval);
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This is similar to the GetAttVal routine - depending on the type and
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rank, one sends in a value with the right variable
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*
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*
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* PERHAPS these routines need an additional variable, "rank" but
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for
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now.....
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<img height="300" width="300" src="https://lanl.github.io/LaGriT/assets/images/bullet12.gif">"27" "31" Will only work for
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solid meshes
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<img height="300" width="300" src="https://lanl.github.io/LaGriT/assets/images/arrow2.gif">"30"
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"30"](http://www.ees.lanl.gov/staff/rao/mstkla/mstkla.md#MESH%20REGION:) <img height="300" width="300" src="https://lanl.github.io/LaGriT/assets/images/arrow3.gif">"30"
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"30"](http://www.ees.lanl.gov/staff/rao/mstkla/Mesh.md) <img height="300" width="300" src="https://lanl.github.io/LaGriT/assets/images/arrow4.gif">"30"
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"30"](http://www.ees.lanl.gov/staff/rao/mstkla/MeshFace.md)
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