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libgenua
Basic Geometry, Numerical Algorithms and Interfaces
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libgenua
Basic Geometry, Numerical Algorithms and Interfaces
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Mesh with dissimilar elements.
MxMesh is a simple container for meshes with different element types. It is meant to be primarily used as an intermediate data structure for conversion between file formats or as a 'dumb' storage after mesh generation.
TODO:
#include <mxmesh.h>
Public Member Functions | |
| MxMesh () | |
| construct empty mesh | |
| virtual | ~MxMesh () |
| destroy mesh | |
| uint | nelements () const |
| number of elements in all sections | |
| uint | nnodes () const |
| number of nodes | |
| const Vct3 & | node (uint i) const |
| access node | |
| Vct3 & | node (uint i) |
| access node | |
| const PointList< 3 > & | nodes () const |
| access node array | |
| PointList< 3 > & | nodes () |
| access node array | |
| uint | appendNode (const Vct3 &p) |
| append a single vertex | |
| uint | appendNodes (const PointList< 3 > &nds) |
| append nodes, return index of the first new node | |
| template<class NodeIter > | |
| uint | appendNodes (NodeIter nbegin, NodeIter nend) |
| append nodes, return index of the first new node | |
| uint | nsections () const |
| number of sections | |
| const MxMeshSection & | section (uint i) const |
| access mesh section | |
| MxMeshSection & | section (uint i) |
| access mesh section | |
| uint | findSection (uint eix) const |
| determine section of element eix | |
| uint | findSection (const std::string &sname) const |
| determine section index from name | |
| const uint * | globalElement (uint gix, uint &n, uint &isec) const |
| search global element data | |
| void | elementSections (const Indices &gix, ConnectMap &s2e) const |
| assemble section-element connection | |
| uint | appendSection (const MxMeshSection &ms) |
| add mesh section, return index | |
| uint | appendSection (Mx::ElementType t, const Indices &idx) |
| add mesh section, return index | |
| uint | appendSection (const TriMesh &m) |
| add triangular mesh as section | |
| uint | appendSection (const PointGrid< 3 > &pg) |
| add point grid as Quad4 elements | |
| uint | appendSection (const PointList< 3 > &pts) |
| add a set of lines connecting pts | |
| uint | appendSection (const CgMesh &cgm) |
| add triangles from CgMesh | |
| void | eraseSection (uint k) |
| erase a single section | |
| uint | mirrorCopyNodes (const Indices &snodes, const Plane &pln) |
| insert mirror copies of nodes in set, return node index offset | |
| uint | mirrorCopySection (uint k, uint voff, const Indices &snodes, bool merge=true) |
| create a mirror copy of section k (generates new nodes) | |
| uint | nbocos () const |
| number of boundary condition sets | |
| const MxMeshBoco & | boco (uint i) const |
| access boundary condition spec | |
| MxMeshBoco & | boco (uint i) |
| access boundary condition spec | |
| uint | appendBoco (Mx::BocoType t, const Indices &idx) |
| append boundary condition element group | |
| uint | appendBoco (const MxMeshBoco &bc) |
| append boundary condition element group | |
| uint | appendBoco (MxMeshBoco &&bc) |
| append boundary condition element group | |
| void | eraseBoco (uint k) |
| erase element subset | |
| void | clearBocos () |
| erase all boundary condition sets | |
| uint | findBoco (const std::string &s) const |
| find boco group by name | |
| uint | mappedSection (uint iboco) const |
| determine which, if any, section maps exactly to iboco | |
| uint | containedInSection (uint iboco) const |
| determine in which section, if any, iboco is contained | |
| uint | nfields () const |
| number of fields | |
| uint | nDimFields (uint nd=3) const |
| number of vector-valued fields with dimension nd | |
| const MxMeshField & | field (uint i) const |
| access field i | |
| MxMeshField & | field (uint i) |
| access field i | |
| void | bindFields () |
| bind misassigned fields to this | |
| void | reserveFields (uint n) |
| reserve storage for n fields | |
| uint | appendField (const MxMeshField &f) |
| add point-data field | |
| uint | appendField (MxMeshField &&f) |
| add point-data field | |
| uint | swapField (MxMeshField &f) |
| swap-in point-data field (deprecated) | |
| uint | appendField (const std::string &s, const Vector &v) |
| add scalar real field | |
| uint | appendField (const std::string &s, const DVector< float > &v) |
| add scalar real field | |
| uint | appendField (const std::string &s, const DVector< int > &v) |
| add scalar integer field | |
| uint | appendField (const std::string &s, const PointList< 3 > &v) |
| add 3-component vector field | |
| uint | appendField (const std::string &s, const PointList< 3, float > &v) |
| add 3-component vector field | |
| uint | appendField (const std::string &s, const PointList< 6 > &v) |
| add 6-component vector field | |
| uint | appendField (const std::string &s, const PointList< 6, float > &v) |
| add 6-component vector field | |
| uint | appendRigidBodyMode (int mindex, const Vct3 &rotctr, Real gm=1.0, Real gk=0.0) |
| generate artificial rigid-body modeshapes | |
| uint | findField (const std::string &s) const |
| find field by name, return NotFound otherwise | |
| void | findFields (int valClass, Indices &flds) const |
| find fields of class c | |
| void | eraseField (uint k) |
| erase a single field | |
| void | clearFields () |
| remove all data fields | |
| bool | generateMaxFields (bool useMaxAbs) |
| generate maximum value fields across multiple subcases | |
| MxSolutionTreePtr | solutionTree () const |
| access global solution tree which contains hierarchy data for fields | |
| void | solutionTree (MxSolutionTreePtr p) |
| access global solution tree which contains hierarchy data for fields | |
| void | merge (const MxMesh &a, bool mergeFieldsByName) |
| another mesh, optionally merge fields | |
| uint | ndeform () const |
| number of time-domain subspace nodal deformation fields | |
| const MxMeshDeform & | deform (uint i) const |
| access subspace deformation field | |
| MxMeshDeform & | deform (uint i) |
| access subspace deformation field | |
| void | eraseDeform (uint i) |
| erase a deformation path | |
| uint | appendDeform (const MxMeshDeform &d) |
| append externally created subspace deformation | |
| uint | appendTrajectory (const std::string &fn, const Indices &useCols=Indices()) |
| load trajectory from file | |
| uint | appendFlutterMode (Complex p, const CpxVector &z, int nsample=32) |
| append a flutter mode based on all currently stored vector fields | |
| void | smoothTetNodes (uint npass=1, Real omega=0.5) |
| smooth nodes connected to tetrahedral elements | |
| uint | planeCut (const Plane &p, Indices &ise) const |
| determine a list of elements which intersect plane p | |
| void | nodesBelow (const Plane &p, std::vector< bool > &nbelow) const |
| determine whether nodes are below plane p | |
| virtual void | reorder (const Indices &perm) |
| change element index ordering | |
| uint | dropUnusedNodes () |
| drop unreferenced nodes from mesh (reorders) | |
| uint | dropDegenerateElements () |
| eliminate elements with duplicate vertices | |
| uint | mergeNodes (Real threshold=gmepsilon) |
| drop duplicate nodes | |
| virtual bool | loadAny (const std::string &fname) |
| try to load any of the supported formats from file | |
| void | importMvz (const MeshFields &mvz) |
| import from older MeshFields format | |
| TriMeshPtr | toTriMesh () const |
| generate a TriMesh from triangle sections (interfacing) | |
| CgMeshPtr | toCgMesh () const |
| generate a CgMesh from surface element sections (for interfacing) | |
| void | writeAs (const std::string &fname, int fmt, int compression) const |
| write in specified format, if possible | |
| void | writeSTL (const std::string &fname, bool binaryStl=false) const |
| dump everything to triangles and export to STL format | |
| void | writePLY (const std::string &fname, bool binary) const |
| dump everything to triangles and export to PLY format | |
| void | writeSmesh (const std::string &fname, const PointList< 3 > &holes=PointList< 3 >(), const PointList< 3 > ®ionMarkers=PointList< 3 >(), const Vector ®ionAttr=Vector()) const |
| write 3-node triangles as smesh file for tetgen | |
| void | readTetgen (const std::string &basename, DVector< uint > *ftags=0) |
| import from tetgen volume mesh files | |
| void | readCgns (const std::string &fname) |
| read from CGNS file | |
| void | writeCgns (const std::string &fname, bool bcAsSections=false) const |
| write to CGNS file | |
| void | readAbaqus (const std::string &fname) |
| import mesh in ABAQUS text format | |
| void | writeAbaqus (const std::string &fname) const |
| write mesh file in ABAQUS text format | |
| void | writeNastran (const std::string &fname, size_t nodeOffset=0, size_t eidOffset=0) const |
| write mesh in NASTRAN bulk data format | |
| void | writeNastran (std::ostream &os, size_t nodeOffset, size_t eidOffset) const |
| write mesh in NASTRAN bulk data format | |
| BinFileNodePtr | gbfNode (bool share=true) const |
| create a binary file node | |
| void | fromGbf (const BinFileNodePtr &np, bool digestNode=false) |
| retrieve data from gbf file node | |
| virtual XmlElement | toXml (bool share=false) const |
| convert to xml representation | |
| virtual void | fromXml (const XmlElement &xe) |
| retrieve section from xml representation | |
| void | writeZml (const std::string &fname, int compression=1) const |
| convenience function : store to zipped xml | |
| void | readZml (const std::string &fname) |
| convenience function : read from zipped xml | |
| XmlElement | toVTK () const |
| export to VTK xml format (.vtu) | |
| void | writeLegacyVtk (const std::string &fname) const |
| write legacy VTK format (version 2.0) | |
| void | readLegacyVtk (const std::string &fname) |
| read unstructured grid datasets from legacy VTK files | |
| void | readAerel (const std::string &fname) |
| read AERELPLOT file | |
| void | writeFFA (const std::string &fname) const |
| write mesh in FFA format (bmsh) | |
| void | readFFA (const std::string &bmeshFile) |
| read mesh in FFA format (bmsh) | |
| bool | appendFFAFields (const std::string &boutFile) |
| append data fields from .bout file | |
| size_t | writeFieldsBdis (const std::string &basename) const |
| write boundary displacement fields in bdis format | |
| void | writeSU2 (const std::string &fname) const |
| write in SU2 plain text format | |
| void | readSU2 (const std::string &fname) |
| read from SU2 plain text format | |
| void | writeEnsight (const std::string &basename) const |
| write Ensight 7/gold format files | |
| void | readEnsight (const std::string &casename) |
| read Ensight 7/gold format files | |
| void | fakeNastran (const std::string &fname) const |
| write a faked bulk data / modal result file (nastran .f06 format) | |
| void | countElements () |
| update section element counts after change | |
| void | fixate () |
| compute connectivity data | |
| const ConnectMap & | v2eMap () const |
| access vertex-to-element connectivity map | |
| void | v2vMap (ConnectMap &v2v) const |
| update an external vertex-vertex connectivity map | |
| void | e2eMap (ConnectMap &e2e) const |
| generate an external element-to-element map | |
| bool | containsNodesOf (uint e1, uint e2) const |
| test whether element e1 contains all vertices of e2 | |
| uint | connectedComponents (Indices &ecmp, bool crossTypes=false) const |
| Compute connected components. More... | |
| virtual void | clear () |
| clear out all data | |
| virtual float | megabytes () const |
| memory requirements | |
| int | resetSectionColors (int hue, int sat=120, int val=140) |
| set rotating colors for sections | |
| int | resetBocoColors (int hue, int sat=160, int val=170) |
| set rotating colors for boundary conditions | |
 Public Member Functions inherited from MxAnnotated | |
| MxAnnotated () | |
| empty annotations | |
| MxAnnotated (const MxAnnotated &)=default | |
| default copy | |
| MxAnnotated (MxAnnotated &&a) | |
| move constructor | |
| virtual | ~MxAnnotated () |
| meant as a base class | |
| MxAnnotated & | operator= (const MxAnnotated &)=default |
| default copy asignment | |
| MxAnnotated & | operator= (MxAnnotated &&a) |
| move assignment | |
| void | note (const XmlElement &xe) |
| set the contents of the complete annotation object | |
| const XmlElement & | note () const |
| retrieve xml annotation object | |
| void | annotate (const XmlElement &xe) |
| append annotation element | |
| XmlElement::const_iterator | noteBegin () const |
| iterate over annotations | |
| XmlElement::const_iterator | noteEnd () const |
| iterate over annotations | |
| void | attribute (const std::string &key, const std::string &value) |
| assign attribute, i.e. key-value pair in top-level annotation | |
| std::string | attribute (const std::string &key) const |
| retrieve attribute; return empty string if not present | |
Static Public Member Functions | |
| static uint | nElementNodes (Mx::ElementType t) |
| return the number of node for element type t | |
Protected Member Functions | |
| void | assembleVectorFields () |
| reassemble three-dimensional vector field after reading from cgns | |
| virtual int | readTetgenNodes (std::istream &is) |
| read vertex coordinates from tetgen .node file | |
| virtual void | readTetgenFaces (std::istream &is, int offset, DVector< uint > *ptags=0) |
| read boundary triangles from tetgen .face file | |
| virtual void | readTetgenElements (std::istream &is, int offset) |
| read tet elements from tetgen .ele file | |
| void | readFFARegion (const FFANode &node) |
| recover all sections from a FFA file region | |
| void | readFFABoundary (const FFANode &node) |
| recover a section from a bmesh boundary section | |
| MxSolutionTreePtr | appendSubcase (FFANodePtr pregion) |
| create a subcase with a set of fields from EDGE solution | |
| std::string | readAbaqusNodes (std::istream &in, DVector< int > &gid) |
| read node coordinates and node ID numbers from Abaqus mesh file | |
| std::string | readAbaqusElements (const std::string &header, std::istream &in, DVector< int > &eid) |
| create an element section while reading Abaqus mesh file | |
| std::string | readAbaqusSet (const std::string &header, const DVector< int > &eid, std::istream &in) |
| create an element set/boco reading Abaqus mesh file | |
| std::string | readAbaqusKeyword (const std::string &header, std::istream &in, XmlElement &xabq) |
| store Abaqus keyword line in XML annotation | |
| MxSolutionTreePtr | generateMaxFields (MxSolutionTreePtr root, bool useMaxAbs) |
| generate maximum value fields across multiple subcases, start with tree | |
Static Protected Member Functions | |
| static void | fileFloatPrecision (TypeCode tc) |
| globally change the precision stored in files that support conversion | |
Protected Attributes | |
| PointList< 3 > | vtx |
| mesh vertices | |
| std::vector< MxMeshSection > | sections |
| mesh sections | |
| std::vector< MxMeshBoco > | bocos |
| boundary condition specs | |
| std::vector< MxMeshField > | fields |
| node- or element-centered data fields | |
| std::vector< MxMeshDeform > | deforms |
| time-domain mesh deformation spec | |
| MxSolutionTreePtr | soltree |
| global structure for solution fields (optional) | |
| ConnectMap | v2e |
| vertex-to-element connectivity | |
| std::string | meshName |
| mesh id | |
| uint | nelm |
| number of elements present | |
| Protected Attributes inherited from MxAnnotated | |
| XmlElement | xnote |
| xml annotation | |
Static Protected Attributes | |
| static TypeCode | s_fileFloatPrecision = TypeCode(TypeCode::Float64) |
| global setting - store vertex data in single precision? | |
| uint MxMesh::connectedComponents | ( | Indices & | ecmp, |
| bool | crossTypes = false |
||
| ) | const |
Compute connected components.
Assign a component index to each element, spread component index to all reachable elements until all elements have been assigned to a component. Returns number of connected components. If crossTypes is true, than the walk will jump between element classes (volume/surface/line), otherwise, element class bondaries are component boundaries.
1.8.5
