mirror of
https://github.com/NGSolve/netgen.git
synced 2024-12-25 05:20:34 +05:00
Ngx_Mesh C++ interface
This commit is contained in:
Joachim Schoeberl
parent
a9552c8be6
commit
641d40639d
@ -1785,7 +1785,7 @@ void Ng_GetPeriodicVertices (int idnr, int * pairs)
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int Ng_GetNPeriodicEdges (int idnr)
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{
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Array<INDEX,PointIndex::BASE> map;
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Array<int,PointIndex::BASE> map;
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//const MeshTopology & top = mesh->GetTopology();
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int nse = mesh->GetNSeg();
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@ -1797,8 +1797,8 @@ int Ng_GetNPeriodicEdges (int idnr)
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for (SegmentIndex si = 0; si < nse; si++)
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{
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PointIndex other1 = map[(*mesh)[si][0]];
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PointIndex other2 = map[(*mesh)[si][1]];
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PointIndex other1 = PointIndex (map[(*mesh)[si][0]]);
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PointIndex other2 = PointIndex (map[(*mesh)[si][1]]);
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// (*testout) << "seg = " << (*mesh)[si] << "; other = "
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// << other1 << "-" << other2 << endl;
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if (other1 && other2 && mesh->IsSegment (other1, other2))
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@ -1812,7 +1812,7 @@ int Ng_GetNPeriodicEdges (int idnr)
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void Ng_GetPeriodicEdges (int idnr, int * pairs)
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{
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Array<INDEX,PointIndex::BASE> map;
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Array<int,PointIndex::BASE> map;
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const MeshTopology & top = mesh->GetTopology();
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int nse = mesh->GetNSeg();
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@ -1825,8 +1825,8 @@ void Ng_GetPeriodicEdges (int idnr, int * pairs)
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for (SegmentIndex si = 0; si < nse; si++)
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{
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PointIndex other1 = map[(*mesh)[si][0]];
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PointIndex other2 = map[(*mesh)[si][1]];
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PointIndex other1 = PointIndex (map[(*mesh)[si][0]]);
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PointIndex other2 = PointIndex (map[(*mesh)[si][1]]);
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if (other1 && other2 && mesh->IsSegment (other1, other2))
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{
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SegmentIndex otherseg = mesh->SegmentNr (other1, other2);
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@ -1,18 +1,9 @@
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#include <mystdlib.h>
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#include <meshing.hpp>
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#ifdef SOCKETS
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#include "../sockets/sockets.hpp"
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#endif
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/*
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#ifndef NOTCL
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#include <visual.hpp>
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#endif
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*/
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#include "nginterface.h"
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#include "nginterface_v2.hpp"
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@ -21,15 +12,214 @@
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namespace netgen
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{
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#include "writeuser.hpp"
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extern AutoPtr<Mesh> mesh;
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}
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namespace netgen
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{
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Ngx_Mesh * LoadMesh (const string & filename)
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{
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netgen::mesh.Ptr() = NULL;
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Ng_LoadMesh (filename.c_str());
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return new Ngx_Mesh (netgen::mesh.Ptr());
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}
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Ngx_Mesh :: Ngx_Mesh (Mesh * amesh)
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: mesh(amesh)
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{ ; }
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Ngx_Mesh :: ~Ngx_Mesh ()
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{
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if (netgen::mesh.Ptr() == mesh)
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netgen::mesh.Ptr() = NULL;
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delete mesh;
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}
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int Ngx_Mesh :: GetDimension() const
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{
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return mesh -> GetDimension();
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}
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int Ngx_Mesh :: GetNLevels() const
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{
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return mesh -> mglevels;
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}
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int Ngx_Mesh :: GetNElements (int dim) const
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{
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switch (dim)
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{
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case 0: return mesh -> GetNV();
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case 1: return mesh -> GetNSeg();
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case 2: return mesh -> GetNSE();
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case 3: return mesh -> GetNE();
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}
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return -1;
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}
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int Ngx_Mesh :: GetNNodes (int nt) const
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{
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switch (nt)
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{
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case 0: return mesh -> GetNV();
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case 1: return mesh->GetTopology().GetNEdges();
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case 2: return mesh->GetTopology().GetNFaces();
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case 3: return mesh -> GetNE();
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}
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return -1;
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}
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Ng_Point Ngx_Mesh :: GetPoint (int nr) const
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{
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Ng_Point ret;
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ret.pt = &mesh->Point(nr + PointIndex::BASE)(0);
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return ret;
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}
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template <> DLL_HEADER Ng_Element Ngx_Mesh :: GetElement<0> (int nr) const
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{
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cout << "Netgen does not support 0-D elements" << endl;
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Ng_Element ret;
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return ret;
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}
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template <> DLL_HEADER Ng_Element Ngx_Mesh :: GetElement<1> (int nr) const
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{
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const Segment & el = mesh->LineSegment (SegmentIndex(nr));
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Ng_Element ret;
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ret.type = NG_ELEMENT_TYPE(el.GetType());
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ret.points.num = el.GetNP();
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ret.points.ptr = (int*)&(el[0]);
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ret.vertices.num = 2;
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ret.vertices.ptr = (int*)&(el[0]);
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ret.edges.num = 1;
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ret.edges.ptr = mesh->GetTopology().GetSegmentElementEdgesPtr (nr);
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ret.faces.num = 0;
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ret.faces.ptr = NULL;
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return ret;
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}
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template <> DLL_HEADER Ng_Element Ngx_Mesh :: GetElement<2> (int nr) const
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{
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const Element2d & el = mesh->SurfaceElement (SurfaceElementIndex (nr));
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Ng_Element ret;
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ret.type = NG_ELEMENT_TYPE(el.GetType());
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ret.points.num = el.GetNP();
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ret.points.ptr = (int*)&el[0];
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ret.vertices.num = el.GetNV();
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ret.vertices.ptr = (int*)&(el[0]);
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ret.edges.num = MeshTopology::GetNEdges (el.GetType());
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ret.edges.ptr = mesh->GetTopology().GetSurfaceElementEdgesPtr (nr);
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ret.faces.num = MeshTopology::GetNFaces (el.GetType());
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ret.faces.ptr = mesh->GetTopology().GetSurfaceElementFacesPtr (nr);
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return ret;
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}
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template <> DLL_HEADER Ng_Element Ngx_Mesh :: GetElement<3> (int nr) const
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{
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const Element & el = mesh->VolumeElement (ElementIndex (nr));
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Ng_Element ret;
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ret.type = NG_ELEMENT_TYPE(el.GetType());
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ret.points.num = el.GetNP();
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ret.points.ptr = (int*)&el[0];
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ret.vertices.num = el.GetNV();
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ret.vertices.ptr = (int*)&(el[0]);
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ret.edges.num = MeshTopology::GetNEdges (el.GetType());
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ret.edges.ptr = mesh->GetTopology().GetElementEdgesPtr (nr);
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ret.faces.num = MeshTopology::GetNFaces (el.GetType());
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ret.faces.ptr = mesh->GetTopology().GetElementFacesPtr (nr);
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return ret;
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}
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template <>
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DLL_HEADER int Ngx_Mesh :: GetElementIndex<0> (int nr) const
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{
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return 0;
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}
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template <>
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DLL_HEADER int Ngx_Mesh :: GetElementIndex<1> (int nr) const
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{
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return (*mesh)[SegmentIndex(nr)].si;
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}
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template <>
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DLL_HEADER int Ngx_Mesh :: GetElementIndex<2> (int nr) const
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{
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int ind = (*mesh)[SurfaceElementIndex(nr)].GetIndex();
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return mesh->GetFaceDescriptor(ind).BCProperty();
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}
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template <>
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DLL_HEADER int Ngx_Mesh :: GetElementIndex<3> (int nr) const
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{
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return (*mesh)[ElementIndex(nr)].GetIndex();
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}
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/*
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DLL_HEADER Ng_Point Ng_GetPoint (int nr)
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{
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Ng_Point ret;
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ret.pt = &mesh->Point(nr + PointIndex::BASE)(0);
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return ret;
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}
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template <>
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DLL_HEADER int Ng_GetElementIndex<1> (int nr)
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{
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return (*mesh)[SegmentIndex(nr)].si;
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}
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template <>
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DLL_HEADER int Ng_GetElementIndex<2> (int nr)
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{
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int ind = (*mesh)[SurfaceElementIndex(nr)].GetIndex();
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return mesh->GetFaceDescriptor(ind).BCProperty();
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}
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template <>
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DLL_HEADER int Ng_GetElementIndex<3> (int nr)
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{
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return (*mesh)[ElementIndex(nr)].GetIndex();
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}
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template <> int DLL_HEADER Ng_GetNElements<0> ()
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{
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@ -51,8 +241,6 @@ namespace netgen
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return mesh->GetNE();
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}
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template <> DLL_HEADER Ng_Element Ng_GetElement<0> (int nr)
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{
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cout << "Netgen does not support 0-D elements" << endl;
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@ -123,110 +311,217 @@ namespace netgen
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return ret;
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}
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*/
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DLL_HEADER Ng_Point Ng_GetPoint (int nr)
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template <> DLL_HEADER void Ngx_Mesh ::
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ElementTransformation<3,3> (int elnr,
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const double * xi,
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double * x,
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double * dxdxi) const
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{
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Ng_Point ret;
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ret.pt = &mesh->Point(nr + PointIndex::BASE)(0);
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return ret;
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Point<3> xl(xi[0], xi[1], xi[2]);
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Point<3> xg;
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Mat<3,3> dx;
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mesh->GetCurvedElements().CalcElementTransformation (xl, elnr, xg, dx);
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if (x)
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for (int i = 0; i < 3; i++) x[i] = xg(i);
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if (dxdxi)
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for (int i=0; i<3; i++)
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{
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dxdxi[3*i] = dx(i,0);
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dxdxi[3*i+1] = dx(i,1);
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dxdxi[3*i+2] = dx(i,2);
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}
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}
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template <> DLL_HEADER void Ngx_Mesh ::
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ElementTransformation<2,3> (int elnr,
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const double * xi,
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double * x,
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double * dxdxi) const
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{
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Point<2> xl(xi[0], xi[1]);
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Point<3> xg;
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Mat<3,2> dx;
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mesh->GetCurvedElements().CalcSurfaceTransformation (xl, elnr, xg, dx);
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if (x)
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for (int i = 0; i < 3; i++) x[i] = xg(i);
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if (dxdxi)
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for (int i=0; i<3; i++)
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{
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dxdxi[2*i] = dx(i,0);
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dxdxi[2*i+1] = dx(i,1);
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}
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}
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template <>
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DLL_HEADER int Ng_GetElementIndex<1> (int nr)
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template <> DLL_HEADER void Ngx_Mesh ::
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ElementTransformation<2,2> (int elnr,
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const double * xi,
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double * x,
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double * dxdxi) const
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{
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return (*mesh)[SegmentIndex(nr)].si;
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}
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Point<2> xl(xi[0], xi[1]);
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Point<3> xg;
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Mat<3,2> dx;
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template <>
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DLL_HEADER int Ng_GetElementIndex<2> (int nr)
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{
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int ind = (*mesh)[SurfaceElementIndex(nr)].GetIndex();
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return mesh->GetFaceDescriptor(ind).BCProperty();
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}
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mesh->GetCurvedElements().CalcSurfaceTransformation (xl, elnr, xg, dx);
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template <>
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DLL_HEADER int Ng_GetElementIndex<3> (int nr)
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if (x)
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for (int i = 0; i < 2; i++) x[i] = xg(i);
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if (dxdxi)
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for (int i=0; i<2; i++)
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{
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return (*mesh)[ElementIndex(nr)].GetIndex();
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dxdxi[2*i] = dx(i,0);
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dxdxi[2*i+1] = dx(i,1);
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}
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}
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template <>
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DLL_HEADER void Ng_MultiElementTransformation<3,3> (int elnr, int npts,
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template <> DLL_HEADER void Ngx_Mesh ::
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ElementTransformation<1,2> (int elnr,
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const double * xi,
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double * x,
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double * dxdxi) const
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{
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Point<3> xg;
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Vec<3> dx;
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mesh->GetCurvedElements().CalcSegmentTransformation (xi[0], elnr, xg, dx);
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if (x)
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for (int i = 0; i < 2; i++) x[i] = xg(i);
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if (dxdxi)
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for (int i=0; i < 2; i++)
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dxdxi[i] = dx(i);
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}
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template <> DLL_HEADER void Ngx_Mesh ::
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ElementTransformation<1,1> (int elnr,
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const double * xi,
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double * x,
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double * dxdxi) const
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{
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cout << "1D not supported" << endl;
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}
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template <> DLL_HEADER void Ngx_Mesh ::
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ElementTransformation<0,1> (int elnr,
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const double * xi,
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double * x,
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double * dxdxi) const
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{
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cout << "1D not supported" << endl;
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}
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template <> DLL_HEADER void Ngx_Mesh ::
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MultiElementTransformation<3,3> (int elnr, int npts,
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const double * xi, size_t sxi,
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double * x, size_t sx,
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double * dxdxi, size_t sdxdxi)
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double * dxdxi, size_t sdxdxi) const
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{
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mesh->GetCurvedElements().CalcMultiPointElementTransformation (elnr, npts, xi, sxi, x, sx, dxdxi, sdxdxi);
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}
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template <>
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DLL_HEADER void Ng_MultiElementTransformation<2,2> (int elnr, int npts,
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template <> DLL_HEADER void Ngx_Mesh ::
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MultiElementTransformation<2,2> (int elnr, int npts,
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const double * xi, size_t sxi,
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double * x, size_t sx,
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double * dxdxi, size_t sdxdxi)
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double * dxdxi, size_t sdxdxi) const
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{
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mesh->GetCurvedElements().CalcMultiPointSurfaceTransformation<2> (elnr, npts, xi, sxi, x, sx, dxdxi, sdxdxi);
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}
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template <>
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DLL_HEADER void Ng_MultiElementTransformation<2,3> (int elnr, int npts,
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template <> DLL_HEADER void Ngx_Mesh ::
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MultiElementTransformation<2,3> (int elnr, int npts,
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const double * xi, size_t sxi,
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double * x, size_t sx,
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double * dxdxi, size_t sdxdxi)
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double * dxdxi, size_t sdxdxi) const
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{
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mesh->GetCurvedElements().CalcMultiPointSurfaceTransformation<3> (elnr, npts, xi, sxi, x, sx, dxdxi, sdxdxi);
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}
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template <>
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DLL_HEADER void Ng_MultiElementTransformation<1,2> (int elnr, int npts,
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template <> DLL_HEADER void Ngx_Mesh ::
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MultiElementTransformation<1,2> (int elnr, int npts,
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const double * xi, size_t sxi,
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double * x, size_t sx,
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double * dxdxi, size_t sdxdxi)
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double * dxdxi, size_t sdxdxi) const
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{
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mesh->GetCurvedElements().CalcMultiPointSegmentTransformation<2> (elnr, npts, xi, sxi, x, sx, dxdxi, sdxdxi);
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}
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template <>
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DLL_HEADER void Ng_MultiElementTransformation<1,1> (int elnr, int npts,
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template <> DLL_HEADER void Ngx_Mesh ::
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MultiElementTransformation<1,1> (int elnr, int npts,
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const double * xi, size_t sxi,
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double * x, size_t sx,
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double * dxdxi, size_t sdxdxi)
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double * dxdxi, size_t sdxdxi) const
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{
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cout << "1D not supported" << endl;
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}
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template <>
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DLL_HEADER void Ng_MultiElementTransformation<0,1> (int elnr, int npts,
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template <> DLL_HEADER void Ngx_Mesh ::
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MultiElementTransformation<0,1> (int elnr, int npts,
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const double * xi, size_t sxi,
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double * x, size_t sx,
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double * dxdxi, size_t sdxdxi)
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double * dxdxi, size_t sdxdxi) const
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{
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cout << "1D not supported" << endl;
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}
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||||
|
||||
|
||||
template <> DLL_HEADER int Ng_GetNNodes<1> ()
|
||||
|
||||
|
||||
|
||||
template <> DLL_HEADER int Ngx_Mesh :: GetNNodes<1> ()
|
||||
{
|
||||
return mesh->GetTopology().GetNEdges();
|
||||
}
|
||||
|
||||
template <> DLL_HEADER int Ng_GetNNodes<2> ()
|
||||
template <> DLL_HEADER int Ngx_Mesh :: GetNNodes<2> ()
|
||||
{
|
||||
return mesh->GetTopology().GetNFaces();
|
||||
}
|
||||
|
||||
template <> DLL_HEADER Ng_Node<1> Ng_GetNode<1> (int nr)
|
||||
template <> DLL_HEADER Ng_Node<1> Ngx_Mesh :: GetNode<1> (int nr)
|
||||
{
|
||||
Ng_Node<1> node;
|
||||
node.vertices.ptr = mesh->GetTopology().GetEdgeVerticesPtr(nr);
|
||||
return node;
|
||||
}
|
||||
|
||||
template <> DLL_HEADER Ng_Node<2> Ng_GetNode<2> (int nr)
|
||||
template <> DLL_HEADER Ng_Node<2> Ngx_Mesh :: GetNode<2> (int nr)
|
||||
{
|
||||
Ng_Node<2> node;
|
||||
node.vertices.ptr = mesh->GetTopology().GetFaceVerticesPtr(nr);
|
||||
@ -234,6 +529,57 @@ namespace netgen
|
||||
return node;
|
||||
}
|
||||
|
||||
|
||||
template <>
|
||||
DLL_HEADER int Ngx_Mesh :: FindElementOfPoint <2>
|
||||
(double * p, double * lami,
|
||||
bool build_searchtree,
|
||||
int * const indices, int numind)
|
||||
|
||||
{
|
||||
Array<int> dummy(numind);
|
||||
for (int i = 0; i < numind; i++) dummy[i] = indices[i]+1;
|
||||
|
||||
double lam3[3];
|
||||
Point<3> p2d(p[0], p[1], 0);
|
||||
int ind =
|
||||
mesh->GetElementOfPoint(p2d, lam3, &dummy, build_searchtree);
|
||||
|
||||
if (ind > 0)
|
||||
{
|
||||
if(mesh->SurfaceElement(ind).GetType()==QUAD)
|
||||
{
|
||||
lami[0] = lam3[0];
|
||||
lami[1] = lam3[1];
|
||||
}
|
||||
else
|
||||
{
|
||||
lami[0] = 1-lam3[0]-lam3[1];
|
||||
lami[1] = lam3[0];
|
||||
}
|
||||
}
|
||||
return ind-1;
|
||||
}
|
||||
|
||||
|
||||
template <>
|
||||
DLL_HEADER int Ngx_Mesh :: FindElementOfPoint <3>
|
||||
(double * p, double * lami,
|
||||
bool build_searchtree,
|
||||
int * const indices, int numind)
|
||||
|
||||
{
|
||||
Array<int> dummy(numind);
|
||||
for (int i = 0; i < numind; i++) dummy[i] = indices[i]+1;
|
||||
|
||||
Point<3> p3d(p[0], p[1], p[2]);
|
||||
int ind =
|
||||
mesh->GetElementOfPoint(p3d, lami, &dummy, build_searchtree);
|
||||
return ind-1;
|
||||
}
|
||||
|
||||
|
||||
|
||||
}
|
||||
|
||||
|
||||
|
||||
@ -104,7 +104,7 @@ void WriteJCMFormat (const Mesh & mesh,
|
||||
if (el.GetNP() == 4)
|
||||
{
|
||||
for (j = 1; j <= 4; j++)
|
||||
pointsOnTetras.Set(el.PNum(j).GetInt(),1);
|
||||
pointsOnTetras.Set(int (el.PNum(j)),1);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@ -494,7 +494,7 @@ namespace netgen
|
||||
}
|
||||
|
||||
|
||||
for(PointIndex i=PointIndex::BASE; i<mesh.GetNP()+PointIndex::BASE; i++)
|
||||
for(PointIndex i = mesh.Points().Begin(); i < mesh.Points().End(); i++)
|
||||
{
|
||||
if(nodenum[i] == -1)
|
||||
continue;
|
||||
@ -1063,7 +1063,7 @@ namespace netgen
|
||||
|
||||
for(int i=0; i<groups.Size(); i++)
|
||||
groups[i]->SetSize(0);
|
||||
for(PointIndex i=PointIndex::BASE; i<mesh.GetNP()+PointIndex::BASE; i++)
|
||||
for(PointIndex i = mesh.Points().Begin(); i < mesh.Points().End(); i++)
|
||||
{
|
||||
if(i-PointIndex::BASE < point_ids.Size())
|
||||
{
|
||||
|
||||
Loading…
Reference in New Issue
Block a user