mirror of
https://github.com/NGSolve/netgen.git
synced 2024-12-26 22:00:33 +05:00
700 lines
16 KiB
C++
700 lines
16 KiB
C++
#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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#include "nginterface.h"
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#include "nginterface_v2.hpp"
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// #include <visual.hpp>
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namespace netgen
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{
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#include "writeuser.hpp"
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extern shared_ptr<Mesh> mesh;
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}
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namespace netgen
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{
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#define NGX_INLINE
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#include "nginterface_v2_impl.hpp"
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shared_ptr<Mesh> Ngx_Mesh :: SelectMesh () const
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{
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shared_ptr<Mesh> hmesh = netgen::mesh;
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netgen::mesh = mesh;
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// vssolution.SetMesh(mesh);
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// vsmesh.SetMesh(mesh);
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SetGlobalMesh (mesh);
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return hmesh;
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}
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Ngx_Mesh :: Ngx_Mesh (shared_ptr<Mesh> amesh)
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{
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if (amesh)
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mesh = amesh;
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else
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mesh = netgen::mesh;
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}
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Ngx_Mesh * LoadMesh (const string & filename)
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{
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netgen::mesh.reset();
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Ng_LoadMesh (filename.c_str());
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return new Ngx_Mesh (netgen::mesh);
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}
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void Ngx_Mesh :: LoadMesh (const string & filename)
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{
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netgen::mesh.reset();
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Ng_LoadMesh (filename.c_str());
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mesh = netgen::mesh;
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}
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void Ngx_Mesh :: LoadMesh (istream & ist)
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{
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netgen::mesh = make_shared<Mesh>();
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netgen::mesh -> Load (ist);
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mesh = netgen::mesh;
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// vssolution.SetMesh(mesh);
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// vsmesh.SetMesh(mesh);
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SetGlobalMesh (mesh);
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}
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void Ngx_Mesh :: SaveMesh (ostream & ost) const
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{
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mesh -> Save (ost);
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}
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void Ngx_Mesh :: DoArchive (ngstd::Archive & archive)
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{
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if (archive.Output())
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{
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stringstream str;
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SaveMesh (str);
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string st = str.str();
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archive & st;
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}
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else
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{
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string st;
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archive & st;
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stringstream str(st);
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LoadMesh (str);
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}
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}
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void Ngx_Mesh :: UpdateTopology ()
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{
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if (mesh)
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mesh -> UpdateTopology();
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}
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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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*/
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Ngx_Mesh :: ~Ngx_Mesh ()
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{
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;
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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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}
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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 0; // 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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/*
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Ng_Point Ngx_Mesh :: GetPoint (int nr) const
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{
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return Ng_Point (&mesh->Point(nr + PointIndex::BASE)(0));
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}
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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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/*
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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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*/
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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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/*
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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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return 0;
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}
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template <> int DLL_HEADER Ng_GetNElements<1> ()
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{
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return mesh->GetNSeg();
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}
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template <> DLL_HEADER int Ng_GetNElements<2> ()
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{
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return mesh->GetNSE();
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}
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template <> DLL_HEADER int Ng_GetNElements<3> ()
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{
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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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Ng_Element ret;
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return ret;
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}
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template <> DLL_HEADER Ng_Element Ng_GetElement<1> (int nr)
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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 Ng_GetElement<2> (int nr)
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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 Ng_GetElement<3> (int nr)
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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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*/
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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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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 <> 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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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 < 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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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 <> 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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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) x[0] = xg(0);
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if (dxdxi) dxdxi[0] = dx(0);
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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) 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 <> 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) 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 <> 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) 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 <> 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) 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 <> 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) const
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{
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for (int i = 0; i < npts; i++)
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ElementTransformation<1,1> (elnr, xi + i*sxi, x+i*sx, dxdxi+i*sdxdxi);
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}
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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) 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 Ngx_Mesh :: GetNNodes<1> ()
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{
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return mesh->GetTopology().GetNEdges();
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}
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template <> DLL_HEADER int Ngx_Mesh :: GetNNodes<2> ()
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{
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return mesh->GetTopology().GetNFaces();
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}
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template <> DLL_HEADER Ng_Node<1> Ngx_Mesh :: GetNode<1> (int nr) const
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{
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Ng_Node<1> node;
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node.vertices.ptr = mesh->GetTopology().GetEdgeVerticesPtr(nr);
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return node;
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}
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template <> DLL_HEADER Ng_Node<2> Ngx_Mesh :: GetNode<2> (int nr) const
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{
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Ng_Node<2> node;
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node.vertices.ptr = mesh->GetTopology().GetFaceVerticesPtr(nr);
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node.vertices.nv = (node.vertices.ptr[3] == 0) ? 3 : 4;
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return node;
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}
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template <>
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DLL_HEADER int Ngx_Mesh :: FindElementOfPoint <2>
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(double * p, double * lami,
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bool build_searchtree,
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int * const indices, int numind) const
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{
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Array<int> dummy(numind);
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for (int i = 0; i < numind; i++) dummy[i] = indices[i]+1;
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double lam3[3];
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Point<3> p2d(p[0], p[1], 0);
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int ind =
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mesh->GetElementOfPoint(p2d, lam3, &dummy, build_searchtree);
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if (ind > 0)
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{
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if(mesh->SurfaceElement(ind).GetType()==QUAD)
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{
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lami[0] = lam3[0];
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lami[1] = lam3[1];
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}
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else
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{
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lami[0] = 1-lam3[0]-lam3[1];
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lami[1] = lam3[0];
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}
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}
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return ind-1;
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}
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template <>
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DLL_HEADER int Ngx_Mesh :: FindElementOfPoint <3>
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(double * p, double * lami,
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bool build_searchtree,
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int * const indices, int numind) const
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{
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Array<int> dummy(numind);
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for (int i = 0; i < numind; i++) dummy[i] = indices[i]+1;
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Point<3> p3d(p[0], p[1], p[2]);
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int ind =
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mesh->GetElementOfPoint(p3d, lami, &dummy, build_searchtree);
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return ind-1;
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}
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#ifdef PARALLEL
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std::tuple<int,int*> Ngx_Mesh :: GetDistantProcs (int nodetype, int locnum) const
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{
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switch (nodetype)
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{
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case 0:
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{
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FlatArray<int> dn = mesh->GetParallelTopology().GetDistantPNums(locnum);
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return std::tuple<int,int*>(dn.Size(), &dn[0]);
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}
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case 1:
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{
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FlatArray<int> dn = mesh->GetParallelTopology().GetDistantEdgeNums(locnum);
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return std::tuple<int,int*>(dn.Size(), &dn[0]);
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}
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case 2:
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{
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FlatArray<int> dn = mesh->GetParallelTopology().GetDistantFaceNums(locnum);
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return std::tuple<int,int*>(dn.Size(), &dn[0]);
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}
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default:
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return std::tuple<int,int*>(0,nullptr);
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}
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}
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#endif
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}
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int link_it_nginterface_v2;
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