mirror of
https://github.com/NGSolve/netgen.git
synced 2024-11-14 18:08:33 +05:00
646 lines
15 KiB
C++
646 lines
15 KiB
C++
#include <meshing.hpp>
|
|
|
|
#ifdef SOCKETS
|
|
#include "../sockets/sockets.hpp"
|
|
#endif
|
|
|
|
#include "nginterface.h"
|
|
#include "nginterface_v2.hpp"
|
|
|
|
namespace netgen
|
|
{
|
|
#include "writeuser.hpp"
|
|
extern AutoPtr<Mesh> mesh;
|
|
}
|
|
|
|
|
|
namespace netgen
|
|
{
|
|
#define NGX_INLINE
|
|
#include "nginterface_v2_impl.hpp"
|
|
|
|
Ngx_Mesh :: Ngx_Mesh (class Mesh * amesh)
|
|
{
|
|
if (amesh)
|
|
mesh = amesh;
|
|
else
|
|
mesh = netgen::mesh.Ptr();
|
|
}
|
|
|
|
Ngx_Mesh * LoadMesh (const string & filename)
|
|
{
|
|
netgen::mesh.Ptr() = NULL;
|
|
Ng_LoadMesh (filename.c_str());
|
|
return new Ngx_Mesh (netgen::mesh.Ptr());
|
|
}
|
|
|
|
void Ngx_Mesh :: LoadMesh (const string & filename)
|
|
{
|
|
netgen::mesh.Ptr() = NULL;
|
|
Ng_LoadMesh (filename.c_str());
|
|
mesh = netgen::mesh.Ptr();
|
|
}
|
|
|
|
void Ngx_Mesh :: LoadMesh (istream & ist)
|
|
{
|
|
netgen::mesh.Reset (new Mesh);
|
|
netgen::mesh -> Load (ist);
|
|
mesh = netgen::mesh.Ptr();
|
|
}
|
|
|
|
void Ngx_Mesh :: SaveMesh (ostream & ost) const
|
|
{
|
|
mesh -> Save (ost);
|
|
}
|
|
|
|
void Ngx_Mesh :: DoArchive (ngstd::Archive & archive)
|
|
{
|
|
|
|
if (archive.Output())
|
|
{
|
|
stringstream str;
|
|
SaveMesh (str);
|
|
string st = str.str();
|
|
archive & st;
|
|
}
|
|
else
|
|
{
|
|
string st;
|
|
archive & st;
|
|
stringstream str(st);
|
|
LoadMesh (str);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
Ngx_Mesh :: Ngx_Mesh (Mesh * amesh)
|
|
: mesh(amesh)
|
|
{ ; }
|
|
*/
|
|
|
|
Ngx_Mesh :: ~Ngx_Mesh ()
|
|
{
|
|
if (netgen::mesh.Ptr() == mesh)
|
|
netgen::mesh.Ptr() = NULL;
|
|
delete mesh;
|
|
}
|
|
|
|
int Ngx_Mesh :: GetDimension() const
|
|
{
|
|
return mesh -> GetDimension();
|
|
}
|
|
|
|
int Ngx_Mesh :: GetNLevels() const
|
|
{
|
|
return mesh -> mglevels;
|
|
}
|
|
|
|
int Ngx_Mesh :: GetNElements (int dim) const
|
|
{
|
|
switch (dim)
|
|
{
|
|
case 0: return 0; // mesh -> GetNV();
|
|
case 1: return mesh -> GetNSeg();
|
|
case 2: return mesh -> GetNSE();
|
|
case 3: return mesh -> GetNE();
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int Ngx_Mesh :: GetNNodes (int nt) const
|
|
{
|
|
switch (nt)
|
|
{
|
|
case 0: return mesh -> GetNV();
|
|
case 1: return mesh->GetTopology().GetNEdges();
|
|
case 2: return mesh->GetTopology().GetNFaces();
|
|
case 3: return mesh -> GetNE();
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
Ng_Point Ngx_Mesh :: GetPoint (int nr) const
|
|
{
|
|
return Ng_Point (&mesh->Point(nr + PointIndex::BASE)(0));
|
|
}
|
|
*/
|
|
|
|
template <> DLL_HEADER Ng_Element Ngx_Mesh :: GetElement<0> (int nr) const
|
|
{
|
|
cout << "Netgen does not support 0-D elements" << endl;
|
|
Ng_Element ret;
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
template <> DLL_HEADER Ng_Element Ngx_Mesh :: GetElement<1> (int nr) const
|
|
{
|
|
const Segment & el = mesh->LineSegment (SegmentIndex(nr));
|
|
|
|
Ng_Element ret;
|
|
ret.type = NG_ELEMENT_TYPE(el.GetType());
|
|
|
|
ret.points.num = el.GetNP();
|
|
ret.points.ptr = (int*)&(el[0]);
|
|
|
|
ret.vertices.num = 2;
|
|
ret.vertices.ptr = (int*)&(el[0]);
|
|
|
|
ret.edges.num = 1;
|
|
ret.edges.ptr = mesh->GetTopology().GetSegmentElementEdgesPtr (nr);
|
|
|
|
ret.faces.num = 0;
|
|
ret.faces.ptr = NULL;
|
|
|
|
return ret;
|
|
}
|
|
|
|
template <> DLL_HEADER Ng_Element Ngx_Mesh :: GetElement<2> (int nr) const
|
|
{
|
|
const Element2d & el = mesh->SurfaceElement (SurfaceElementIndex (nr));
|
|
|
|
Ng_Element ret;
|
|
ret.type = NG_ELEMENT_TYPE(el.GetType());
|
|
ret.points.num = el.GetNP();
|
|
ret.points.ptr = (int*)&el[0];
|
|
|
|
ret.vertices.num = el.GetNV();
|
|
ret.vertices.ptr = (int*)&(el[0]);
|
|
|
|
ret.edges.num = MeshTopology::GetNEdges (el.GetType());
|
|
ret.edges.ptr = mesh->GetTopology().GetSurfaceElementEdgesPtr (nr);
|
|
|
|
ret.faces.num = MeshTopology::GetNFaces (el.GetType());
|
|
ret.faces.ptr = mesh->GetTopology().GetSurfaceElementFacesPtr (nr);
|
|
|
|
return ret;
|
|
}
|
|
|
|
template <> DLL_HEADER Ng_Element Ngx_Mesh :: GetElement<3> (int nr) const
|
|
{
|
|
const Element & el = mesh->VolumeElement (ElementIndex (nr));
|
|
|
|
Ng_Element ret;
|
|
ret.type = NG_ELEMENT_TYPE(el.GetType());
|
|
ret.points.num = el.GetNP();
|
|
ret.points.ptr = (int*)&el[0];
|
|
|
|
ret.vertices.num = el.GetNV();
|
|
ret.vertices.ptr = (int*)&(el[0]);
|
|
|
|
ret.edges.num = MeshTopology::GetNEdges (el.GetType());
|
|
ret.edges.ptr = mesh->GetTopology().GetElementEdgesPtr (nr);
|
|
|
|
ret.faces.num = MeshTopology::GetNFaces (el.GetType());
|
|
ret.faces.ptr = mesh->GetTopology().GetElementFacesPtr (nr);
|
|
|
|
return ret;
|
|
}
|
|
*/
|
|
|
|
template <>
|
|
DLL_HEADER int Ngx_Mesh :: GetElementIndex<0> (int nr) const
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
template <>
|
|
DLL_HEADER int Ngx_Mesh :: GetElementIndex<1> (int nr) const
|
|
{
|
|
return (*mesh)[SegmentIndex(nr)].si;
|
|
}
|
|
|
|
template <>
|
|
DLL_HEADER int Ngx_Mesh :: GetElementIndex<2> (int nr) const
|
|
{
|
|
int ind = (*mesh)[SurfaceElementIndex(nr)].GetIndex();
|
|
return mesh->GetFaceDescriptor(ind).BCProperty();
|
|
}
|
|
|
|
template <>
|
|
DLL_HEADER int Ngx_Mesh :: GetElementIndex<3> (int nr) const
|
|
{
|
|
return (*mesh)[ElementIndex(nr)].GetIndex();
|
|
}
|
|
*/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
DLL_HEADER Ng_Point Ng_GetPoint (int nr)
|
|
{
|
|
Ng_Point ret;
|
|
ret.pt = &mesh->Point(nr + PointIndex::BASE)(0);
|
|
return ret;
|
|
}
|
|
|
|
|
|
template <>
|
|
DLL_HEADER int Ng_GetElementIndex<1> (int nr)
|
|
{
|
|
return (*mesh)[SegmentIndex(nr)].si;
|
|
}
|
|
|
|
template <>
|
|
DLL_HEADER int Ng_GetElementIndex<2> (int nr)
|
|
{
|
|
int ind = (*mesh)[SurfaceElementIndex(nr)].GetIndex();
|
|
return mesh->GetFaceDescriptor(ind).BCProperty();
|
|
}
|
|
|
|
template <>
|
|
DLL_HEADER int Ng_GetElementIndex<3> (int nr)
|
|
{
|
|
return (*mesh)[ElementIndex(nr)].GetIndex();
|
|
}
|
|
|
|
template <> int DLL_HEADER Ng_GetNElements<0> ()
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
template <> int DLL_HEADER Ng_GetNElements<1> ()
|
|
{
|
|
return mesh->GetNSeg();
|
|
}
|
|
|
|
template <> DLL_HEADER int Ng_GetNElements<2> ()
|
|
{
|
|
return mesh->GetNSE();
|
|
}
|
|
|
|
template <> DLL_HEADER int Ng_GetNElements<3> ()
|
|
{
|
|
return mesh->GetNE();
|
|
}
|
|
|
|
template <> DLL_HEADER Ng_Element Ng_GetElement<0> (int nr)
|
|
{
|
|
cout << "Netgen does not support 0-D elements" << endl;
|
|
Ng_Element ret;
|
|
return ret;
|
|
}
|
|
|
|
template <> DLL_HEADER Ng_Element Ng_GetElement<1> (int nr)
|
|
{
|
|
const Segment & el = mesh->LineSegment (SegmentIndex(nr));
|
|
|
|
Ng_Element ret;
|
|
ret.type = NG_ELEMENT_TYPE(el.GetType());
|
|
|
|
ret.points.num = el.GetNP();
|
|
ret.points.ptr = (int*)&(el[0]);
|
|
|
|
ret.vertices.num = 2;
|
|
ret.vertices.ptr = (int*)&(el[0]);
|
|
|
|
ret.edges.num = 1;
|
|
ret.edges.ptr = mesh->GetTopology().GetSegmentElementEdgesPtr (nr);
|
|
|
|
ret.faces.num = 0;
|
|
ret.faces.ptr = NULL;
|
|
|
|
return ret;
|
|
}
|
|
|
|
template <> DLL_HEADER Ng_Element Ng_GetElement<2> (int nr)
|
|
{
|
|
const Element2d & el = mesh->SurfaceElement (SurfaceElementIndex (nr));
|
|
|
|
Ng_Element ret;
|
|
ret.type = NG_ELEMENT_TYPE(el.GetType());
|
|
ret.points.num = el.GetNP();
|
|
ret.points.ptr = (int*)&el[0];
|
|
|
|
ret.vertices.num = el.GetNV();
|
|
ret.vertices.ptr = (int*)&(el[0]);
|
|
|
|
ret.edges.num = MeshTopology::GetNEdges (el.GetType());
|
|
ret.edges.ptr = mesh->GetTopology().GetSurfaceElementEdgesPtr (nr);
|
|
|
|
ret.faces.num = MeshTopology::GetNFaces (el.GetType());
|
|
ret.faces.ptr = mesh->GetTopology().GetSurfaceElementFacesPtr (nr);
|
|
|
|
return ret;
|
|
}
|
|
|
|
template <> DLL_HEADER Ng_Element Ng_GetElement<3> (int nr)
|
|
{
|
|
const Element & el = mesh->VolumeElement (ElementIndex (nr));
|
|
|
|
Ng_Element ret;
|
|
ret.type = NG_ELEMENT_TYPE(el.GetType());
|
|
ret.points.num = el.GetNP();
|
|
ret.points.ptr = (int*)&el[0];
|
|
|
|
ret.vertices.num = el.GetNV();
|
|
ret.vertices.ptr = (int*)&(el[0]);
|
|
|
|
ret.edges.num = MeshTopology::GetNEdges (el.GetType());
|
|
ret.edges.ptr = mesh->GetTopology().GetElementEdgesPtr (nr);
|
|
|
|
ret.faces.num = MeshTopology::GetNFaces (el.GetType());
|
|
ret.faces.ptr = mesh->GetTopology().GetElementFacesPtr (nr);
|
|
|
|
return ret;
|
|
}
|
|
*/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
template <> DLL_HEADER void Ngx_Mesh ::
|
|
ElementTransformation<3,3> (int elnr,
|
|
const double * xi,
|
|
double * x,
|
|
double * dxdxi) const
|
|
{
|
|
Point<3> xl(xi[0], xi[1], xi[2]);
|
|
Point<3> xg;
|
|
Mat<3,3> dx;
|
|
mesh->GetCurvedElements().CalcElementTransformation (xl, elnr, xg, dx);
|
|
|
|
if (x)
|
|
for (int i = 0; i < 3; i++) x[i] = xg(i);
|
|
|
|
if (dxdxi)
|
|
for (int i=0; i<3; i++)
|
|
{
|
|
dxdxi[3*i] = dx(i,0);
|
|
dxdxi[3*i+1] = dx(i,1);
|
|
dxdxi[3*i+2] = dx(i,2);
|
|
}
|
|
}
|
|
|
|
template <> DLL_HEADER void Ngx_Mesh ::
|
|
ElementTransformation<2,3> (int elnr,
|
|
const double * xi,
|
|
double * x,
|
|
double * dxdxi) const
|
|
{
|
|
Point<2> xl(xi[0], xi[1]);
|
|
Point<3> xg;
|
|
Mat<3,2> dx;
|
|
|
|
mesh->GetCurvedElements().CalcSurfaceTransformation (xl, elnr, xg, dx);
|
|
|
|
if (x)
|
|
for (int i = 0; i < 3; i++) x[i] = xg(i);
|
|
|
|
if (dxdxi)
|
|
for (int i=0; i<3; i++)
|
|
{
|
|
dxdxi[2*i] = dx(i,0);
|
|
dxdxi[2*i+1] = dx(i,1);
|
|
}
|
|
}
|
|
|
|
|
|
template <> DLL_HEADER void Ngx_Mesh ::
|
|
ElementTransformation<2,2> (int elnr,
|
|
const double * xi,
|
|
double * x,
|
|
double * dxdxi) const
|
|
{
|
|
Point<2> xl(xi[0], xi[1]);
|
|
Point<3> xg;
|
|
Mat<3,2> dx;
|
|
|
|
mesh->GetCurvedElements().CalcSurfaceTransformation (xl, elnr, xg, dx);
|
|
|
|
if (x)
|
|
for (int i = 0; i < 2; i++) x[i] = xg(i);
|
|
|
|
if (dxdxi)
|
|
for (int i=0; i<2; i++)
|
|
{
|
|
dxdxi[2*i] = dx(i,0);
|
|
dxdxi[2*i+1] = dx(i,1);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
template <> DLL_HEADER void Ngx_Mesh ::
|
|
ElementTransformation<1,2> (int elnr,
|
|
const double * xi,
|
|
double * x,
|
|
double * dxdxi) const
|
|
{
|
|
Point<3> xg;
|
|
Vec<3> dx;
|
|
|
|
mesh->GetCurvedElements().CalcSegmentTransformation (xi[0], elnr, xg, dx);
|
|
|
|
if (x)
|
|
for (int i = 0; i < 2; i++) x[i] = xg(i);
|
|
|
|
if (dxdxi)
|
|
for (int i=0; i < 2; i++)
|
|
dxdxi[i] = dx(i);
|
|
}
|
|
|
|
|
|
|
|
template <> DLL_HEADER void Ngx_Mesh ::
|
|
ElementTransformation<1,1> (int elnr,
|
|
const double * xi,
|
|
double * x,
|
|
double * dxdxi) const
|
|
{
|
|
Point<3> xg;
|
|
Vec<3> dx;
|
|
|
|
mesh->GetCurvedElements().CalcSegmentTransformation (xi[0], elnr, xg, dx);
|
|
|
|
if (x) x[0] = xg(0);
|
|
if (dxdxi) dxdxi[0] = dx(0);
|
|
}
|
|
|
|
|
|
template <> DLL_HEADER void Ngx_Mesh ::
|
|
ElementTransformation<0,1> (int elnr,
|
|
const double * xi,
|
|
double * x,
|
|
double * dxdxi) const
|
|
{
|
|
cout << "1D not supported" << endl;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
template <> DLL_HEADER void Ngx_Mesh ::
|
|
MultiElementTransformation<3,3> (int elnr, int npts,
|
|
const double * xi, size_t sxi,
|
|
double * x, size_t sx,
|
|
double * dxdxi, size_t sdxdxi) const
|
|
{
|
|
mesh->GetCurvedElements().CalcMultiPointElementTransformation (elnr, npts, xi, sxi, x, sx, dxdxi, sdxdxi);
|
|
}
|
|
|
|
template <> DLL_HEADER void Ngx_Mesh ::
|
|
MultiElementTransformation<2,2> (int elnr, int npts,
|
|
const double * xi, size_t sxi,
|
|
double * x, size_t sx,
|
|
double * dxdxi, size_t sdxdxi) const
|
|
{
|
|
mesh->GetCurvedElements().CalcMultiPointSurfaceTransformation<2> (elnr, npts, xi, sxi, x, sx, dxdxi, sdxdxi);
|
|
}
|
|
|
|
template <> DLL_HEADER void Ngx_Mesh ::
|
|
MultiElementTransformation<2,3> (int elnr, int npts,
|
|
const double * xi, size_t sxi,
|
|
double * x, size_t sx,
|
|
double * dxdxi, size_t sdxdxi) const
|
|
{
|
|
mesh->GetCurvedElements().CalcMultiPointSurfaceTransformation<3> (elnr, npts, xi, sxi, x, sx, dxdxi, sdxdxi);
|
|
}
|
|
|
|
template <> DLL_HEADER void Ngx_Mesh ::
|
|
MultiElementTransformation<1,2> (int elnr, int npts,
|
|
const double * xi, size_t sxi,
|
|
double * x, size_t sx,
|
|
double * dxdxi, size_t sdxdxi) const
|
|
{
|
|
mesh->GetCurvedElements().CalcMultiPointSegmentTransformation<2> (elnr, npts, xi, sxi, x, sx, dxdxi, sdxdxi);
|
|
}
|
|
|
|
template <> DLL_HEADER void Ngx_Mesh ::
|
|
MultiElementTransformation<1,1> (int elnr, int npts,
|
|
const double * xi, size_t sxi,
|
|
double * x, size_t sx,
|
|
double * dxdxi, size_t sdxdxi) const
|
|
{
|
|
for (int i = 0; i < npts; i++)
|
|
ElementTransformation<1,1> (elnr, xi + i*sxi, x+i*sx, dxdxi+i*sdxdxi);
|
|
}
|
|
|
|
|
|
template <> DLL_HEADER void Ngx_Mesh ::
|
|
MultiElementTransformation<0,1> (int elnr, int npts,
|
|
const double * xi, size_t sxi,
|
|
double * x, size_t sx,
|
|
double * dxdxi, size_t sdxdxi) const
|
|
{
|
|
cout << "1D not supported" << endl;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
template <> DLL_HEADER int Ngx_Mesh :: GetNNodes<1> ()
|
|
{
|
|
return mesh->GetTopology().GetNEdges();
|
|
}
|
|
|
|
template <> DLL_HEADER int Ngx_Mesh :: GetNNodes<2> ()
|
|
{
|
|
return mesh->GetTopology().GetNFaces();
|
|
}
|
|
|
|
template <> DLL_HEADER Ng_Node<1> Ngx_Mesh :: GetNode<1> (int nr) const
|
|
{
|
|
Ng_Node<1> node;
|
|
node.vertices.ptr = mesh->GetTopology().GetEdgeVerticesPtr(nr);
|
|
return node;
|
|
}
|
|
|
|
template <> DLL_HEADER Ng_Node<2> Ngx_Mesh :: GetNode<2> (int nr) const
|
|
{
|
|
Ng_Node<2> node;
|
|
node.vertices.ptr = mesh->GetTopology().GetFaceVerticesPtr(nr);
|
|
node.vertices.nv = (node.vertices.ptr[3] == 0) ? 3 : 4;
|
|
return node;
|
|
}
|
|
|
|
|
|
template <>
|
|
DLL_HEADER int Ngx_Mesh :: FindElementOfPoint <2>
|
|
(double * p, double * lami,
|
|
bool build_searchtree,
|
|
int * const indices, int numind) const
|
|
|
|
{
|
|
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) const
|
|
|
|
{
|
|
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;
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
int link_it_nginterface_v2;
|
|
|