mirror of
https://github.com/NGSolve/netgen.git
synced 2024-12-27 06:10:34 +05:00
512 lines
14 KiB
C++
512 lines
14 KiB
C++
//
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// Read user dependent output file
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//
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#include <mystdlib.h>
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#include <myadt.hpp>
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#include <linalg.hpp>
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#include <csg.hpp>
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#include <meshing.hpp>
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#include "writeuser.hpp"
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namespace netgen
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{
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void ReadFile (Mesh & mesh,
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const string & hfilename)
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{
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cout << "Read User File" << endl;
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const char * filename = hfilename.c_str();
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char reco[100];
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int np, nbe;
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// ".surf" - mesh
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if ( (strlen (filename) > 5) &&
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strcmp (&filename[strlen (filename)-5], ".surf") == 0 )
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{
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cout << "Surface file" << endl;
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ifstream in (filename);
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in >> reco;
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in >> np;
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for (int i = 1; i <= np; i++)
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{
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Point3d p;
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in >> p.X() >> p.Y() >> p.Z();
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p.Z() *= 10;
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mesh.AddPoint (p);
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}
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mesh.ClearFaceDescriptors();
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mesh.AddFaceDescriptor (FaceDescriptor(0,1,0,0));
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in >> nbe;
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// int invert = globflags.GetDefineFlag ("invertsurfacemesh");
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for (int i = 1; i <= nbe; i++)
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{
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Element2d el;
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el.SetIndex(1);
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for (int j = 1; j <= 3; j++)
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{
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in >> el.PNum(j);
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// el.PNum(j)++;
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if (el.PNum(j) < PointIndex(1) ||
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el.PNum(j) > PointIndex(np))
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{
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cerr << "Point Number " << el.PNum(j) << " out of range 1..."
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<< np << endl;
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return;
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}
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}
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/*
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if (invert)
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swap (el.PNum(2), el.PNum(3));
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*/
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mesh.AddSurfaceElement (el);
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}
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cout << "points: " << np << " faces: " << nbe << endl;
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}
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if ( (strlen (filename) > 4) &&
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strcmp (&filename[strlen (filename)-4], ".unv") == 0 )
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{
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char reco[100];
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// int invert;
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ifstream in(filename);
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mesh.ClearFaceDescriptors();
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mesh.AddFaceDescriptor (FaceDescriptor(0,1,0,0));
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mesh.GetFaceDescriptor(1).SetBCProperty (1);
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// map from unv element nr to our element number + an index if it is vol (0), bnd(1), ...
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std::map<size_t, std::tuple<size_t, int>> element_map;
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while (in.good())
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{
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in >> reco;
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if (strcmp(reco, "-1") == 0)
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continue;
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else if (strcmp (reco, "2411") == 0)
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{
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cout << "nodes found" << endl;
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while (1)
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{
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int pi, hi;
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Point<3> p;
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in >> pi;
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if (pi == -1)
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break;
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in >> hi >> hi >> hi;
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in >> p(0) >> p(1) >> p(2);
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mesh.AddPoint (p);
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}
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cout << "read " << mesh.GetNP() << " points" << endl;
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}
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else if (strcmp (reco, "2412") == 0)
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{
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cout << "elements found" << endl;
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while (1)
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{
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int label, fe_id, phys_prop, mat_prop, color, nnodes;
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int nodes[100];
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int hi;
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in >> label;
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if (label == -1) break;
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in >> fe_id >> phys_prop >> mat_prop >> color >> nnodes;
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if (fe_id >= 11 && fe_id <= 32)
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in >> hi >> hi >> hi;
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for (int j = 0; j < nnodes; j++)
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in >> nodes[j];
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switch (fe_id)
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{
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case 41: // TRIG
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{
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Element2d el (TRIG);
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el.SetIndex (1);
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for (int j = 0; j < nnodes; j++)
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el[j] = nodes[j];
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auto nr = mesh.AddSurfaceElement (el);
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element_map[label] = std::make_tuple(nr+1, 1);
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break;
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}
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case 42: // TRIG6
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{
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Element2d el(TRIG6);
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el.SetIndex(1);
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int jj = 0;
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for(auto j : {0,2,4,3,5,1})
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el[jj++] = nodes[j];
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auto nr = mesh.AddSurfaceElement(el);
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element_map[label] = std::make_tuple(nr+1, 1);
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break;
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}
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case 111: // TET
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{
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Element el (TET);
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el.SetIndex (1);
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for (int j = 0; j < nnodes; j++)
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el[j] = nodes[j];
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auto nr = mesh.AddVolumeElement (el);
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element_map[label] = std::make_tuple(nr+1, 0);
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break;
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}
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case 118: // TET10
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{
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Element el(TET10);
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el.SetIndex(1);
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int jj = 0;
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for(auto j : {0,2,4,9,1,5,6,3,7,8})
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el[jj++] = nodes[j];
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auto nr = mesh.AddVolumeElement(el);
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element_map[label] = std::make_tuple(nr+1, 0);
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break;
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}
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}
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}
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cout << mesh.GetNE() << " elements found" << endl;
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cout << mesh.GetNSE() << " surface elements found" << endl;
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}
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else if(strcmp (reco, "2467") == 0)
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{
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int matnr = 1;
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cout << "Groups found" << endl;
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while(in.good())
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{
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int len;
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string name;
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in >> len;
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if(len == -1)
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break;
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for(int i=0; i < 7; i++)
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in >> len;
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in >> name;
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cout << len << " element are in group " << name << endl;
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int hi, index;
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int fdnr;
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bool is_boundary=false;
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// use first element to determine if boundary or volume
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in >> hi >> index >> hi >> hi;
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if (get<1>(element_map[index]) == 1)
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{
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is_boundary=true;
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}
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cout << "Group " << name << (is_boundary ? " is boundary" : " is volume") << endl;
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if(is_boundary)
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{
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int bcpr = mesh.GetNFD()+1;
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fdnr = mesh.AddFaceDescriptor(FaceDescriptor(bcpr, 0,0,0));
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mesh.GetFaceDescriptor(fdnr).SetBCProperty(bcpr+1);
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mesh.SetBCName(bcpr, name);
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mesh.SurfaceElement(get<0>(element_map[index])).SetIndex(fdnr);
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}
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else
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{
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mesh.SetMaterial(++matnr, name);
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mesh.VolumeElement(get<0>(element_map[index])).SetIndex(matnr);
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}
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for(int i=0; i<len-1; i++)
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{
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in >> hi >> index >> hi >> hi;
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if(is_boundary)
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mesh.SurfaceElement(get<0>(element_map[index])).SetIndex(fdnr);
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else
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mesh.VolumeElement(get<0>(element_map[index])).SetIndex(matnr);
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}
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}
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}
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else
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{
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cout << "Do not know data field type " << reco << ", skipping it" << endl;
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while(in.good())
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{
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in >> reco;
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if(strcmp(reco, "-1") == 0)
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break;
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}
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}
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}
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Point3d pmin, pmax;
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mesh.ComputeNVertices();
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mesh.RebuildSurfaceElementLists();
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mesh.GetBox (pmin, pmax);
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cout << "bounding-box = " << pmin << "-" << pmax << endl;
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}
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// fepp format2d:
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if ( (strlen (filename) > 7) &&
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strcmp (&filename[strlen (filename)-7], ".mesh2d") == 0 )
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{
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cout << "Reading FEPP2D Mesh" << endl;
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char buf[100];
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int np, ne, nseg, i, j;
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ifstream in (filename);
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in >> buf;
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in >> nseg;
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for (i = 1; i <= nseg; i++)
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{
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int bound, p1, p2;
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in >> bound >> p1 >> p2;
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// forget them
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}
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in >> ne;
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for (i = 1; i <= ne; i++)
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{
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int mat, nelp;
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in >> mat >> nelp;
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Element2d el (nelp == 3 ? TRIG : QUAD);
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el.SetIndex (mat);
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for (j = 1; j <= nelp; j++)
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in >> el.PNum(j);
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mesh.AddSurfaceElement (el);
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}
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in >> np;
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for (i = 1; i <= np; i++)
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{
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Point3d p(0,0,0);
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in >> p.X() >> p.Y();
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mesh.AddPoint (p);
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}
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}
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else if ( (strlen (filename) > 5) &&
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strcmp (&filename[strlen (filename)-5], ".mesh") == 0 )
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{
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cout << "Reading Neutral Format" << endl;
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int np, ne, nse, i, j;
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ifstream in (filename);
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in >> np;
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if (in.good())
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{
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// file starts with an integer
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for (i = 1; i <= np; i++)
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{
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Point3d p(0,0,0);
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in >> p.X() >> p.Y() >> p.Z();
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mesh.AddPoint (p);
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}
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in >> ne;
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for (i = 1; i <= ne; i++)
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{
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int mat;
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in >> mat;
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Element el (4);
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el.SetIndex (mat);
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for (j = 1; j <= 4; j++)
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in >> el.PNum(j);
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mesh.AddVolumeElement (el);
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}
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mesh.AddFaceDescriptor (FaceDescriptor (1, 1, 0, 0));
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int nfd = 1;
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in >> nse;
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for (i = 1; i <= nse; i++)
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{
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int mat; // , nelp;
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in >> mat;
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Element2d el (TRIG);
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el.SetIndex (mat);
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while(nfd<mat)
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{
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++nfd;
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mesh.AddFaceDescriptor(FaceDescriptor(nfd,nfd,0,0));
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}
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for (j = 1; j <= 3; j++)
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in >> el.PNum(j);
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mesh.AddSurfaceElement (el);
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}
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}
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else
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{
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char buf[100];
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in.clear();
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do
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{
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in >> buf;
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cout << "buf = " << buf << endl;
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if (strcmp (buf, "points") == 0)
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{
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in >> np;
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cout << "np = " << np << endl;
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}
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}
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while (in.good());
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}
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}
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if ( (strlen (filename) > 4) &&
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strcmp (&filename[strlen (filename)-4], ".emt") == 0 )
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{
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ifstream inemt (filename);
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string pktfile = filename;
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int len = strlen (filename);
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pktfile[len-3] = 'p';
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pktfile[len-2] = 'k';
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pktfile[len-1] = 't';
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cout << "pktfile = " << pktfile << endl;
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int np, nse, i;
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int bcprop;
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ifstream inpkt (pktfile.c_str());
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inpkt >> np;
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Array<double> values(np);
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for (i = 1; i <= np; i++)
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{
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Point3d p(0,0,0);
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inpkt >> p.X() >> p.Y() >> p.Z()
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>> bcprop >> values.Elem(i);
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mesh.AddPoint (p);
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}
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mesh.ClearFaceDescriptors();
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mesh.AddFaceDescriptor (FaceDescriptor(0,1,0,0));
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mesh.GetFaceDescriptor(1).SetBCProperty (1);
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mesh.AddFaceDescriptor (FaceDescriptor(0,1,0,0));
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mesh.GetFaceDescriptor(2).SetBCProperty (2);
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mesh.AddFaceDescriptor (FaceDescriptor(0,1,0,0));
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mesh.GetFaceDescriptor(3).SetBCProperty (3);
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mesh.AddFaceDescriptor (FaceDescriptor(0,1,0,0));
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mesh.GetFaceDescriptor(4).SetBCProperty (4);
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mesh.AddFaceDescriptor (FaceDescriptor(0,1,0,0));
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mesh.GetFaceDescriptor(5).SetBCProperty (5);
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int p1, p2, p3;
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double value;
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inemt >> nse;
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for (i = 1; i <= nse; i++)
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{
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inemt >> p1 >> p2 >> p3 >> bcprop >> value;
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if (bcprop < 1 || bcprop > 4)
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cerr << "bcprop out of range, bcprop = " << bcprop << endl;
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p1++;
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p2++;
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p3++;
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if (p1 < 1 || p1 > np || p2 < 1 || p2 > np || p3 < 1 || p3 > np)
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{
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cout << "p1 = " << p1 << " p2 = " << p2 << " p3 = " << p3 << endl;
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}
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if (i > 110354) Swap (p2, p3);
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if (mesh.Point(p1)(0) < 0.25)
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Swap (p2,p3);
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Element2d el(TRIG);
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if (bcprop == 1)
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{
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if (values.Get(p1) < -69999)
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el.SetIndex(1);
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else
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el.SetIndex(2);
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}
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else
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el.SetIndex(3);
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el.PNum(1) = p1;
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el.PNum(2) = p2;
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el.PNum(3) = p3;
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mesh.AddSurfaceElement (el);
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}
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ifstream incyl ("ngusers/guenter/cylinder.surf");
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int npcyl, nsecyl;
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incyl >> npcyl;
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cout << "npcyl = " << npcyl << endl;
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for (i = 1; i <= npcyl; i++)
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{
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Point3d p(0,0,0);
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incyl >> p.X() >> p.Y() >> p.Z();
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mesh.AddPoint (p);
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}
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incyl >> nsecyl;
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cout << "nsecyl = " << nsecyl << endl;
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for (i = 1; i <= nsecyl; i++)
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{
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incyl >> p1 >> p2 >> p3;
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p1 += np;
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p2 += np;
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p3 += np;
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Element2d el(TRIG);
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el.SetIndex(5);
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el.PNum(1) = p1;
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el.PNum(2) = p2;
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el.PNum(3) = p3;
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mesh.AddSurfaceElement (el);
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}
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}
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// .tet mesh
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if ( (strlen (filename) > 4) &&
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strcmp (&filename[strlen (filename)-4], ".tet") == 0 )
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{
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ReadTETFormat (mesh, filename);
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}
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// .fnf mesh (FNF - PE neutral format)
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if ( (strlen (filename) > 4) &&
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strcmp (&filename[strlen (filename)-4], ".fnf") == 0 )
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{
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ReadFNFFormat (mesh, filename);
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}
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}
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}
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