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70 lines
1.8 KiB
C++
70 lines
1.8 KiB
C++
//
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// Write dolfin file
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//
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// by
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// Kent-Andre Mardal <kent-and@simula.no>
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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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namespace netgen
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{
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#include "writeuser.hpp"
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void WriteDolfinFormat (const Mesh & mesh, const filesystem::path & filename)
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{
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cout << "start writing dolfin export" << endl;
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int np = mesh.GetNP();
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int ne = mesh.GetNE();
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// int nse = mesh.GetNSE();
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int nsd = mesh.GetDimension();
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// int invertsurf = mparam.inverttrigs;
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// int i, j;
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ofstream outfile (filename);
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// char str[100];
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outfile.precision(8);
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outfile.setf (ios::fixed, ios::floatfield);
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outfile.setf (ios::showpoint);
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if ( nsd == 3) {
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outfile << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" <<endl;
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outfile << ""<<endl;
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outfile << "<dolfin xmlns:dolfin=\"http://www.phi.chalmers.se/dolfin/\">"<<endl;
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outfile << " <mesh celltype=\"tetrahedron\" dim=\"3\">" <<endl;
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outfile << " <vertices size=\""<<np<<"\">"<<endl;
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for (int i = 1; i <= np; i++) {
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const Point3d & p = mesh.Point(i);
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outfile << " <vertex index=\""<<i-1<<"\" x=\""<<p.X()<<"\" y=\""<<p.Y()<<"\" z=\""<<p.Z()<<"\"/>"<<endl;
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}
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outfile << " </vertices>"<<endl;
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outfile << " <cells size=\""<<ne<<"\">"<<endl;
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for (int i = 1; i <= ne; i++) {
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const Element & el = mesh.VolumeElement(i);
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outfile << " <tetrahedron index=\""<<i-1<<"\" v0=\""<<el.PNum(1)-1<<"\" v1=\""<<el.PNum(2)-1<<"\" v2=\""<<el.PNum(3)-1<<"\" v3=\""<<el.PNum(4)-1<<"\"/>"<<endl;
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}
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outfile << " </cells>"<<endl;
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}
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outfile << " </mesh>"<<endl;
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outfile << "</dolfin>"<<endl;
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cout << "done writing dolfin export" << endl;
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}
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}
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