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808 lines
19 KiB
C++
808 lines
19 KiB
C++
//
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// Write 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 <geometry2d.hpp>
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#include <meshing.hpp>
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#include "writeuser.hpp"
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#include "../general/gzstream.h"
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namespace netgen
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{
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extern MeshingParameters mparam;
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Array<UserFormatRegister::UserFormatEntry> UserFormatRegister::entries;
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std::map<string, int> UserFormatRegister::format_to_entry_index;
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void RegisterUserFormats (NgArray<const char*> & names,
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NgArray<const char*> & extensions)
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{
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for (const auto & entry : UserFormatRegister::entries)
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{
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names.Append (entry.format.c_str());
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extensions.Append (entry.extensions[0].c_str());
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}
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}
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bool WriteUserFormat (const string & format,
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const Mesh & mesh,
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const filesystem::path & filename)
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{
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if(!UserFormatRegister::HaveFormat(format))
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return true;
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const auto entry = UserFormatRegister::Get(format);
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if(!entry.write)
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return true;
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(*entry.write)(mesh, filename);
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return false;
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}
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/*
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* Neutral mesh format
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* points, elements, surface elements
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*/
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void WriteNeutralFormat (const Mesh & mesh,
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const filesystem::path & filename)
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{
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cout << "write neutral, new" << 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 nseg = mesh.GetNSeg();
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int i, j;
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int inverttets = mparam.inverttets;
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int invertsurf = mparam.inverttrigs;
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ofstream outfile (filename);
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outfile.precision(6);
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outfile.setf (ios::fixed, ios::floatfield);
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outfile.setf (ios::showpoint);
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outfile << np << "\n";
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for (i = 1; i <= np; i++)
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{
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const Point3d & p = mesh.Point(i);
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outfile.width(10);
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outfile << p.X() << " ";
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outfile.width(9);
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outfile << p.Y() << " ";
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if (mesh.GetDimension() == 3)
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{
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outfile.width(9);
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outfile << p.Z();
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}
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outfile << "\n";
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}
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if (mesh.GetDimension() == 3)
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{
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outfile << ne << "\n";
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for (i = 1; i <= ne; i++)
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{
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Element el = mesh.VolumeElement(i);
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if (inverttets)
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el.Invert();
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outfile.width(4);
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outfile << el.GetIndex() << " ";
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for (j = 1; j <= el.GetNP(); j++)
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{
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outfile << " ";
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outfile.width(8);
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outfile << el.PNum(j);
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}
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outfile << "\n";
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}
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}
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outfile << nse << "\n";
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for (i = 1; i <= nse; i++)
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{
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Element2d el = mesh.SurfaceElement(i);
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if (invertsurf)
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el.Invert();
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outfile.width(4);
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outfile << mesh.GetFaceDescriptor (el.GetIndex()).BCProperty() << " ";
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for (j = 1; j <= el.GetNP(); j++)
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{
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outfile << " ";
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outfile.width(8);
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outfile << el.PNum(j);
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}
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outfile << "\n";
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}
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if (mesh.GetDimension() == 2)
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{
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outfile << nseg << "\n";
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for (int i = 1; i <= nseg; i++)
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{
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const Segment & seg = mesh.LineSegment(i);
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outfile.width(4);
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outfile << seg.si << " ";
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for (int j = 0; j < seg.GetNP(); j++)
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{
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outfile << " ";
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outfile.width(8);
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outfile << seg[j];
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}
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/*
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outfile << " ";
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outfile.width(8);
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outfile << seg[0];
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outfile << " ";
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outfile.width(8);
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outfile << seg[1];
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if (seg[2] != -1)
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{
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outfile.width(8);
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outfile << seg[2];
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}
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*/
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outfile << "\n";
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}
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}
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}
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void WriteSurfaceFormat (const Mesh & mesh,
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const filesystem::path & filename)
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{
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// surface mesh
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int i, j;
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cout << "Write Surface Mesh" << endl;
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ofstream outfile (filename);
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outfile << "surfacemesh" << endl;
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outfile << mesh.GetNP() << endl;
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for (i = 1; i <= mesh.GetNP(); i++)
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{
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for (j = 0; j < 3; j++)
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{
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outfile.width(10);
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outfile << mesh.Point(i)(j) << " ";
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}
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outfile << endl;
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}
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outfile << mesh.GetNSE() << endl;
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for (i = 1; i <= mesh.GetNSE(); i++)
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{
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for (j = 1; j <= 3; j++)
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{
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outfile.width(8);
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outfile << mesh.SurfaceElement(i).PNum(j);
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}
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outfile << endl;
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}
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}
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/*
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* save surface mesh as STL file
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*/
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void WriteSTLFormat (const Mesh & mesh,
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const filesystem::path & filename)
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{
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cout << "\nWrite STL Surface Mesh" << endl;
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auto ext = filename.extension();
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ostream *outfile;
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if(ext == ".gz")
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outfile = new ogzstream(filename);
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else
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outfile = new ofstream(filename);
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int i;
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outfile->precision(10);
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*outfile << "solid" << endl;
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for (i = 1; i <= mesh.GetNSE(); i++)
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{
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*outfile << "facet normal ";
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const Point3d& p1 = mesh.Point(mesh.SurfaceElement(i).PNum(1));
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const Point3d& p2 = mesh.Point(mesh.SurfaceElement(i).PNum(2));
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const Point3d& p3 = mesh.Point(mesh.SurfaceElement(i).PNum(3));
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Vec3d normal = Cross(p2-p1,p3-p1);
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if (normal.Length() != 0)
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{
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normal /= (normal.Length());
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}
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*outfile << normal.X() << " " << normal.Y() << " " << normal.Z() << "\n";
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*outfile << "outer loop\n";
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*outfile << "vertex " << p1.X() << " " << p1.Y() << " " << p1.Z() << "\n";
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*outfile << "vertex " << p2.X() << " " << p2.Y() << " " << p2.Z() << "\n";
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*outfile << "vertex " << p3.X() << " " << p3.Y() << " " << p3.Z() << "\n";
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*outfile << "endloop\n";
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*outfile << "endfacet\n";
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}
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*outfile << "endsolid" << endl;
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}
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/*
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* Philippose - 16 August 2010
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* Save surface mesh as STL file
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* with a separate solid definition
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* for each face
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* - This helps in splitting up the
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* STL into named boundary faces
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* when using a third-party mesher
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*/
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void WriteSTLExtFormat (const Mesh & mesh,
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const filesystem::path & filename)
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{
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cout << "\nWrite STL Surface Mesh (with separated boundary faces)" << endl;
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auto ext = filename.extension();
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ostream *outfile;
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if(ext == ".gz")
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outfile = new ogzstream(filename);
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else
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outfile = new ofstream(filename);
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outfile->precision(10);
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int numBCs = 0;
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NgArray<int> faceBCs;
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TABLE<int> faceBCMapping;
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faceBCs.SetSize(mesh.GetNFD());
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faceBCMapping.SetSize(mesh.GetNFD());
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faceBCs = -1;
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// Collect the BC numbers used in the mesh
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for(int faceNr = 1; faceNr <= mesh.GetNFD(); faceNr++)
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{
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int bcNum = mesh.GetFaceDescriptor(faceNr).BCProperty();
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if(faceBCs.Pos(bcNum) < 0)
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{
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numBCs++;
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faceBCs.Set(numBCs,bcNum);
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faceBCMapping.Add1(numBCs,faceNr);
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}
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else
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{
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faceBCMapping.Add1(faceBCs.Pos(bcNum)+1,faceNr);
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}
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}
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faceBCs.SetSize(numBCs);
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faceBCMapping.ChangeSize(numBCs);
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// Now actually write the data to file
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for(int bcInd = 1; bcInd <= faceBCs.Size(); bcInd++)
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{
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*outfile << "solid Boundary_" << faceBCs.Elem(bcInd) << "\n";
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for(int faceNr = 1;faceNr <= faceBCMapping.EntrySize(bcInd); faceNr++)
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{
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Array<SurfaceElementIndex> faceSei;
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mesh.GetSurfaceElementsOfFace(faceBCMapping.Get(bcInd,faceNr),faceSei);
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for (int i = 0; i < faceSei.Size(); i++)
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{
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*outfile << "facet normal ";
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const Point3d& p1 = mesh.Point(mesh[faceSei[i]].PNum(1));
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const Point3d& p2 = mesh.Point(mesh[faceSei[i]].PNum(2));
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const Point3d& p3 = mesh.Point(mesh[faceSei[i]].PNum(3));
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Vec3d normal = Cross(p2-p1,p3-p1);
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if (normal.Length() != 0)
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{
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normal /= (normal.Length());
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}
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*outfile << normal.X() << " " << normal.Y() << " " << normal.Z() << "\n";
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*outfile << "outer loop\n";
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*outfile << "vertex " << p1.X() << " " << p1.Y() << " " << p1.Z() << "\n";
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*outfile << "vertex " << p2.X() << " " << p2.Y() << " " << p2.Z() << "\n";
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*outfile << "vertex " << p3.X() << " " << p3.Y() << " " << p3.Z() << "\n";
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*outfile << "endloop\n";
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*outfile << "endfacet\n";
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}
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}
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*outfile << "endsolid Boundary_" << faceBCs.Elem(bcInd) << "\n";
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}
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}
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/*
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*
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* write surface mesh as VRML file
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*
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*/
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void WriteVRMLFormat (const Mesh & mesh,
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bool faces,
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const filesystem::path & filename)
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{
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if (faces)
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{
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// Output in VRML, IndexedFaceSet is used
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// Bartosz Sawicki <sawickib@ee.pw.edu.pl>
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int np = mesh.GetNP();
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int nse = mesh.GetNSE();
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int i, j;
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ofstream outfile (filename);
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outfile.precision(6);
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outfile.setf (ios::fixed, ios::floatfield);
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outfile.setf (ios::showpoint);
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outfile << "#VRML V2.0 utf8 \n"
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"Background {\n"
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" skyColor [1 1 1]\n"
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" groundColor [1 1 1]\n"
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"}\n"
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"Group{ children [\n"
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"Shape{ \n"
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"appearance Appearance { material Material { }} \n"
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"geometry IndexedFaceSet { \n"
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"coord Coordinate { point [ \n";
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for (i = 1; i <= np; i++)
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{
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const Point3d & p = mesh.Point(i);
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outfile.width(10);
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outfile << p.X() << " ";
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outfile << p.Y() << " ";
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outfile << p.Z() << " \n";
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}
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outfile << " ] } \n"
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"coordIndex [ \n";
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for (i = 1; i <= nse; i++)
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{
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const Element2d & el = mesh.SurfaceElement(i);
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for (j = 1; j <= 3; j++)
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{
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outfile.width(8);
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outfile << el.PNum(j)-1;
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}
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outfile << " -1 \n";
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}
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outfile << " ] \n";
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//define number and RGB definitions of colors
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outfile << "color Color { color [1 0 0, 0 1 0, 0 0 1, 1 1 0]} \n"
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"colorIndex [\n";
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for (i = 1; i <= nse; i++)
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{
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outfile << mesh.GetFaceDescriptor(mesh.SurfaceElement(i).GetIndex ()).BCProperty();
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outfile << endl;
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}
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outfile << " ] \n"
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"colorPerVertex FALSE \n"
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"creaseAngle 0 \n"
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"solid FALSE \n"
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"ccw FALSE \n"
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"convex TRUE \n"
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"} } # end of Shape\n"
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"] }\n";
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} /* end of VRMLFACES */
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else
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{
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// Output in VRML, IndexedLineSet is used
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// Bartosz Sawicki <sawickib@ee.pw.edu.pl>
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int np = mesh.GetNP();
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int nse = mesh.GetNSE();
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int i, j;
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ofstream outfile (filename);
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outfile.precision(6);
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outfile.setf (ios::fixed, ios::floatfield);
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outfile.setf (ios::showpoint);
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outfile << "#VRML V2.0 utf8 \n"
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"Background {\n"
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" skyColor [1 1 1]\n"
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" groundColor [1 1 1]\n"
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"}\n"
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"Group{ children [\n"
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"Shape{ \n"
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"appearance Appearance { material Material { }} \n"
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"geometry IndexedLineSet { \n"
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"coord Coordinate { point [ \n";
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for (i = 1; i <= np; i++)
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{
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const Point3d & p = mesh.Point(i);
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outfile.width(10);
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outfile << p.X() << " ";
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outfile << p.Y() << " ";
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outfile << p.Z() << " \n";
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}
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outfile << " ] } \n"
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"coordIndex [ \n";
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for (i = 1; i <= nse; i++)
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{
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const Element2d & el = mesh.SurfaceElement(i);
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for (j = 1; j <= 3; j++)
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{
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outfile.width(8);
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outfile << el.PNum(j)-1;
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}
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outfile.width(8);
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outfile << el.PNum(1)-1;
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outfile << " -1 \n";
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}
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outfile << " ] \n";
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/* Uncomment if you want color mesh
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outfile << "color Color { color [1 1 1, 0 1 0, 0 0 1, 1 1 0]} \n"
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"colorIndex [\n";
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for (i = 1; i <= nse; i++)
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{
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outfile << mesh.GetFaceDescriptor(mesh.SurfaceElement(i).GetIndex ()).BCProperty();
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outfile << endl;
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}
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outfile << " ] \n"
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*/
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outfile << "colorPerVertex FALSE \n"
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"} } #end of Shape\n"
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"] } \n";
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}
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}
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void WriteVRMLFormatLineset (const Mesh & mesh, const filesystem::path & filename)
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{
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WriteVRMLFormat(mesh, false, filename);
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}
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void WriteVRMLFormatFaceset (const Mesh & mesh, const filesystem::path & filename)
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{
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WriteVRMLFormat(mesh, true, filename);
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}
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/*
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* FEPP .. a finite element package developed at University Linz, Austria
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*/
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void WriteFEPPFormat (const Mesh & mesh,
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const filesystem::path & filename)
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{
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ofstream outfile (filename);
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if (mesh.GetDimension() == 3)
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{
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// output for FEPP
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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 ns = mesh.GetNFD();
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int i, j;
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outfile.precision(5);
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outfile.setf (ios::fixed, ios::floatfield);
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outfile.setf (ios::showpoint);
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outfile << "volumemesh4" << endl;
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outfile << nse << endl;
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for (i = 1; i <= nse; i++)
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{
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const Element2d & el = mesh.SurfaceElement(i);
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// int facenr = mesh.facedecoding.Get(el.GetIndex()).surfnr;
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outfile.width(4);
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outfile << el.GetIndex() << " ";
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outfile.width(4);
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// outfile << mesh.GetFaceDescriptor(el.GetIndex()).BCProperty() << " ";
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outfile << mesh.GetFaceDescriptor(el.GetIndex()).BCProperty() << " ";
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outfile.width(4);
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outfile << el.GetNP() << " ";
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for (j = 1; j <= el.GetNP(); j++)
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{
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outfile.width(8);
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outfile << el.PNum(j);
|
|
}
|
|
outfile << "\n";
|
|
}
|
|
|
|
|
|
outfile << ne << "\n";
|
|
for (i = 1; i <= ne; i++)
|
|
{
|
|
const Element & el = mesh.VolumeElement(i);
|
|
outfile.width(4);
|
|
outfile << el.GetIndex() << " ";
|
|
outfile.width(4);
|
|
outfile << el.GetNP() << " ";
|
|
for (j = 1; j <= el.GetNP(); j++)
|
|
{
|
|
outfile.width(8);
|
|
outfile << el.PNum(j);
|
|
}
|
|
outfile << "\n";
|
|
}
|
|
|
|
outfile << np << "\n";
|
|
for (i = 1; i <= np; i++)
|
|
{
|
|
const Point3d & p = mesh.Point(i);
|
|
|
|
outfile.width(10);
|
|
outfile << p.X() << " ";
|
|
outfile.width(9);
|
|
outfile << p.Y() << " ";
|
|
outfile.width(9);
|
|
outfile << p.Z() << "\n";
|
|
}
|
|
|
|
/*
|
|
if (typ == WRITE_FEPPML)
|
|
{
|
|
int nbn = mesh.mlbetweennodes.Size();
|
|
outfile << nbn << "\n";
|
|
for (i = 1; i <= nbn; i++)
|
|
outfile << mesh.mlbetweennodes.Get(i).I1() << " "
|
|
<< mesh.mlbetweennodes.Get(i).I2() << "\n";
|
|
|
|
|
|
// int ncon = mesh.connectedtonode.Size();
|
|
// outfile << ncon << "\n";
|
|
// for (i = 1; i <= ncon; i++)
|
|
// outfile << i << " " << mesh.connectedtonode.Get(i) << endl;
|
|
}
|
|
*/
|
|
|
|
/*
|
|
// write CSG surfaces
|
|
if (&geom && geom.GetNSurf() >= ns)
|
|
{
|
|
outfile << ns << endl;
|
|
for (i = 1; i <= ns; i++)
|
|
geom.GetSurface(mesh.GetFaceDescriptor(i).SurfNr())->Print(outfile);
|
|
}
|
|
else
|
|
*/
|
|
outfile << "0" << endl;
|
|
}
|
|
|
|
|
|
else
|
|
|
|
{ // 2D fepp format
|
|
|
|
;
|
|
/*
|
|
extern SplineGeometry2d * geometry2d;
|
|
if (geometry2d)
|
|
Save2DMesh (mesh, &geometry2d->GetSplines(), outfile);
|
|
else
|
|
Save2DMesh (mesh, 0, outfile);
|
|
*/
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
* Edge element mesh format
|
|
* points, elements, edges
|
|
*/
|
|
|
|
void WriteEdgeElementFormat (const Mesh & mesh,
|
|
const filesystem::path & filename)
|
|
{
|
|
cout << "write edge element format" << endl;
|
|
|
|
const MeshTopology * top = &mesh.GetTopology();
|
|
int npoints = mesh.GetNP();
|
|
int nelements = mesh.GetNE();
|
|
int nsurfelem = mesh.GetNSE();
|
|
int nedges = top->GetNEdges();
|
|
int i, j;
|
|
|
|
int inverttets = mparam.inverttets;
|
|
int invertsurf = mparam.inverttrigs;
|
|
NgArray<int> edges;
|
|
|
|
ofstream outfile (filename);
|
|
|
|
outfile.precision(6);
|
|
outfile.setf (ios::fixed, ios::floatfield);
|
|
outfile.setf (ios::showpoint);
|
|
|
|
|
|
// vertices with coordinates
|
|
outfile << npoints << "\n";
|
|
for (i = 1; i <= npoints; i++)
|
|
{
|
|
const Point3d & p = mesh.Point(i);
|
|
|
|
outfile.width(10);
|
|
outfile << p.X() << " ";
|
|
outfile.width(9);
|
|
outfile << p.Y() << " ";
|
|
outfile.width(9);
|
|
outfile << p.Z() << "\n";
|
|
}
|
|
|
|
// element - edge - list
|
|
outfile << nelements << " " << nedges << "\n";
|
|
for (i = 1; i <= nelements; i++)
|
|
{
|
|
Element el = mesh.VolumeElement(i);
|
|
if (inverttets)
|
|
el.Invert();
|
|
outfile.width(4);
|
|
outfile << el.GetIndex() << " ";
|
|
outfile.width(8);
|
|
outfile << el.GetNP();
|
|
for (j = 1; j <= el.GetNP(); j++)
|
|
{
|
|
outfile << " ";
|
|
outfile.width(8);
|
|
outfile << el.PNum(j);
|
|
}
|
|
|
|
// top->GetElementEdges(i,edges);
|
|
auto eledges = top->GetEdges(ElementIndex(i-1));
|
|
outfile << endl << " ";
|
|
outfile.width(8);
|
|
outfile << eledges.Size();
|
|
for (j=1; j <= eledges.Size(); j++)
|
|
{
|
|
outfile << " ";
|
|
outfile.width(8);
|
|
outfile << eledges[j-1]+1;
|
|
}
|
|
outfile << "\n";
|
|
|
|
// orientation:
|
|
top->GetElementEdgeOrientations(i,edges);
|
|
outfile << " ";
|
|
for (j=1; j <= edges.Size(); j++)
|
|
{
|
|
outfile << " ";
|
|
outfile.width(8);
|
|
outfile << edges[j-1];
|
|
}
|
|
outfile << "\n";
|
|
}
|
|
|
|
// surface element - edge - list (with boundary conditions)
|
|
outfile << nsurfelem << "\n";
|
|
for (i = 1; i <= nsurfelem; i++)
|
|
{
|
|
Element2d el = mesh.SurfaceElement(i);
|
|
if (invertsurf)
|
|
el.Invert();
|
|
outfile.width(4);
|
|
outfile << mesh.GetFaceDescriptor (el.GetIndex()).BCProperty() << " ";
|
|
outfile.width(8);
|
|
outfile << el.GetNP();
|
|
for (j = 1; j <= el.GetNP(); j++)
|
|
{
|
|
outfile << " ";
|
|
outfile.width(8);
|
|
outfile << el.PNum(j);
|
|
}
|
|
|
|
top->GetSurfaceElementEdges(i,edges);
|
|
outfile << endl << " ";
|
|
outfile.width(8);
|
|
outfile << edges.Size();
|
|
for (j=1; j <= edges.Size(); j++)
|
|
{
|
|
outfile << " ";
|
|
outfile.width(8);
|
|
outfile << edges[j-1];
|
|
}
|
|
outfile << "\n";
|
|
}
|
|
|
|
|
|
// int v1, v2;
|
|
// edge - vertex - list
|
|
outfile << nedges << "\n";
|
|
for (i=1; i <= nedges; i++)
|
|
{
|
|
// top->GetEdgeVertices(i,v1,v2);
|
|
auto [v1,v2] = top->GetEdgeVertices(i-1);
|
|
outfile.width(4);
|
|
outfile << v1;
|
|
outfile << " ";
|
|
outfile.width(8);
|
|
outfile << v2 << endl;
|
|
}
|
|
}
|
|
|
|
static RegisterUserFormat reg_neutral("Neutral Format", {".mesh"}, ReadFile, WriteNeutralFormat);
|
|
static RegisterUserFormat reg_surface("Surface Mesh Format", {".mesh", ".surf"} ,ReadFile, WriteSurfaceFormat);
|
|
static RegisterUserFormat reg_stl ("STL Format", {".stl", ".stlb"}, ReadFile, WriteSTLFormat);
|
|
static RegisterUserFormat reg_stlx ("STL Extended Format", {".stl", ".stlb"}, nullopt, WriteSTLExtFormat);
|
|
static RegisterUserFormat reg_vrml ("VRML Format", {".*"}, nullopt, WriteVRMLFormatLineset);
|
|
static RegisterUserFormat reg_vrml_faces ("VRML Format Faces", {".*"}, nullopt, WriteVRMLFormatFaceset);
|
|
static RegisterUserFormat reg_fepp ("Fepp Format", {"*"}, nullopt, WriteFEPPFormat);
|
|
static RegisterUserFormat reg_edgeelement ("EdgeElement Format", {"*"}, nullopt, WriteEdgeElementFormat);
|
|
|
|
}
|
|
|