mirror of
https://github.com/NGSolve/netgen.git
synced 2024-09-22 17:52:50 +05:00
326 lines
8.7 KiB
C++
326 lines
8.7 KiB
C++
//
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// Write diffpack file
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//
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// by
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// Bartosz Sawicki <sawickib@ee.pw.edu.pl>
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// extended by
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// Jacques Lechelle <jacques.lechelle@wanadoo.fr>
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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 WriteDiffPackFormat (const Mesh & mesh,
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const filesystem::path & filename)
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{
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// double scale = globflags.GetNumFlag ("scale", 1);
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double scale = 1;
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ofstream outfile(filename);
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outfile.precision(14);
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if (mesh.GetDimension() == 3)
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{
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// Output compatible to Diffpack grid format
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// Bartosz Sawicki <sawickib@ee.pw.edu.pl>
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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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NgArray <int> BIname;
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NgArray <int> BCsinpoint;
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int i, j, k, l;
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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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const Element & eldummy = mesh.VolumeElement((int)1);
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outfile << "\n\n"
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"Finite element mesh (GridFE):\n\n"
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" Number of space dim. = 3\n"
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" Number of elements = " << ne << "\n"
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" Number of nodes = " << np << "\n\n"
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" All elements are of the same type : dpTRUE\n"
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" Max number of nodes in an element: "<< eldummy.GetNP() << "\n"
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" Only one subdomain : dpFALSE\n"
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" Lattice data ? 0\n\n\n\n";
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for (i = 1; i <= nse; i++)
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{
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int BI=mesh.GetFaceDescriptor(mesh.SurfaceElement(i).GetIndex()).BCProperty();
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int nbi=BIname.Size();
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int found=0;
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for (j = 1; j <= nbi; j++)
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if(BI == BIname.Get(j)) found = 1;
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if( ! found ) BIname.Append(BI);
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}
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outfile << " " << BIname.Size() << " Boundary indicators: ";
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for (i =1 ; i <= BIname.Size(); i++)
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outfile << BIname.Get(i) << " ";
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outfile << "\n\n\n";
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outfile << " Nodal coordinates and nodal boundary indicators,\n"
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" the columns contain:\n"
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" - node number\n"
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" - coordinates\n"
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" - no of boundary indicators that are set (ON)\n"
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" - the boundary indicators that are set (ON) if any.\n"
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"#\n";
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// setup point-to-surfaceelement table
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TABLE<SurfaceElementIndex, PointIndex::BASE> point2sel(np);
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for (SurfaceElementIndex sei = 0; sei < nse; sei++)
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{
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const Element2d & el = mesh[sei];
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for (int j = 0; j < el.GetNP(); j++)
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point2sel.Add (el[j], sei);
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}
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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(12);
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outfile << i << " (";
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outfile.width(16);
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outfile << p.X()/scale << ", ";
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outfile.width(16);
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outfile << p.Y()/scale << ", ";
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outfile.width(16);
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outfile << p.Z()/scale << ") ";
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if(mesh[PointIndex(i)].Type() != INNERPOINT)
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{
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BCsinpoint.DeleteAll();
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/*
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for (j = 1; j <= nse; j++)
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*/
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NgFlatArray<SurfaceElementIndex> sels = point2sel[i];
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for (int jj = 0; jj < sels.Size(); jj++)
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{
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for (k = 1; k <= mesh[sels[jj]].GetNP(); k++)
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{
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if(mesh[sels[jj]].PNum(k)==i)
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{
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int BC=mesh.GetFaceDescriptor(mesh[sels[jj]].GetIndex()).BCProperty();
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int nbcsp=BCsinpoint.Size();
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int found = 0;
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for (l = 1; l <= nbcsp; l++)
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if(BC == BCsinpoint.Get(l)) found = 1;
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if( ! found ) BCsinpoint.Append(BC);
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}
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}
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}
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int nbcsp = BCsinpoint.Size();
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outfile << "[" << nbcsp << "] ";
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for (j = 1; j <= nbcsp; j++)
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outfile << BCsinpoint.Get(j) << " ";
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outfile << "\n";
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}
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else outfile << "[0]\n";
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}
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outfile << "\n"
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" Element types and connectivity\n"
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" the columns contain:\n"
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" - element number\n"
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" - element type\n"
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" - subdomain number\n"
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" - the global node numbers of the nodes in the element.\n"
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"#\n";
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for (i = 1; i <= ne; i++)
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{
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const Element & el = mesh.VolumeElement(i);
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outfile.width(5);
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if(el.GetNP()==4)
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outfile << i << " ElmT4n3D ";
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else
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outfile << i << " ElmT10n3D ";
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outfile.width(4);
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outfile << el.GetIndex() << " ";
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if(el.GetNP()==10)
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{
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outfile.width(8);
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outfile << el.PNum(1);
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outfile.width(8);
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outfile << el.PNum(3);
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outfile.width(8);
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outfile << el.PNum(2);
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outfile.width(8);
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outfile << el.PNum(4);
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outfile.width(8);
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outfile << el.PNum(6);
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outfile.width(8);
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outfile << el.PNum(8);
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outfile.width(8);
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outfile << el.PNum(5);
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outfile.width(8);
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outfile << el.PNum(7);
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outfile.width(8);
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outfile << el.PNum(10);
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outfile.width(8);
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outfile << el.PNum(9);
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}
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else
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{
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outfile.width(8);
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outfile << el.PNum(1);
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outfile.width(8);
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outfile << el.PNum(3);
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outfile.width(8);
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outfile << el.PNum(2);
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outfile.width(8);
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outfile << el.PNum(4);
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}
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outfile << "\n";
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}
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} /* Diffpack */
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else
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{
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// Output compatible to Diffpack grid format 2D
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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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NgArray <int> BIname;
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NgArray <int> BCsinpoint;
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int i, j, k, l;
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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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const Element2d & eldummy = mesh.SurfaceElement((int)1);
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outfile << "\n\n"
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"Finite element mesh (GridFE):\n\n"
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" Number of space dim. = 2\n"
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" Number of elements = " << nse << "\n"
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" Number of nodes = " << np << "\n\n"
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" All elements are of the same type : dpTRUE\n"
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" Max number of nodes in an element: "<<eldummy.GetNP()<<"\n"
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" Only one subdomain : dpFALSE\n"
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" Lattice data ? 0\n\n\n\n";
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for (i = 1; i <= nse; i++)
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{
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int BI=mesh.GetFaceDescriptor(mesh.SurfaceElement(i).GetIndex()).BCProperty();
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int nbi=BIname.Size();
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int found=0;
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for (j = 1; j <= nbi; j++)
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if(BI == BIname.Get(j)) found = 1;
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if( ! found ) BIname.Append(BI);
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}
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outfile << " " << BIname.Size() << " Boundary indicators: ";
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for (i =1 ; i <= BIname.Size(); i++)
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outfile << BIname.Get(i) << " ";
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outfile << "\n\n\n";
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outfile << " Nodal coordinates and nodal boundary indicators,\n"
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" the columns contain:\n"
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" - node number\n"
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" - coordinates\n"
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" - no of boundary indicators that are set (ON)\n"
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" - the boundary indicators that are set (ON) if any.\n"
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"#\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(12);
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outfile << i << " (";
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outfile.width(16);
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outfile << p.X()/scale << ", ";
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outfile.width(16);
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outfile << p.Y()/scale << ") ";
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if(mesh[PointIndex(i)].Type() != INNERPOINT)
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{
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BCsinpoint.DeleteAll();
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for (j = 1; j <= nse; j++)
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{
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for (k = 1; k <= 2; k++)
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{
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if(mesh.SurfaceElement(j).PNum(k)==i)
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{
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int BC=mesh.GetFaceDescriptor(mesh.SurfaceElement(j).GetIndex()).BCProperty();
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int nbcsp=BCsinpoint.Size();
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int found = 0;
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for (l = 1; l <= nbcsp; l++)
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if(BC == BCsinpoint.Get(l)) found = 1;
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if( ! found ) BCsinpoint.Append(BC);
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}
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}
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}
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int nbcsp = BCsinpoint.Size();
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outfile << "[" << nbcsp << "] ";
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for (j = 1; j <= nbcsp; j++)
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outfile << BCsinpoint.Get(j) << " ";
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outfile << "\n";
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}
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else outfile << "[0]\n";
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}
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outfile << "\n"
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" Element types and connectivity\n"
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" the columns contain:\n"
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" - element number\n"
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" - element type\n"
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" - subdomain number\n"
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" - the global node numbers of the nodes in the element.\n"
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"#\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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outfile.width(12);
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if(eldummy.GetNP()==3)
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outfile << i << " ElmT3n2D ";
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else
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outfile << i << " ElmT6n2D ";
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outfile.width(12);
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outfile << el.GetIndex() << " ";
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outfile.width(16);
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outfile << el.PNum(1);
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outfile.width(16);
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outfile << el.PNum(2);
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outfile.width(16);
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outfile << el.PNum(3);
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if(eldummy.GetNP()==6)
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{
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outfile.width(16);
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outfile << el.PNum(6);
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outfile.width(16);
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outfile << el.PNum(4);
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outfile.width(16);
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outfile << el.PNum(5);
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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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static RegisterUserFormat reg_surface("DIFFPACK Format", {".mesh"}, nullopt, WriteDiffPackFormat);
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}
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