Fix second order output in elmer format

This commit is contained in:
Matthias Hochsteger 2021-09-20 15:08:54 +00:00
parent be6dbdadbf
commit db5acb5718
2 changed files with 388 additions and 31 deletions

282
doc/element_types.tex Normal file
View File

@ -0,0 +1,282 @@
\documentclass[convert=pdf2svg]{standalone}
% \documentclass{article}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\renewcommand{\familydefault}{\sfdefault}
\usepackage{tikz}
\usepackage{tikz-3dplot}
\usetikzlibrary{external}
\tikzset{external/force remake}
\tikzset{external/disable dependency files}
\tikzset{external/aux in dpth={false}}
% uncomment this to generate a figure for each cell type (and change documentclass to article)
% \tikzexternalize
\tikzstyle{vertex} = [circle,draw=black,fill=black,scale = 0.5]
\tdplotsetmaincoords{70}{110}
% cnode(tag,x,y,z,label,label_pos)
\def\cnode(#1,#2,#3,#4,#5,#6){
\node (#1) at (#2,#3,#4) [vertex,label=#6:$\mathsf{#5}$] {};
}
\pagestyle{empty}
\begin{document}
\begin{tabular}{cc}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
SEGMENT &
SEGMENT3
\\
\tikzsetnextfilename{line}
\begin{tikzpicture}[scale = 2]
\cnode(n0,0,0,0,1,below right);
\cnode(n1,2,0,0,2,below right);
\draw (n0) -- (n1);
\end{tikzpicture}
&
\tikzsetnextfilename{line3}
\begin{tikzpicture}[scale = 2]
\cnode(n0,0,0,0,1,below right);
\cnode(n1,2,0,0,2,below right);
\cnode(n2,1,0,0,3,below right);
\draw (n0) -- (n2) -- (n1);
\end{tikzpicture}
\\[1 em]
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
TRIG &
TRIG6
\\
\tikzsetnextfilename{triangle}
\begin{tikzpicture}[scale = 2]
\cnode(n0,0,0,0,1,below right);
\cnode(n1,2,0,0,2,below right);
\cnode(n2,0,2,0,3,right);
\draw (n0) -- (n1) -- (n2) -- (n0);
\end{tikzpicture}
&
\tikzsetnextfilename{triangle6}
\begin{tikzpicture}[scale = 2]
\cnode(n0,0,0,0,1,below right);
\cnode(n1,2,0,0,2,below right);
\cnode(n2,0,2,0,3,right);
\cnode(n3,1,0,0,6,below right);
\cnode(n4,1,1,0,4,right);
\cnode(n5,0,1,0,5,below right);
\draw (n0) -- (n3) -- (n1) -- (n4) -- (n2) -- (n5) -- (n0);
\end{tikzpicture}
\\[1 em]
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
QUAD &
QUAD8
\\
\tikzsetnextfilename{quad}
\begin{tikzpicture}[scale = 2]
\cnode(n0,0,0,0,1,below right);
\cnode(n1,2,0,0,2,below right);
\cnode(n2,2,2,0,3,below right);
\cnode(n3,0,2,0,4,below right);
\draw (n0) -- (n1) -- (n2) -- (n3) -- (n0);
\end{tikzpicture}
&
\tikzsetnextfilename{quad8}
\begin{tikzpicture}[scale = 2]
\cnode(n0,0,0,0,1,below right);
\cnode(n1,2,0,0,2,below right);
\cnode(n2,2,2,0,3,below right);
\cnode(n3,0,2,0,4,below right);
\cnode(n4,1,0,0,5,below right);
\cnode(n5,2,1,0,8,below right);
\cnode(n6,1,2,0,6,below right);
\cnode(n7,0,1,0,7,below right);
\draw (n0) -- (n4) -- (n1) -- (n5) -- (n2) -- (n6) -- (n3) -- (n7) -- (n0);
\end{tikzpicture}
\\[1 em]
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
TET &
TET10
\\
\tikzsetnextfilename{tetra}
\begin{tikzpicture}[scale = 2, tdplot_main_coords]
\cnode(n0,0,0,0,1,below right);
\cnode(n1,2,0,0,3,below right);
\cnode(n2,0,2,0,2,below right);
\cnode(n3,0,0,2,4,right);
\draw (n0) -- (n1) -- (n2) -- (n0);
\draw (n0) -- (n3);
\draw (n1) -- (n3);
\draw (n2) -- (n3);
\end{tikzpicture}
&
\tikzsetnextfilename{tetra10} % VTK
\begin{tikzpicture}[scale = 2, tdplot_main_coords]
\cnode(n0,0,0,0,1,below right);
\cnode(n1,2,0,0,3,below right);
\cnode(n2,0,2,0,2,below right);
\cnode(n3,0,0,2,4,right);
\cnode(n4,1,0,0,6,below right);
\cnode(n5,1,1,0,8,below right);
\cnode(n6,0,1,0,5,below right);
\cnode(n7,0,0,1,7,below right);
\cnode(n8,1,0,1,10,below right);
\cnode(n9,0,1,1,9,right);
\draw (n0) -- (n4) -- (n1) -- (n5) -- (n2) -- (n6) -- (n0);
\draw (n0) -- (n7) -- (n3);
\draw (n1) -- (n8) -- (n3);
\draw (n2) -- (n9) -- (n3);
\end{tikzpicture}
\\[1 em]
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
PYRAMID &
PYRAMID13
\\
\tikzsetnextfilename{pyramid}
\begin{tikzpicture}[scale = 2, tdplot_main_coords]
\cnode(n0,0,0,0,1,below right);
\cnode(n1,2,0,0,4,below right);
\cnode(n2,2,2,0,3,below right);
\cnode(n3,0,2,0,2,below right);
\cnode(n4,1,1,2,5,right);
\draw (n0) -- (n1) -- (n2) -- (n3) -- (n0);
\draw (n0) -- (n4);
\draw (n1) -- (n4);
\draw (n2) -- (n4);
\draw (n3) -- (n4);
\end{tikzpicture}
&
\tikzsetnextfilename{pyramid13} % VTK != gmsh
\begin{tikzpicture}[scale = 2, tdplot_main_coords]
\cnode(n0,0,0,0,1,below right);
\cnode(n1,2,0,0,4,below right);
\cnode(n2,2,2,0,3,below right);
\cnode(n3,0,2,0,2,below right);
\cnode(n4,1,1,2,5,right);
\cnode(n5,1,0,0,8,below right);
\cnode(n6,2,1,0,7,below right);
\cnode(n7,1,2,0,9,below right);
\cnode(n8,0,1,0,6,below right);
\cnode(n9,0.5,0.5,1,10,below right);
\cnode(n10,1.5,0.5,1,13,below right);
\cnode(n11,1.5,1.5,1,12,below right);
\cnode(n12,0.5,1.5,1,11,right);
\draw (n0) -- (n5) -- (n1) -- (n6) -- (n2) -- (n7) -- (n3) -- (n8) -- (n0);
\draw (n0) -- (n9) -- (n4);
\draw (n1) -- (n10) -- (n4);
\draw (n2) -- (n11) -- (n4);
\draw (n3) -- (n12) -- (n4);
\end{tikzpicture}
\\[1 em]
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
PRISM &
PRISM15
\\
\tikzsetnextfilename{wedge} % gmsh != VTK
\begin{tikzpicture}[scale = 2, tdplot_main_coords]
\cnode(n0,0,0,0,1,below right);
\cnode(n1,2,0,0,3,below right);
\cnode(n2,0,2,0,2,below right);
\cnode(n3,0,0,2,4,below right);
\cnode(n4,2,0,2,6,below right);
\cnode(n5,0,2,2,5,below right);
\draw (n0) -- (n1) -- (n2) -- (n0);
\draw (n3) -- (n4) -- (n5) -- (n3);
\draw (n0) -- (n3);
\draw (n1) -- (n4);
\draw (n2) -- (n5);
\end{tikzpicture}
&
\tikzsetnextfilename{wedge15} % VTK != gmsh
\begin{tikzpicture}[scale = 2, tdplot_main_coords]
\cnode(n0,0,0,0,1,below right);
\cnode(n1,2,0,0,3,below right);
\cnode(n2,0,2,0,2,below right);
\cnode(n3,0,0,2,4,below right);
\cnode(n4,2,0,2,6,below right);
\cnode(n5,0,2,2,5,below right);
\cnode(n6,1,0,0,8,below right);
\cnode(n7,1,1,0,9,below right);
\cnode(n8,0,1,0,7,below right);
\cnode(n9,1,0,2,14,below right);
\cnode(n10,1,1,2,15,below right);
\cnode(n11,0,1,2,13,below right);
\cnode(n12,0,0,1,10,below right);
\cnode(n13,2,0,1,12,below right);
\cnode(n14,0,2,1,11,below right);
\draw (n0) -- (n6) -- (n1) -- (n7) -- (n2) -- (n8) -- (n0);
\draw (n3) -- (n9) -- (n4) -- (n10) -- (n5) -- (n11) -- (n3);
\draw (n0) -- (n12) -- (n3);
\draw (n1) -- (n13) -- (n4);
\draw (n2) -- (n14) -- (n5);
\end{tikzpicture}
\\[1 em]
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
HEX &
HEX20
\\
\tikzsetnextfilename{hexahedron}
\begin{tikzpicture}[scale = 2, tdplot_main_coords]
\cnode(n0,0,0,0,1,below right);
\cnode(n1,2,0,0,4,below right);
\cnode(n2,2,2,0,3,below right);
\cnode(n3,0,2,0,2,below right);
\cnode(n4,0,0,2,5,below right);
\cnode(n5,2,0,2,8,below right);
\cnode(n6,2,2,2,7,below right);
\cnode(n7,0,2,2,6,below right);
\draw (n0) -- (n1) -- (n2) -- (n3) -- (n0);
\draw (n4) -- (n5) -- (n6) -- (n7) -- (n4);
\draw (n0) -- (n4);
\draw (n1) -- (n5);
\draw (n2) -- (n6);
\draw (n3) -- (n7);
\end{tikzpicture}
&
\tikzsetnextfilename{hexahedron20} % VTK != gmsh
\begin{tikzpicture}[scale = 2, tdplot_main_coords]
\cnode(n0,0,0,0,1,below right);
\cnode(n1,2,0,0,4,below right);
\cnode(n2,2,2,0,3,below right);
\cnode(n3,0,2,0,2,below right);
\cnode(n4,0,0,2,5,below right);
\cnode(n5,2,0,2,8,below right);
\cnode(n6,2,2,2,7,below right);
\cnode(n7,0,2,2,6,below right);
\cnode(n8,1,0,0,11,below right);
\cnode(n9,2,1,0,10,below right);
\cnode(n10,1,2,0,12,below right);
\cnode(n11,0,1,0,9,below right);
\cnode(n12,1,0,2,15,below right);
\cnode(n13,2,1,2,14,below right);
\cnode(n14,1,2,2,16,below right);
\cnode(n15,0,1,2,13,below right);
\cnode(n16,0,0,1,17,below right);
\cnode(n17,2,0,1,20,below right);
\cnode(n18,2,2,1,19,below right);
\cnode(n19,0,2,1,18,below right);
\draw (n0) -- (n8) -- (n1) -- (n9) -- (n2) -- (n10) -- (n3) -- (n11) -- (n0);
\draw (n4) -- (n12) -- (n5) -- (n13) -- (n6) -- (n14) -- (n7) -- (n15) -- (n4);
\draw (n0) -- (n16) -- (n4);
\draw (n1) -- (n17) -- (n5);
\draw (n2) -- (n18) -- (n6);
\draw (n3) -- (n19) -- (n7);
\end{tikzpicture}
\end{tabular}
\end{document}

View File

@ -24,6 +24,35 @@ void WriteElmerFormat (const Mesh &mesh,
const string &filename)
{
cout << "write elmer mesh files" << endl;
std::map<ELEMENT_TYPE, int> tmap;
tmap[TRIG] = 303;
tmap[TRIG6] = 306;
tmap[QUAD] = 404;
tmap[QUAD8] = 408;
tmap[TET] = 504;
tmap[TET10] = 510;
tmap[PYRAMID] = 605;
tmap[PYRAMID13] = 613;
tmap[PRISM] = 706;
tmap[PRISM15] = 715;
tmap[HEX] = 808;
tmap[HEX20] = 820;
std::map<int, Array<int,int>> pmap;
pmap[TRIG] = {1,2,3};
pmap[TRIG6] = {1,2,3, 6,4,5};
pmap[QUAD] = {1,2,3,4};
pmap[QUAD8] = {1,2,3,4, 5,8,6,7};
pmap[TET] = {1,2,3,4};
pmap[TET10] = {1,2,3,4, 5,8,6,7,9,10};
pmap[PYRAMID]={1,2,3,4,5};
pmap[PYRAMID13]= {1,2,3,4,5,6,7,8,9,10,11,12,13};
pmap[PRISM] = {1,2,3,4,5,6};
pmap[PRISM15] = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
pmap[HEX] = {1,2,3,4,5,6,7,8};
pmap[HEX20] = {1,2,3,4,5,8,6,7,8, 9,12,10,11, 17,20,19,18, 13,16,14,15};
int np = mesh.GetNP();
int ne = mesh.GetNE();
int nse = mesh.GetNSE();
@ -50,27 +79,67 @@ void WriteElmerFormat (const Mesh &mesh,
ofstream outfile_e(str);
sprintf( str, "%s/mesh.boundary", filename.c_str() );
ofstream outfile_b(str);
sprintf( str, "%s/mesh.names", filename.c_str() );
ofstream outfile_names(str);
for( auto codim : IntRange(0, mesh.GetDimension()-1) )
{
auto & names = const_cast<Mesh&>(mesh).GetRegionNamesCD(codim);
for (auto i0 : Range(names) )
{
if(names[i0] == nullptr)
continue;
string name = *names[i0];
if(name == "" || name == "default")
continue;
outfile_names << "$" << name << "=" << i0+1 << "\n";
}
}
auto get3FacePoints = [](const Element2d & el)
{
INDEX_3 i3;
INDEX_4 i4;
auto eltype = el.GetType();
switch (eltype)
{
case TRIG:
case TRIG6:
i3 = {el[0], el[1], el[2]};
i3.Sort();
break;
case QUAD:
case QUAD8:
i4 = {el[0], el[1], el[2], el[3]};
i4.Sort();
i3 = {i4[0], i4[1], i4[2]};
break;
default:
throw Exception("Got invalid type (no face)");
}
return i3;
};
// fill hashtable
// use lowest three point numbers of lowest-order face to index faces
INDEX_3_HASHTABLE<int> face2volelement(ne);
for (i = 1; i <= ne; i++)
for (int i = 1; i <= ne; i++)
{
const Element & el = mesh.VolumeElement(i);
INDEX_3 i3;
int k, l;
for (j = 1; j <= 4; j++) // loop over faces of tet
// getface not working for second order elements -> reconstruct linear element here
Element linear_el = el;
linear_el.SetNP(el.GetNV()); // GetNV returns 8 for HEX20 for instance
for (auto j : Range(1,el.GetNFaces()+1))
{
l = 0;
for (k = 1; k <= 4; k++)
if (k != j)
{
l++;
i3.I(l) = el.PNum(k);
}
i3.Sort();
face2volelement.Set (i3, i);
Element2d face;
linear_el.GetFace(j, face);
face2volelement.Set (get3FacePoints(face), i);
cout << "set " << get3FacePoints(face) << "\tto " << i << endl;
}
}
@ -78,10 +147,7 @@ void WriteElmerFormat (const Mesh &mesh,
// outfile.setf (ios::fixed, ios::floatfield);
// outfile.setf (ios::showpoint);
outfile_h << np << " " << ne << " " << nse << "\n";
outfile_h << "2" << "\n";
outfile_h << "303 " << nse << "\n";
outfile_h << "504 " << ne << "\n";
std::map<ELEMENT_TYPE, size_t> elcount;
for (i = 1; i <= np; i++)
{
@ -97,12 +163,15 @@ void WriteElmerFormat (const Mesh &mesh,
{
Element el = mesh.VolumeElement(i);
if (inverttets) el.Invert();
sprintf( str, "5%02d", (int)el.GetNP() );
outfile_e << i << " " << el.GetIndex() << " " << str << " ";
auto eltype = el.GetType();
elcount[eltype]++;
outfile_e << i << " " << el.GetIndex() << " " << tmap[eltype] << " ";
auto & map = pmap[eltype];
for (j = 1; j <= el.GetNP(); j++)
{
outfile_e << " ";
outfile_e << el.PNum(j);
outfile_e << el.PNum(map[j-1]);
}
outfile_e << "\n";
}
@ -111,23 +180,29 @@ void WriteElmerFormat (const Mesh &mesh,
{
Element2d el = mesh.SurfaceElement(i);
if (invertsurf) el.Invert();
sprintf( str, "3%02d", (int)el.GetNP() );
{
INDEX_3 i3;
for (j = 1; j <= 3; j++) i3.I(j) = el.PNum(j);
i3.Sort();
auto eltype = el.GetType();
elcount[eltype]++;
int elind = face2volelement.Get(get3FacePoints(el));
cout << "get " << get3FacePoints(el) << "\t " << elind << endl;
int elind = face2volelement.Get(i3);
outfile_b << i << " " << mesh.GetFaceDescriptor(el.GetIndex()).BCProperty() <<
" " << elind << " 0 " << str << " ";
}
" " << elind << " 0 " << tmap[eltype] << " ";
auto & map = pmap[el.GetType()];
for (j = 1; j <= el.GetNP(); j++)
{
outfile_b << " ";
outfile_b << el.PNum(j);
outfile_b << el.PNum(map[j-1]);
}
outfile_b << "\n";
}
outfile_h << np << " " << ne << " " << nse << "\n";
outfile_h << "2" << "\n";
for( auto & [eltype,count] : elcount )
outfile_h << tmap[eltype] << " " << count << "\n";
}
}