Commit 539db03c authored by Franjo's avatar Franjo

Added a utility to convert the fms format into VTK multi-block data

readable in Paraview
parent c64b3c7b
surfaceToVTK.C
EXE = $(FOAM_USER_APPBIN)/surfaceToVTK
EXE_INC = \
-I../../meshLibrary/lnInclude \
-I$(FOAM_SRC)/meshTools/lnInclude \
-I$(FOAM_SRC)/triSurface/lnInclude
EXE_LIBS = \
-ltriSurface \
-L$(FOAM_USER_LIBBIN) \
-lmeshLibrary \
-lmeshTools
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | cfMesh: A library for mesh generation
\\ / O peration |
\\ / A nd | Author: Franjo Juretic (franjo.juretic@c-fields.com)
\\/ M anipulation | Copyright (C) Creative Fields, Ltd.
-------------------------------------------------------------------------------
License
This file is part of cfMesh.
cfMesh is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 3 of the License, or (at your
option) any later version.
cfMesh is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with cfMesh. If not, see <http://www.gnu.org/licenses/>.
Description
cfMesh utility to convert a surface file to VTK multiblock dataset
format, including the patches, feature edges and surface features.
Author
Ivor Clifford <ivor.clifford@psi.ch>
\*---------------------------------------------------------------------------*/
#include "argList.H"
#include "autoPtr.H"
#include "OFstream.H"
#include "triSurf.H"
#include "triSurfModifier.H"
#include "xmlTag.H"
using namespace Foam;
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
//- Write the supplied pointList in serial vtkPolyData format
void writePointsToVTK
(
const fileName& fn,
const string& title,
const UList<point>& points
)
{
xmlTag xmlRoot("VTKFile");
xmlRoot.addAttribute("type", "PolyData");
xmlTag& xmlPolyData = xmlRoot.addChild("PolyData");
xmlTag& xmlPiece = xmlPolyData.addChild("Piece");
xmlPiece.addAttribute("NumberOfPoints", points.size());
xmlTag& xmlPoints = xmlPiece.addChild("Points");
xmlTag& xmlPointData = xmlPoints.addChild("DataArray");
xmlPointData.addAttribute("type", "Float32");
xmlPointData.addAttribute("NumberOfComponents", 3);
xmlPointData.addAttribute("format", "ascii");
xmlPointData << points;
OFstream os(fn);
os << xmlRoot << endl;
Info << "Created " << fn << endl;
}
//- Write the supplied addressed pointList in serial vtkPolyData format
void writePointsToVTK
(
const fileName& fn,
const string& title,
const UList<point>& points,
unallocLabelList& addr
)
{
// Create subaddressed points
pointField newPoints(addr.size());
forAll(addr, i)
{
newPoints[i] = points[addr[i]];
}
writePointsToVTK
(
fn,
title,
newPoints
);
}
//- Write the supplied edgeList in serial vtkPolyData format
void writeEdgesToVTK
(
const fileName& fn,
const string& title,
const UList<point>& points,
const LongList<edge>& edges
)
{
labelList connectivity(edges.size());
forAll(edges, edgeI)
{
connectivity[edgeI] = 2*(edgeI+1);
}
xmlTag xmlRoot("VTKFile");
xmlRoot.addAttribute("type", "PolyData");
xmlTag& xmlPolyData = xmlRoot.addChild("PolyData");
xmlTag& xmlPiece = xmlPolyData.addChild("Piece");
xmlPiece.addAttribute("NumberOfPoints", points.size());
xmlPiece.addAttribute("NumberOfLines", edges.size());
xmlTag& xmlPoints = xmlPiece.addChild("Points");
xmlTag& xmlPointData = xmlPoints.addChild("DataArray");
xmlPointData.addAttribute("type", "Float32");
xmlPointData.addAttribute("NumberOfComponents", 3);
xmlPointData.addAttribute("format", "ascii");
xmlPointData << points;
xmlTag& xmlEdges = xmlPiece.addChild("Lines");
xmlTag& xmlEdgeData = xmlEdges.addChild("DataArray");
xmlEdgeData.addAttribute("type", "Int32");
xmlEdgeData.addAttribute("Name", "connectivity");
xmlEdgeData.addAttribute("format", "ascii");
xmlEdgeData << edges;
xmlTag& xmlConnectData = xmlEdges.addChild("DataArray");
xmlConnectData.addAttribute("type", "Int32");
xmlConnectData.addAttribute("Name", "offsets");
xmlConnectData.addAttribute("format", "ascii");
xmlConnectData << connectivity;
OFstream os(fn);
os << xmlRoot << endl;
Info << "Created " << fn << endl;
}
//- Write the supplied edgeList subset in serial vtkPolyData format
void writeEdgesToVTK
(
const fileName& fn,
const string& title,
const UList<point>& points,
const LongList<edge>& edges,
const unallocLabelList& addr
)
{
// Remove unused points and create subaddressed edges
DynamicList<point> newPoints;
labelList newPointAddr(points.size(), -1);
LongList<edge> newEdges(addr.size());
forAll(addr, addrI)
{
label edgeI = addr[addrI];
const edge& curEdge = edges[edgeI];
edge& newEdge = newEdges[addrI];
forAll(curEdge, i)
{
label pointId = curEdge[i];
if (newPointAddr[pointId] == -1)
{
newPoints.append(points[pointId]);
newPointAddr[pointId] = newPoints.size()-1;
}
newEdge[i] = newPointAddr[pointId];
}
}
writeEdgesToVTK
(
fn,
title,
newPoints,
newEdges
);
}
//- Write the supplied facet list in serial vtkPolyData format
void writeFacetsToVTK
(
const fileName& fn,
const string& title,
const UList<point>& points,
const LongList<labelledTri>& facets
)
{
labelList connectivity(facets.size());
forAll(facets, faceI)
{
connectivity[faceI] = 3*(faceI+1);
}
labelList regionData(facets.size());
forAll(facets, faceI)
{
regionData[faceI] = facets[faceI].region();
}
xmlTag xmlRoot("VTKFile");
xmlRoot.addAttribute("type", "PolyData");
xmlTag& xmlPolyData = xmlRoot.addChild("PolyData");
xmlTag& xmlPiece = xmlPolyData.addChild("Piece");
xmlPiece.addAttribute("NumberOfPoints", points.size());
xmlPiece.addAttribute("NumberOfPolys", facets.size());
xmlTag& xmlPoints = xmlPiece.addChild("Points");
xmlTag& xmlPointData = xmlPoints.addChild("DataArray");
xmlPointData.addAttribute("type", "Float32");
xmlPointData.addAttribute("NumberOfComponents", 3);
xmlPointData.addAttribute("format", "ascii");
xmlPointData << points;
xmlTag& xmlPolys = xmlPiece.addChild("Polys");
xmlTag& xmlPolyDataArray = xmlPolys.addChild("DataArray");
xmlPolyDataArray.addAttribute("type", "Int32");
xmlPolyDataArray.addAttribute("Name", "connectivity");
xmlPolyDataArray.addAttribute("format", "ascii");
xmlPolyDataArray << facets;
xmlTag& xmlConnectData = xmlPolys.addChild("DataArray");
xmlConnectData.addAttribute("type", "Int32");
xmlConnectData.addAttribute("Name", "offsets");
xmlConnectData.addAttribute("format", "ascii");
xmlConnectData << connectivity;
xmlTag& xmlCellData = xmlPiece.addChild("CellData");
xmlTag& xmlCellDataArray = xmlCellData.addChild("DataArray");
xmlCellDataArray.addAttribute("type", "Int32");
xmlCellDataArray.addAttribute("Name", "region");
xmlCellDataArray.addAttribute("format", "ascii");
xmlCellDataArray << regionData;
OFstream os(fn);
os << xmlRoot << endl;
Info << "Created " << fn << endl;
}
//- Write an addressed subset of the supplied facet list
//- in serial vtkPolyData format
void writeFacetsToVTK
(
const fileName& fn,
const string& title,
const pointField& points,
const LongList<labelledTri>& facets,
const unallocLabelList& addr
)
{
// Remove unused points and create subaddressed facets
DynamicList<point> newPoints;
labelList newPointAddr(points.size(), -1);
LongList<labelledTri> newFacets(addr.size());
forAll(addr, addrI)
{
label faceI = addr[addrI];
const labelledTri& facet = facets[faceI];
const FixedList<label, 3>& pointIds = facet;
FixedList<label, 3> newPointIds;
forAll(pointIds, i)
{
label pointId = pointIds[i];
if (newPointAddr[pointId] == -1)
{
newPoints.append(points[pointId]);
newPointAddr[pointId] = newPoints.size()-1;
}
newPointIds[i] = newPointAddr[pointId];
}
newFacets[addrI] = labelledTri
(
newPointIds[0],
newPointIds[1],
newPointIds[2],
facet.region()
);
}
writeFacetsToVTK
(
fn,
title,
newPoints,
newFacets
);
}
int main(int argc, char *argv[])
{
argList::noParallel();
argList::validArgs.clear();
argList::validArgs.append("input surface file");
argList::validArgs.append("output prefix");
argList args(argc, argv);
// Process commandline arguments
fileName inFileName(args.args()[1]);
fileName outPrefix(args.args()[2]);
// Read original surface
triSurf origSurf(inFileName);
const pointField& points = origSurf.points();
const LongList<labelledTri>& facets = origSurf.facets();
const LongList<edge>& edges = origSurf.featureEdges();
const geometricSurfacePatchList& patches = origSurf.patches();
label index = 0;
// Create file structure for multiblock dataset
mkDir(outPrefix);
mkDir(outPrefix + "/patches");
mkDir(outPrefix + "/pointSubsets");
mkDir(outPrefix + "/edgeSubsets");
mkDir(outPrefix + "/faceSubsets");
// Create VTK multiblock dataset file
xmlTag xmlRoot("VTKFile");
xmlRoot.addAttribute("type", "vtkMultiBlockDataSet");
xmlRoot.addAttribute("version", "1.0");
xmlRoot.addAttribute("byte_order", "LittleEndian");
xmlTag& xmlDataSet = xmlRoot.addChild("vtkMultiBlockDataSet");
// Write faces and feature edges
{
fileName fn = outPrefix / "facets.vtp";
writeFacetsToVTK
(
outPrefix / "facets.vtp",
outPrefix,
points,
facets
);
xmlTag& tag = xmlDataSet.addChild("DataSet");
tag.addAttribute("index", Foam::name(index++));
tag.addAttribute("name", "facets");
tag.addAttribute("file", fn);
}
{
fileName fn = outPrefix / "featureEdges.vtp";
writeEdgesToVTK
(
outPrefix / "featureEdges.vtp",
"featureEdges",
points,
edges
);
xmlTag& tag = xmlDataSet.addChild("DataSet");
tag.addAttribute("index", Foam::name(index++));
tag.addAttribute("name", "featureEdges");
tag.addAttribute("file", fn);
}
// Write patches
// Create patch addressing
List<DynamicList<label> > patchAddr(patches.size());
forAll(facets, faceI)
{
patchAddr[facets[faceI].region()].append(faceI);
}
{
xmlTag& xmlBlock = xmlDataSet.addChild("Block");
xmlBlock.addAttribute("index", Foam::name(index++));
xmlBlock.addAttribute("name", "patches");
forAll(patches, patchI)
{
word patchName = patches[patchI].name();
fileName fn = outPrefix / "patches" / patchName + ".vtp";
writeFacetsToVTK
(
fn,
patchName,
points,
facets,
patchAddr[patchI]
);
xmlTag& tag = xmlBlock.addChild("DataSet");
tag.addAttribute("index", Foam::name(patchI));
tag.addAttribute("name", patchName);
tag.addAttribute("file", fn);
}
}
// Write point subsets
{
xmlTag& xmlBlock = xmlDataSet.addChild("Block");
xmlBlock.addAttribute("index", Foam::name(index++));
xmlBlock.addAttribute("name", "pointSubsets");
DynList<label> subsetIndices;
labelList subsetAddr;
origSurf.pointSubsetIndices(subsetIndices);
forAll(subsetIndices, id)
{
word subsetName = origSurf.pointSubsetName(id);
origSurf.pointsInSubset(id, subsetAddr);
fileName fn = outPrefix / "pointSubsets" / subsetName + ".vtp";
writePointsToVTK
(
fn,
subsetName,
points,
subsetAddr
);
xmlTag& tag = xmlBlock.addChild("DataSet");
tag.addAttribute("index", Foam::name(id));
tag.addAttribute("name", subsetName);
tag.addAttribute("file", fn);
}
}
// Write edge subsets
{
xmlTag& xmlBlock = xmlDataSet.addChild("Block");
xmlBlock.addAttribute("index", Foam::name(index++));
xmlBlock.addAttribute("name", "edgeSubsets");
DynList<label> subsetIndices;
labelList subsetAddr;
origSurf.edgeSubsetIndices(subsetIndices);
forAll(subsetIndices, id)
{
word subsetName = origSurf.edgeSubsetName(id);
origSurf.edgesInSubset(id, subsetAddr);
fileName fn = outPrefix / "edgeSubsets" / subsetName + ".vtp";
writeEdgesToVTK
(
fn,
subsetName,
points,
edges,
subsetAddr
);
xmlTag& tag = xmlBlock.addChild("DataSet");
tag.addAttribute("index", Foam::name(id));
tag.addAttribute("name", subsetName);
tag.addAttribute("file", fn);
}
}
// Write facet subsets
{
xmlTag& xmlBlock = xmlDataSet.addChild("Block");
xmlBlock.addAttribute("index", Foam::name(index++));
xmlBlock.addAttribute("name", "faceSubsets");
DynList<label> subsetIndices;
labelList subsetAddr;
origSurf.facetSubsetIndices(subsetIndices);
forAll(subsetIndices, id)
{
word subsetName = origSurf.facetSubsetName(id);
origSurf.facetsInSubset(id, subsetAddr);
fileName fn = outPrefix / "faceSubsets" / subsetName + ".vtp";
writeFacetsToVTK
(
fn,
subsetName,
points,
facets,
subsetAddr
);
xmlTag& tag = xmlBlock.addChild("DataSet");
tag.addAttribute("index", Foam::name(id));
tag.addAttribute("name", subsetName);
tag.addAttribute("file", fn);
}
}
OFstream os(outPrefix + ".vtm");
os << xmlRoot << endl;
Info << "Created " << outPrefix + ".vtm" << endl;
Info << "End\n" << endl;
return 0;
}
// ************************************************************************* //
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | foam-extend: Open Source CFD
\\ / O peration |
\\ / A nd | For copyright notice see file Copyright
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of foam-extend.
foam-extend is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation, either version 3 of the License, or (at your
option) any later version.
foam-extend is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with foam-extend. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::xmlTag
Description
Simple XML tag class allowing child tags and attributes. Specialized
output stream operators are provided to display or write the XML
structure.
Author
Ivor Clifford <ivor.clifford@psi.ch>
\*---------------------------------------------------------------------------*/
#ifndef XMLtag_H
#define XMLtag_H
#include "OStringStream.H"
#include "HashTable.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
/*---------------------------------------------------------------------------*\
Class xmlTag Declaration
\*---------------------------------------------------------------------------*/
class xmlTag
:
public OStringStream
{
// Private data