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Commit 2175919d authored by Sylvain Thery's avatar Sylvain Thery
Browse files

export vtu

parent 923c0081
Hide whitespace changes
Inline Side-by-side
include/Algo/Export/export.h
View file @ 2175919d
......@@ -103,6 +103,110 @@ bool exportTrian(typename PFP::MAP& map, const VertexAttribute<typename PFP::VEC
template <typename PFP>
bool exportVTU(typename PFP::MAP& map, const VertexAttribute<typename PFP::VEC3>& position, const char* filename);
template <typename PFP>
bool exportVTUCompressed(typename PFP::MAP& map, const VertexAttribute<typename PFP::VEC3>& position, const char* filename);
template <typename PFP>
class VTUExporter
{
protected:
typedef typename PFP::MAP MAP;
typedef typename PFP::VEC3 VEC3;
typename PFP::MAP& m_map;
const VertexAttribute<typename PFP::VEC3>& m_position;
unsigned int nbtotal;
bool noPointData;
bool noCellData;
bool closed;
std::ofstream fout ;
std::vector<unsigned int> triangles;
std::vector<unsigned int> quads;
std::vector<unsigned int> others;
std::vector<unsigned int> others_begin;
std::vector<Dart> bufferTri;
std::vector<Dart> bufferQuad;
std::vector<Dart> bufferOther;
public:
VTUExporter(typename PFP::MAP& map, const VertexAttribute<typename PFP::VEC3>& position);
~VTUExporter();
/**
* @brief start writing header of vru file
* @param filename
* @return true if ok
*/
bool init(const char* filename);
/**
* @brief add a vertex attribute of type scalar
* @param attrib
* @param vtkType Float32/Int32
* @param name Data name if none then used Attribute's name
*/
template<typename T>
void addVertexAttributeScal(const VertexAttribute<T>& attrib, const std::string& vtkType, const std::string& name="");
/**
* @brief add a vertex attribute of type vector
* @param attrib
* @param vtkType Float32/Int32
* @param nbComp number components in attribute (if none comute for size of attribute)
* @param name Data name if none then used Attribute's name
*/
template<typename T>
void addVertexAttributeVect(const VertexAttribute<T>& attrib, const std::string& vtkType, unsigned int nbComp=0, const std::string& name="");
/**
* @brief finish adding vertex attributes data
*/
void endVertexAttributes();
/**
* @brief add a face attribute of type scalar
* @param attrib
* @param vtkType Float32/Int32
* @param name Data name if none then used Attribute's name
*/
template<typename T>
void addFaceAttributeScal(const FaceAttribute<T>& attrib, const std::string& vtkType, const std::string& name="");
/**
* @brief add a face aatribute of type vector
* @param attrib
* @param vtkType Float32/Int32
* @param nbComp number components in attribute (if none comute for size of attribute)
* @param name Data name if none then used Attribute's name
*/
template<typename T>
void addFaceAttributeVect(const FaceAttribute<T>& attrib, const std::string& vtkType, unsigned int nbComp=0, const std::string& name="");
/**
* @brief finish adding face attributes data
*/
void endFaceAttributes();
/**
* @brief finalize file writing & close (automatically called at destruction)
* @return true if ok
*/
bool close();
};
/**
......
include/Algo/Export/export.hpp
View file @ 2175919d
......@@ -28,6 +28,8 @@
#include "Topology/generic/traversor2.h"
#include "Topology/generic/cellmarker.h"
#include "Utils/compress.h"
namespace CGoGN
{
......@@ -1049,7 +1051,6 @@ bool exportVTU(typename PFP::MAP& map, const VertexAttribute<typename PFP::VEC3>
indices[i] = count++;
}
std::vector<unsigned int> triangles;
std::vector<unsigned int> quads;
std::vector<unsigned int> others;
......@@ -1094,37 +1095,34 @@ bool exportVTU(typename PFP::MAP& map, const VertexAttribute<typename PFP::VEC3>
fout << "<?xml version=\"1.0\"?>" << std::endl;
fout << "<VTKFile type=\"UnstructuredGrid\" version=\"0.1\" byte_order=\"BigEndian\">" << std::endl;
fout << " <UnstructuredGrid>" << std::endl;
fout << " <Piece NumberOfPoints=\"" << position.nbElements() << "\" NumberOfCells=\""<< nbtotal << "\">" << std::endl;
fout << " <Points>" << std::endl;
fout << " <DataArray type=\"Float32\" NumberOfComponents=\"3\" Format=\"ascii\">" << std::endl;
fout << "<UnstructuredGrid>" << std::endl;
fout << "<Piece NumberOfPoints=\"" << position.nbElements() << "\" NumberOfCells=\""<< nbtotal << "\">" << std::endl;
fout << "<Points>" << std::endl;
fout << "<DataArray type=\"Float32\" NumberOfComponents=\"3\" Format=\"ascii\">" << std::endl;
for (unsigned int i = position.begin(); i != position.end(); position.next(i))
{
const VEC3& P = position[i];
fout << " " << P[0]<< " " << P[1]<< " " << P[2] << std::endl;
fout << P[0]<< " " << P[1]<< " " << P[2] << std::endl;
}
fout << " </DataArray>" << std::endl;
fout << " </Points>" << std::endl;
fout << " <Cells>" << std::endl;
fout << " <DataArray type=\"Int32\" Name=\"connectivity\" Format=\"ascii\">" << std::endl;
fout << "</DataArray>" << std::endl;
fout << "</Points>" << std::endl;
fout << "<Cells>" << std::endl;
fout << "<DataArray type=\"Int32\" Name=\"connectivity\" Format=\"ascii\">" << std::endl;
for (unsigned int i=0; i<triangles.size(); i+=3)
{
fout << " ";
fout << triangles[i] << " " << triangles[i+1] << " " << triangles[i+2] << std::endl;
}
for (unsigned int i=0; i<quads.size(); i+=4)
{
fout << " ";
fout << quads[i] << " " << quads[i+1] << " " << quads[i+2] << " " << quads[i+3]<< std::endl;
}
for (unsigned int i=1; i<others_begin.size(); ++i)
{
fout << " ";
unsigned int beg = others_begin[i-1];
unsigned int end = others_begin[i];
for (unsigned int j=beg; j<end; ++j)
......@@ -1134,23 +1132,23 @@ bool exportVTU(typename PFP::MAP& map, const VertexAttribute<typename PFP::VEC3>
fout << std::endl;
}
fout << " </DataArray>" << std::endl;
fout << " <DataArray type=\"Int32\" Name=\"offsets\" Format=\"ascii\">" ;
fout << "</DataArray>" << std::endl;
fout << "<DataArray type=\"Int32\" Name=\"offsets\" Format=\"ascii\">" ;
unsigned int offset = 0;
for (unsigned int i=0; i<triangles.size(); i+=3)
{
offset += 3;
if (i%200 ==0)
fout << std::endl<< " ";
if (i%60 ==0)
fout << std::endl;
fout << " " << offset;
}
for (unsigned int i=0; i<quads.size(); i+=4)
{
offset += 4;
if (i%200 ==0)
fout << std::endl<< " ";
if (i%80 ==0)
fout << std::endl;
fout << " "<< offset;
}
......@@ -1158,37 +1156,208 @@ bool exportVTU(typename PFP::MAP& map, const VertexAttribute<typename PFP::VEC3>
{
unsigned int length = others_begin[i] - others_begin[i-1];
offset += length;
if (i%200 ==0)
fout << std::endl<< " ";
if (i%20 ==0)
fout << std::endl;
fout << " "<< offset;
fout << std::endl;
}
fout << std::endl << " </DataArray>" << std::endl;
fout << " <DataArray type=\"UInt8\" Name=\"types\" Format=\"ascii\">";
fout << std::endl << "</DataArray>" << std::endl;
fout << "<DataArray type=\"UInt8\" Name=\"types\" Format=\"ascii\">";
for (unsigned int i=0; i<triangles.size(); i+=3)
{
if (i%200 ==0)
fout << std::endl<< " ";
if (i%60 ==0)
fout << std::endl;
fout << " 5";
}
for (unsigned int i=0; i<quads.size(); i+=4)
{
if (i%200 ==0)
fout << std::endl<< " ";
if (i%80 ==0)
fout << std::endl;
fout << " 9";
}
for (unsigned int i=1; i<others_begin.size(); ++i)
{
if (i%200 ==0)
fout << std::endl<< " ";
if (i%20 ==0)
fout << std::endl;
fout << " 7";
}
fout << std::endl << " </DataArray>" << std::endl;
fout << " </Cells>" << std::endl;
fout << " </Piece>" << std::endl;
fout << " </UnstructuredGrid>" << std::endl;
fout << std::endl << "</DataArray>" << std::endl;
fout << "</Cells>" << std::endl;
fout << "</Piece>" << std::endl;
fout << "</UnstructuredGrid>" << std::endl;
fout << "</VTKFile>" << std::endl;
fout.close();
return true;
}
template <typename PFP>
bool exportVTUCompressed(typename PFP::MAP& map, const VertexAttribute<typename PFP::VEC3>& position, const char* filename)
{
if (map.dimension() != 2)
{
CGoGNerr << "Surface::Export::exportVTU works only with map of dimension 2"<< CGoGNendl;
return false;
}
typedef typename PFP::MAP MAP;
typedef typename PFP::VEC3 VEC3;
// open file
std::ofstream fout ;
fout.open(filename, std::ios::out) ;
if (!fout.good())
{
CGoGNerr << "Unable to open file " << filename << CGoGNendl ;
return false ;
}
VertexAutoAttribute<unsigned int> indices(map,"indices_vert");
unsigned int count=0;
for (unsigned int i = position.begin(); i != position.end(); position.next(i))
{
indices[i] = count++;
}
std::vector<unsigned int> triangles;
std::vector<unsigned int> quads;
std::vector<unsigned int> others;
std::vector<unsigned int> others_begin;
triangles.reserve(2048);
quads.reserve(2048);
others.reserve(2048);
others_begin.reserve(2048);
TraversorF<MAP> trav(map) ;
for(Dart d = trav.begin(); d != trav.end(); d = trav.next())
{
unsigned int degree = map.faceDegree(d);
Dart f=d;
switch(degree)
{
case 3:
triangles.push_back(indices[f]); f = map.phi1(f);
triangles.push_back(indices[f]); f = map.phi1(f);
triangles.push_back(indices[f]);
break;
case 4:
quads.push_back(indices[f]); f = map.phi1(f);
quads.push_back(indices[f]); f = map.phi1(f);
quads.push_back(indices[f]); f = map.phi1(f);
quads.push_back(indices[f]);
break;
default:
others_begin.push_back(others.size());
do
{
others.push_back(indices[f]); f = map.phi1(f);
} while (f!=d);
break;
}
}
others_begin.push_back(others.size());
unsigned int nbtotal = triangles.size()/3 + quads.size()/4 + others_begin.size()-1;
fout << "<?xml version=\"1.0\"?>" << std::endl;
fout << "<VTKFile type=\"UnstructuredGrid\" version=\"0.1\" byte_order=\"BigEndian\" compressor=\"vtkZLibDataCompressor\">" << std::endl;
fout << "<UnstructuredGrid>" << std::endl;
fout << "<Piece NumberOfPoints=\"" << position.nbElements() << "\" NumberOfCells=\""<< nbtotal << "\">" << std::endl;
fout << "<Points>" << std::endl;
fout << "<DataArray type=\"Float32\" NumberOfComponents=\"3\" Format=\"ascii\">" << std::endl;
{
std::vector<VEC3> bufferV3;
bufferV3.reserve(position.nbElements());
for (unsigned int i = position.begin(); i != position.end(); position.next(i))
bufferV3.push_back(position[i]);
Utils::zlibWriteCompressed((unsigned char*)(&bufferV3[0]),bufferV3.size()*sizeof(VEC3), fout);
}
fout << "</DataArray>" << std::endl;
fout << "</Points>" << std::endl;
fout << "<Cells>" << std::endl;
fout << "<DataArray type=\"Int32\" Name=\"connectivity\" Format=\"ascii\">" << std::endl;
std::vector<int> bufferInt;
bufferInt.reserve(triangles.size()+quads.size()+others.size());
for (unsigned int i=0; i<triangles.size(); i+=3)
{
bufferInt.push_back(triangles[i]);
bufferInt.push_back(triangles[i+1]);
bufferInt.push_back(triangles[i+2]);
}
for (unsigned int i=0; i<quads.size(); i+=4)
{
bufferInt.push_back(quads[i]);
bufferInt.push_back(quads[i+1]);
bufferInt.push_back(quads[i+2]);
bufferInt.push_back(quads[i+3]);
}
for (unsigned int i=1; i<others_begin.size(); ++i)
{
unsigned int beg = others_begin[i-1];
unsigned int end = others_begin[i];
for (unsigned int j=beg; j<end; ++j)
bufferInt.push_back(others[j]);
}
Utils::zlibWriteCompressed((unsigned char*)(&bufferInt[0]),bufferInt.size()*sizeof(int), fout);
fout << "</DataArray>" << std::endl;
fout << "<DataArray type=\"Int32\" Name=\"offsets\" Format=\"ascii\">" ;
bufferInt.clear();
unsigned int offset = 0;
for (unsigned int i=0; i<triangles.size(); i+=3)
{
offset += 3;
bufferInt.push_back(offset);
}
for (unsigned int i=0; i<quads.size(); i+=4)
{
offset += 4;
bufferInt.push_back(offset);
}
for (unsigned int i=1; i<others_begin.size(); ++i)
{
unsigned int length = others_begin[i] - others_begin[i-1];
offset += length;
bufferInt.push_back(offset);
}
Utils::zlibWriteCompressed((unsigned char*)(&bufferInt[0]),bufferInt.size()*sizeof(int), fout);
fout << std::endl << "</DataArray>" << std::endl;
fout << "<DataArray type=\"UInt8\" Name=\"types\" Format=\"ascii\">";
for (unsigned int i=0; i<triangles.size(); i+=3)
bufferInt.push_back(5);
for (unsigned int i=0; i<quads.size(); i+=4)
bufferInt.push_back(9);
for (unsigned int i=1; i<others_begin.size(); ++i)
bufferInt.push_back(7);
Utils::zlibWriteCompressed((unsigned char*)(&bufferInt[0]),bufferInt.size()*sizeof(int), fout);
fout << std::endl << "</DataArray>" << std::endl;
fout << "</Cells>" << std::endl;
fout << "</Piece>" << std::endl;
fout << "</UnstructuredGrid>" << std::endl;
fout << "</VTKFile>" << std::endl;
fout.close();
......@@ -1197,6 +1366,377 @@ bool exportVTU(typename PFP::MAP& map, const VertexAttribute<typename PFP::VEC3>
template <typename PFP>
VTUExporter<PFP>::VTUExporter(typename PFP::MAP& map, const VertexAttribute<typename PFP::VEC3>& position):
m_map(map),m_position(position),
nbtotal(0),noPointData(true),noCellData(true),closed(false)
{
if (map.dimension() != 2)
{
CGoGNerr << "Surface::Export::exportVTU works only with map of dimension 2"<< CGoGNendl;
}
}
template <typename PFP>
bool VTUExporter<PFP>::init(const char* filename)
{
// open file
fout.open(filename, std::ios::out) ;
if (!fout.good())
{
CGoGNerr << "Unable to open file " << filename << CGoGNendl ;
return false;
}
VertexAutoAttribute<unsigned int> indices(m_map,"indices_vert");
unsigned int count=0;
for (unsigned int i = m_position.begin(); i != m_position.end(); m_position.next(i))
{
indices[i] = count++;
}
triangles.reserve(4096);
quads.reserve(4096);
others.reserve(4096);
others_begin.reserve(4096);
bufferTri.reserve(4096);
bufferQuad.reserve(4096);
bufferOther.reserve(4096);
TraversorF<MAP> trav(m_map) ;
for(Dart d = trav.begin(); d != trav.end(); d = trav.next())
{
unsigned int degree = m_map.faceDegree(d);
Dart f=d;
switch(degree)
{
case 3:
bufferTri.push_back(d);
triangles.push_back(indices[f]); f = m_map.phi1(f);
triangles.push_back(indices[f]); f = m_map.phi1(f);
triangles.push_back(indices[f]);
break;
case 4:
bufferQuad.push_back(d);
quads.push_back(indices[f]); f = m_map.phi1(f);
quads.push_back(indices[f]); f = m_map.phi1(f);
quads.push_back(indices[f]); f = m_map.phi1(f);
quads.push_back(indices[f]);
break;
default:
bufferOther.push_back(d);
others_begin.push_back(others.size());
do
{
others.push_back(indices[f]); f = m_map.phi1(f);
} while (f!=d);
break;
}
}
others_begin.push_back(others.size());
nbtotal = triangles.size()/3 + quads.size()/4 + others_begin.size()-1;
fout << "<?xml version=\"1.0\"?>" << std::endl;
fout << "<VTKFile type=\"UnstructuredGrid\" version=\"0.1\" byte_order=\"BigEndian\">" << std::endl;
fout << "<UnstructuredGrid>" << std::endl;
fout << "<Piece NumberOfPoints=\"" << m_position.nbElements() << "\" NumberOfCells=\""<< nbtotal << "\">" << std::endl;
return true;
}
template <typename PFP>
template<typename T>
void VTUExporter<PFP>::addVertexAttributeScal(const VertexAttribute<T>& attrib, const std::string& vtkType, const std::string& name)
{
if (!noCellData)
{
CGoGNerr << "VTUExporter<PFP>::addVertexAttribute: endFaceAttributes before adding VertexAttribute"<< CGoGNendl;
return;
}
if (noPointData)
{
fout << "<PointData Scalars=\"scalars\">" << std::endl;
noPointData = false;
}
if (name.size() != 0)
fout << "<DataArray type=\""<< vtkType <<"\" Name=\""<<name<<"\" Format=\"ascii\">" << std::endl;
else
fout << "<DataArray type=\""<< vtkType <<"\" Name=\""<<attrib.name()<<"\" Format=\"ascii\">" << std::endl;
for (unsigned int i = attrib.begin(); i != attrib.end(); attrib.next(i))
fout << attrib[i] << std::endl;
fout << "</DataArray>" << std::endl;
}
template <typename PFP>
template<typename T>
void VTUExporter<PFP>::addVertexAttributeVect(const VertexAttribute<T>& attrib, const std::string& vtkType, unsigned int nbComp, const std::string& name)
{
if (!noCellData)
{
CGoGNerr << "VTUExporter<PFP>::addVertexAttribute: endFaceAttributes before adding VertexAttribute"<< CGoGNendl;
return;
}
if (noPointData)
{
fout << "<PointData Scalars=\"scalars\">" << std::endl;
noPointData = false;
}
if (nbComp==0)
nbComp = sizeof(T)/(unsigned int)(2*(vtkType[vtkType.size()-1]-'0')); // Float32 -> 2*2=4 bytes Int64 -> 8 bytes
if (name.size() != 0)
fout << "<DataArray type=\""<< vtkType <<"\" Name=\""<<name<<"\" NumberOfComponents=\""<< nbComp <<"\" Format=\"ascii\">" << std::endl;
else
fout << "<DataArray type=\""<< vtkType <<"\" Name=\""<<attrib.name()<<"\" NumberOfComponents=\""<< nbComp <<"\" Format=\"ascii\">" << std::endl;
for (unsigned int i = attrib.begin(); i != attrib.end(); attrib.next(i))
{
const T& a = attrib[i];
for (unsigned int j=0;j<nbComp;++j)
fout << a[j]<< " ";
fout << std::endl;
}
fout << "</DataArray>" << std::endl;
}
template <typename PFP>
void VTUExporter<PFP>::endVertexAttributes()
{
if (!noPointData)
fout << "</PointData>" << std::endl;
noPointData = true;
}