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/* This file is part of the OpenLB library
*
* Copyright (C) 2006, 2007, 2009, 2012, 2015 Mathias J. Krause, Benjamin Förster, Jonas Latt, Tim Dornieden
* E-mail contact: info@openlb.net
* The most recent release of OpenLB can be downloaded at
* <http://www.openlb.net/>
*
* This program 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 2
* of the License, or (at your option) any later version.
*
* This program 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 this program; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/** \file
* A method to write vti data for cuboid geometries
* (only for uniform grids) -- generic implementation.
*/
#ifndef VTI_WRITER_HH
#define VTI_WRITER_HH
#include <fstream>
#include <cstdlib>
#include <iostream>
#include <sstream>
#include <string>
#include <vector>
#include "core/singleton.h"
#include "geometry/cuboid3D.h"
#include "geometry/cuboidGeometry3D.h"
#include "core/blockData3D.h"
#include "core/superData3D.h"
#include "communication/loadBalancer.h"
#include "vtiWriter.h"
namespace olb {
// Initialize Output
template<typename T, typename BaseType>
OstreamManager VTIwriter3D<T,BaseType>::clout("VTIwriter3D");
template<typename T, typename BaseType>
VTIwriter3D<T,BaseType>::VTIwriter3D() {};
template<typename T, typename BaseType>
void VTIwriter3D<T,BaseType>::writeData( std::string const& fName,
std::string const& fieldName, BlockData3D<T,BaseType> const& blockData,
Cuboid3D<T> const& cuboid)
{
// Generate full file path
std::string fullName = getFullName(fName);
writePreamble(fullName, cuboid);
writeBlockData(fullName, fieldName, blockData, cuboid);
writePostScript(fullName);
}
template<typename T, typename BaseType>
void VTIwriter3D<T,BaseType>::writeData( std::string const& fName, std::string const& fieldName,
SuperData3D<T,BaseType> const& superData, CuboidGeometry3D<T> const& cGeometry,
LoadBalancer<T> const& loadBalancer)
{
// Generate full file path
std::string fullName = getFullName(fName);
int rank = 0;
int size = 1;
#ifdef PARALLEL_MODE_MPI
rank = singleton::mpi().getRank();
size = singleton::mpi().getSize();
#endif
if ( rank == 0 ) {
// Write XML Preamble with geometry of surrounding cuboid
writePreamble(fullName, cGeometry.getMotherCuboid());
}
#ifdef PARALLEL_MODE_MPI
singleton::mpi().barrier();
#endif
// Write VTI File in Order of MPI Rank
for (int iRank = 0; iRank < size; ++iRank) {
if (rank == iRank) {
for (int iC = 0; iC < loadBalancer.size(); ++iC) {
// Write data block by block
writeBlockData(fullName, fieldName, superData.get(iC), cGeometry.get(loadBalancer.glob(iC)));
}
}
#ifdef PARALLEL_MODE_MPI
// Wait for current writer process
singleton::mpi().barrier();
#endif
}
//
if (rank == 0) {
// Close All XML Tags
writePostScript(fullName);
}
}
template<typename T, typename BaseType>
void VTIwriter3D<T,BaseType>::writeData( std::string const& fName,
std::string const& fieldName, SuperData3D<T,BaseType> const& superData)
{
writeData(fName, fieldName, superData, superData.getCuboidGeometry(), superData.getLoadBalancer());
}
template<typename T, typename BaseType>
void VTIwriter3D<T,BaseType>::writeBlockData(std::string& fullName, std::string const& fieldName,
BlockData3D<T,BaseType> const& blockData, Cuboid3D<T> const& cuboid)
{
// Open File
std::ofstream fout(fullName.c_str(), std::ios::app);
if (!fout) {
std::cout << "Error: could not open file " << fullName << std::endl;
}
// Calculate extent info from cuboid
// NOTE: origin is actual coordinate, globX needs to be number of starting node
Vector<T,3> origin = cuboid.getOrigin();
T delta = cuboid.getDeltaR();
int globX = (int) (origin[0] / (T)delta);
int globY = (int) (origin[1] / (T)delta);
int globZ = (int) (origin[2] / (T)delta);
fout << "<Piece Extent=\""
<< globX << " " << cuboid.getNx() - 1 + globX << " "
<< globY << " " << cuboid.getNy() - 1 + globY << " "
<< globZ << " " << cuboid.getNz() - 1 + globZ << "\">\n";
// Write Point Data
fout << "<PointData>\n";
// fout << "<DataArray type=\"Float32\" Name=\"" << blockData.getName()
// << "\" NumberOfComponents=\"" << blockData.getSize() << "\">\n";
fout << "<DataArray type=\"Float32\" Name=\"" << fieldName
<< "\" NumberOfComponents=\"" << blockData.getSize() << "\">\n";
// NOTE: Respect ordering of VTI File!
for (int iZ = 0; iZ < cuboid.getNz(); ++iZ) {
for (int iY = 0; iY < cuboid.getNy(); ++iY) {
for (int iX = 0; iX < cuboid.getNx(); ++iX) {
for (int iSize = 0; iSize < blockData.getSize(); ++iSize) {
fout << blockData.get(iX, iY, iZ, iSize) << " ";
}
}
}
fout << "\n";
}
// Close All Tags
fout << "</DataArray>\n";
fout << "</PointData>\n";
fout << "</Piece>\n";
// Close File
fout.close();
}
template<typename T, typename BaseType>
void VTIwriter3D<T,BaseType>::writePreamble(std::string& fullName, Cuboid3D<T> const& cuboid)
{
Vector<T,3> origin = cuboid.getOrigin();
writePreamble(fullName,
cuboid.getNx() - 1, cuboid.getNy() - 1, cuboid.getNz() - 1,
cuboid.getDeltaR(),
origin[0], origin[1], origin[2]);
}
template<typename T, typename BaseType>
void VTIwriter3D<T,BaseType>::writePreamble(std::string& fullName, int nx,
int ny, int nz, T delta, T originX, T originY, T originZ)
{
// Open File
std::ofstream fout(fullName.c_str());
if (!fout) {
clout << "Error: could not open " << fullName << std::endl;
}
// Follow VTI standard
fout << "<?xml version=\"1.0\"?>\n";
fout << "<VTKFile type=\"ImageData\" version=\"0.1\" "
<< "byte_order=\"LittleEndian\">\n";
fout << "<ImageData";
fout << " WholeExtent=\" 0 " << nx << " 0 " << ny << " 0 " << nz << " \"";
fout << " Origin=\"" << originX << " " << originY << " " << originZ << "\"";
fout << " Spacing=\"" << delta << " " << delta << " " << delta << "\">\n";
// Close File
fout.close();
}
template<typename T, typename BaseType>
void VTIwriter3D<T,BaseType>::writePostScript(std::string& fullName)
{
std::ofstream fout(fullName.c_str(), std::ios::app );
if (!fout) {
clout << "Error: could not open " << fullName << std::endl;
}
fout << "</ImageData>\n";
fout << "</VTKFile>\n";
fout.close();
}
template<typename T, typename BaseType>
std::string VTIwriter3D<T,BaseType>::getFullName(std::string const& fName)
{
return singleton::directories().getVtkOutDir() + fName + ".vti";
}
} // namespace olb
#endif
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