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Added tensor output to VTK point data. #36

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Apr 8, 2016
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Added tensor output to VTK point data. #36

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229 changes: 69 additions & 160 deletions FileIO/MeshIO/LegacyVtkInterface.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -27,11 +27,11 @@
#include "rf_REACT_GEM.h"
#endif // GEM_REACT

#include <string>
#include <iomanip>
#include <string>

#include "Output.h"
#include "FileTools.h"
#include "Output.h"

using namespace std;

Expand Down Expand Up @@ -864,7 +864,7 @@ void LegacyVtkInterface::WriteVTKCellData(fstream& vtk_file) const
10/2006 WW Output secondary variables
08/2008 OK MAT values
06/2009 WW/OK WriteELEVelocity for different coordinate systems
11/2012 WW Rewrite this fucntion in order to have a correct vec/teosor output
11/2012 WW Rewrite this fucntion in order to have a correct vec/tensor output
**************************************************************************/
void LegacyVtkInterface::WriteVTKDataArrays(fstream& vtk_file) const
{
Expand All @@ -886,180 +886,88 @@ void LegacyVtkInterface::WriteVTKDataArrays(fstream& vtk_file) const

for (size_t k = 0; k < numPointArrays; k++)
{
bool toNext = false;

// Write X, Y and Z arrays as vectors
// WW. 11.2012. if(k + 1 < numPointArrays)
// Write tensors
// XX, XY, YY, ZZ, XZ, YZ must be present in that order
if (_pointArrayNames[k].find("_XX") != string::npos)
{
if (_pointArrayNames[k].find("_X") != string::npos
&& (k + 1 < numPointArrays && _pointArrayNames[k + 1].find("_Y") != string::npos))
{
string arrayName = _pointArrayNames[k];
CRFProcess* pcs = PCSGet(arrayName, true);
if (!pcs)
continue;
string arrayName = _pointArrayNames[k];
CRFProcess* pcs = PCSGet(arrayName, true);
if (!pcs)
continue;

if (pcs->getProcessType() == FiniteElement::FLUID_MOMENTUM) // 23.11.2012. WW
{
vec_val_idx[0] = pcs->GetNodeValueIndex(arrayName) + 1;
for (int kk = 1; kk < space_dim; kk++)
{
vec_val_idx[kk] = vec_val_idx[kk - 1] + 2;
}
}
else
{
vec_val_idx[0] = pcs->GetNodeValueIndex(arrayName);
for (int kk = 1; kk < space_dim; kk++)
{
vec_val_idx[kk] = vec_val_idx[0] + kk;
}
}
tensor_val_idx[0] = pcs->GetNodeValueIndex(arrayName);
for (int kk = 1; kk < tensor_com; kk++)
{
tensor_val_idx[kk] = tensor_val_idx[0] + kk;
}

std::cout << "ArrayName: " << arrayName << "\n";
vtk_file << "VECTORS " << arrayName.substr(0, arrayName.size() - 2) << " double"
<< "\n";
std::string fieldName = arrayName.substr(0, arrayName.size() - 3);
std::cout << "Writing VTK tensor: " << fieldName << "\n";
vtk_file << "TENSORS " << fieldName << " double"
<< "\n";

for (long j = 0l; j < numNodes; j++)
{
const long node_id = _mesh->nod_vector[j]->GetIndex();
for (int kk = 0; kk < space_dim; kk++)
{
vtk_file << pcs->GetNodeValue(node_id, vec_val_idx[kk]) << " ";
}
for (long j = 0l; j < numNodes; j++)
{
const long node_id = _mesh->nod_vector[j]->GetIndex();
double vector6[6];
for (size_t component = 0; component < tensor_com; ++component)
vector6[component] = pcs->GetNodeValue(node_id, tensor_val_idx[component]);

vtk_file << vector6[0] << " " << vector6[1] << " " << vector6[4] << "\n";
vtk_file << vector6[1] << " " << vector6[2] << " " << vector6[5] << "\n";
vtk_file << vector6[4] << " " << vector6[5] << " " << vector6[3] << "\n";
}

for (int kk = space_dim; kk < 3; kk++)
{
vtk_file << "0.0 ";
}
k += tensor_com - 1;
}
else if (_pointArrayNames[k].find("_X") != string::npos
&& (k + 1 < numPointArrays && _pointArrayNames[k + 1].find("_Y") != string::npos))
{
string arrayName = _pointArrayNames[k];
CRFProcess* pcs = PCSGet(arrayName, true);
if (!pcs)
continue;

vtk_file << "\n";
if (pcs->getProcessType() == FiniteElement::FLUID_MOMENTUM) // 23.11.2012. WW
{
vec_val_idx[0] = pcs->GetNodeValueIndex(arrayName) + 1;
for (int kk = 1; kk < space_dim; kk++)
{
vec_val_idx[kk] = vec_val_idx[kk - 1] + 2;
}

k += space_dim;
toNext = true;
}
// Write tensors as Eigenvectors
// XX, XY, YY, ZZ, XZ, YZ must be present in that order
else if (_pointArrayNames[k].find("_XX") != string::npos)
else
{
string arrayName = _pointArrayNames[k];
CRFProcess* pcs = PCSGet(arrayName, true);
if (!pcs)
continue;
vec_val_idx[0] = pcs->GetNodeValueIndex(arrayName);
for (int kk = 1; kk < space_dim; kk++)
{
vec_val_idx[kk] = vec_val_idx[0] + kk;
}
}

std::cout << "Writing VTK vector: " << arrayName << "\n";
vtk_file << "VECTORS " << arrayName << " double"
<< "\n";

tensor_val_idx[0] = pcs->GetNodeValueIndex(arrayName);
for (int kk = 1; kk < tensor_com; kk++)
for (long j = 0l; j < numNodes; j++)
{
const long node_id = _mesh->nod_vector[j]->GetIndex();
for (int kk = 0; kk < space_dim; kk++)
{
tensor_val_idx[kk] = tensor_val_idx[0] + kk;
vtk_file << pcs->GetNodeValue(node_id, vec_val_idx[kk]) << " ";
}

for (int kk = space_dim; kk < 3; kk++)
{
#if defined(VTK_FOUND) && defined(OGS_USE_QT)

vector<vector<double> > eigenvectors_1, eigenvectors_2, eigenvectors_3;

// Iterate over nodes
for (long j = 0l; j < numNodes; j++)
{
const long node_id = _mesh->nod_vector[j]->GetIndex();
double vector6[6];
// Iterate over the tensor 6 arrays
for (size_t component = 0; component < tensor_com; ++component)
{
vector6[component] = pcs->GetNodeValue(node_id, tensor_val_idx[component]);
// std::cout << "vector " << component << " : " << vector6[component] << "\n";
}

double* tensor[3];
double tensor0[3];
double tensor1[3];
double tensor2[3];
tensor[0] = tensor0;
tensor[1] = tensor1;
tensor[2] = tensor2;

if (tensor_com == 6)
{
tensor0[0] = vector6[0];
tensor0[1] = vector6[1];
tensor0[2] = vector6[4];
tensor1[0] = vector6[1];
tensor1[1] = vector6[2];
tensor1[2] = vector6[5];
tensor2[0] = vector6[4];
tensor2[1] = vector6[5];
tensor2[2] = vector6[3];
}
else
{
continue;
// std::cout << " To be finished / " << "\n";
}
// std::cout << "TensorMat:" << "\n";
// std::cout << tensor0[0] << " " << tensor0[1] << " " << tensor0[2] << "\n";
// std::cout << tensor1[0] << " " << tensor1[1] << " " << tensor1[2] << "\n";
// std::cout << tensor2[0] << " " << tensor2[1] << " " << tensor2[2] << "\n";
// std::cout << "\n" << "\n";

double* eigenvectors[3];
double eigenvectors0[3];
double eigenvectors1[3];
double eigenvectors2[3];

eigenvectors[0] = eigenvectors0;
eigenvectors[1] = eigenvectors1;
eigenvectors[2] = eigenvectors2;
double eigenvalues[3];

vtkMath::Jacobi(tensor, eigenvalues, eigenvectors);

// Multiply normalized eigenvector with eigenvalues
std::vector<double> eigenvector_1, eigenvector_2, eigenvector_3;
eigenvector_1.push_back(eigenvectors[0][0] * eigenvalues[0]);
eigenvector_1.push_back(eigenvectors[0][1] * eigenvalues[1]);
eigenvector_1.push_back(eigenvectors[0][2] * eigenvalues[2]);
eigenvectors_1.push_back(eigenvector_1);
eigenvector_2.push_back(eigenvectors[1][0] * eigenvalues[0]);
eigenvector_2.push_back(eigenvectors[1][1] * eigenvalues[1]);
eigenvector_2.push_back(eigenvectors[1][2] * eigenvalues[2]);
eigenvectors_2.push_back(eigenvector_2);
eigenvector_3.push_back(eigenvectors[2][0] * eigenvalues[0]);
eigenvector_3.push_back(eigenvectors[2][1] * eigenvalues[1]);
eigenvector_3.push_back(eigenvectors[2][2] * eigenvalues[2]);
eigenvectors_3.push_back(eigenvector_3);
}

vtk_file << "VECTORS " << arrayName.substr(0, arrayName.size() - 3) << "_Eigenvector_1"
<< " double"
<< "\n";
for (vector<vector<double> >::iterator it = eigenvectors_1.begin(); it != eigenvectors_1.end();
++it)
vtk_file << (*it)[0] << " " << (*it)[1] << " " << (*it)[2] << "\n";

vtk_file << "VECTORS " << arrayName.substr(0, arrayName.size() - 3) << "_Eigenvector_2"
<< " double"
<< "\n";
for (vector<vector<double> >::iterator it = eigenvectors_2.begin(); it != eigenvectors_2.end();
++it)
vtk_file << (*it)[0] << " " << (*it)[1] << " " << (*it)[2] << "\n";

vtk_file << "VECTORS " << arrayName.substr(0, arrayName.size() - 3) << "_Eigenvector_3"
<< " double"
<< "\n";
for (vector<vector<double> >::iterator it = eigenvectors_3.begin(); it != eigenvectors_3.end();
++it)
vtk_file << (*it)[0] << " " << (*it)[1] << " " << (*it)[2] << "\n";
k += tensor_com;
toNext = true;
#else
// TBD
#endif
vtk_file << "0.0 ";
}

vtk_file << "\n";
}
}

if (!toNext)
k += space_dim - 1;
}
else
printScalarArray(_pointArrayNames[k], vtk_file);
}
//======================================================================
Expand Down Expand Up @@ -1274,6 +1182,7 @@ void LegacyVtkInterface::printScalarArray(string arrayName, std::fstream& vtk_fi
int indexDataArray = pcs->GetNodeValueIndex(arrayName);
long numNodes = _mesh->GetNodesNumber(false);

std::cout << "Writing VTK scalar: " << arrayName << "\n";
vtk_file << "SCALARS " << arrayName << " double 1"
<< "\n";
vtk_file << "LOOKUP_TABLE default"
Expand Down