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How to write scalar filed with VTK in C++?
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I am starting to learn about VTK. I would like to write an scalar field in a .vts file.
The structured grid is being generated with the code included below.
I tried finding information on the user guide and tutorials but I was not able to do it.
// Create a grid
vtkSmartPointer<vtkStructuredGrid> structuredGrid = vtkSmartPointer<vtkStructuredGrid>::New();
vtkSmartPointer<vtkPoints> points = vtkSmartPointer<vtkPoints>::New();
unsigned int numi = 20;
unsigned int numj = 30;
unsigned int numk = 1;
for (unsigned int k = 0; k < numk; k++)
for (unsigned int j = 0; j < numj; j++)
for (unsigned int i = 0; i < numi; i++)
points->InsertNextPoint(i, j, k);
// Specify the dimensions of the grid
structuredGrid->SetDimensions(numi, numj, numk);
structuredGrid->SetPoints(points);
// Write file
vtkSmartPointer<vtkXMLStructuredGridWriter> writer = vtkSmartPointer<vtkXMLStructuredGridWriter>::New();
writer->SetFileName("output.vts");
writer->SetInputData(structuredGrid);
writer->Write();
c++ vtk
asked Mar 23 at 15:35
Mario Lino ValenciaMario Lino Valencia
133
add a comment |
I am starting to learn about VTK. I would like to write an scalar field in a .vts file.
The structured grid is being generated with the code included below.
I tried finding information on the user guide and tutorials but I was not able to do it.
// Create a grid
vtkSmartPointer<vtkStructuredGrid> structuredGrid = vtkSmartPointer<vtkStructuredGrid>::New();
vtkSmartPointer<vtkPoints> points = vtkSmartPointer<vtkPoints>::New();
unsigned int numi = 20;
unsigned int numj = 30;
unsigned int numk = 1;
for (unsigned int k = 0; k < numk; k++)
for (unsigned int j = 0; j < numj; j++)
for (unsigned int i = 0; i < numi; i++)
points->InsertNextPoint(i, j, k);
// Specify the dimensions of the grid
structuredGrid->SetDimensions(numi, numj, numk);
structuredGrid->SetPoints(points);
// Write file
vtkSmartPointer<vtkXMLStructuredGridWriter> writer = vtkSmartPointer<vtkXMLStructuredGridWriter>::New();
writer->SetFileName("output.vts");
writer->SetInputData(structuredGrid);
writer->Write();
c++ vtk
asked Mar 23 at 15:35
Mario Lino ValenciaMario Lino Valencia
133
"I would like to write an scalar field in a .vts file." Isn't a valid question.
– πάντα ῥεῖ
Mar 23 at 15:36
your example code does not include any tries of writing a scalar. Juste create the array and add it with SetScalars.
– Mathieu Westphal
Mar 25 at 9:06
add a comment |
I am starting to learn about VTK. I would like to write an scalar field in a .vts file.
The structured grid is being generated with the code included below.
I tried finding information on the user guide and tutorials but I was not able to do it.
// Create a grid
vtkSmartPointer<vtkStructuredGrid> structuredGrid = vtkSmartPointer<vtkStructuredGrid>::New();
vtkSmartPointer<vtkPoints> points = vtkSmartPointer<vtkPoints>::New();
unsigned int numi = 20;
unsigned int numj = 30;
unsigned int numk = 1;
for (unsigned int k = 0; k < numk; k++)
for (unsigned int j = 0; j < numj; j++)
for (unsigned int i = 0; i < numi; i++)
points->InsertNextPoint(i, j, k);
// Specify the dimensions of the grid
structuredGrid->SetDimensions(numi, numj, numk);
structuredGrid->SetPoints(points);
// Write file
vtkSmartPointer<vtkXMLStructuredGridWriter> writer = vtkSmartPointer<vtkXMLStructuredGridWriter>::New();
writer->SetFileName("output.vts");
writer->SetInputData(structuredGrid);
writer->Write();
c++ vtk
asked Mar 23 at 15:35
Mario Lino ValenciaMario Lino Valencia
133
I am starting to learn about VTK. I would like to write an scalar field in a .vts file.
The structured grid is being generated with the code included below.
I tried finding information on the user guide and tutorials but I was not able to do it.
// Create a grid
vtkSmartPointer<vtkStructuredGrid> structuredGrid = vtkSmartPointer<vtkStructuredGrid>::New();
vtkSmartPointer<vtkPoints> points = vtkSmartPointer<vtkPoints>::New();
unsigned int numi = 20;
unsigned int numj = 30;
unsigned int numk = 1;
for (unsigned int k = 0; k < numk; k++)
for (unsigned int j = 0; j < numj; j++)
for (unsigned int i = 0; i < numi; i++)
points->InsertNextPoint(i, j, k);
// Specify the dimensions of the grid
structuredGrid->SetDimensions(numi, numj, numk);
structuredGrid->SetPoints(points);
// Write file
vtkSmartPointer<vtkXMLStructuredGridWriter> writer = vtkSmartPointer<vtkXMLStructuredGridWriter>::New();
writer->SetFileName("output.vts");
writer->SetInputData(structuredGrid);
writer->Write();
c++ vtk
c++ vtk
asked Mar 23 at 15:35
Mario Lino ValenciaMario Lino Valencia
133
asked Mar 23 at 15:35
Mario Lino ValenciaMario Lino Valencia
133
edited Mar 23 at 15:46
Mario Lino Valencia
asked Mar 23 at 15:35
Mario Lino ValenciaMario Lino Valencia
133
asked Mar 23 at 15:35
Mario Lino ValenciaMario Lino Valencia
133
asked Mar 23 at 15:35
Mario Lino ValenciaMario Lino Valencia
133
133
"I would like to write an scalar field in a .vts file." Isn't a valid question.
– πάντα ῥεῖ
Mar 23 at 15:36
your example code does not include any tries of writing a scalar. Juste create the array and add it with SetScalars.
– Mathieu Westphal
Mar 25 at 9:06
add a comment |
"I would like to write an scalar field in a .vts file." Isn't a valid question.
– πάντα ῥεῖ
Mar 23 at 15:36
your example code does not include any tries of writing a scalar. Juste create the array and add it with SetScalars.
– Mathieu Westphal
Mar 25 at 9:06
"I would like to write an scalar field in a .vts file." Isn't a valid question.
– πάντα ῥεῖ
Mar 23 at 15:36
"I would like to write an scalar field in a .vts file." Isn't a valid question.
– πάντα ῥεῖ
Mar 23 at 15:36
your example code does not include any tries of writing a scalar. Juste create the array and add it with SetScalars.
– Mathieu Westphal
Mar 25 at 9:06
your example code does not include any tries of writing a scalar. Juste create the array and add it with SetScalars.
– Mathieu Westphal
Mar 25 at 9:06
add a comment |
1 Answer
1
active
oldest
votes
Scalar can be set for attribute PointData of vtkStructuredGrid object.
Then vtkXMLStructuredGridWriter object writes structuredGrid in vts file just as this:
vtkFloatArray *scalars = vtkFloatArray::New();
for (int i=0; i< numi*numj*numk; i++) scalars->InsertTuple1(i, 1.0 * i /(numi*numj*numk));
structuredGrid->GetPointData()->SetScalars( scalars );
// Write file
vtkSmartPointer<vtkXMLStructuredGridWriter> writer = vtkSmartPointer<vtkXMLStructuredGridWriter>::New();
writer->SetFileName("output.vts");
writer->SetInputData(structuredGrid);
writer->Write();
answered Mar 24 at 14:13
theArcticOceantheArcticOcean
562
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Scalar can be set for attribute PointData of vtkStructuredGrid object.
Then vtkXMLStructuredGridWriter object writes structuredGrid in vts file just as this:
vtkFloatArray *scalars = vtkFloatArray::New();
for (int i=0; i< numi*numj*numk; i++) scalars->InsertTuple1(i, 1.0 * i /(numi*numj*numk));
structuredGrid->GetPointData()->SetScalars( scalars );
// Write file
vtkSmartPointer<vtkXMLStructuredGridWriter> writer = vtkSmartPointer<vtkXMLStructuredGridWriter>::New();
writer->SetFileName("output.vts");
writer->SetInputData(structuredGrid);
writer->Write();
answered Mar 24 at 14:13
theArcticOceantheArcticOcean
562
add a comment |
Scalar can be set for attribute PointData of vtkStructuredGrid object.
Then vtkXMLStructuredGridWriter object writes structuredGrid in vts file just as this:
vtkFloatArray *scalars = vtkFloatArray::New();
for (int i=0; i< numi*numj*numk; i++) scalars->InsertTuple1(i, 1.0 * i /(numi*numj*numk));
structuredGrid->GetPointData()->SetScalars( scalars );
// Write file
vtkSmartPointer<vtkXMLStructuredGridWriter> writer = vtkSmartPointer<vtkXMLStructuredGridWriter>::New();
writer->SetFileName("output.vts");
writer->SetInputData(structuredGrid);
writer->Write();
answered Mar 24 at 14:13
theArcticOceantheArcticOcean
562
add a comment |
Scalar can be set for attribute PointData of vtkStructuredGrid object.
Then vtkXMLStructuredGridWriter object writes structuredGrid in vts file just as this:
vtkFloatArray *scalars = vtkFloatArray::New();
for (int i=0; i< numi*numj*numk; i++) scalars->InsertTuple1(i, 1.0 * i /(numi*numj*numk));
structuredGrid->GetPointData()->SetScalars( scalars );
// Write file
vtkSmartPointer<vtkXMLStructuredGridWriter> writer = vtkSmartPointer<vtkXMLStructuredGridWriter>::New();
writer->SetFileName("output.vts");
writer->SetInputData(structuredGrid);
writer->Write();
answered Mar 24 at 14:13
theArcticOceantheArcticOcean
562
Scalar can be set for attribute PointData of vtkStructuredGrid object.
Then vtkXMLStructuredGridWriter object writes structuredGrid in vts file just as this:
vtkFloatArray *scalars = vtkFloatArray::New();
for (int i=0; i< numi*numj*numk; i++) scalars->InsertTuple1(i, 1.0 * i /(numi*numj*numk));
structuredGrid->GetPointData()->SetScalars( scalars );
// Write file
vtkSmartPointer<vtkXMLStructuredGridWriter> writer = vtkSmartPointer<vtkXMLStructuredGridWriter>::New();
writer->SetFileName("output.vts");
writer->SetInputData(structuredGrid);
writer->Write();
answered Mar 24 at 14:13
theArcticOceantheArcticOcean
562
answered Mar 24 at 14:13
theArcticOceantheArcticOcean
562
answered Mar 24 at 14:13
theArcticOceantheArcticOcean
562
answered Mar 24 at 14:13
theArcticOceantheArcticOcean
562
562
add a comment |
add a comment |
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"I would like to write an scalar field in a .vts file." Isn't a valid question.
– πάντα ῥεῖ
Mar 23 at 15:36
your example code does not include any tries of writing a scalar. Juste create the array and add it with SetScalars.
– Mathieu Westphal
Mar 25 at 9:06