UniformGrid.cpp

#include <vtkCellData.h>
#include <vtkSmartPointer.h>
#include <vtkUniformGrid.h>
#include <vtkUnsignedIntArray.h>
#include <vtkXMLImageDataWriter.h>

int main(int, char *[]) {
  // Create a grid
  vtkSmartPointer<vtkUniformGrid> uniformGrid =
      vtkSmartPointer<vtkUniformGrid>::New();

  unsigned int voxelsPerDimension = 2;

  // The "+1"s are because this is setting how many points are in the grid, and
  // the cells are implied by the points
  uniformGrid->SetDimensions(voxelsPerDimension + 1, voxelsPerDimension + 1,
                             voxelsPerDimension + 1);
  uniformGrid->SetSpacing(1., 1., 1.);
  uniformGrid->SetOrigin(0.0, 0.0, 0.0);

  uniformGrid->BlankCell(0);

  uniformGrid->Modified();

  vtkSmartPointer<vtkXMLImageDataWriter> imageDataWriter =
      vtkXMLImageDataWriter::New();
  imageDataWriter->SetInputData(uniformGrid);
  imageDataWriter->SetFileName("uniformgrid.vti");
  imageDataWriter->Write();

  return EXIT_SUCCESS;
}