#include "vtkDatasetToImageGenerator.h"
#include "vtkObjectFactory.h"

#include <vtkImageData.h>


vtkCxxRevisionMacro(vtkDatasetToImageGenerator, "$Revision: 1.1 $");
vtkStandardNewMacro(vtkDatasetToImageGenerator);

vtkDatasetToImageGenerator::vtkDatasetToImageGenerator()
{
  this->Input = 0;
  this->Output = vtkImageData::New();
}

vtkDatasetToImageGenerator::~vtkDatasetToImageGenerator()
{
  this->Output->Delete();
}


void vtkDatasetToImageGenerator::Update()
{

  if (!this->Input || !this->Output)
    return;
  
  
  double bounds[6];
  this->Input->GetBounds(bounds);
  int dim[3] = {128, 128, 128};
  
  double spacing[3] = {1,1,1};
  spacing[0] = (bounds[1] - bounds[0])/(double)dim[0];
  spacing[1] = (bounds[3] - bounds[2])/(double)dim[1];
  spacing[2] = (bounds[5] - bounds[4])/(double)dim[2];
  
  std::cout<<"bounds : "
	   <<bounds[0]<<" "
	   <<bounds[1]<<" "
	   <<bounds[2]<<" "
	   <<bounds[3]<<" "
	   <<bounds[4]<<" "
	   <<bounds[5]<<" "
	   <<std::endl;
  this->Output->SetScalarTypeToUnsignedChar();
  this->Output->SetDimensions (dim[0],
			       dim[1],
			       dim[2]
			       );
  
  this->Output->SetOrigin (bounds[0],
			   bounds[2],
			   bounds[4]
			   );
  this->Output->SetSpacing (spacing[0],
			    spacing[1],
			    spacing[2]
			    );
  
  this->Output->AllocateScalars();
  this->Output->Update();
  
  
  
}