Method ThreadedRequestData

Imaging/Morphological/vtkImageContinuousDilate3D.cxx:246–287

------------------------------------------------------------------------------ This method contains the first switch statement that calls the correct templated function for the input and output Data types. It handles image boundaries, so the image does not shrink.

// templated function for the input and output Data types.
// It handles image boundaries, so the image does not shrink.
void vtkImageContinuousDilate3D::ThreadedRequestData(vtkInformation* vtkNotUsed(request),
  vtkInformationVector** inputVector, vtkInformationVector* vtkNotUsed(outputVector),
  vtkImageData*** inData, vtkImageData** outData, int outExt[6], int id)
{
  // return if nothing to do
  if (outExt[1] < outExt[0] || outExt[3] < outExt[2] || outExt[5] < outExt[4])
  {
    return;
  }

  int inExt[6], wholeExt[6];
  vtkInformation* inInfo = inputVector[0]->GetInformationObject(0);
  inInfo->Get(vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT(), wholeExt);
  this->InternalRequestUpdateExtent(inExt, outExt, wholeExt);

  vtkDataArray* inArray = this->GetInputArrayToProcess(0, inputVector);
  vtkDataArray* outArray = outData[0]->GetPointData()->GetScalars();

  // Error checking on mask
  vtkImageData* mask = this->Ellipse->GetOutput();
  if (mask->GetScalarType() != VTK_UNSIGNED_CHAR)
  {
    vtkErrorMacro(<< "Execute: mask has wrong scalar type");
    return;
  }

  // this filter expects the output type to be same as input
  if (outData[0]->GetScalarType() != inArray->GetDataType())
  {
    vtkErrorMacro(<< "Execute: output ScalarType, "
                  << vtkImageScalarTypeNameMacro(outData[0]->GetScalarType())
                  << " must match input array data type");
    return;
  }

  vtkImageContinuousDilate3DWorker worker;
  if (!vtkArrayDispatch::Dispatch2SameValueType::Execute(
        inArray, outArray, worker, this, mask, inData[0][0], outData[0], outExt, id))
  {
    worker(inArray, outArray, this, mask, inData[0][0], outData[0], outExt, id);
  }
}

//------------------------------------------------------------------------------
int vtkImageContinuousDilate3D::RequestData(