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131 lines
3.7 KiB
131 lines
3.7 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkImageNoiseSource.cxx,v $
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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#include "vtkImageNoiseSource.h"
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#include "vtkImageData.h"
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#include "vtkImageProgressIterator.h"
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#include "vtkMath.h"
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#include "vtkInformation.h"
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#include "vtkInformationVector.h"
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#include "vtkObjectFactory.h"
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#include "vtkStreamingDemandDrivenPipeline.h"
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vtkCxxRevisionMacro(vtkImageNoiseSource, "$Revision: 1.32 $");
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vtkStandardNewMacro(vtkImageNoiseSource);
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//----------------------------------------------------------------------------
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vtkImageNoiseSource::vtkImageNoiseSource()
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{
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this->Minimum = 0.0;
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this->Maximum = 10.0;
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this->WholeExtent[0] = 0; this->WholeExtent[1] = 255;
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this->WholeExtent[2] = 0; this->WholeExtent[3] = 255;
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this->WholeExtent[4] = 0; this->WholeExtent[5] = 0;
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this->SetNumberOfInputPorts(0);
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}
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//----------------------------------------------------------------------------
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void vtkImageNoiseSource::SetWholeExtent(int xMin, int xMax,
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int yMin, int yMax,
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int zMin, int zMax)
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{
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int modified = 0;
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if (this->WholeExtent[0] != xMin)
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{
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modified = 1;
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this->WholeExtent[0] = xMin ;
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}
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if (this->WholeExtent[1] != xMax)
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{
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modified = 1;
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this->WholeExtent[1] = xMax ;
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}
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if (this->WholeExtent[2] != yMin)
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{
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modified = 1;
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this->WholeExtent[2] = yMin ;
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}
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if (this->WholeExtent[3] != yMax)
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{
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modified = 1;
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this->WholeExtent[3] = yMax ;
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}
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if (this->WholeExtent[4] != zMin)
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{
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modified = 1;
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this->WholeExtent[4] = zMin ;
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}
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if (this->WholeExtent[5] != zMax)
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{
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modified = 1;
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this->WholeExtent[5] = zMax ;
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}
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if (modified)
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{
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this->Modified();
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}
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}
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//----------------------------------------------------------------------------
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int vtkImageNoiseSource::RequestInformation (
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vtkInformation * vtkNotUsed(request),
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vtkInformationVector** vtkNotUsed( inputVector ),
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vtkInformationVector *outputVector)
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{
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// get the info objects
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vtkInformation* outInfo = outputVector->GetInformationObject(0);
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outInfo->Set(vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT(),
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this->WholeExtent,6);
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vtkDataObject::SetPointDataActiveScalarInfo(outInfo, VTK_DOUBLE, 1);
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return 1;
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}
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void vtkImageNoiseSource::ExecuteData(vtkDataObject *output)
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{
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vtkImageData *data = this->AllocateOutputData(output);
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if (data->GetScalarType() != VTK_DOUBLE)
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{
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vtkErrorMacro("Execute: This source only outputs doubles");
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}
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vtkImageProgressIterator<double> outIt(data, data->GetExtent(), this, 0);
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// Loop through ouput pixels
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while (!outIt.IsAtEnd())
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{
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double* outSI = outIt.BeginSpan();
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double* outSIEnd = outIt.EndSpan();
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while (outSI != outSIEnd)
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{
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// now process the components
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*outSI = this->Minimum +
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(this->Maximum - this->Minimum) * vtkMath::Random();
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outSI++;
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}
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outIt.NextSpan();
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}
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}
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void vtkImageNoiseSource::PrintSelf(ostream& os, vtkIndent indent)
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{
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this->Superclass::PrintSelf(os,indent);
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os << indent << "Minimum: " << this->Minimum << "\n";
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os << indent << "Maximum: " << this->Maximum << "\n";
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}
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