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272 lines
8.2 KiB
272 lines
8.2 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkImageChangeInformation.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 "vtkImageChangeInformation.h"
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#include "vtkImageData.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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#include "vtkPointData.h"
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vtkCxxRevisionMacro(vtkImageChangeInformation, "$Revision: 1.23 $");
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vtkStandardNewMacro(vtkImageChangeInformation);
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//----------------------------------------------------------------------------
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vtkImageChangeInformation::vtkImageChangeInformation()
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{
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this->CenterImage = 0;
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for (int i = 0; i < 3; i++)
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{
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this->OutputExtentStart[i] = VTK_INT_MAX;
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this->ExtentTranslation[i] = 0;
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this->FinalExtentTranslation[i] = VTK_INT_MAX;
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this->OutputSpacing[i] = VTK_DOUBLE_MAX;
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this->SpacingScale[i] = 1.0;
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this->OutputOrigin[i] = VTK_DOUBLE_MAX;
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this->OriginScale[i] = 1.0;
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this->OriginTranslation[i] = 0.0;
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}
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// There is an optional second input.
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this->SetNumberOfInputPorts(2);
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}
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// Specify a source object at a specified table location.
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void vtkImageChangeInformation::SetInformationInput(vtkImageData *pd)
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{
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this->SetInput(1, pd);
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}
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// Get a pointer to a source object at a specified table location.
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vtkImageData *vtkImageChangeInformation::GetInformationInput()
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{
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if (this->GetNumberOfInputConnections(1) < 1)
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{
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return 0;
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}
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return vtkImageData::SafeDownCast(this->GetExecutive()->GetInputData(1, 0));
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}
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//----------------------------------------------------------------------------
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vtkImageChangeInformation::~vtkImageChangeInformation()
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{
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}
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//----------------------------------------------------------------------------
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void vtkImageChangeInformation::PrintSelf(ostream& os, vtkIndent indent)
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{
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this->Superclass::PrintSelf(os,indent);
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os << indent << "CenterImage : "
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<< (this->CenterImage ? "On":"Off") << endl;
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os << indent << "OutputExtentStart: ("
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<< this->OutputExtentStart[0] << ","
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<< this->OutputExtentStart[1] << ","
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<< this->OutputExtentStart[2] << ")" << endl;
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os << indent << "ExtentTranslation: ("
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<< this->ExtentTranslation[0] << ","
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<< this->ExtentTranslation[1] << ","
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<< this->ExtentTranslation[2] << ")" << endl;
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os << indent << "OutputSpacing: ("
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<< this->OutputSpacing[0] << ","
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<< this->OutputSpacing[1] << ","
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<< this->OutputSpacing[2] << ")" << endl;
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os << indent << "SpacingScale: ("
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<< this->SpacingScale[0] << ","
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<< this->SpacingScale[1] << ","
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<< this->SpacingScale[2] << ")" << endl;
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os << indent << "OutputOrigin: ("
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<< this->OutputOrigin[0] << ","
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<< this->OutputOrigin[1] << ","
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<< this->OutputOrigin[2] << ")" << endl;
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os << indent << "OriginScale: ("
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<< this->OriginScale[0] << ","
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<< this->OriginScale[1] << ","
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<< this->OriginScale[2] << ")" << endl;
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os << indent << "OriginTranslation: ("
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<< this->OriginTranslation[0] << ","
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<< this->OriginTranslation[1] << ","
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<< this->OriginTranslation[2] << ")" << endl;
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}
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//----------------------------------------------------------------------------
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// Change the information
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int vtkImageChangeInformation::RequestInformation (
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vtkInformation * vtkNotUsed(request),
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vtkInformationVector **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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vtkInformation *inInfo = inputVector[0]->GetInformationObject(0);
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int i;
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int extent[6], inExtent[6];
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double spacing[3], origin[3];
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inInfo->Get(vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT(),inExtent);
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vtkImageData *infoInput = this->GetInformationInput();
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if (infoInput)
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{
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// If there is an InformationInput, it is set as a second input
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vtkInformation *in2Info = inputVector[1]->GetInformationObject(0);
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infoInput->GetOrigin(origin);
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infoInput->GetSpacing(spacing);
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in2Info->Get(vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT(),extent);
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for (i = 0; i < 3; i++)
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{
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extent[2*i+1] = extent[2*i] - inExtent[2*i] + inExtent[2*i+1];
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}
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}
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else
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{
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inInfo->Get(vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT(),extent);
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inInfo->Get(vtkDataObject::ORIGIN(), origin);
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inInfo->Get(vtkDataObject::SPACING(), spacing);
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}
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for (i = 0; i < 3; i++)
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{
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if (this->OutputSpacing[i] != VTK_DOUBLE_MAX)
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{
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spacing[i] = this->OutputSpacing[i];
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}
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if (this->OutputOrigin[i] != VTK_DOUBLE_MAX)
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{
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origin[i] = this->OutputOrigin[i];
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}
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if (this->OutputExtentStart[i] != VTK_INT_MAX)
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{
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extent[2*i+1] += this->OutputExtentStart[i] - extent[2*i];
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extent[2*i] = this->OutputExtentStart[i];
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}
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}
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if (this->CenterImage)
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{
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for (i = 0; i < 3; i++)
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{
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origin[i] = -(extent[2*i] + extent[2*i+1])*spacing[i]/2;
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}
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}
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for (i = 0; i < 3; i++)
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{
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spacing[i] = spacing[i]*this->SpacingScale[i];
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origin[i] = origin[i]*this->OriginScale[i] + this->OriginTranslation[i];
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extent[2*i] = extent[2*i] + this->ExtentTranslation[i];
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extent[2*i+1] = extent[2*i+1] + this->ExtentTranslation[i];
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this->FinalExtentTranslation[i] = extent[2*i] - inExtent[2*i];
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}
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outInfo->Set(vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT(),extent,6);
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outInfo->Set(vtkDataObject::SPACING(),spacing,3);
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outInfo->Set(vtkDataObject::ORIGIN(),origin,3);
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return 1;
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}
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//----------------------------------------------------------------------------
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// This method simply copies by reference the input data to the output.
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int vtkImageChangeInformation::RequestData(
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vtkInformation *vtkNotUsed(request),
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vtkInformationVector **inputVector,
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vtkInformationVector *outputVector)
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{
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if (this->FinalExtentTranslation[0] == VTK_INT_MAX)
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{
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vtkErrorMacro("Bug in code, RequestInformation was not called");
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return 0;
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}
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vtkInformation *inInfo = inputVector[0]->GetInformationObject(0);
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vtkInformation *outInfo = outputVector->GetInformationObject(0);
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int extent[6];
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vtkImageData *inData = vtkImageData::SafeDownCast(
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inInfo->Get(vtkDataObject::DATA_OBJECT()));
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vtkImageData *outData = vtkImageData::SafeDownCast(
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outInfo->Get(vtkDataObject::DATA_OBJECT()));
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// since inData can be larger than update extent.
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inData->GetExtent(extent);
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for (int i = 0; i < 3; ++i)
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{
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extent[i*2] += this->FinalExtentTranslation[i];
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extent[i*2+1] += this->FinalExtentTranslation[i];
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}
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outData->SetExtent(extent);
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outData->GetPointData()->PassData(inData->GetPointData());
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return 1;
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}
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//----------------------------------------------------------------------------
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int vtkImageChangeInformation::RequestUpdateExtent (
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vtkInformation * vtkNotUsed(request),
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vtkInformationVector **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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vtkInformation *inInfo = inputVector[0]->GetInformationObject(0);
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if (this->FinalExtentTranslation[0] == VTK_INT_MAX)
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{
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vtkErrorMacro("Bug in code.");
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return 0;
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}
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int inExt[6];
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outInfo->Get(vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT(), inExt);
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inExt[0] -= this->FinalExtentTranslation[0];
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inExt[1] -= this->FinalExtentTranslation[0];
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inExt[2] -= this->FinalExtentTranslation[1];
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inExt[3] -= this->FinalExtentTranslation[1];
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inExt[4] -= this->FinalExtentTranslation[2];
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inExt[5] -= this->FinalExtentTranslation[2];
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inInfo->Set(vtkStreamingDemandDrivenPipeline::UPDATE_EXTENT(), inExt, 6);
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return 1;
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}
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int vtkImageChangeInformation::FillInputPortInformation(
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int port, vtkInformation *info)
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{
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info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkImageData");
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if (port == 1)
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{
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info->Set(vtkAlgorithm::INPUT_IS_OPTIONAL(), 1);
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}
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return 1;
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}
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