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vtkConvertSelectionDomain.cxx
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vtkConvertSelectionDomain.cxx
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/*=========================================================================
Program: Visualization Toolkit
Module: vtkConvertSelectionDomain.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/*-------------------------------------------------------------------------
Copyright 2008 Sandia Corporation.
Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------*/
#include "vtkConvertSelectionDomain.h"
#include "vtkAbstractArray.h"
#include "vtkAnnotation.h"
#include "vtkAnnotationLayers.h"
#include "vtkCellData.h"
#include "vtkDataSet.h"
#include "vtkDataSetAttributes.h"
#include "vtkGraph.h"
#include "vtkIdList.h"
#include "vtkIdTypeArray.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkMultiBlockDataSet.h"
#include "vtkObjectFactory.h"
#include "vtkPointData.h"
#include "vtkSelection.h"
#include "vtkSelectionNode.h"
#include "vtkSmartPointer.h"
#include "vtkStringArray.h"
#include "vtkTable.h"
#include <set>
vtkStandardNewMacro(vtkConvertSelectionDomain);
//------------------------------------------------------------------------------
vtkConvertSelectionDomain::vtkConvertSelectionDomain()
{
this->SetNumberOfInputPorts(3);
this->SetNumberOfOutputPorts(2);
}
//------------------------------------------------------------------------------
vtkConvertSelectionDomain::~vtkConvertSelectionDomain() = default;
//------------------------------------------------------------------------------
static void vtkConvertSelectionDomainFindDomains(
vtkDataSetAttributes* dsa, std::set<vtkStdString>& domains)
{
if (dsa->GetAbstractArray("domain"))
{
vtkStringArray* domainArr = vtkArrayDownCast<vtkStringArray>(dsa->GetAbstractArray("domain"));
if (!domainArr)
{
return; // Do nothing if the array isn't a string array
}
vtkIdType numTuples = domainArr->GetNumberOfTuples();
for (vtkIdType i = 0; i < numTuples; ++i)
{
vtkStdString d = domainArr->GetValue(i);
if (domains.count(d) == 0)
{
domains.insert(d);
}
}
}
else if (dsa->GetPedigreeIds() && dsa->GetPedigreeIds()->GetName())
{
domains.insert(dsa->GetPedigreeIds()->GetName());
}
}
static void vtkConvertSelectionDomainConvertAnnotationDomain(vtkAnnotation* annIn,
vtkAnnotation* annOut, std::set<vtkStdString>& domains1, std::set<vtkStdString>& domains2,
vtkDataSetAttributes* dsa1, vtkDataSetAttributes* dsa2, int fieldType1, int fieldType2,
vtkMultiBlockDataSet* maps)
{
vtkSelection* inputSel = annIn->GetSelection();
vtkSmartPointer<vtkSelection> outputSel = vtkSmartPointer<vtkSelection>::New();
// Iterate over all input selections
for (unsigned int c = 0; c < inputSel->GetNumberOfNodes(); ++c)
{
vtkSelectionNode* curInput = inputSel->GetNode(c);
vtkSmartPointer<vtkSelectionNode> curOutput = vtkSmartPointer<vtkSelectionNode>::New();
vtkAbstractArray* inArr = curInput->GetSelectionList();
// Start with a shallow copy of the input selection.
curOutput->ShallowCopy(curInput);
// I don't know how to handle this type of selection,
// so pass it through.
if (!inArr || !inArr->GetName() || curInput->GetContentType() != vtkSelectionNode::PEDIGREEIDS)
{
outputSel->AddNode(curOutput);
continue;
}
// If the selection already matches, we are done.
if (domains1.count(inArr->GetName()) > 0)
{
curOutput->SetFieldType(fieldType1);
outputSel->AddNode(curOutput);
continue;
}
if (domains2.count(inArr->GetName()) > 0)
{
curOutput->SetFieldType(fieldType2);
outputSel->AddNode(curOutput);
continue;
}
// Select the correct source and destination mapping arrays.
vtkAbstractArray* fromArr = nullptr;
vtkAbstractArray* toArr = nullptr;
unsigned int numMaps = maps->GetNumberOfBlocks();
for (unsigned int i = 0; i < numMaps; ++i)
{
fromArr = nullptr;
toArr = nullptr;
vtkTable* table = vtkTable::SafeDownCast(maps->GetBlock(i));
if (table)
{
fromArr = table->GetColumnByName(inArr->GetName());
std::set<vtkStdString>::iterator it, itEnd;
if (dsa1)
{
it = domains1.begin();
itEnd = domains1.end();
for (; it != itEnd; ++it)
{
toArr = table->GetColumnByName(it->c_str());
if (toArr)
{
curOutput->SetFieldType(fieldType1);
break;
}
}
}
if (!toArr && dsa2)
{
it = domains2.begin();
itEnd = domains2.end();
for (; it != itEnd; ++it)
{
toArr = table->GetColumnByName(it->c_str());
if (toArr)
{
curOutput->SetFieldType(fieldType2);
break;
}
}
}
}
if (fromArr && toArr)
{
break;
}
}
// Cannot do the conversion, so don't pass this selection
// to the output.
if (!fromArr || !toArr)
{
continue;
}
// Lookup values in the input selection and map them
// through the table to the output selection.
vtkIdType numTuples = inArr->GetNumberOfTuples();
vtkSmartPointer<vtkAbstractArray> outArr;
outArr.TakeReference(vtkAbstractArray::CreateArray(toArr->GetDataType()));
outArr->SetName(toArr->GetName());
vtkSmartPointer<vtkIdList> ids = vtkSmartPointer<vtkIdList>::New();
for (vtkIdType i = 0; i < numTuples; ++i)
{
fromArr->LookupValue(inArr->GetVariantValue(i), ids);
vtkIdType numIds = ids->GetNumberOfIds();
for (vtkIdType j = 0; j < numIds; ++j)
{
outArr->InsertNextTuple(ids->GetId(j), toArr);
}
}
curOutput->SetSelectionList(outArr);
outputSel->AddNode(curOutput);
}
// Make sure there is at least something in the output selection.
if (outputSel->GetNumberOfNodes() == 0)
{
vtkSmartPointer<vtkSelectionNode> node = vtkSmartPointer<vtkSelectionNode>::New();
node->SetContentType(vtkSelectionNode::INDICES);
vtkSmartPointer<vtkIdTypeArray> inds = vtkSmartPointer<vtkIdTypeArray>::New();
node->SetSelectionList(inds);
outputSel->AddNode(node);
}
annOut->ShallowCopy(annIn);
annOut->SetSelection(outputSel);
}
//------------------------------------------------------------------------------
int vtkConvertSelectionDomain::RequestData(vtkInformation* vtkNotUsed(request),
vtkInformationVector** inputVector, vtkInformationVector* outputVector)
{
// Retrieve the input and output.
vtkInformation* inInfo = inputVector[0]->GetInformationObject(0);
vtkDataObject* input = inInfo->Get(vtkDataObject::DATA_OBJECT());
vtkAnnotationLayers* inputAnn = vtkAnnotationLayers::SafeDownCast(input);
vtkInformation* outInfo = outputVector->GetInformationObject(0);
vtkDataObject* output = outInfo->Get(vtkDataObject::DATA_OBJECT());
vtkAnnotationLayers* outputAnn = vtkAnnotationLayers::SafeDownCast(output);
outInfo = outputVector->GetInformationObject(1);
vtkSelection* outputCurrentSel =
vtkSelection::SafeDownCast(outInfo->Get(vtkDataObject::DATA_OBJECT()));
// If we have no mapping table, we are done.
vtkInformation* mapInfo = inputVector[1]->GetInformationObject(0);
vtkInformation* dataInfo = inputVector[2]->GetInformationObject(0);
if (!dataInfo || !mapInfo)
{
output->ShallowCopy(input);
return 1;
}
// If the input is instead a vtkSelection, wrap it in a vtkAnnotationLayers
// object so it can be used uniformly in the function.
bool createdInput = false;
if (!inputAnn)
{
vtkSelection* inputSel = vtkSelection::SafeDownCast(input);
inputAnn = vtkAnnotationLayers::New();
inputAnn->SetCurrentSelection(inputSel);
vtkSelection* outputSel = vtkSelection::SafeDownCast(output);
outputAnn = vtkAnnotationLayers::New();
outputAnn->SetCurrentSelection(outputSel);
createdInput = true;
}
vtkMultiBlockDataSet* maps =
vtkMultiBlockDataSet::SafeDownCast(mapInfo->Get(vtkDataObject::DATA_OBJECT()));
vtkDataObject* data = dataInfo->Get(vtkDataObject::DATA_OBJECT());
vtkDataSetAttributes* dsa1 = nullptr;
int fieldType1 = 0;
vtkDataSetAttributes* dsa2 = nullptr;
int fieldType2 = 0;
if (vtkDataSet::SafeDownCast(data))
{
dsa1 = vtkDataSet::SafeDownCast(data)->GetPointData();
fieldType1 = vtkSelectionNode::POINT;
dsa2 = vtkDataSet::SafeDownCast(data)->GetCellData();
fieldType2 = vtkSelectionNode::CELL;
}
else if (vtkGraph::SafeDownCast(data))
{
dsa1 = vtkGraph::SafeDownCast(data)->GetVertexData();
fieldType1 = vtkSelectionNode::VERTEX;
dsa2 = vtkGraph::SafeDownCast(data)->GetEdgeData();
fieldType2 = vtkSelectionNode::EDGE;
}
else if (vtkTable::SafeDownCast(data))
{
dsa1 = vtkDataSetAttributes::SafeDownCast(vtkTable::SafeDownCast(data)->GetRowData());
fieldType1 = vtkSelectionNode::ROW;
}
std::set<vtkStdString> domains1;
std::set<vtkStdString> domains2;
if (dsa1)
{
vtkConvertSelectionDomainFindDomains(dsa1, domains1);
}
if (dsa2)
{
vtkConvertSelectionDomainFindDomains(dsa2, domains2);
}
for (unsigned int a = 0; a < inputAnn->GetNumberOfAnnotations(); ++a)
{
vtkSmartPointer<vtkAnnotation> ann = vtkSmartPointer<vtkAnnotation>::New();
vtkConvertSelectionDomainConvertAnnotationDomain(inputAnn->GetAnnotation(a), ann, domains1,
domains2, dsa1, dsa2, fieldType1, fieldType2, maps);
outputAnn->AddAnnotation(ann);
}
if (inputAnn->GetCurrentAnnotation())
{
vtkSmartPointer<vtkAnnotation> ann = vtkSmartPointer<vtkAnnotation>::New();
vtkConvertSelectionDomainConvertAnnotationDomain(inputAnn->GetCurrentAnnotation(), ann,
domains1, domains2, dsa1, dsa2, fieldType1, fieldType2, maps);
outputAnn->SetCurrentAnnotation(ann);
}
else
{
outputAnn->SetCurrentAnnotation(nullptr);
}
// Copy current selection to the second output
if (outputAnn->GetCurrentSelection())
{
outputCurrentSel->ShallowCopy(outputAnn->GetCurrentSelection());
}
if (createdInput)
{
inputAnn->Delete();
outputAnn->Delete();
}
return 1;
}
//------------------------------------------------------------------------------
int vtkConvertSelectionDomain::FillInputPortInformation(int port, vtkInformation* info)
{
if (port == 0)
{
info->Remove(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE());
info->Append(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkSelection");
info->Append(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkAnnotationLayers");
}
else if (port == 1)
{
info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkMultiBlockDataSet");
}
else if (port == 2)
{
info->Set(vtkAlgorithm::INPUT_IS_OPTIONAL(), 1);
info->Remove(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE());
info->Append(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkDataSet");
info->Append(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkTable");
info->Append(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkGraph");
}
return 1;
}
//------------------------------------------------------------------------------
int vtkConvertSelectionDomain::FillOutputPortInformation(int port, vtkInformation* info)
{
this->Superclass::FillOutputPortInformation(port, info);
if (port == 1)
{
info->Set(vtkDataObject::DATA_TYPE_NAME(), "vtkSelection");
}
return 1;
}
//------------------------------------------------------------------------------
void vtkConvertSelectionDomain::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
}