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/*=========================================================================
Program: Visualization Toolkit
Module: vtkUniformGridAMRDataIterator.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.
=========================================================================*/
#include "vtkUniformGridAMR.h"
#include "vtkUniformGridAMRDataIterator.h"
#include "vtkAMRInformation.h"
#include "vtkAMRDataInternals.h"
#include "vtkObjectFactory.h"
#include "vtkDataObject.h"
#include "vtkUniformGrid.h"
#include "vtkInformation.h"
#include <cassert>
//----------------------------------------------------------------
class AMRIndexIterator: public vtkObject
{
public:
static AMRIndexIterator* New();
vtkTypeMacro(AMRIndexIterator,vtkObject);
void Initialize(const std::vector<int>* numBlocks)
{
assert(numBlocks && numBlocks->size()>=1);
this->Level = 0;
this->Index = -1;
this->NumBlocks = numBlocks;
this->NumLevels = this->GetNumberOfLevels();
this->Next();
}
void Next()
{
this->AdvanceIndex();
//advanc the level either when we are at the right level of out of levels
while(this->Level < this->NumLevels && static_cast<unsigned int>(this->Index)>= this->GetNumberOfBlocks(this->Level+1))
{
this->Level++;
}
}
virtual bool IsDone() { return this->Level>=this->NumLevels;}
unsigned int GetLevel() { return this->Level; }
unsigned int GetId() { return this->Index - this->GetNumberOfBlocks(this->Level);}
virtual unsigned int GetFlatIndex() { return this->Index;}
protected:
AMRIndexIterator(): Level(0), Index(0) {}
~AMRIndexIterator(){};
unsigned int Level;
int Index;
unsigned int NumLevels;
const std::vector<int>* NumBlocks;
virtual void AdvanceIndex() { this->Index++;}
virtual unsigned int GetNumberOfLevels() { return static_cast<unsigned int>(this->NumBlocks->size()-1);};
virtual unsigned int GetNumberOfBlocks(int i)
{
assert(i< static_cast<int>(this->NumBlocks->size()));
return (*this->NumBlocks)[i];
}
};
vtkStandardNewMacro(AMRIndexIterator);
//----------------------------------------------------------------
class AMRLoadedDataIndexIterator: public AMRIndexIterator
{
public:
static AMRLoadedDataIndexIterator* New();
vtkTypeMacro(AMRLoadedDataIndexIterator,AMRIndexIterator);
AMRLoadedDataIndexIterator(){}
void Initialize(const std::vector<int>* numBlocks, const vtkAMRDataInternals::BlockList* dataBlocks)
{
assert(numBlocks && numBlocks->size()>=1);
this->Level = 0;
this->InternalIdx = -1;
this->NumBlocks = numBlocks;
this->DataBlocks = dataBlocks;
this->NumLevels = this->GetNumberOfLevels();
this->Next();
}
protected:
virtual void AdvanceIndex()
{
this->InternalIdx++;
Superclass::Index = static_cast<size_t>(this->InternalIdx) < this->DataBlocks->size()? (*this->DataBlocks)[this->InternalIdx].Index : 0;
}
virtual bool IsDone() { return static_cast<size_t>(this->InternalIdx) >= this->DataBlocks->size();}
const vtkAMRDataInternals::BlockList* DataBlocks;
int InternalIdx;
private:
AMRLoadedDataIndexIterator(const AMRLoadedDataIndexIterator&); //Not implemented
void operator=(const AMRLoadedDataIndexIterator&); //Not implemented
};
vtkStandardNewMacro(AMRLoadedDataIndexIterator);
//----------------------------------------------------------------
vtkStandardNewMacro(vtkUniformGridAMRDataIterator);
vtkUniformGridAMRDataIterator::vtkUniformGridAMRDataIterator()
{
this->Information = vtkSmartPointer<vtkInformation>::New();
this->AMR = NULL;
this->AMRData = NULL;
this->AMRInfo = NULL;
}
vtkUniformGridAMRDataIterator::~vtkUniformGridAMRDataIterator()
{
}
vtkDataObject* vtkUniformGridAMRDataIterator::GetCurrentDataObject()
{
unsigned int level, id;
this->GetCurrentIndexPair(level,id);
vtkDataObject* obj = this->AMR->GetDataSet(level,id);
return obj;
}
vtkInformation* vtkUniformGridAMRDataIterator::GetCurrentMetaData()
{
double bounds[6];
this->AMRInfo->GetBounds(this->GetCurrentLevel(), this->GetCurrentIndex(), bounds);
this->Information->Set(vtkDataObject::BOUNDING_BOX(),bounds,6);
return this->Information;
}
unsigned int vtkUniformGridAMRDataIterator::GetCurrentFlatIndex()
{
return this->Iter->GetFlatIndex();
}
void vtkUniformGridAMRDataIterator::GetCurrentIndexPair(unsigned int& level, unsigned int& id)
{
level = this->Iter->GetLevel();
id = this->Iter->GetId();
}
unsigned int vtkUniformGridAMRDataIterator::GetCurrentLevel()
{
unsigned int level, id;
this->GetCurrentIndexPair(level,id);
return level;
}
unsigned int vtkUniformGridAMRDataIterator::GetCurrentIndex()
{
unsigned int level, id;
this->GetCurrentIndexPair(level,id);
return id;
}
void vtkUniformGridAMRDataIterator::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
}
void vtkUniformGridAMRDataIterator::GoToFirstItem()
{
if(!this->DataSet)
{
return;
}
this->AMR = vtkUniformGridAMR::SafeDownCast(this->DataSet);
this->AMRInfo = this->AMR->GetAMRInfo();
this->AMRData = this->AMR->GetAMRData();
if(this->AMRInfo)
{
if(this->GetSkipEmptyNodes())
{
vtkSmartPointer<AMRLoadedDataIndexIterator> itr = vtkSmartPointer<AMRLoadedDataIndexIterator>::New();
itr->Initialize(&this->AMRInfo->GetNumBlocks(), &this->AMR->GetAMRData()->GetAllBlocks());
this->Iter = itr;
}
else
{
this->Iter = vtkSmartPointer<AMRIndexIterator>::New();
this->Iter->Initialize(&this->AMRInfo->GetNumBlocks());
}
}
}
void vtkUniformGridAMRDataIterator::GoToNextItem()
{
this->Iter->Next();
}
//----------------------------------------------------------------------------
int vtkUniformGridAMRDataIterator::IsDoneWithTraversal()
{
return (!this->Iter) || this->Iter->IsDone();
}
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