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/*=========================================================================
Program: Visualization Toolkit
Module: vtkBridgePointIteratorOnDataSet.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.
=========================================================================*/
// .NAME vtkBridgePointIteratorOnDataSet - Implementation of vtkGenericPointIterator.
// .SECTION Description
// It is just an example that show how to implement the Generic. It is also
// used for testing and evaluating the Generic.
// .SECTION See Also
// vtkGenericPointIterator, vtkBridgeDataSet
#include "vtkBridgePointIteratorOnDataSet.h"
#include <cassert>
#include "vtkBridgeDataSet.h"
#include "vtkDataSet.h"
#include "vtkObjectFactory.h"
vtkStandardNewMacro(vtkBridgePointIteratorOnDataSet);
//-----------------------------------------------------------------------------
// Description:
// Default constructor.
vtkBridgePointIteratorOnDataSet::vtkBridgePointIteratorOnDataSet()
{
this->DataSet = nullptr;
this->Size = 0;
}
//-----------------------------------------------------------------------------
// Description:
// Destructor.
vtkBridgePointIteratorOnDataSet::~vtkBridgePointIteratorOnDataSet()
{
vtkSetObjectBodyMacro(DataSet, vtkBridgeDataSet, 0);
}
//-----------------------------------------------------------------------------
void vtkBridgePointIteratorOnDataSet::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
}
//-----------------------------------------------------------------------------
// Description:
// Move iterator to first position if any (loop initialization).
void vtkBridgePointIteratorOnDataSet::Begin()
{
this->Id = 0;
}
//-----------------------------------------------------------------------------
// Description:
// Is there no point at iterator position? (exit condition).
vtkTypeBool vtkBridgePointIteratorOnDataSet::IsAtEnd()
{
return (this->Id < 0) || (this->Id >= this->Size);
}
//-----------------------------------------------------------------------------
// Description:
// Move iterator to next position. (loop progression).
// \pre not_off: !IsAtEnd()
void vtkBridgePointIteratorOnDataSet::Next()
{
assert("pre: not_off" && !IsAtEnd());
this->Id++;
}
//-----------------------------------------------------------------------------
// Description:
// Point at iterator position.
// \pre not_off: !IsAtEnd()
// \post result_exists: result!=0
double* vtkBridgePointIteratorOnDataSet::GetPosition()
{
assert("pre: not_off" && !IsAtEnd());
double* result = this->DataSet->Implementation->GetPoint(this->Id);
assert("post: result_exists" && result != nullptr);
return result;
}
//-----------------------------------------------------------------------------
// Description:
// Point at iterator position.
// \pre not_off: !IsAtEnd()
// \pre x_exists: x!=0
void vtkBridgePointIteratorOnDataSet::GetPosition(double x[3])
{
assert("pre: not_off" && !IsAtEnd());
assert("pre: x_exists" && x != nullptr);
this->DataSet->Implementation->GetPoint(this->Id, x);
}
//-----------------------------------------------------------------------------
// Description:
// Unique identifier for the point, could be non-contiguous
// \pre not_off: !IsAtEnd()
vtkIdType vtkBridgePointIteratorOnDataSet::GetId()
{
assert("pre: not_off" && !IsAtEnd());
return this->Id;
}
//-----------------------------------------------------------------------------
// Description:
// Used internally by vtkBridgeDataSet.
// Iterate over points of `ds'.
// \pre ds_exists: ds!=0
void vtkBridgePointIteratorOnDataSet::InitWithDataSet(vtkBridgeDataSet* ds)
{
assert("pre: ds_exists" && ds != nullptr);
vtkSetObjectBodyMacro(DataSet, vtkBridgeDataSet, ds);
this->Size = ds->GetNumberOfPoints();
}
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