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/*=========================================================================
Program: Visualization Toolkit
Module: vtkBridgePointIteratorOne.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 vtkBridgePointIteratorOne - 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 "vtkBridgePointIteratorOne.h"
#include <cassert>
#include "vtkObjectFactory.h"
#include "vtkBridgeDataSet.h"
#include "vtkDataSet.h"
vtkStandardNewMacro(vtkBridgePointIteratorOne);
//-----------------------------------------------------------------------------
// Description:
// Default constructor.
vtkBridgePointIteratorOne::vtkBridgePointIteratorOne()
{
this->DataSet=0;
this->cIsAtEnd=1;
}
//-----------------------------------------------------------------------------
// Description:
// Destructor.
vtkBridgePointIteratorOne::~vtkBridgePointIteratorOne()
{
vtkSetObjectBodyMacro(DataSet,vtkBridgeDataSet,0);
}
//-----------------------------------------------------------------------------
void vtkBridgePointIteratorOne::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
}
//-----------------------------------------------------------------------------
// Description:
// Move iterator to first position if any (loop initialization).
void vtkBridgePointIteratorOne::Begin()
{
this->cIsAtEnd=0;
}
//-----------------------------------------------------------------------------
// Description:
// Is there no point at iterator position? (exit condition).
int vtkBridgePointIteratorOne::IsAtEnd()
{
return this->cIsAtEnd;
}
//-----------------------------------------------------------------------------
// Description:
// Move iterator to next position. (loop progression).
// \pre not_off: !IsAtEnd()
void vtkBridgePointIteratorOne::Next()
{
assert("pre: not_off" && !IsAtEnd());
this->cIsAtEnd=1;
}
//-----------------------------------------------------------------------------
// Description:
// Point at iterator position.
// \pre not_off: !IsAtEnd()
// \post result_exists: result!=0
double *vtkBridgePointIteratorOne::GetPosition()
{
assert("pre: not_off" && !IsAtEnd());
double *result=this->DataSet->Implementation->GetPoint(this->Id);
assert("post: result_exists" && result!=0);
return result;
}
//-----------------------------------------------------------------------------
// Description:
// Point at iterator position.
// \pre not_off: !IsAtEnd()
// \pre x_exists: x!=0
void vtkBridgePointIteratorOne::GetPosition(double x[3])
{
assert("pre: not_off" && !IsAtEnd());
assert("pre: x_exists" && x!=0);
this->DataSet->Implementation->GetPoint(this->Id,x);
}
//-----------------------------------------------------------------------------
// Description:
// Unique identifier for the point, could be non-contiguous
// \pre not_off: !IsAtEnd()
vtkIdType vtkBridgePointIteratorOne::GetId()
{
assert("pre: not_off" && !IsAtEnd());
return this->Id;
}
//-----------------------------------------------------------------------------
// Description:
// Used internally by vtkBridgeDataSet.
// Iterate over one point of identifier `id' on dataset `ds'.
// \pre ds_can_be_null: ds!=0 || ds==0
// \pre valid_id: vtkImplies(ds!=0,(id>=0)&&(id<=ds->GetNumberOfCells()))
void vtkBridgePointIteratorOne::InitWithOnePoint(vtkBridgeDataSet *ds,
vtkIdType id)
{
assert("pre: valid_id" &&
((ds==0) || ((id>=0)&&(id<=ds->GetNumberOfCells())))); // A=>B: !A||B
vtkSetObjectBodyMacro(DataSet,vtkBridgeDataSet,ds);
this->Id=id;
}
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