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/*=========================================================================
Program: Visualization Toolkit
Module: vtkHyperOctreeClipCutPointsGrabber.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 "vtkHyperOctreeClipCutPointsGrabber.h"
#include "vtkObjectFactory.h"
#include "vtkOrderedTriangulator.h"
#include <set>
#include "vtkPolygon.h"
#include <cassert>
#include "vtkPoints.h"
vtkStandardNewMacro(vtkHyperOctreeClipCutPointsGrabber);
class vtkHyperOctreeIdSet // Pimpl idiom
{
public:
std::set<vtkIdType> Set;
};
//-----------------------------------------------------------------------------
// Description:
// Default constructor.
vtkHyperOctreeClipCutPointsGrabber::vtkHyperOctreeClipCutPointsGrabber()
{
this->Triangulator=vtkOrderedTriangulator::New();
this->IdSet=new vtkHyperOctreeIdSet;
this->Polygon=0;
this->Dimension=3;
}
//-----------------------------------------------------------------------------
// Description:
// Destructor.
vtkHyperOctreeClipCutPointsGrabber::~vtkHyperOctreeClipCutPointsGrabber()
{
if(this->Triangulator!=0)
{
this->Triangulator->UnRegister(this);
delete this->IdSet;
}
if(this->Polygon!=0)
{
this->Polygon->UnRegister(this);
}
}
//-----------------------------------------------------------------------------
// Description:
// Set the dimension of the hyperoctree.
// \pre valid_dim: (dim==2 || dim==3)
// \post is_set: GetDimension()==dim
void vtkHyperOctreeClipCutPointsGrabber::SetDimension(int dim)
{
assert("pre: valid_dim" && (dim==2 || dim==3));
if(dim!=this->Dimension)
{
if(dim==3)
{
this->Polygon->UnRegister(this);
this->Polygon=0;
this->Triangulator=vtkOrderedTriangulator::New();
this->IdSet=new vtkHyperOctreeIdSet;
}
else
{
this->Triangulator->UnRegister(this);
this->Triangulator=0;
delete this->IdSet;
this->IdSet=0;
this->Polygon=vtkPolygon::New();
}
this->Dimension=dim;
}
assert("post: is_set" && GetDimension()==dim);
}
//-----------------------------------------------------------------------------
// Description:
// Initialize the points insertion scheme.
// Actually, it is just a trick to initialize the IdSet from the filter.
// The IdSet class cannot be shared with the filter because it is a Pimpl.
// It is used by clip,cut and contour filters to build the points
// that lie on an hyperoctant.
// \pre only_in_3d: GetDimension()==3
void vtkHyperOctreeClipCutPointsGrabber::InitPointInsertion()
{
assert("pre: only_in_3d" && this->GetDimension()==3);
this->IdSet->Set.clear();
}
//-----------------------------------------------------------------------------
// Description:
// Insert a point, assuming the point is unique and does not require a
// locator. Tt does not mean it does not use a locator. It just mean that
// some implementation may skip the use of a locator.
void vtkHyperOctreeClipCutPointsGrabber::InsertPoint(vtkIdType ptId,
double pt[3],
double pcoords[3],
int vtkNotUsed(ijk)[3])
{
this->Triangulator->InsertPoint(ptId,pt,pcoords,0);
}
//-----------------------------------------------------------------------------
// Description:
// Insert a point using a locator.
void vtkHyperOctreeClipCutPointsGrabber::InsertPointWithMerge(
vtkIdType ptId,
double pt[3],
double pcoords[3],
int vtkNotUsed(ijk)[3])
{
if(this->IdSet->Set.find(ptId)==this->IdSet->Set.end()) // not find
{
this->IdSet->Set.insert(ptId);
this->Triangulator->InsertPoint(ptId,pt,pcoords,0);
}
}
//-----------------------------------------------------------------------------
// Description:
// Insert a point in the quadtree case.
void vtkHyperOctreeClipCutPointsGrabber::InsertPoint2D(double pt[3],
int vtkNotUsed(ijk)[3])
{
this->Polygon->GetPointIds()->InsertNextId(
this->Polygon->GetPointIds()->GetNumberOfIds());
this->Polygon->GetPoints()->InsertNextPoint(pt);
}
//-----------------------------------------------------------------------------
// Description:
// Return the ordered triangulator.
vtkOrderedTriangulator *vtkHyperOctreeClipCutPointsGrabber::GetTriangulator()
{
return this->Triangulator;
}
//-----------------------------------------------------------------------------
// Description:
// Return the polygon.
vtkPolygon *vtkHyperOctreeClipCutPointsGrabber::GetPolygon()
{
return this->Polygon;
}
//-----------------------------------------------------------------------------
void vtkHyperOctreeClipCutPointsGrabber::PrintSelf(ostream& os,
vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
}
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