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ThirdParty-6/ParaView-5.0.1/VTK/Geovis/Core/vtkGeoProjectionSource.h

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/*=========================================================================
Program: Visualization Toolkit
Module: vtkGeoProjectionSource.h
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.
-------------------------------------------------------------------------*/
// .NAME vtkGeoProjectionSource - A 2D geographic geometry source
//
// .SECTION Description
// vtkGeoProjectionSource is a vtkGeoSource suitable for use in vtkTerrain2D.
// This source uses the libproj4 library to produce geometry patches at
// multiple resolutions. Each patch covers a specific region in projected
// space.
#ifndef vtkGeoProjectionSource_h
#define vtkGeoProjectionSource_h
#include "vtkGeovisCoreModule.h" // For export macro
#include "vtkGeoSource.h"
class vtkAbstractTransform;
class vtkGeoTerrainNode;
class vtkMutexLock;
class VTKGEOVISCORE_EXPORT vtkGeoProjectionSource : public vtkGeoSource
{
public:
static vtkGeoProjectionSource *New();
vtkTypeMacro(vtkGeoProjectionSource,vtkGeoSource);
virtual void PrintSelf( ostream& os, vtkIndent indent );
vtkGeoProjectionSource();
~vtkGeoProjectionSource();
// Description:
// Blocking methods for sources with low latency.
virtual bool FetchRoot(vtkGeoTreeNode* root);
virtual bool FetchChild(vtkGeoTreeNode* node, int index, vtkGeoTreeNode* child);
// Description:
// The projection ID defining the projection. Initial value is 0.
vtkGetMacro(Projection, int);
virtual void SetProjection(int projection);
// Description:
// The minimum number of cells per node.
vtkGetMacro(MinCellsPerNode, int);
vtkSetMacro(MinCellsPerNode, int);
// Description:
// Return the projection transformation used by this 2D terrain.
virtual vtkAbstractTransform* GetTransform();
protected:
void RefineAndComputeError(vtkGeoTerrainNode* node);
int Projection;
int MinCellsPerNode;
virtual void SetTransform(vtkAbstractTransform* transform);
vtkMutexLock* TransformLock;
vtkAbstractTransform* Transform;
private:
vtkGeoProjectionSource(const vtkGeoProjectionSource&); // Not implemented
void operator=(const vtkGeoProjectionSource&); // Not implemented
};
#endif