dox/Geovis/vtkGeoTerrainNode.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkGeoTerrainNode.h,v $

  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.
-------------------------------------------------------------------------*/

#ifndef __vtkGeoTerrainNode_h
#define __vtkGeoTerrainNode_h

#include "vtkGeoTreeNode.h"
#include "vtkSmartPointer.h" // for SP

class vtkPolyData;

class VTK_GEOVIS_EXPORT vtkGeoTerrainNode : public vtkGeoTreeNode
{
public:
  static vtkGeoTerrainNode *New();
  vtkTypeRevisionMacro(vtkGeoTerrainNode, vtkGeoTreeNode);
  void PrintSelf(ostream& os, vtkIndent indent);


  vtkGeoTerrainNode* GetChild(int idx);
  vtkGeoTerrainNode* GetParent();
    
  double GetAltitude(double longitude, double latitude);
  

  vtkPolyData* GetModel();
  void SetModel(vtkPolyData* model);
  

  void UpdateBoundingSphere();
  vtkGetMacro(BoundingSphereRadius, double);
  vtkGetVector3Macro(BoundingSphereCenter, double);

  vtkGetVector3Macro(CornerNormal00,double);
  vtkGetVector3Macro(CornerNormal01,double);
  vtkGetVector3Macro(CornerNormal10,double);
  vtkGetVector3Macro(CornerNormal11,double);


  vtkGetVector4Macro(ProjectionBounds,double);
  vtkSetVector4Macro(ProjectionBounds,double);


  vtkGetMacro(GraticuleLevel,int);
  vtkSetMacro(GraticuleLevel,int);


  vtkGetMacro(Error,double);
  vtkSetMacro(Error,double);


  vtkGetMacro(Coverage,float);
  vtkSetMacro(Coverage,float);


  virtual void ShallowCopy(vtkGeoTreeNode *src);  
  virtual void DeepCopy(vtkGeoTreeNode *src);
  
protected:
  vtkGeoTerrainNode();
  ~vtkGeoTerrainNode();

//BTX
  vtkSmartPointer<vtkPolyData> Model;
//ETX

  double BoundingSphereRadius;
  double BoundingSphereCenter[3];

  // I hate having to store this, but it is the easiest
  // way to determine if a node is not visible because
  // it is on the other side of the earth.
  double CornerNormal00[3];
  double CornerNormal01[3];
  double CornerNormal10[3];
  double CornerNormal11[3];

  double ProjectionBounds[4];
  int GraticuleLevel;
  double Error;
  float  Coverage;

private:
  vtkGeoTerrainNode(const vtkGeoTerrainNode&);  // Not implemented.
  void operator=(const vtkGeoTerrainNode&);  // Not implemented.
};

#endif

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