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vtkGeoTerrain2D.h
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vtkGeoTerrain2D.h
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/*=========================================================================
Program: Visualization Toolkit
Module: vtkGeoTerrain2D.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 vtkGeoTerrain2D - A 2D terrain model for the globe.
//
// .SECTION Description
// vtkGeoTerrain2D contains a multi-resolution tree of geometry representing
// the globe. It uses a vtkGeoSource subclass to generate the terrain, such
// as vtkGeoProjectionSource. This source must be set before using the
// terrain in a vtkGeoView2D. The terrain also contains an AddActors()
// method which updates the set of actors representing the globe given the
// current camera position.
#ifndef __vtkGeoTerrain2D_h
#define __vtkGeoTerrain2D_h
#include "vtkGeoTerrain.h"
class vtkAbstractTransform;
class vtkAssembly;
class vtkCollection;
class vtkGeoImageRepresentation;
class vtkGeoSource;
class vtkGeoTerrainNode;
class vtkRenderer;
class VTK_GEOVIS_EXPORT vtkGeoTerrain2D : public vtkGeoTerrain
{
public:
static vtkGeoTerrain2D *New();
vtkTypeMacro(vtkGeoTerrain2D,vtkGeoTerrain);
virtual void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// The maximum size of a single texel in pixels.
// Images will be refined if a texel becomes larger than the tolerance.
vtkSetMacro(TextureTolerance, double);
vtkGetMacro(TextureTolerance, double);
// Description:
// The maximum allowed deviation of geometry in pixels.
// Geometry will be refined if the deviation is larger than the tolerance.
vtkSetMacro(LocationTolerance, double);
vtkGetMacro(LocationTolerance, double);
// Description:
// Return the projection transformation used by this 2D terrain.
virtual vtkAbstractTransform* GetTransform();
protected:
vtkGeoTerrain2D();
~vtkGeoTerrain2D();
double LocationTolerance;
double TextureTolerance;
// Description:
// AddActors() calls this to setup parameters for evaluating nodes.
virtual void InitializeNodeAnalysis(vtkRenderer* ren);
// Description:
// AddActors() calls this to determine if a node is in the current
// viewport.
virtual bool NodeInViewport(vtkGeoTerrainNode* node);
// Description:
// AddActors() calls to to evaluate whether a node should be
// refined (1), coarsened (-1), or remain at the same level (0).
virtual int EvaluateNode(vtkGeoTerrainNode* node);
double CameraBounds[4];
double PixelSize;
private:
vtkGeoTerrain2D(const vtkGeoTerrain2D&); // Not implemented
void operator=(const vtkGeoTerrain2D&); // Not implemented
};
#endif