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110 lines
3.2 KiB
C
110 lines
3.2 KiB
C
3 weeks ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkGeoTerrain2D.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/*-------------------------------------------------------------------------
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Copyright 2008 Sandia Corporation.
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Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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the U.S. Government retains certain rights in this software.
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-------------------------------------------------------------------------*/
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/**
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* @class vtkGeoTerrain2D
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* @brief A 2D terrain model for the globe.
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*
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*
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* vtkGeoTerrain2D contains a multi-resolution tree of geometry representing
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* the globe. It uses a vtkGeoSource subclass to generate the terrain, such
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* as vtkGeoProjectionSource. This source must be set before using the
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* terrain in a vtkGeoView2D. The terrain also contains an AddActors()
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* method which updates the set of actors representing the globe given the
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* current camera position.
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*/
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#ifndef vtkGeoTerrain2D_h
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#define vtkGeoTerrain2D_h
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#include "vtkGeovisCoreModule.h" // For export macro
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#include "vtkGeoTerrain.h"
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class vtkAbstractTransform;
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class vtkAssembly;
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class vtkCollection;
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class vtkGeoImageRepresentation;
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class vtkGeoSource;
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class vtkGeoTerrainNode;
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class vtkRenderer;
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class VTKGEOVISCORE_EXPORT vtkGeoTerrain2D : public vtkGeoTerrain
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{
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public:
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static vtkGeoTerrain2D *New();
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vtkTypeMacro(vtkGeoTerrain2D,vtkGeoTerrain);
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void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
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//@{
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/**
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* The maximum size of a single texel in pixels.
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* Images will be refined if a texel becomes larger than the tolerance.
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*/
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vtkSetMacro(TextureTolerance, double);
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vtkGetMacro(TextureTolerance, double);
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//@}
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//@{
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/**
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* The maximum allowed deviation of geometry in pixels.
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* Geometry will be refined if the deviation is larger than the tolerance.
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*/
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vtkSetMacro(LocationTolerance, double);
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vtkGetMacro(LocationTolerance, double);
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//@}
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/**
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* Return the projection transformation used by this 2D terrain.
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*/
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virtual vtkAbstractTransform* GetTransform();
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protected:
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vtkGeoTerrain2D();
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~vtkGeoTerrain2D();
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double LocationTolerance;
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double TextureTolerance;
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/**
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* AddActors() calls this to setup parameters for evaluating nodes.
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*/
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virtual void InitializeNodeAnalysis(vtkRenderer* ren);
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/**
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* AddActors() calls this to determine if a node is in the current
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* viewport.
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*/
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virtual bool NodeInViewport(vtkGeoTerrainNode* node);
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/**
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* AddActors() calls to to evaluate whether a node should be
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* refined (1), coarsened (-1), or remain at the same level (0).
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*/
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virtual int EvaluateNode(vtkGeoTerrainNode* node);
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double CameraBounds[4];
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double PixelSize;
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private:
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vtkGeoTerrain2D(const vtkGeoTerrain2D&) VTK_DELETE_FUNCTION;
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void operator=(const vtkGeoTerrain2D&) VTK_DELETE_FUNCTION;
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};
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#endif
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