SRTerrain.h

//
// SRTerrain class : a subclass of vtDynTerrainGeom which encapsulates
//  Stefan Roettger's CLOD algorithm.
//
// Utilizes: Roettger's MINI library implementation
// http://stereofx.org/#Terrain
//
// Copyright (c) 2002-2011 Virtual Terrain Project
// Free for all uses, see license.txt for details.
//

#ifndef SRTERRAINH
#define SRTERRAINH

#include "DynTerrain.h"


class SRTerrain : public vtDynTerrainGeom
{
public:
    SRTerrain();

    // initialization
    DTErr Init(const vtElevationGrid *pGrid, float fZScale);

    // overrides
    void DoRender();
    void DoCulling(const vtCamera *pCam);
    float GetElevation(int iX, int iZ, bool bTrue = false) const;
    void SetElevation(int iX, int iZ, float fValue, bool bTrue = false);
    void GetWorldLocation(int iX, int iZ, FPoint3 &p, bool bTrue = false) const;
    void SetVerticalExag(float fExag);
    float GetVerticalExag() const { return m_fHeightScale; }
    void SetPolygonTarget(int iCount);

    // Dynamic elevation
    DTErr ReInit(const vtElevationGrid *pGrid);

    void LoadSingleMaterial();

    int     m_iBlockSize;

    float m_fResolution;
    float m_fHResolution;
    float m_fLResolution;

protected:
    // rendering
    void RenderSurface();
    void RenderPass();

    // cleanup
    virtual ~SRTerrain();

private:
    class ministub *m_pMini;

    IPoint2 m_window_size;
    FPoint3 m_eyepos_ogl;
    float m_fFOVY;
    float m_fAspect;
    float m_fNear, m_fFar;
    FPoint3 eye_up, eye_forward;

    float m_fHeightScale;
    float m_fMaximumScale;
    float m_fDrawScale;
    bool m_bFloat;
};
    // Group dynterr

#endif  // SRTerrain