vtTin3d.h

//
// vtTin3d.h
//
// Copyright (c) 2002-2011 Virtual Terrain Project
// Free for all uses, see license.txt for details.
//

#ifndef TIN3DH
#define TIN3DH

#include "vtdata/vtTin.h"
#include "vtdata/HeightField.h"


class vtTin3d : public vtTin, public osg::Referenced
{
public:
    vtTin3d();

    bool Read(const char *fname);

    vtGeode *CreateGeometry(bool bDropShadowMesh, int m_matidx = 0);
    vtGeode *GetGeometry() { return m_pGeode; }
    void SetTextureMaterials(vtMaterialArray *pMats);

    // implement HeightField3d virtual methods
    virtual bool FindAltitudeAtPoint(const FPoint3 &p3, float &fAltitude,
        bool bTrue = false, int iCultureFlags = 0,
        FPoint3 *vNormal = NULL) const;
    virtual bool CastRayToSurface(const FPoint3 &point, const FPoint3 &dir,
        FPoint3 &result) const;

    FPoint3 FindVectorToClosestVertex(const FPoint3 &pos);

protected:
    virtual void MakeSurfaceMaterials();

    vtArray<vtMesh*> m_Meshes;
    vtMaterialArrayPtr m_pMats;
    vtGeode     *m_pGeode;
    vtGeode     *m_pDropGeode;
};
typedef osg::ref_ptr<vtTin3d> vtTin3dPtr;
    // Group tin

#endif // TIN3DH