Viewpoint.h

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#ifndef VIEWPOINT_H
#define VIEWPOINT_H
/*
 * This class describes a viewpoint
 */
#include <vapor/ParamsBase.h>
 
namespace VAPoR {
 
 
 
class PARAMS_API Viewpoint : public ParamsBase {
public:
    Viewpoint(ParamsBase::StateSave *ssave);
 
    Viewpoint(ParamsBase::StateSave *ssave, XmlNode *node);
 
    virtual ~Viewpoint();
 
    //
    void GetModelViewMatrix(double m[16]) const;
    void SetModelViewMatrix(const double m[16]);
 
    void GetProjectionMatrix(double m[16]) const;
    void SetProjectionMatrix(const double m[16]);
 
    bool ReconstructCamera(const double m[16], double position[3], double upVec[3], double viewDir[3]) const;
 
    void SetRotationCenter(const std::vector<double> &v)
    {
        VAssert(v.size() == 3);
        SetValueDoubleVec(_rotationCenterTag, "Camera rotation center", v);
    }
 
    std::vector<double> GetRotationCenter() const
    {
        vector<double> defaultv(3, 0.0);
        return (GetValueDoubleVec(_rotationCenterTag, defaultv));
    }
 
    static string GetClassType() { return ("Viewpoint"); }
 
private:
    // ParamsContainer *_VPs;
 
    static const string _modelViewMatrixTag;
    static const string _projectionMatrixTag;
    static const string _rotationCenterTag;
 
    static double _defaultModelViewMatrix[16];
    static double _defaultProjectionMatrix[16];
 
    void _init();
};
};    // namespace VAPoR
 
#endif    // VIEWPOINT_H