hemigrid.h

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//---------------------------------------------------------------------------
 
#ifndef HemiGrid_H
#define HemiGrid_H
 
class HemiGrid
{
 public:
    HemiGrid(): mMatrix(0), mMatrixCountAzimuth(-1),
                     mMatrixCountElevation(-1) {}
    ~HemiGrid() { if (mMatrix) delete[] mMatrix; }
    HemiGrid(const HemiGrid& grid) { setup(mCellSizeDegree); modify(grid, HemiGrid::SetTo); }
 
    void setup(double cellsize_degree);
    void clear(double SetWith = 0.);
    //void DumpGrid(TStrings* List);
 
    double& rGetByIndex(const int iAzimuth, const int iElevation) const;
    double& rGet(const double Azimuth, const double Elevation) const;
 
    int indexAzimuth(double Azimuth) const { int x=int( (Azimuth + M_PI) / (2.*M_PI) * mMatrixCountAzimuth ); if (x==mMatrixCountAzimuth) --x; return x;}
    int indexElevation(double Elevation) const { int x=int( Elevation / (M_PI / 2.) * mMatrixCountElevation ); if (x==mMatrixCountElevation) --x; return x;}
 
    double azimuth(const int iAzimuth) { return iAzimuth/double(mMatrixCountAzimuth) * M_PI*2 - M_PI; }
    double azimuthNorth(const int iAzimuth) { double d = iAzimuth/double(mMatrixCountAzimuth) * M_PI*2 - M_PI/2.; return d; }
    double elevation(const int iElevation) { return iElevation/double(mMatrixCountElevation) * M_PI_2; }
 
    int matrixCountAzimuth() const { return mMatrixCountAzimuth; }
    int matrixCountElevation() const  { return mMatrixCountElevation; }
    void matrixMinMax(double &rMatrixMin, double &rMatrixMax) const;
    double sum(const double elevation=0) const;
 
    static void projectLine(const double &x, const double &y, const double &deltah, const double &r,
        double &elevation, double &azimuth1, double &azimuth2);
 
    enum ModifyMode { Add, Multiply, SetTo };
    void modify(const HemiGrid &Source, const ModifyMode mode);
 
    void projectCylinder(const double &deltax, const double &deltay,
                         const double &offsetz, const double &height, const double &r,
                         const ModifyMode mode, const double &value);
    void modifyAngleRect( const double &elow, const double &alow1, const double &alow2,
                    const double &ehigh, const double &ahigh1, const double &ahigh2,
                    const ModifyMode mode, const double &value);
    double getSum(const HemiGrid *Weighter=NULL) const;
    // drawing/output
    void paintGrid(QImage &image) const;
    QString dumpGrid() const;
 
 private:
    double* mMatrix;
    int mMatrixCountAzimuth;
    int mMatrixCountElevation;
    double mMatrixCellSize;
    double mCellSizeDegree;
};
 
//---------------------------------------------------------------------------
#endif