C++ (Cpp) pj_Convert_Geodetic_To_Geocentric примеры использования

Пример #1

int pj_geodetic_to_geocentric( double a, double es, 
                               long point_count, int point_offset,
                               double *x, double *y, double *z )

{
    double b;
    int    i;

    if( es == 0.0 )
        b = a;
    else
        b = a * sqrt(1-es);

    if( pj_Set_Geocentric_Parameters( a, b ) != 0 )
    {
        pj_errno = PJD_ERR_GEOCENTRIC;
        return pj_errno;
    }

    for( i = 0; i < point_count; i++ )
    {
        long io = i * point_offset;

        if( pj_Convert_Geodetic_To_Geocentric( y[io], x[io], z[io], 
                                            x+io, y+io, z+io ) != 0 )
        {
            pj_errno = PJD_ERR_GEOCENTRIC;
            return PJD_ERR_GEOCENTRIC;
        }
    }

    return 0;
}

Пример #2

Файл: pj_transform.c Проект: naadsm/proj4_delphi

int pj_geodetic_to_geocentric( double a, double es, 
                               long point_count, int point_offset,
                               double *x, double *y, double *z )

{
    double b;
    int    i;
    GeocentricInfo gi;

    pj_errno = 0;

    if( es == 0.0 )
        b = a;
    else
        b = a * sqrt(1-es);

    if( pj_Set_Geocentric_Parameters( &gi, a, b ) != 0 )
    {
        pj_errno = PJD_ERR_GEOCENTRIC;
        return pj_errno;
    }

    for( i = 0; i < point_count; i++ )
    {
        long io = i * point_offset;

        if( x[io] == HUGE_VAL  )
            continue;

        if( pj_Convert_Geodetic_To_Geocentric( &gi, y[io], x[io], z[io], 
                                               x+io, y+io, z+io ) != 0 )
        {
            pj_errno = -14;
            x[io] = y[io] = HUGE_VAL;
            /* but keep processing points! */
        }
    }

    return pj_errno;
}