TelescopeDirectionVectorSupportFunctions.h

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#pragma once
 
#include "Common.h"
#include "libastro.h"
#include "indicom.h"
 
namespace INDI
{
namespace AlignmentSubsystem
{
class TelescopeDirectionVectorSupportFunctions
{
    public:
        virtual ~TelescopeDirectionVectorSupportFunctions() {}
 
        typedef enum AzimuthAngleDirection
        {
            CLOCKWISE,     
            ANTI_CLOCKWISE 
        } AzimuthAngleDirection_t;
 
        typedef enum PolarAngleDirection
        {
            FROM_POLAR_AXIS,     
            FROM_AZIMUTHAL_PLANE 
        } PolarAngleDirection_t;
 
        void AltitudeAzimuthFromTelescopeDirectionVector(const TelescopeDirectionVector TelescopeDirectionVector,
                INDI::IHorizontalCoordinates &HorizontalCoordinates)
        {
            double AzimuthAngle;
            double AltitudeAngle;
            SphericalCoordinateFromTelescopeDirectionVector(TelescopeDirectionVector, AzimuthAngle, CLOCKWISE,
                    AltitudeAngle, FROM_AZIMUTHAL_PLANE);
            HorizontalCoordinates.azimuth  = range360(RAD_TO_DEG(AzimuthAngle));
            HorizontalCoordinates.altitude = RAD_TO_DEG(AltitudeAngle);
        };
 
        void EquatorialCoordinatesFromTelescopeDirectionVector(const TelescopeDirectionVector TelescopeDirectionVector,
                INDI::IEquatorialCoordinates &EquatorialCoordinates)
        {
            double AzimuthAngle;
            double PolarAngle;
            SphericalCoordinateFromTelescopeDirectionVector(TelescopeDirectionVector, AzimuthAngle, ANTI_CLOCKWISE,
                    PolarAngle, FROM_AZIMUTHAL_PLANE);
            EquatorialCoordinates.rightascension  = range24(RAD_TO_DEG(AzimuthAngle) / 15.0);
            EquatorialCoordinates.declination = rangeDec(RAD_TO_DEG(PolarAngle));
        };
 
        void LocalHourAngleDeclinationFromTelescopeDirectionVector(const TelescopeDirectionVector TelescopeDirectionVector,
                INDI::IEquatorialCoordinates &EquatorialCoordinates)
        {
            double AzimuthAngle;
            double PolarAngle;
            SphericalCoordinateFromTelescopeDirectionVector(TelescopeDirectionVector, AzimuthAngle, CLOCKWISE, PolarAngle,
                    FROM_AZIMUTHAL_PLANE);
            EquatorialCoordinates.rightascension  = range24(RAD_TO_DEG(AzimuthAngle) / 15.0);
            EquatorialCoordinates.declination = rangeDec(RAD_TO_DEG(PolarAngle));
        };
 
        void SphericalCoordinateFromTelescopeDirectionVector(const TelescopeDirectionVector TelescopeDirectionVector,
                double &AzimuthAngle,
                AzimuthAngleDirection_t AzimuthAngleDirection,
                double &PolarAngle, PolarAngleDirection_t PolarAngleDirection);
 
        const TelescopeDirectionVector TelescopeDirectionVectorFromAltitudeAzimuth(INDI::IHorizontalCoordinates
                HorizontalCoordinates)
        {
            return TelescopeDirectionVectorFromSphericalCoordinate(DEG_TO_RAD(HorizontalCoordinates.azimuth), CLOCKWISE,
                    DEG_TO_RAD(HorizontalCoordinates.altitude),
                    FROM_AZIMUTHAL_PLANE);
        };
 
        const TelescopeDirectionVector
        TelescopeDirectionVectorFromEquatorialCoordinates(INDI::IEquatorialCoordinates EquatorialCoordinates)
        {
            return TelescopeDirectionVectorFromSphericalCoordinate(DEG_TO_RAD(EquatorialCoordinates.rightascension * 15.0),
                    ANTI_CLOCKWISE,
                    DEG_TO_RAD(EquatorialCoordinates.declination),
                    FROM_AZIMUTHAL_PLANE);
        };
 
        const TelescopeDirectionVector
        TelescopeDirectionVectorFromLocalHourAngleDeclination(INDI::IEquatorialCoordinates EquatorialCoordinates)
        {
            return TelescopeDirectionVectorFromSphericalCoordinate(DEG_TO_RAD(EquatorialCoordinates.rightascension * 15.0), CLOCKWISE,
                    DEG_TO_RAD(EquatorialCoordinates.declination),
                    FROM_AZIMUTHAL_PLANE);
        };
 
        const TelescopeDirectionVector
        TelescopeDirectionVectorFromSphericalCoordinate(const double AzimuthAngle,
                AzimuthAngleDirection_t AzimuthAngleDirection,
                const double PolarAngle, PolarAngleDirection_t PolarAngleDirection);
};
 
} // namespace AlignmentSubsystem
} // namespace INDI