xypor/index.php

/* -----------------------------------------------------------------------------


    SPDX-FileCopyrightText: 1997-2016 Martin Reinecke,

    SPDX-FileCopyrightText: 1997-2016 Krzysztof M. Gorski

    SPDX-FileCopyrightText: 1997-2016 Eric Hivon

    SPDX-FileCopyrightText: Benjamin D. Wandelt

    SPDX-FileCopyrightText: Anthony J. Banday,

    SPDX-FileCopyrightText: Matthias Bartelmann,

    SPDX-FileCopyrightText: Reza Ansari

    SPDX-FileCopyrightText: Kenneth M. Ganga


    This file is part of HEALPix.


    Based on work by Pavel Mraz from SkyTechX.


    Modified by Jasem Mutlaq for KStars:

    SPDX-FileCopyrightText: Jasem Mutlaq <mutlaqja@ikarustech.com>


    SPDX-License-Identifier: GPL-2.0-or-later


    For more information about HEALPix see https://healpix.sourceforge.io/


    ---------------------------------------------------------------------------*/


#pragma once


#include "hips.h"


#include <QVector3D>


class SkyPoint;


class HEALPix

{

public:

    HEALPix() = default;


    void getCornerPoints(int level, int pix, SkyPoint *skyCoords);

    void neighbours(int nside, qint32 ipix, int *result);

    int  getPix(int level, double ra, double dec);

    void getPixChilds(int pix, int *childs);


private:

    void nest2xyf(int nside, int pix, int *ix, int *iy, int *face_num);

    QVector3D toVec3(double fx, double fy, int face);

    void boundaries(qint32 nside, qint32 pix, int step, QVector3D *out);

    int ang2pix_nest_z_phi(qint32 nside_, double z, double phi);

    void xyz2sph(const QVector3D &vec, double &l, double &b);

};


SkyPoint
The sky coordinates of a point in the sky.
Definition skypoint.h:45

QVector3D