/usr/include/osgEarthUtil/Ephemeris is in libosgearth-dev 2.9.0+dfsg-1.
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/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
* Copyright 2016 Pelican Mapping
* http://osgearth.org
*
* osgEarth is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>
*/
#ifndef OSGEARTHUTIL_EPHEMERIS
#define OSGEARTHUTIL_EPHEMERIS
#include <osgEarthUtil/Common>
#include <osgEarth/DateTime>
#include <osg/Vec3d>
namespace osgEarth { namespace Util
{
using namespace osgEarth;
/**
* An Ephemeris gives the positions of naturally occurring astronimical
* objects; in that case, the sun and the moon. Also includes some
* related utility functions.
*/
class OSGEARTHUTIL_EXPORT Ephemeris : public osg::Referenced
{
public:
/**
* Gets the moon position in ECEF coordinates at the given time
*/
virtual osg::Vec3d getMoonPositionECEF(const DateTime& dt) const;
/**
* Gets the sun position in ECEF coordinates at the given time
*/
virtual osg::Vec3d getSunPositionECEF(const DateTime& dt) const;
/**
* Gets an ECEF position from the right ascension, declination and range
*
* @param ra Right ascension in radians
* @param decl Declination in radians
* @param range Range in meters
*/
osg::Vec3d getECEFfromRADecl(double ra, double decl, double range) const;
};
} } // namespace osgEarth::Util
#endif // OSGEARTHUTIL_EPHEMERIS
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