/usr/include/simgear/scene/sky/moon.hxx is in libsimgear-dev 3.4.0-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 | // moon.hxx -- model earth's moon
//
// Written by Durk Talsma. Originally started October 1997, for distribution
// with the FlightGear project. Version 2 was written in August and
// September 1998. This code is based upon algorithms and data kindly
// provided by Mr. Paul Schlyter. (pausch@saaf.se).
//
// Separated out rendering pieces and converted to ssg by Curt Olson,
// March 2000
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Library General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// $Id$
#ifndef _SG_MOON_HXX_
#define _SG_MOON_HXX_
#include <osg/ref_ptr>
#include <osg/MatrixTransform>
#include <osg/Material>
#include <simgear/math/SGMath.hxx>
#include <simgear/structure/SGReferenced.hxx>
#include <simgear/misc/sg_path.hxx>
class SGMoon : public SGReferenced {
osg::ref_ptr<osg::MatrixTransform> moon_transform;
osg::ref_ptr<osg::Material> orb_material;
double prev_moon_angle;
public:
// Constructor
SGMoon( void );
// Destructor
~SGMoon( void );
// build the moon object
osg::Node *build( SGPath path, double moon_size );
// repaint the moon colors based on current value of moon_anglein
// degrees relative to verticle
// 0 degrees = high noon
// 90 degrees = moon rise/set
// 180 degrees = darkest midnight
bool repaint( double moon_angle );
// reposition the moon at the specified right ascension and
// declination, offset by our current position (p) so that it
// appears fixed at a great distance from the viewer. Also add in
// an optional rotation (i.e. for the current time of day.)
bool reposition( double rightAscension, double declination,
double moon_dist );
};
#endif // _SG_MOON_HXX_
|