/usr/include/osgEarth/Geoid is in libosgearth-dev 2.4.0+dfsg-6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
* Copyright 2008-2013 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.
*
* This program 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 Lesser General Public License for more details.
*
* 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 OSGEARTH_GEOID_H
#define OSGEARTH_GEOID_H 1
#include <osgEarth/Common>
#include <osgEarth/GeoCommon>
#include <osgEarth/Bounds>
#include <osgEarth/Units>
#include <osg/Referenced>
namespace osgEarth
{
/**
* An equipotential surface representing a gravitational model of the
* planet's surface. Each value in the geoid's height field is an offset
* from the reference ellipsoid.
*/
class OSGEARTH_EXPORT Geoid : public osg::Referenced
{
public:
Geoid();
/** dtor */
virtual ~Geoid() { }
/** Gets the readable name of this geoid. */
void setName( const std::string& value );
const std::string& getName() const { return _name; }
/**
* Sets the heightfield representing this geoid. The heightfield must be referenced
* as a lat/long grid (with the origin and intervals in degrees).
*/
void setHeightField( osg::HeightField* hf );
const osg::HeightField* getHeightField() const { return _hf.get(); }
/**
* Queries the geoid for the height offset at the specified geodetic
* coordinates (in degrees).
*/
float getHeight(
double lat_deg,
double lon_deg,
const ElevationInterpolation& interp =INTERP_BILINEAR) const;
/** The linear units in which height values are expressed. */
const Units& getUnits() const { return _units; }
void setUnits( const Units& value );
/** Whether this is a valid object to use */
bool isValid() const { return _valid; }
/** True if two geoids are mathmatically equivalent. */
bool isEquivalentTo( const Geoid& rhs ) const;
private:
std::string _name;
Units _units;
bool _valid;
Bounds _bounds;
osg::ref_ptr<osg::HeightField> _hf;
void validate();
};
}
#endif // OSGEARTH_GEODATA_H
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