/home/cube/sources/osgearth/src/osgEarthUtil/Viewpoint

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/* -*-c++-*- */
/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
 * Copyright 2008-2010 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 OSGEARTHUTIL_VIEWPOINT
#define OSGEARTHUTIL_VIEWPOINT

#include <osgEarthUtil/Common>
#include <osgEarth/SpatialReference>
#include <osgEarth/Config>

namespace osgEarth { namespace Util
{
    class OSGEARTHUTIL_EXPORT Viewpoint
    {
    public:
        Viewpoint();

        Viewpoint(
            const osg::Vec3d& focal_point,
            double heading_deg,
            double pitch_deg,
            double range,
            const osgEarth::SpatialReference* srs =NULL );

        Viewpoint(
            double x_or_lon, double y_or_lat, double z,
            double heading_deg,
            double pitch_deg,
            double range,
            const osgEarth::SpatialReference* srs =NULL );

        Viewpoint(
            const std::string& name,
            const osg::Vec3d& focal_point,
            double heading_deg,
            double pitch_deg,
            double range,
            const osgEarth::SpatialReference* srs =NULL );

        Viewpoint(
            const std::string& name,
            double x_or_lon, double y_or_lat, double z,
            double heading_deg,
            double pitch_deg,
            double range,
            const osgEarth::SpatialReference* srs =NULL );

        Viewpoint( const Config& conf );

        Viewpoint( const Viewpoint& rhs );

    public:

        bool isValid() const;

        void setName( const std::string& name );
        const std::string& getName() const;

        const osg::Vec3d& getFocalPoint() const;
        void setFocalPoint( const osg::Vec3d& point );

        double x() const;
        double& x();

        double y() const;
        double& y();

        double z() const;
        double& z();

        double getHeading() const;
        void setHeading( double heading_deg );

        double getPitch() const;
        void setPitch( double pitch_deg );

        double getRange() const;
        void setRange( double range );

        const osgEarth::SpatialReference* getSRS() const;

        std::string toString() const;

        Config getConfig() const;

    private:
        std::string _name;
        osg::Vec3d _focal_point;
        double _heading_deg;
        double _pitch_deg;
        double _range;
        osg::ref_ptr<const osgEarth::SpatialReference> _srs;
        bool _is_valid;
    };

} } // namespace osgEarth::Util

#endif // OSGEARTHUTIL_VIEWPOINT