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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 OSGEARTHSYMBOLOGY_GEOMETRY_FACTORY
#define OSGEARTHSYMBOLOGY_GEOMETRY_FACTORY

#include <osgEarthSymbology/Common>
#include <osgEarthSymbology/Geometry>
#include <osgEarth/SpatialReference>

namespace osgEarth { namespace Symbology
{
    using namespace osgEarth;

    class OSGEARTHSYMBOLOGY_EXPORT GeometryFactory
    {
    public:
        GeometryFactory( const SpatialReference* srs =0L );

        Geometry* createCircle( 
            const osg::Vec3d& center,
            const Linear&     radius,
            unsigned          numSegments =0);

        Geometry* createArc(
            const osg::Vec3d& center,
            const Linear&     radius,
            const Angular&    startAngle,
            const Angular&    endAngle,
            unsigned          numSegments =0);

        Geometry* createEllipse(
            const osg::Vec3d& center,
            const Linear&     radiusMajor,
            const Linear&     radiusMinor,
            const Angular&    rotationAngle,
            unsigned          numSegments =0);

    protected:

        osg::ref_ptr<const SpatialReference> _srs;
    };

} } // namespace osgEarth::Symbology

#endif // OSGEARTHSYMBOLOGY_GEOMETRY_FACTORY