83 lines
2.4 KiB
Plaintext
83 lines
2.4 KiB
Plaintext
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/* -*-c++-*- */
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/* osgEarth - Geospatial SDK for OpenSceneGraph
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* Copyright 2020 Pelican Mapping
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* http://osgearth.org
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*
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* osgEarth is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*/
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#ifndef OSGEARTH_ELEVATIONLOD_H
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#define OSGEARTH_ELEVATIONLOD_H 1
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#include <osgEarth/Common>
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#include <osgEarth/SpatialReference>
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#include <osg/Group>
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namespace osgEarth
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{
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/**
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* Decorator node that will only display it's children when the
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* camera is within a given elevation range and/or within a
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* given camera range.
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*/
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class OSGEARTH_EXPORT ElevationLOD : public osg::Group
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{
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public:
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META_Node(osgEarth, ElevationLOD);
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ElevationLOD();
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ElevationLOD(const ElevationLOD& rhs, const osg::CopyOp& op);
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ElevationLOD(const SpatialReference* srs);
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ElevationLOD(const SpatialReference* srs, double minElevation, double maxElevation);
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double getMinElevation() const;
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void setMinElevation( double minElevation );
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double getMaxElevation() const;
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void setMaxElevation(double maxElevation );
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void setElevations( double minElevation, double maxElevation );
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float getMinRange() const;
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void setMinRange(float minRange);
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float getMaxRange() const;
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void setMaxRange(float maxRange);
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void setRanges( float minRange, float maxRange );
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public: // osg::Node
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virtual void traverse( osg::NodeVisitor& nv);
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protected:
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virtual ~ElevationLOD();
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private:
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osg::ref_ptr< const SpatialReference > _srs;
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optional<double> _minElevation;
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optional<double> _maxElevation;
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optional<float> _minRange;
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optional<float> _maxRange;
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};
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// AltitudeLOD is a better name.
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typedef ElevationLOD AltitudeLOD;
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} // namespace osgEarth
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#endif // OSGEARTH_ELEVATIONLOD_H
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