102 lines
3.5 KiB
Plaintext
102 lines
3.5 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 OSGEARTHSYMBOLOGY_BILLBOARD_SYMBOL_H
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#define OSGEARTHSYMBOLOGY_BILLBOARD_SYMBOL_H 1
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#include <climits>
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#include <osgEarth/Common>
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#include <osgEarth/InstanceSymbol>
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#include <osg/Vec3f>
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namespace osgEarth
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{
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namespace Util {
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class InstanceResource;
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}
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/**
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* Represents a 2D camera-facing image
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*/
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class OSGEARTH_EXPORT BillboardSymbol : public InstanceSymbol
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{
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public:
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META_Object(osgEarth, BillboardSymbol);
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BillboardSymbol(const BillboardSymbol& rhs,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
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BillboardSymbol( const Config& conf =Config() );
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/** dtor */
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virtual ~BillboardSymbol() { }
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public: // properties
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//! URL or the top image
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optional<StringExpression>& topURL() { return _topURL; }
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const optional<StringExpression>& topURL() const { return _topURL; }
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//! Width of the billboard image in meters */
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optional<float>& width() { return _width; }
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const optional<float>& width() const { return _width; }
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//! Height of the billboard image in meters */
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optional<float>& height() { return _height; }
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const optional<float>& height() const { return _height; }
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//! Percentage by which to vary width and height [0..1] default = 0
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optional<float>& sizeVariation() { return _sizeVariation; }
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const optional<float>& sizeVariation() const { return _sizeVariation; }
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//! Weighting of this symbol versus others in the same group.
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//! Should be an integer >= 1. Default = 1.
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optional<unsigned>& selectionWeight() { return _selectionWeight; }
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const optional<unsigned>& selectionWeight() const { return _selectionWeight; }
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public: // non-serialized properties (for programmatic use only)
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void setSideImage(osg::Image* value) { _sideImage = value; }
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osg::Image* getSideImage() const { return _sideImage.get(); }
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void setTopImage(osg::Image* value) { _topImage = value; }
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osg::Image* getTopImage() const { return _topImage.get(); }
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public:
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virtual Config getConfig() const;
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virtual void mergeConfig( const Config& conf );
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static void parseSLD(const Config& c, class Style& style);
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public: // InstanceSymbol
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/** Creates a new (empty) resource appropriate for this symbol */
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virtual InstanceResource* createResource() const;
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protected:
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optional<StringExpression> _topURL;
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optional<float> _width;
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optional<float> _height;
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optional<float> _sizeVariation;
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optional<unsigned> _selectionWeight;
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osg::ref_ptr<osg::Image> _sideImage;
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osg::ref_ptr<osg::Image> _topImage;
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};
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} // namespace osgEarth
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#endif
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