/home/cube/sources/osgearth/src/osgEarthFeatures/SubstituteModelFilter

Go to the documentation of this file.

/* -*-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 OSGEARTHFEATURES_SUBSTITUTE_MODEL_FILTER_H
#define OSGEARTHFEATURES_SUBSTITUTE_MODEL_FILTER_H 1

#include <osgEarthFeatures/Common>
#include <osgEarthFeatures/Feature>
#include <osgEarthFeatures/Filter>
#include <osgEarthSymbology/Style>
#include <osgEarthSymbology/MarkerResource>
#include <osgEarth/Utils>

namespace osgEarth { namespace Features
{
    using namespace osgEarth;
    using namespace osgEarth::Symbology;

    class OSGEARTHFEATURES_EXPORT SubstituteModelFilter : public FeaturesToNodeFilter
    {
    public:
        // Call this determine whether this filter is available.
        static bool isSupported() { return true; }

    public:
        SubstituteModelFilter( const Style& style =Style() );

        void setClustering( bool value ) { _cluster = value; }
        bool getClustering() const { return _cluster; }

        void setMergeGeometry( bool value ) { _merge = value; }
        bool getMergeGeometry() const { return _merge; }

        //void setModelMatrix( const osg::Matrixd& value ) { _modelMatrix = value; }
        //const osg::Matrixd& getModelMatrix() const { return _modelMatrix; }

        void setFeatureNameExpr( const StringExpression& expr ) { _featureNameExpr = expr; }
        const StringExpression& getFeatureNameExpr() const { return _featureNameExpr; }

    public:
        virtual osg::Node* push( FeatureList& input, FilterContext& context );

    protected:
        Style                     _style;
        bool                      _cluster;
        bool                      _merge;
        //osg::Matrixd              _modelMatrix;
        StringExpression          _featureNameExpr;

        typedef LRUCache<URI, osg::ref_ptr<MarkerResource> > MarkerCache;
        MarkerCache _markerCache;
        
        bool process(const FeatureList& features, const MarkerSymbol* symbol, Session* session, osg::Group* ap, FilterContext& context );
        bool cluster(const FeatureList& features, const MarkerSymbol* symbol, Session* session, osg::Group* ap, FilterContext& context );
    };

} } // namespace osgEarth::Features

#endif // OSGEARTHFEATURES_SUBSTITUTE_MODEL_FILTER_H