osgEarth 2.1.1
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00001 /* -*-c++-*- */ 00002 /* osgEarth - Dynamic map generation toolkit for OpenSceneGraph 00003 * Copyright 2008-2010 Pelican Mapping 00004 * http://osgearth.org 00005 * 00006 * osgEarth is free software; you can redistribute it and/or modify 00007 * it under the terms of the GNU Lesser General Public License as published by 00008 * the Free Software Foundation; either version 2 of the License, or 00009 * (at your option) any later version. 00010 * 00011 * This program is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 * GNU Lesser General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU Lesser General Public License 00017 * along with this program. If not, see <http://www.gnu.org/licenses/> 00018 */ 00019 00020 #ifndef OSGEARTHFEATURES_SCALE_FILTER_H 00021 #define OSGEARTHFEATURES_SCALE_FILTER_H 1 00022 00023 #include <osgEarthFeatures/Common> 00024 #include <osgEarthFeatures/Feature> 00025 #include <osgEarthFeatures/Filter> 00026 00027 namespace osgEarth { namespace Features 00028 { 00029 using namespace osgEarth; 00030 00035 class OSGEARTHFEATURES_EXPORT ScaleFilter : public FeatureFilter 00036 { 00037 public: 00038 ScaleFilter(); 00039 ScaleFilter( double scale ); 00040 00041 double scale() const { return _scale; } 00042 double& scale() { return _scale; } 00043 00044 public: 00045 virtual FilterContext push( FeatureList& input, FilterContext& cx ); 00046 00047 protected: 00048 double _scale; 00049 }; 00050 00051 } } // namespace osgEarth::Features 00052 00053 #endif // OSGEARTHFEATURES_SCALE_FILTER_H