/usr/include/osgEarthFeatures/ScatterFilter is in libosgearth-dev 2.7.0+dfsg-2+b3.
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The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 | /* -*-c++-*- */
/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
* Copyright 2015 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_SCATTER_FILTER_H
#define OSGEARTHFEATURES_SCATTER_FILTER_H 1
#include <osgEarthFeatures/Common>
#include <osgEarthFeatures/Filter>
#include <osgEarth/Random>
namespace osgEarth { namespace Features
{
using namespace osgEarth;
using namespace osgEarth::Symbology;
/**
* Feature filter that will take source feature and scatter points within
* that feature. It will either scatter points randomly (the default), or
* at fixed intervals, based on the density.
*/
class OSGEARTHFEATURES_EXPORT ScatterFilter : public FeatureFilter
{
public:
// Call this determine whether this filter is available.
static bool isSupported() { return true; }
public:
ScatterFilter();
virtual ~ScatterFilter() { }
/** Approximate instances per sqkm. */
void setDensity( float value ) { _density = value; }
float getDensity() const { return _density; }
/** Whether to randomly scatter (as opposed to a fixed interval scatter) */
void setRandom( bool value ) { _random = value; }
bool getRandom() const { return _random; }
/** Seed value for the random number generator */
void setRandomSeed( unsigned value ) { _randomSeed = value; }
unsigned getRandomSeed() const { return _randomSeed; }
public:
/** Processes a new feature list */
virtual FilterContext push( FeatureList& input, FilterContext& context );
protected:
void polyScatter(
const Geometry* input,
const SpatialReference* inputSRS,
const FilterContext& context,
PointSet* output);
void lineScatter(
const Geometry* input,
const SpatialReference* inputSRS,
const FilterContext& context,
PointSet* output);
private:
float _density;
bool _random;
unsigned _randomSeed;
Random _prng;
};
} } // namespace osgEarth::Features
#endif // OSGEARTHFEATURES_SUBSTITUTE_MODEL_FILTER_H
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