This file is indexed.

/usr/include/osgEarthDrivers/engine_mp/MPTerrainEngineOptions is in libosgearth-dev 2.7.0+dfsg-2+b3.

This file is owned by root:root, with mode 0o644.

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
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
/* -*-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 OSGEARTH_DRIVERS_MP_TERRAIN_ENGINE_OPTIONS
#define OSGEARTH_DRIVERS_MP_TERRAIN_ENGINE_OPTIONS 1

#include <osgEarth/Common>
#include <osgEarth/TerrainOptions>
#include <osgEarthSymbology/Color>

namespace osgEarth { namespace Drivers { namespace MPTerrainEngine
{
    using namespace osgEarth;
    using namespace osgEarth::Symbology;

    /**
     * Options for configuring the MP Engine driver.
     */
    class MPTerrainEngineOptions : public TerrainOptions // NO EXPORT (header-only)
    {
    public:
        MPTerrainEngineOptions( const ConfigOptions& options =ConfigOptions() ) : TerrainOptions( options ),
            _skirtRatio        ( 0.05 ),
            _quickRelease      ( true ),
            _normalizeEdges    ( false ),
            _rangeMode         ( osg::LOD::DISTANCE_FROM_EYE_POINT ),
            _tilePixelSize     ( 256 ),
            _color             ( Color::White ),
            _incrementalUpdate ( false ),
            _smoothing         ( false )
         {
            setDriver( "mp" );
            fromConfig( _conf );
        }

        /** dtor */
        virtual ~MPTerrainEngineOptions() { }

    public:
        /** Ratio of terrain tile skirt height to tile radius */
        optional<float>& heightFieldSkirtRatio() { return _skirtRatio; }
        const optional<float>& heightFieldSkirtRatio() const { return _skirtRatio; }

        /** Whether to run a post-render process that releases GL objects as quickly as
          * possible, freeing up memory faster */
        optional<bool>& quickReleaseGLObjects() { return _quickRelease; }
        const optional<bool>& quickReleaseGLObjects() const { return _quickRelease; }

        /** Whether to average normal vectors on tile boundaries. Doing so reduces the
         *  the appearance of seams when using lighting, but requires extra CPU work. */
        optional<bool>& normalizeEdges() { return _normalizeEdges; }
        const optional<bool>& normalizeEdges() const { return _normalizeEdges; }

        /** Mode to use when calculating LOD switching distances */
        optional<osg::LOD::RangeMode>& rangeMode() { return _rangeMode;}
        const optional<osg::LOD::RangeMode>& rangeMode() const { return _rangeMode;}

        /** The size of the tile, in pixels, when using rangeMode = PIXEL_SIZE_ON_SCREEN */
        optional<float>& tilePixelSize() { return _tilePixelSize; }
        const optional<float>& tilePixelSize() const { return _tilePixelSize; }

        /** The color of the globe surface where no images are applied */
        optional<Color>& color() { return _color; }
        const optional<Color>& color() const { return _color; }

        /**
         * Whether to create smooth transitions between elevation datasets at differing LODs
         * by inheriting low-resolution data from parent tiles and filling in the new data.
         * When smoothing is on, elevation may not be "true" in all locations, since the engine
         * will interpolate values from low LODs. Defaults to FALSE.
         */
        optional<bool>& elevationSmoothing() { return _smoothing; }
        const optional<bool>& elevationSmoothing() const { return _smoothing; }

    public:

        /** @deprecated */
        optional<bool>& incrementalUpdate() { return _incrementalUpdate; }
        const optional<bool>& incrementalUpdate() const { return _incrementalUpdate; }

    protected:
        virtual Config getConfig() const {
            Config conf = TerrainOptions::getConfig();
            conf.updateIfSet( "skirt_ratio", _skirtRatio );
            conf.updateIfSet( "quick_release_gl_objects", _quickRelease );
            conf.updateIfSet( "normalize_edges", _normalizeEdges);
            conf.updateIfSet( "tile_pixel_size", _tilePixelSize );
            conf.updateIfSet( "range_mode", "PIXEL_SIZE_ON_SCREEN", _rangeMode, osg::LOD::PIXEL_SIZE_ON_SCREEN );
            conf.updateIfSet( "range_mode", "DISTANCE_FROM_EYE_POINT", _rangeMode, osg::LOD::DISTANCE_FROM_EYE_POINT);
            conf.updateIfSet( "color", _color );
            conf.updateIfSet( "incremental_update", _incrementalUpdate );
            conf.updateIfSet( "elevation_smoothing", _smoothing );

            return conf;
        }

        virtual void mergeConfig( const Config& conf ) {
            TerrainOptions::mergeConfig( conf );
            fromConfig( conf );
        }

    private:
        void fromConfig( const Config& conf ) {
            conf.getIfSet( "skirt_ratio", _skirtRatio );
            conf.getIfSet( "quick_release_gl_objects", _quickRelease );
            conf.getIfSet( "normalize_edges", _normalizeEdges );
            conf.getIfSet( "tile_pixel_size", _tilePixelSize );

            conf.getIfSet( "range_mode", "PIXEL_SIZE_ON_SCREEN", _rangeMode, osg::LOD::PIXEL_SIZE_ON_SCREEN );
            conf.getIfSet( "range_mode", "DISTANCE_FROM_EYE_POINT", _rangeMode, osg::LOD::DISTANCE_FROM_EYE_POINT);
            conf.getIfSet( "color", _color );
            conf.getIfSet( "incremental_update", _incrementalUpdate );
            conf.getIfSet( "elevation_smoothing", _smoothing );
       }

        optional<float>               _skirtRatio;
        optional<bool>                _quickRelease;
        optional<float>               _lodFallOff;
        optional<bool>                _normalizeEdges;
        optional<osg::LOD::RangeMode> _rangeMode;
        optional<float>               _tilePixelSize;
        optional<Color>               _color;
        optional<bool>                _incrementalUpdate;
        optional<bool>                _smoothing;
    };

} } } // namespace osgEarth::Drivers::MPTerrainEngine

#endif // OSGEARTH_DRIVERS_MP_TERRAIN_ENGINE_OPTIONS