This file is indexed.

/usr/include/osgParticle/SectorPlacer is in libopenscenegraph-dev 3.2.0~rc1-4.

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
145
146
147
148
149
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
 *
 * This library is open source and may be redistributed and/or modified under
 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
 * (at your option) any later version.  The full license is in LICENSE file
 * included with this distribution, and on the openscenegraph.org website.
 *
 * This library 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
 * OpenSceneGraph Public License for more details.
*/
//osgParticle - Copyright (C) 2002 Marco Jez

#ifndef OSGPARTICLE_SECTOR_PLACER
#define OSGPARTICLE_SECTOR_PLACER 1

#include <osgParticle/CenteredPlacer>
#include <osgParticle/Particle>
#include <osgParticle/range>

#include <osg/CopyOp>
#include <osg/Object>
#include <osg/Vec3>
#include <osg/Math>

namespace osgParticle
{

    /**     A sector-shaped particle placer.
        This placer sets the initial position of incoming particle by choosing a random position
        within a circular sector; this sector is defined by three parameters: a <I>center point</I>,
        which is inherited directly from <CODE>osgParticle::CenteredPlacer</CODE>, a range of values
        for <I>radius</I>, and a range of values for the <I>central angle</I> (sometimes called    <B>phi</B>).
    */
    class SectorPlacer: public CenteredPlacer {
    public:
        inline SectorPlacer();
        inline SectorPlacer(const SectorPlacer& copy, const osg::CopyOp& copyop = osg::CopyOp::SHALLOW_COPY);

        /// Get the range of possible values for radius.
        inline const rangef& getRadiusRange() const;

        /// Set the range of possible values for radius.
        inline void setRadiusRange(const rangef& r);

        /// Set the range of possible values for radius.
        inline void setRadiusRange(float r1, float r2);

        /// Get the range of possible values for the central angle.
        inline const rangef& getPhiRange() const;

        /// Set the range of possible values for the central angle.
        inline void setPhiRange(const rangef& r);

        /// Set the range of possible values for the central angle.
        inline void setPhiRange(float r1, float r2);

        META_Object(osgParticle, SectorPlacer);

        /// Place a particle. Do not call it manually.
        inline void place(Particle* P) const;

        /// return the area of the sector
        inline float volume() const;

        /// return the control position
        inline osg::Vec3 getControlPosition() const;

    protected:
        virtual ~SectorPlacer() {}
        SectorPlacer& operator=(const SectorPlacer&) { return *this; }

    private:
        rangef _rad_range;
        rangef _phi_range;
    };

    // INLINE FUNCTIONS

    inline SectorPlacer::SectorPlacer()
    : CenteredPlacer(), _rad_range(0, 1), _phi_range(0, osg::PI*2)
    {
    }

    inline SectorPlacer::SectorPlacer(const SectorPlacer& copy, const osg::CopyOp& copyop)
    : CenteredPlacer(copy, copyop), _rad_range(copy._rad_range), _phi_range(copy._phi_range)
    {
    }

    inline const rangef& SectorPlacer::getRadiusRange() const
    {
        return _rad_range;
    }

    inline const rangef& SectorPlacer::getPhiRange() const
    {
        return _phi_range;
    }

    inline void SectorPlacer::setRadiusRange(const rangef& r)
    {
        _rad_range = r;
    }

    inline void SectorPlacer::setRadiusRange(float r1, float r2)
    {
        _rad_range.minimum = r1;
        _rad_range.maximum = r2;
    }

    inline void SectorPlacer::setPhiRange(const rangef& r)
    {
        _phi_range = r;
    }

    inline void SectorPlacer::setPhiRange(float r1, float r2)
    {
        _phi_range.minimum = r1;
        _phi_range.maximum = r2;
    }

    inline void SectorPlacer::place(Particle* P) const
    {
        float rad = _rad_range.get_random_sqrtf();
        float phi = _phi_range.get_random();

        osg::Vec3 pos(
            getCenter().x() + rad * cosf(phi),
            getCenter().y() + rad * sinf(phi),
            getCenter().z());

        P->setPosition(pos);
    }

    inline float SectorPlacer::volume() const
    {
        return 0.5f * (_phi_range.maximum - _phi_range.minimum) *
               (_rad_range.maximum*_rad_range.maximum - _rad_range.minimum*_rad_range.minimum);
    }

    inline osg::Vec3 SectorPlacer::getControlPosition() const
    {
        return getCenter();
    }

}

#endif