openscenegraph
PointPlacer
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1/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
2 *
3 * This library is open source and may be redistributed and/or modified under
4 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
5 * (at your option) any later version. The full license is in LICENSE file
6 * included with this distribution, and on the openscenegraph.org website.
7 *
8 * This library is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * OpenSceneGraph Public License for more details.
12*/
13//osgParticle - Copyright (C) 2002 Marco Jez
14
15#ifndef OSGPARTICLE_POINT_PLACER
16#define OSGPARTICLE_POINT_PLACER 1
17
18#include <osgParticle/CenteredPlacer>
19#include <osgParticle/Particle>
20
21#include <osg/CopyOp>
22#include <osg/Object>
23
24namespace osgParticle
25{
26
27 /** A point-shaped particle placer.
28 This placer class uses the center point defined in its base class <CODE>CenteredPlacer</CODE>
29 to place there all incoming particles.
30 */
31 class PointPlacer: public CenteredPlacer {
32 public:
33 inline PointPlacer();
34 inline PointPlacer(const PointPlacer& copy, const osg::CopyOp& copyop = osg::CopyOp::SHALLOW_COPY);
35
36 META_Object(osgParticle, PointPlacer);
37
38 /** Place a particle.
39 This method is called automatically by <CODE>ModularEmitter</CODE> and should not be called
40 manually.
41 */
42 inline void place(Particle* P) const;
43
44 /// return the control position
45 inline osg::Vec3 getControlPosition() const;
46
47 protected:
48 virtual ~PointPlacer() {}
49 PointPlacer& operator=(const PointPlacer&) { return *this; }
50 };
51
52 // INLINE FUNCTIONS
53
54 inline PointPlacer::PointPlacer()
55 : CenteredPlacer()
56 {
57 }
58
59 inline PointPlacer::PointPlacer(const PointPlacer& copy, const osg::CopyOp& copyop)
60 : CenteredPlacer(copy, copyop)
61 {
62 }
63
64 inline void PointPlacer::place(Particle* P) const
65 {
66 P->setPosition(getCenter());
67 }
68
69
70 inline osg::Vec3 PointPlacer::getControlPosition() const
71 {
72 return getCenter();
73 }
74
75}
76
77
78#endif