OpenSceneGraph 3.6.5
AngularAccelOperator
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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_ANGULARACCELOPERATOR
16#define OSGPARTICLE_ANGULARACCELOPERATOR 1
17
19#include <osgParticle/Operator>
20#include <osgParticle/Particle>
21
22#include <osg/CopyOp>
23#include <osg/Object>
24#include <osg/Vec3>
25
26namespace osgParticle
27{
28
33 public:
34 inline AngularAccelOperator();
36
38
40 inline const osg::Vec3& getAngularAcceleration() const;
41
43 inline void setAngularAcceleration(const osg::Vec3& v);
44
46 inline void operate(Particle* P, double dt);
47
49 inline void beginOperate(Program *prg);
50
51 protected:
54
55 private:
56 osg::Vec3 _angul_araccel;
57 osg::Vec3 _xf_angul_araccel;
58 };
59
60 // INLINE FUNCTIONS
61
63 : Operator(), _angul_araccel(0, 0, 0)
64 {
65 }
66
68 : Operator(copy, copyop), _angul_araccel(copy._angul_araccel)
69 {
70 }
71
73 {
74 return _angul_araccel;
75 }
76
78 {
79 _angul_araccel = v;
80 }
81
82 inline void AngularAccelOperator::operate(Particle* P, double dt)
83 {
84 P->addAngularVelocity(_xf_angul_araccel * dt);
85 }
86
88 {
90 _xf_angul_araccel = prg->rotateLocalToWorld(_angul_araccel);
91 } else {
92 _xf_angul_araccel = _angul_araccel;
93 }
94 }
95
96}
97
98
99#endif
Vec3f Vec3
Definition Vec3:21
The osgParticle library is a NodeKit that extends the core scene graph to support particle effects.
Definition AccelOperator:27
Copy Op(erator) used to control whether shallow or deep copy is used during copy construction and clo...
Definition CopyOp:41
@ SHALLOW_COPY
Definition CopyOp:47
void operate(Particle *P, double dt)
Apply the angular acceleration to a particle. Do not call this method manually.
Definition AngularAccelOperator:82
void beginOperate(Program *prg)
Perform some initializations. Do not call this method manually.
Definition AngularAccelOperator:87
void setAngularAcceleration(const osg::Vec3 &v)
Set the angular acceleration vector.
Definition AngularAccelOperator:77
META_Object(osgParticle, AngularAccelOperator)
AngularAccelOperator & operator=(const AngularAccelOperator &)
Definition AngularAccelOperator:53
AngularAccelOperator()
Definition AngularAccelOperator:62
const osg::Vec3 & getAngularAcceleration() const
Get the angular acceleration vector.
Definition AngularAccelOperator:72
virtual ~AngularAccelOperator()
Definition AngularAccelOperator:52
Operator()
Definition Operator:92
Implementation of a particle.
Definition Particle:47
void addAngularVelocity(const osg::Vec3 &dv)
Add a vector to the angular velocity vector.
Definition Particle:525
@ RELATIVE_RF
Definition ParticleProcessor:42
ReferenceFrame getReferenceFrame() const
Get the reference frame.
Definition ParticleProcessor:179
osg::Vec3 rotateLocalToWorld(const osg::Vec3 &P)
Transform a vector from local to world coordinates, discarding translation (valid only during cull tr...
Definition ParticleProcessor:315
An abstract ParticleProcessor descendant for modifying particles "on the fly" during the cull travers...
Definition Program:36

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