OpenSceneGraph 3.6.5
Interpolator
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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_INTERPOLATOR
16#define OSGPARTICLE_INTERPOLATOR
17
18#include <osgParticle/range>
19
20#include <osg/CopyOp>
21#include <osg/Object>
22#include <osg/Vec2>
23#include <osg/Vec3>
24#include <osg/Vec4>
25
26namespace osgParticle
27{
28
30 class Interpolator : public osg::Object {
31 public:
33 : osg::Object() {}
34
36 : osg::Object(copy, copyop) {}
37
38 virtual const char* libraryName() const { return "osgParticle"; }
39 virtual const char* className() const { return "Interpolator"; }
40 virtual bool isSameKindAs(const osg::Object* obj) const { return dynamic_cast<const Interpolator* >(obj) != 0; }
41
43 virtual float interpolate(float t, float y1, float y2) const = 0;
44
46 virtual osg::Vec2 interpolate(float t, const osg::Vec2& y1, const osg::Vec2& y2) const
47 {
48 return osg::Vec2(
49 interpolate(t, y1.x(), y2.x()),
50 interpolate(t, y1.y(), y2.y())
51 );
52 }
53
55 virtual osg::Vec3 interpolate(float t, const osg::Vec3& y1, const osg::Vec3& y2) const
56 {
57 return osg::Vec3(
58 interpolate(t, y1.x(), y2.x()),
59 interpolate(t, y1.y(), y2.y()),
60 interpolate(t, y1.z(), y2.z())
61 );
62 }
63
65 virtual osg::Vec4 interpolate(float t, const osg::Vec4& y1, const osg::Vec4& y2) const
66 {
67 return osg::Vec4(
68 interpolate(t, y1.x(), y2.x()),
69 interpolate(t, y1.y(), y2.y()),
70 interpolate(t, y1.z(), y2.z()),
71 interpolate(t, y1.w(), y2.w())
72 );
73 }
74
75 template<class ValueType>
76 ValueType interpolate(float t, const range<ValueType>& r) const
77 {
78 return interpolate(t, r.minimum, r.maximum);
79 }
80
81 protected:
82 virtual ~Interpolator() {}
83 };
84
85}
86
87#endif
The core osg library provides the basic scene graph classes such as Nodes, State and Drawables,...
Definition AlphaFunc:19
Vec2f Vec2
Definition Vec2:21
Vec3f Vec3
Definition Vec3:21
Vec4f Vec4
Definition Vec4:21
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
Base class/standard interface for objects which require IO support, cloning and reference counting.
Definition Object:61
Object()
Construct an object.
Definition Object:69
value_type & x()
Definition Vec2f:67
value_type & y()
Definition Vec2f:68
value_type & z()
Definition Vec3f:82
value_type & y()
Definition Vec3f:81
value_type & x()
Definition Vec3f:80
value_type & y()
Definition Vec4f:88
value_type & x()
Definition Vec4f:87
value_type & z()
Definition Vec4f:89
value_type & w()
Definition Vec4f:90
virtual float interpolate(float t, float y1, float y2) const =0
Interpolate between floats. Must be overridden in descendant classes.
virtual ~Interpolator()
Definition Interpolator:82
Interpolator()
Definition Interpolator:32
virtual const char * className() const
return the name of the object's class type.
Definition Interpolator:39
Interpolator(const Interpolator &copy, const osg::CopyOp &copyop=osg::CopyOp::SHALLOW_COPY)
Definition Interpolator:35
virtual osg::Vec4 interpolate(float t, const osg::Vec4 &y1, const osg::Vec4 &y2) const
Interpolate between 4-dimensional vectors. Default behavior is to interpolate each component separate...
Definition Interpolator:65
virtual osg::Vec3 interpolate(float t, const osg::Vec3 &y1, const osg::Vec3 &y2) const
Interpolate between 3-dimensional vectors. Default behavior is to interpolate each component separate...
Definition Interpolator:55
virtual const char * libraryName() const
return the name of the object's library.
Definition Interpolator:38
virtual osg::Vec2 interpolate(float t, const osg::Vec2 &y1, const osg::Vec2 &y2) const
Interpolate between 2-dimensional vectors. Default behavior is to interpolate each component separate...
Definition Interpolator:46
virtual bool isSameKindAs(const osg::Object *obj) const
Definition Interpolator:40
ValueType interpolate(float t, const range< ValueType > &r) const
Definition Interpolator:76
A simple struct template useful to store ranges of values as min/max pairs.
Definition range:39
ValueType maximum
Higher bound.
Definition range:45
ValueType minimum
Lower bound.
Definition range:42

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