/usr/include/osgParticle/LinearInterpolator is in libopenscenegraph-dev 3.2.1-6.
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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 | /* -*-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_LINEARINTERPOLATOR
#define OSGPARTICLE_LINEARINTERPOLATOR
#include <osgParticle/Interpolator>
#include <osg/CopyOp>
#include <osg/Object>
#include <osg/Vec3>
#include <osg/Vec4>
namespace osgParticle
{
/// A linear interpolator.
class LinearInterpolator: public Interpolator
{
public:
LinearInterpolator()
: Interpolator() {}
LinearInterpolator(const LinearInterpolator& copy, const osg::CopyOp& copyop = osg::CopyOp::SHALLOW_COPY)
: Interpolator(copy, copyop) {}
META_Object(osgParticle, LinearInterpolator);
virtual float interpolate(float t, float y1, float y2) const
{
return y1 + (y2 - y1) * t;
}
protected:
virtual ~LinearInterpolator() {}
};
}
#endif
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