9b95a78e5d
Finally, I have fixed TemplateTarget<osg::Quat>::lerp() as it was giving incorrect results when interpolating between some small rotations. From Cedric Pinson, i renamed the method in channel to be more general. Adjusted the CubicBezier key constructor to use a single value as input.
79 lines
2.4 KiB
C++
79 lines
2.4 KiB
C++
/* -*-c++-*-
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* Copyright (C) 2008 Cedric Pinson <cedric.pinson@plopbyte.net>
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* OpenSceneGraph Public License for more details.
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*/
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#ifndef OSGANIMATION_CUBIC_BEZIER_H
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#define OSGANIMATION_CUBIC_BEZIER_H
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#include <osg/Vec2>
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#include <osg/Vec3>
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#include <osg/Vec4>
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#include <osg/Quat>
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namespace osgAnimation
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{
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template <class T>
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struct TemplateCubicBezier
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{
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T mPoint[3];
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const T& getP0() const { return mPoint[0];}
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const T& getP1() const { return mPoint[1];}
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const T& getP2() const { return mPoint[2];}
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TemplateCubicBezier(const T& v0, const T& v1, const T& v2)
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{
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mPoint[0] = v0;
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mPoint[1] = v1;
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mPoint[2] = v2;
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}
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// Constructor with value only
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TemplateCubicBezier(const T& v0)
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{
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mPoint[0] = v0;
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mPoint[1] = v0;
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mPoint[2] = v0;
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}
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TemplateCubicBezier() {}
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const T& getPosition() const { return mPoint[0];}
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const T& getTangentPoint1() const { return mPoint[1];}
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const T& getTangentPoint2() const { return mPoint[2];}
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// steaming operators.
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friend std::ostream& operator << (std::ostream& output, const TemplateCubicBezier<T>& vec)
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{
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output << vec.mPoint[0] << " "
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<< vec.mPoint[1] << " "
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<< vec.mPoint[2];
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return output; // to enable cascading
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}
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friend std::istream& operator >> (std::istream& input, TemplateCubicBezier<T>& vec)
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{
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input >> vec.mPoint[0] >> vec.mPoint[1] >> vec.mPoint[2];
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return input;
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}
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};
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typedef TemplateCubicBezier<float> FloatCubicBezier;
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typedef TemplateCubicBezier<double> DoubleCubicBezier;
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typedef TemplateCubicBezier<osg::Vec2> Vec2CubicBezier;
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typedef TemplateCubicBezier<osg::Vec3> Vec3CubicBezier;
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typedef TemplateCubicBezier<osg::Vec4> Vec4CubicBezier;
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}
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#endif
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