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/*=========================================================================
Program: ParaView
Module: vtkPVSinusoidKeyFrame.h
Copyright (c) Kitware, Inc.
All rights reserved.
See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/**
* @class vtkPVSinusoidKeyFrame
*
* Interplates a sinusoid. At any given time \c t, the resultant
* value obtained from this keyframe is given by :
* value = this->Offset + (Key Value) * Sin (2*pi*theta);
* where theta = this->Frequency*t + (this->Phase/360).
* As is clear from the equation, the amplitude of the wave
* is obtained from the value of the keyframe.
*/
#ifndef vtkPVSinusoidKeyFrame_h
#define vtkPVSinusoidKeyFrame_h
#include "vtkPVKeyFrame.h"
class VTKPVANIMATION_EXPORT vtkPVSinusoidKeyFrame : public vtkPVKeyFrame
{
public:
static vtkPVSinusoidKeyFrame* New();
vtkTypeMacro(vtkPVSinusoidKeyFrame, vtkPVKeyFrame);
void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
/**
* This method will do the actual interpolation.
* currenttime is normalized to the time range between
* this key frame and the next key frame.
*/
virtual void UpdateValue(
double currenttime, vtkPVAnimationCue* cue, vtkPVKeyFrame* next) VTK_OVERRIDE;
//@{
/**
* Get/Set the phase for the sine wave.
*/
vtkSetMacro(Phase, double);
vtkGetMacro(Phase, double);
//@}
//@{
/**
* Get/Set the frequency for the sine wave in number of cycles
* for the entire length of this keyframe i.e. until the next key frame.
*/
vtkSetMacro(Frequency, double);
vtkGetMacro(Frequency, double);
//@}
//@{
/**
* Get/Set the Wave offset.
*/
vtkSetMacro(Offset, double);
vtkGetMacro(Offset, double);
//@}
protected:
vtkPVSinusoidKeyFrame();
~vtkPVSinusoidKeyFrame();
double Phase;
double Frequency;
double Offset;
private:
vtkPVSinusoidKeyFrame(const vtkPVSinusoidKeyFrame&) VTK_DELETE_FUNCTION;
void operator=(const vtkPVSinusoidKeyFrame&) VTK_DELETE_FUNCTION;
};
#endif
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