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QwavPeakInterpolator Class Reference
[Peak interpolators]

Abstract baseclass of all interpolation strategies. More...

#include <qwavpeakinterpolator.h>

Inheritance diagram for QwavPeakInterpolator:

[legend]List of all members.

Public Methods
virtual QwavPeakInfo	getPeak (const QwavPeakVector *pv, int pixel, int firstSample, Float zoomFactor, uint channel=1) const=0
virtual const string	getName () const=0
Constructor & Destructor
	QwavPeakInterpolator ()
virtual	~QwavPeakInterpolator ()

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Detailed Description

Abstract baseclass of all interpolation strategies.

A peak interpolation strategy calculates QwavPeakInfo objects for a pixel based on the data contained in a QwavPeakVector.

The QwavPeakInfo contains informations about a block of samples and is used to paint the waveform.

To interpolate the correct informations from the QwavPeakVector the first visible sample and the zoom factor of the view is needed.

See also:

QwavPeakInfo QwavPeakVector

Author:

Peter Eschler

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Constructor & Destructor Documentation

Qwav_BEGIN_NAMESPACE QwavPeakInterpolator::QwavPeakInterpolator (    )

Standard constructor. Does nothing.

QwavPeakInterpolator::~QwavPeakInterpolator (    )  [virtual]

Destructor.

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Member Function Documentation

virtual const string QwavPeakInterpolator::getName (    )  const [pure virtual]

Returns the name of this interpolation strategy. Have to be implemented in subclasses to return a unique name (e.g. the class name). Returns: the name of this interpolation strategy Implemented in QwavDefaultPeakInterpolator, and QwavExperimentalPeakInterpolation.

virtual QwavPeakInfo QwavPeakInterpolator::getPeak (  const QwavPeakVector *    pv, int    pixel, int    firstSample, Float    zoomFactor, uint    channel = 1 )  const [pure virtual]

Returns the peak of sample pixel from the given peak vector pv. The firstSample is the the first visible sample in the view to get the pixel for and zoomFac the zoom factor of this view. Parameters: pv  the peak vector to get the data from pixel  the pixel to get the peak for firstSample  the first visible sample in the target view zoomFac  the zoom factor of the target view See also: WaveView QwavPeakVector Implemented in QwavDefaultPeakInterpolator, and QwavExperimentalPeakInterpolation.

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The documentation for this class was generated from the following files:

• qwavpeakinterpolator.h
• qwavpeakinterpolator.cpp

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