Spectrogram
Class SpectrogramProjector

java.lang.Object
  PamView.GeneralProjector
      Spectrogram.SpectrogramProjector

public class SpectrogramProjector
extends GeneralProjector

Spectrogram projector for overlaying data onto the spectrogram bitmap which will always be scaled 1:1 with regard to pixels per frequency or time bin.

Author:

Doug Gillespie

See Also:

DirectDrawProjector

Nested Class Summary

Nested classes/interfaces inherited from class PamView.GeneralProjector

GeneralProjector.ParameterType, GeneralProjector.ParameterUnits

Field Summary

private int	pixOriginX
private int	pixOriginY
private int	specHeight
private SpectrogramDisplay	spectrogramDisplay
private int	specWidth
private long	timeOffsetMillis
private double	xScale xScale is in pixels per millisecond.
private double	yScale

Fields inherited from class PamView.GeneralProjector

NPARAMETERS

Constructor Summary

SpectrogramProjector(SpectrogramDisplay spectrogramDisplay)

Method Summary

double	dataToX(double d1, double d2)
double	dataToY(double d1, double frequency)
Coordinate3d	getCoord3d(double d1, double d2, double d3) Function ultimately used by a PamDataBlock to convert it's own data, in whatever form that is in into screen coordinates.
void	setOffset(long timeOffsetMillis, int timeOffsetPixs) Set the x and the time offset
void	setScales(double xScale, double yScale, int specWidth, int specHeight)

Methods inherited from class PamView.GeneralProjector

addHoverData, addHoverData, clearHoverList, findClosestDataUnitIndex, findClosestDataUnitIndex, getHoveredDataUnit, getMouseHoverAdapter, getParmeterType, getParmeterUnits, setParmeterType, setParmeterUnits

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

xScale

private double xScale

xScale is in pixels per millisecond.

yScale

private double yScale

pixOriginX

private int pixOriginX

pixOriginY

private int pixOriginY

specWidth

private int specWidth

specHeight

private int specHeight

timeOffsetMillis

private long timeOffsetMillis

spectrogramDisplay

private SpectrogramDisplay spectrogramDisplay

Constructor Detail

SpectrogramProjector

SpectrogramProjector(SpectrogramDisplay spectrogramDisplay)

Method Detail

setScales

public void setScales(double xScale,
                      double yScale,
                      int specWidth,
                      int specHeight)

Parameters:

xScale - pixels per millisecond

yScale - 2/fftLength

specWidth - display width

specHeight - display height

setOffset

public void setOffset(long timeOffsetMillis,
                      int timeOffsetPixs)

Set the x and the time offset

Parameters:

timeOffsetMillis - time offset in Java milliseconds

timeOffsetPixs - position in pixels

getCoord3d

public Coordinate3d getCoord3d(double d1,
                               double d2,
                               double d3)

Description copied from class: GeneralProjector

Function ultimately used by a PamDataBlock to convert it's own data, in whatever form that is in into screen coordinates.

Specified by:

getCoord3d in class GeneralProjector

Parameters:

d1 - d2 and d3 are data representing whatever is appropriate for the concrete instance of the projector (e.g. Latitude, Longitude, depth, Time Frequency, etc)

Returns:

A 3 dimensional coordinate (realistically z is never currently used)

dataToX

public double dataToX(double d1,
                      double d2)

dataToY

public double dataToY(double d1,
                      double frequency)