org.das2.graph.HugeScatterRenderer

HugeScatterRenderer This renderer can handle vector data sets with hundreds of thousands of points by histogramming the points and then creating a greyscale spectrogram of the histogram. The property "saturationHitCount" defines the number of pixel hits that will make the pixel black. This has been modified a lot over the years:

connecting lines when the data is of timeseries,
alternate modes are used when we zoom in closely,
support for QDataSets and waveform scheme data,
lone pixels are highlighted.

Created on April 14, 2005, 8:45 PM

HugeScatterRenderer( org.das2.dataset.DataSetDescriptor dsd )

PROP_ENVELOPE

acceptContext

acceptContext( int x, int y ) → boolean

Parameters

x - an int
y - an int

Returns:

boolean

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doAutorange

doAutorange( QDataSet ds ) → QDataSet

Parameters

ds - a QDataSet

Returns:

org.das2.qds.QDataSet

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getColor

getColor( ) → java.awt.Color

Returns:

java.awt.Color

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getEnvelope

getEnvelope( ) → int

Returns:

int

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getListIcon

getListIcon( ) → javax.swing.Icon

Returns:

javax.swing.Icon

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getSaturationHitCount

getSaturationHitCount( ) → int

Returns:

int

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isPrint300dpi

isPrint300dpi( ) → boolean

Getter for property draw300dpi.

Returns:

Value of property draw300dpi.

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render

render( java.awt.Graphics2D g1, org.das2.graph.DasAxis xAxis, org.das2.graph.DasAxis yAxis ) → void

Parameters

g1 - a Graphics2D
xAxis - a DasAxis
yAxis - a DasAxis

Returns:

void (returns nothing)

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selectionArea

selectionArea( ) → java.awt.Shape

return a Shape object showing where the data lie and focus should be accepted.

Returns:

a java.awt.Shape

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setColor

setColor( java.awt.Color color ) → void

Parameters

color - a Color

Returns:

void (returns nothing)

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setDataSet

setDataSet( QDataSet ds ) → void

Parameters

ds - a QDataSet

Returns:

void (returns nothing)

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setEnvelope

setEnvelope( int envelope ) → void

0=none. 1=faint envelope with points on top. 2=only envelope

Parameters

envelope - an int

Returns:

void (returns nothing)

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setPrint300dpi

setPrint300dpi( boolean print300dpi ) → void

Setter for property draw300dpi.

Parameters

print300dpi - New value of property draw300dpi.

Returns:

void (returns nothing)

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setSaturationHitCount

setSaturationHitCount( int d ) → void

Parameters

d - an int

Returns:

void (returns nothing)

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updatePlotImage

updatePlotImage( org.das2.graph.DasAxis xAxis, org.das2.graph.DasAxis yAxis, ProgressMonitor monitor ) → void

Parameters

xAxis - a DasAxis
yAxis - a DasAxis
monitor - a ProgressMonitor

Returns:

void (returns nothing)

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