Plotter<SpotPlotter.SpotStyle>
public class SpotPlotter extends AbstractPlotter<SpotPlotter.SpotStyle>
This implements most of the required interfaces more or less from
scratch to show what's going on.
Reusing infrastructure from some other existing plotters
(e.g. subclassing ShapeForm
) may be more sensible
where appropriate.
Modifier and Type | Class | Description |
---|---|---|
static class |
SpotPlotter.SpotStyle |
Style implementation for spots.
|
Constructor | Description |
---|---|
SpotPlotter() |
Constructor.
|
Modifier and Type | Method | Description |
---|---|---|
PlotLayer |
createLayer(DataGeom geom,
DataSpec dataSpec,
SpotPlotter.SpotStyle style) |
Creates a PlotLayer based on the given geometry, data and style.
|
SpotPlotter.SpotStyle |
createStyle(ConfigMap config) |
Creates a style that can be used when creating a plot layer.
|
java.lang.String |
getPlotterDescription() |
Returns an XML description of this plotter.
|
ConfigKey[] |
getStyleKeys() |
Returns the configuration keys used to configure style for this plotter.
|
getCoordGroup, getPlotterIcon, getPlotterName, hasReports
public java.lang.String getPlotterDescription()
Plotter
Note: really this should appear at the LayerType level.
public ConfigKey[] getStyleKeys()
Plotter
Plotter.createStyle(uk.ac.starlink.ttools.plot2.config.ConfigMap)
method.public SpotPlotter.SpotStyle createStyle(ConfigMap config)
Plotter
Plotter.getStyleKeys()
.
The return value can be used as input to Plotter.createLayer(uk.ac.starlink.ttools.plot2.DataGeom, uk.ac.starlink.ttools.plot2.data.DataSpec, S)
.config
- map of style configuration itemspublic PlotLayer createLayer(DataGeom geom, DataSpec dataSpec, SpotPlotter.SpotStyle style)
Plotter
The style
parameter is the result of a call to
Plotter.createStyle(uk.ac.starlink.ttools.plot2.config.ConfigMap)
.
The dataSpec
parameter must contain the coordinates
defined by this plotter's CoordGroup.
The pointDataGeom
parameter is only used if
getCoordGroup()
.
getPositionCount
returns a non-zero value,
otherwise the plot does not have point positions.
It is legal to supply null for any of the parameters; if insufficient data is supplied to generate a plot, then the method should return null.
Creating a layer should be cheap; layers may be created and not used.
geom
- indicates base position coordinates and their
mapping to points in the data space;
if non-null, the data geom's
DataGeom.hasPosition()
method will return truedataSpec
- specifies the data required for the plotstyle
- data style as obtained from createStyle
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