Class LinePlotter
java.lang.Object
uk.ac.starlink.ttools.plot2.layer.AbstractPlotter<LinePlotter.LinesStyle>
uk.ac.starlink.ttools.plot2.layer.LinePlotter
- All Implemented Interfaces:
Plotter<LinePlotter.LinesStyle>
Plotter that plots a line between data points.
- Since:
- 15 Feb 2013
- Author:
- Mark Taylor
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Nested Class Summary
Nested Classes -
Field Summary
FieldsModifier and TypeFieldDescriptionstatic final String
String used to indicate no axis sorting.Config key for point sequence pre-sorting in Plane plot.Config key for point sequence pre-sorting in Time plot. -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptioncreateLayer
(DataGeom geom, DataSpec dataSpec, LinePlotter.LinesStyle style) Creates a PlotLayer based on the given geometry, data and style.createStyle
(ConfigMap config) Creates a style that can be used when creating a plot layer.Returns an XML description of this plotter.ConfigKey<?>[]
Returns the configuration keys used to configure style for this plotter.Methods inherited from class uk.ac.starlink.ttools.plot2.layer.AbstractPlotter
getCoordGroup, getPlotterIcon, getPlotterName, getRangeStyleKey, hasReports
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Field Details
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NOSORT_TXT
String used to indicate no axis sorting.- See Also:
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PLANE_SORTAXIS_KEY
Config key for point sequence pre-sorting in Plane plot. -
TIME_SORTAXIS_KEY
Config key for point sequence pre-sorting in Time plot.
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Constructor Details
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LinePlotter
Constructor.
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Method Details
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getPlotterDescription
Description copied from interface:Plotter
Returns an XML description of this plotter.Note: really this should appear at the LayerType level.
- Returns:
- one or more <p> elements
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getStyleKeys
Description copied from interface:Plotter
Returns the configuration keys used to configure style for this plotter. The keys in the return value are used in the map supplied to thePlotter.createStyle(uk.ac.starlink.ttools.plot2.config.ConfigMap)
method.- Returns:
- keys used when creating a style for this plotter.
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createStyle
Description copied from interface:Plotter
Creates a style that can be used when creating a plot layer. The keys that are significant in the supplied config map are those returned byPlotter.getStyleKeys()
. The return value can be used as input toPlotter.createLayer(uk.ac.starlink.ttools.plot2.DataGeom, uk.ac.starlink.ttools.plot2.data.DataSpec, S)
.- Parameters:
config
- map of style configuration items- Returns:
- plotter-specific plot style
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createLayer
Description copied from interface:Plotter
Creates a PlotLayer based on the given geometry, data and style.The
style
parameter is the result of a call toPlotter.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 theCoordGroup.getBasicPositionCount()
orCoordGroup.getExtraPositionCount()
method from this plotter's CoordGroup return 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.
- Parameters:
geom
- indicates base position coordinates and their mapping to points in the data spacedataSpec
- specifies the data required for the plotstyle
- data style as obtained fromcreateStyle
- Returns:
- new plot layer, or null if no drawing will take place
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