Class AbstractPlotLayer

java.lang.Object
uk.ac.starlink.ttools.plot2.layer.AbstractPlotLayer
All Implemented Interfaces:
PlotLayer
public abstract class AbstractPlotLayer extends Object implements PlotLayer
Partial PlotLayer implementation. This implementation just supplies straightforward implementations of the interface accessor methods.
Since:
15 Feb 2013
Author:
Mark Taylor

  • Constructor Details

    • AbstractPlotLayer

      protected AbstractPlotLayer(Plotter<?> plotter, DataGeom geom, DataSpec dataSpec, Style style, LayerOpt opt)
      Constructor.
      Parameters:
      plotter - plotter that created this layer
      geom - defines data space
      dataSpec - required data values
      style - plotting style
      opt - layer optimisation option

  • Method Details

    • getPlotter

      public Plotter<?> getPlotter()
      Description copied from interface: PlotLayer
      Returns the plotter that generated this layer. Used to help determine whether this layer is the same as another one.
      Specified by:
      getPlotter in interface PlotLayer
      Returns:
      parent plotter

    • getDataGeom

      public DataGeom getDataGeom()
      Description copied from interface: PlotLayer
      Returns the data geometry used by this layer. This can be used in conjunction with the DataSpec to determine the base positions in data space of what has been plotted. Depending on the nature of the returned object, these positions may be actual points in the data space, or some higher-dimensional object. If null is returned, no such information is available.
      Specified by:
      getDataGeom in interface PlotLayer
      Returns:
      data geom, or null

    • extendCoordinateRanges

      public void extendCoordinateRanges(Range[] ranges, Scale[] scales, DataStore dataStore)
      This implementation does nothing.
      Specified by:
      extendCoordinateRanges in interface PlotLayer
      Parameters:
      ranges - array of data space dimension ranges, may be adjusted
      scales - array of axis scalings corresponding to ranges array
      dataStore - data storage object

    • getDataSpec

      public DataSpec getDataSpec()
      Description copied from interface: PlotLayer
      Returns the data spec that defines the data used by this layer. May be null if no tabular data is required.
      Specified by:
      getDataSpec in interface PlotLayer
      Returns:
      data spec, or null

    • getStyle

      public Style getStyle()
      Description copied from interface: PlotLayer
      Returns the plot style used by this layer.
      Specified by:
      getStyle in interface PlotLayer
      Returns:
      plot style

    • getOpt

      public LayerOpt getOpt()
      Description copied from interface: PlotLayer
      Returns an object that describes some facts about how this layer draws itself used for rendering.
      Specified by:
      getOpt in interface PlotLayer
      Returns:
      layer option flags

    • getAuxRangers

      public Map<AuxScale, AuxReader> getAuxRangers()
      This implementation returns a new empty map. Subclasses overriding this implementation may call the superclass method, modify the resulting map, and pass it on.
      Specified by:
      getAuxRangers in interface PlotLayer
      Returns:
      range scales required for plot

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