Package uk.ac.starlink.ttools.plot2.layer

Class UnplannedDrawing

java.lang.Object
uk.ac.starlink.ttools.plot2.layer.UnplannedDrawing
All Implemented Interfaces:
Drawing
public abstract class UnplannedDrawing extends Object implements Drawing
Convenience partial implementation of Drawing where no plan is used. Concrete impleentations have to provide an implementation of the plan-less paintData(Paper,DataStore) method.
Since:
15 Feb 2013
Author:
Mark Taylor

  • Constructor Details

    • UnplannedDrawing

      public UnplannedDrawing()

  • Method Details

    • calculatePlan

      public Object calculatePlan(Object[] knownPlans, DataStore dataStore)
      Returns null.
      Specified by:
      calculatePlan in interface Drawing
      Parameters:
      knownPlans - list of zero or more plans that may have been previously calculated by this class
      dataStore - data-bearing object
      Returns:
      plan to present to the paintData method

    • paintData

      public void paintData(Object plan, Paper paper, DataStore dataStore)
      Calls paintData(Paper,DataStore).
      Specified by:
      paintData in interface Drawing
      Parameters:
      plan - drawing plan, from calculatePlan
      paper - graphics destination
      dataStore - data-bearing object

    • getReport

      public ReportMap getReport(Object plan)
      Description copied from interface: Drawing
      Obtains information associated with the plot. The plan argument must be the result of an earlier call to this object's Drawing.calculatePlan(java.lang.Object[], uk.ac.starlink.ttools.plot2.data.DataStore) method. The hasReports method of the corresponding Plotter indicates whether the return value may contain general-interest reports; special-purpose reports may be returned in any case.

      If there is nothing interesting to report, which will often be the case, the return value may be null, which is shorthand for an empty map.

      This ought not to be an expensive operation.

      Specified by:
      getReport in interface Drawing
      Parameters:
      plan - drawing plan, from calculatePlan
      Returns:
      information generated by the plot, or null
      See Also:

    • paintData

      protected abstract void paintData(Paper paper, DataStore dataStore)
      Performs the drawing. Invoked by paintData(Object,Paper,DataStore).
      Parameters:
      paper - graphics destination
      dataStore - data-bearing object