Class AngScale2

java.lang.Object
skyview.data.AngScale
uk.ac.starlink.ttools.plot2.geom.AngScale2

public class AngScale2 extends skyview.data.AngScale
Find an appropriate delta to use for getting grid intervals.

This subclasses the SkyView AngScale class in order to modify its behaviour slightly. The original implementation is copied from the original skyview source.

The changes consist of addding some larger values to the *Bigs[] arrays, so that lower crowding values actually yield more sparse grids. That includes values that correspond to no grid lines at all (180/360 degrees for lat/lon).

Author:
Tom McGlynn, Mark Taylor
  • Constructor Summary

    Constructors
    Constructor
    Description
     
  • Method Summary

    Modifier and Type
    Method
    Description
    double
    scale(double delta)
    Get an appropriate scaling for this coordinate.
    double[]
    scaling(double min, double max)
    Get the desired starting values and scaling interval.
    void
    setSexagesimal(boolean flag)
    Do we want sexagesimal coordinates?
    void
    setTime(boolean flag)
    Do we want coordinates in time?

    Methods inherited from class skyview.data.AngScale

    main

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
  • Constructor Details

    • AngScale2

      public AngScale2()
  • Method Details

    • scale

      public double scale(double delta)
      Get an appropriate scaling for this coordinate.
      Overrides:
      scale in class skyview.data.AngScale
      Parameters:
      delta - The range of the coordinate.
    • scaling

      public double[] scaling(double min, double max)
      Get the desired starting values and scaling interval.
      Overrides:
      scaling in class skyview.data.AngScale
      Parameters:
      min - The minimum coordinate value.
      max - The maximum coordinate value
      Returns:
      a two element vector giving the starting value and delta to be used. .
    • setSexagesimal

      public void setSexagesimal(boolean flag)
      Do we want sexagesimal coordinates?
      Overrides:
      setSexagesimal in class skyview.data.AngScale
    • setTime

      public void setTime(boolean flag)
      Do we want coordinates in time?
      Overrides:
      setTime in class skyview.data.AngScale