Re: user defined color table

• To: visad-list@xxxxxxxxxxxxx
• Subject: Re: user defined color table
• From: "William L. Hibbard" <WHIBBARD@xxxxxxxxxxxxx>
• Date: Tue, 23 Jun 1998 10:44 CST

> Will there be the possibility to use LabeledRGBWidget with an
> predefined color table?
> The constructor ignores the existing colortable associated with
> the ScalarMap.
 
This is a good point.  I have added constructors for LabeledRGBWidget
and LabeledRGBAWidget that include a float[][] table, as follows:
 
  /** this will be labeled with the name of map's RealType;
      the range of RealType values (min, max) is mapped to color
      as defined by an interactive color widget; table initializes
      the color lookup table, organized as float[TABLE_SIZE][3]
      with values between 0.0f and 1.0f;
      the DisplayRealType of map must be Display.RGB and must
      already be added to a Display */
  public LabeledRGBWidget(ScalarMap map, float min, float max,
                          float[][] table)
         throws VisADException, RemoteException;
 
  /** this will be labeled with the name of map's RealType;
      the range of RealType values (min, max) is mapped to color
      as defined by an interactive color widget; table initializes
      the color lookup table, organized as float[TABLE_SIZE][4]
      with values between 0.0f and 1.0f;
      the DisplayRealType of map must be Display.RGBA and must
      already be added to a Display */
  public LabeledRGBAWidget(ScalarMap map, float min, float max,
                           float[][] table)
         throws VisADException, RemoteException;
 
----------------------------------------------------------
Bill Hibbard, SSEC, 1225 W. Dayton St., Madison, WI  53706
whibbard@xxxxxxxxxxxxx  608-263-4427  fax: 608-263-6738
http://www.ssec.wisc.edu/~billh/vis.html
 
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