Re: "resetting" of axes, colorscales when data changes

  • To: Donna L Gresh <gresh@xxxxxxxxxx>
  • Subject: Re: "resetting" of axes, colorscales when data changes
  • From: Bill Hibbard <billh@xxxxxxxxxxxxx>
  • Date: Wed, 18 Dec 2002 15:30:52 -0600 (CST)
Hi Donna,

You can invoke DisplayImpl.reAutoScale() before each time
you invoke DataReference.setData(), or you can just invoke
DisplayImpl.setAlwaysAutoScale(true) once. Note you can
prevent your DisplayImpl from auto-scaling a particular
ScalarMap by invoking its setRange() method.


On Wed, 18 Dec 2002, Donna L Gresh wrote:

> Well since I've gotten such quick and useful help for my previous two
> questions, I thought I'd try your patience once more and see if there's an
> easy solution to my current problem. I have data which is changing, on
> input from a user (in simple terms, I'm extracting subsets from a database
> and using the data to create surfaces in three-dimensions for display).
> I've set things up so that I just change the DataReference object and, just
> as advertised, the Display automatically updates which is great. However,
> there are other aspects of the display that don't automatically update when
> this happens, specifically the limits on the axes and the color mapping
> (i.e. if the values being mapped to color are much bigger for the second
> subset, everything ends up red). Is there a simple way to reset these two
> characteristics so that they are "rescaled" to the new data, without going
> in and setting everything by hand programatically?
> Thanks
> Donna
> Donna L. Gresh, Ph.D.
> IBM T.J. Watson Research Center
> (914) 945-2472
> gresh@xxxxxxxxxx

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