Hi Leah,
> I tried that earlier and ran into a problem. I am constantly
> changing the data displayed by my application. When I change
> the data I removeAllReferences() from my display, reset the
> data and re-add the references. If I add a constant map in
> addReference(), the second time I add the reference I get
> an exception saying that I can't add the same constant map
> twice. But, if I don't add a constant map, the data is
> displayed as though a constant map isn't there at all.
>
> I looked through the visad/example code. The closest
> example creates a new display and then adds all the scalar
> and constant maps. I'd prefer not to create a new display
> everytime I change the data.
>
> How can I get around this?
No, its much simpler. Instead of removeAllReferences(),
just call removeRefernce() for the one DataReference,
then construct a new ConstantMap (i.e., don't reuse the
old one, but construct a new identical one) and pass it
to the addReference().
Good luck,
Bill
