Hi Andre,
You can fix this by replacing all occurrences of 'new RealType(...)'
by 'getRealType(...)'. The RealType constructors are all deprecated
now, but some old code examples (many written by me, I must confess)
still use 'new RealType(...)' and mislead beginners.
Cheers,
Bill
On Fri, 11 Jul 2003, Andre Skusa wrote:
> Hello VisAD experts,
>
> here is a question you might be able to answer a VisAD novice:
>
> I got quickly VisAD to run in my own Java application. Currently a new
> frame is opened with a DisplayImpl object added. This object contains a
> simple drawing taken from the very first tutorial example. So it's
> basically this example that is started within my program by click on a
> button. What I'm wondering about is if I do this simply twice (open the
> window with the DisplayImpl object (here it works), close it and open it
> again) then I'm getting a null pointer exception and the error message
>
> "ScalarType: name already used"
>
> I guess that although the frame object has been completely renewed by
> closing and opening the window again there is somehow something left in
> the memory that lets the program think that the objects/variables
> created the first time still exist. Is this the case? And how do I fix
> this, i.e. is there a "clear" method or anything like that?
>
> My goal was to have more than one plots in the same window. Maybe there
> is sample code for that somewhere but I couldn't find it. Can you guys
> help me??
>
> Thanks a lot,
>
> Andre
> --
> Dipl.-Inform. Andre Skusa (PhD student)
>
> NRW Graduate School in Bioinformatics and Genome Research
> Center of Biotechnology (CeBiTec)
> University of Bielefeld
> Postfach 10 01 31
> D-33501 Bielefeld
> Germany
>
> home: http://www.cebitec.uni-bielefeld.de/~askusa
>
> email: andre.skusa@xxxxxxxxxxxxxxxxxxxxxxxx
>
>
