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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
Hi Mike, I'm pretty sure that the cause of your problem is the lack of a call to addMap. You can fix it by inserting a call to addMap as follows: Scalarmap scm = new Scalarmap(x, Display.SelectValue); display.addMap(scm); VisADSlider vslider = new VisADSlider(scm, 0.0f, 1.0f); I have added a check for this inside of VisADSlider to give a better error message. Please let me know if the addMap call does not solve your problem. By the way, you can better error messages by running under jdb, as in: jdb myclass > run myclass When you get an Exception, what we really like to see is a stack trace from jdb that includes line numbers. Cheers, Bill ---------------------------------------------------------- Bill Hibbard, SSEC, 1225 W. Dayton St., Madison, WI 53706 hibbard@xxxxxxxxxxxxxxxxx 608-263-4427 fax: 608-263-6738 http://www.ssec.wisc.edu/~billh/vis.html
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