Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
Hi Ken, > I would like to use VisAD to build a general-purpose data > definition/creation/visualization system. The user would be able to define > new MathTypes at runtime (not a problem), list all previously defined > MathTypes, destroy MathTypes that are no longer useful, and save MathTypes > between runs (shouldn't be a problem because MathType and its subtypes > implement java.io.Serializable). I am having trouble figuring out how to > list all previously defined MathTypes and how to destroy MathTypes. Can > you give me some pointers? VisAD itself does not maintain a list of all MathTypes, so your system would have to maintain its own list. The ScalarType class does keep a HashTable of all ScalarTypes constructed on this JVM, but it is not exhaustive since ScalarTypes can come in from other JVMs via RMI. You should be able to destroy MathTypes, except ScalarTypes, by deleting all references to them and letting them get garbage collected. Good luck, 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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