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 Randall, > Here are a couple additional methods for the FieldImpl class. They > accomplish the same result as a call to "extract" followed by a call to > "getValues". However, by eliminating the creation of a new Field (like > "extract" does), they run significantly faster. I implemented them as a new > class that extends FieldImpl, but if you like them, you could add them into > FieldImpl itself. These are based on the VisAD version with a doc/DATE of > Thu Nov 1 09:21:01 CST 2001. (Is that the right way to identify a VisAD > version?) This is what we call a utility method: it encapsulates some logic using VisAD's existing methods. Because VisAD is so large and complex, we are resisting the addition of utility methods to the system. There are an increasing number of other software packages that use VisAD and add all sorts of utility methods and other extensions, and we are happy to create links to these from the VisAD web page. We will be happy to link if you want to make a VisAD-based package available. By the way, in addition to resisting the addition of utility methods, I am strongly resisting system changes that will break existing applications. This is not always easy, since there are certainly ways that the system could be better. We are trying to focus new development in packages that add new functionality or performance to the system. Examples include the cluster visualization work, support for Python, the visad.bio package for biological data and tasks, and interfaces of the VisAD data model to new file and server formats. The graph layout algorithms discussed recently on this list are another good example. 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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