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 Dirk, > I just started using VisAd and have gone through the 2D examples by > Ugo Taddei. Well as much as I could considering... The issue is > that any time I am using more than one ScalarMap for a data set I get > a bus error (read potential memory leak). Now I can create more than > one Map for a dataset but cannot .addMap() it <shrug>. For example > in the contour example: > > tempIsoMap = new ScalarMap( data, Display.IsoContour ); > tempRGBMap = new ScalarMap( data, Display.RGB ); > > this works fine for: > > display.addMap( latMap ); > display.addMap( lonMap ); > > display.addMap( tempRGBMap ); > > so I get a shaded map of my data that is good but I'd like contours > instead. If I use: > > display.addMap( latMap ); > display.addMap( lonMap ); > > display.addMap( tempIsoMap ); > display.addMap( tempRGBMap ); > > <plus all the iso-contour bits as well> > > I get a "Bus error" which usually means a memory fault. I even tried > recompiling the classes but the same error occurs. > > Does anyone have any suggestions, I am using MacOS X 10.0.4 and > Java 3.1 DP2 by the way. > > My main desire to use multiple maps with shading is so that I can > use the .setRange() for topo data, blue hues for elevation below sea > level and green hues above. I could use an index map (a la GMT) > instead I guess, but I have not learned enough of the VisAd to work > that out yet. Bus errors have to be bugs in the Mac OS X implementation of Java. The worst you should be able to get from a bug in Java code is an Exception or Error. If you have access to a Solaris, Linux or (shudder) Windows machine, try that. In the meantime, you might want to let Apple know about the bug you found in their Java implementation. 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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