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Hi Sohyoung, > Now I am able to retrieve coordinate information by mouse point click. I > would like to know whether there are examples which is implementing > retrieving metadata relevant to the clicked data point. You need to transform the graphics coordinates into data coordinates, and then look up data values or associated metadata values in data objects. See the questions at: http://www.unidata.ucar.edu/staff/russ/visad/msg01416.html and the answers in: http://www.unidata.ucar.edu/staff/russ/visad/msg01439.html and the second half of: http://www.unidata.ucar.edu/staff/russ/visad/msg00862.html 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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