Would like to represent Missing Values (of Vector Plot) as crosshatch or other pattern on graphics plot

From: <McCormick.JohnW_at_nyahnyahspammersnyahnyah>
Date: Mon Jan 25 2010 - 17:01:49 MST
I have attached a program that displays a vector plot for ocean currents (around the Northern Gulf off the coast of Louisiana).   The files that I'm using contain substantial number of "Missing Values" and I would like to represent them as a different pattern and color (ie., crosshatch lines with, say, black color lines).  I can do this with the color contour plots but cannot seem to find a way to do the same with vector plotting.  Can you give me some hints or ideas as to how or what to code (in my ncl program) in order to represent these Missing Values as I have described?? I would appreciate any feedback or ideas very much.   Thanks,
 
John McCormick

John W. McCormick, Systems Programmer / DBA
High Performance Computing & Scientific Visualization
Lockheed Martin Information Technology, Supporting the EPA
Research Triangle Park, NC
919-541-0890

Federal Infrastructure Contact - Ravi Nair
919-541-5467    -  nair.ravi@epa.gov
Federal Infrastructure Contact - Joe Retzer, Ph.D.
919-541-4190    -  retzer.joseph@epa.gov

############################################
###                       Work Information                                  ###
############################################
John W. McCormick, Systems Programmer,   MD: N127-01
Lockheed Martin, Contractor to US-EPA
US-EPA, Bldg NCC, Rm N135B
Durham, NC 27711
Office:  919-541-0890
Fax   :  919-541-0056
Work Email:  mccormick.johnw@epa.gov

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Received on Mon Jan 25 17:02:00 2010

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