              US Environmental Protection Agency
                   Office of Mobile Sources
              NONROAD Emissions Inventory Model

NR-NOTE5.TXT  December 14, 1999

Updated Graphic User Interface (GUI)

This is one item in a series of notes being issued concerning the
DRAFT EPA NONROAD model, which was released on June 18, 1998, and
distributed at the workshop in Chicago on June 25.
Updated/corrected versions of some of the model files were posted
in July and October of 1998, and April 1999.  Various technical
reports documenting the model inputs were also distributed via
the web site at various times since June 1998.  

This note announces the release of an updated/debugged version of
the Graphic User Interface (NR-GUI.EXE).  This version corrects a
few bugs that were in the prior version of the GUI and provides
minor enhancements to the operation.  Since this has no effect on
the core model (nonroad.exe) or the input data files, it should
not result in any difference in outputs from the model.  


INSTALLATION OF NEW GUI

Simply save the new nr-gui.exe file into your main NONROAD model
directory, e.g., c:\nonroad, overwriting the old version of
nr-gui.exe.  


ENHANCEMENTS AND BUG FIXES

The major fix involves the GUI's generation of the .OPT file
entry for the equipment population data filename.  The prior
version of the GUI would cut off the first couple of characters
of the file path\name by placing it in the wrong columns of the
OPT file.  Sometimes this would not cause a problem, such as if
just the "c:" part of the name were cut off and the default path
was the c:\nonroad directory.  But if this was done multiple
times to the same OPT file, the model would not run properly,
since it would be unable to find the POP file. 

Under the Advanced Options menu, there is a new item for Optional
Output to generate EPS or NET outputs.  Please note that the NET
output option is currently disabled, since we are still resolving
what that output will actually look like.  However, the EPS
output is functional.  Prior to this version of the GUI,
generating EPS output required manually editing the .OPT file to
indicate the desired EPS output filename.  Now the EPS option is
accessible directly from the GUI. 

Various other minor enhancements and bug fixes include changes to
the operation the Advanced Options input screens and to the
operation of the CANCEL button on various input screens. 


KNOWN PROBLEMS

The only minor problem we are aware of with the GUI concerns
operating it while also running Groupwise version 4.1 under
Windows-98.  In this particular situation the GUI still works,
but after completing a NONROAD model run from the GUI and closing
the DOS window, the GUI does not fully recognize that the model
run is complete, and thus the output file details are not
displayed and the "View Message File" button does not appear.
However, you can still run the Reporting Utility at that point
and import the .OUT file as usual.  If you wish to view the
Message file or see the date and size of the message and output
files, you can simply close and re-open the GUI, and re-open the
desired OPT file.  The file details and "View Message File"
button will then appear.  If you notice any similar problem and
you are not using Groupwise 4.1 email software, we would
appreciate hearing from you about the problem. 


Thank you,
NONROAD Engine Emission Modeling Team
Assessment and Modeling Division, US EPA

Email:  nonroad@epa.gov
Fax:    734-214-4939
Web:    www.epa.gov/oms/nonrdmdl.htm
US mail:  US EPA Assessment and Modeling Division
          2000 Traverwood Drive
          Ann Arbor MI 48105
