trxpl:  a tool to read TRANSP data and 
                   write GEQDSK equilibrium files and
                            GS2 namelist files.

                          written by Doug McCune
                  (notes by Greg Hammett, April 10, 2001.)


SUMMARY
*******

trxpl fetches TRANSP data from a file or from an MDS+ server, and puts the
equilibrium information into the XPLASMA structure.  It can then write a
GEQDSK format file of the equlibrium (i.e., the same format generated by
EFIT).  It can also read temperature and density profiles needed to
generate a GS2 namelist file.  It has options for amalgamation of various
species and for smoothing.  It can start with a GS2 template file, and
update it with the proper parameters for this shot.



Setup
*****

/usr/ntcc/bin/trxpl

setenv RPLOT_CACHE TRUE    # to save cache files in home directory
setenv RPLOT_CACHE /tmp/$USER/rplot_cache   # to save on a scratch disk

setenv TERMINAL_TYPE XTERM

setenv PLOT  filename  # to send plots to file instead of screen

setenv GETLINE_EDITOR TRUE  # enable fortran/uread command line recall/editing.

setenv LD_LIBRARY_PATH /usr/local/mdsplus/lib

# or on the petrel* computers (where Lahey Fortran 95 is used instead of
# one of the other fortran compilers available on Intel Linux systems):

setenv LD_LIBRARY_PATH /usr/local/lff95/lib:/usr/local/mdsplus/lib


Example run
***********

trxpl
f
m    (mds option)
s birch.pppl.gov    (mds server)

d d jet.00 51976c11    (or:)

d d nstx.00 103875x01   

a    (accept)

time of interest:  6.5

+-dt avg:  0.1                   (triangular weighted smooth from 6.4-6.6)

, , ,          (default grids)

CCW B_T ?  (1 or 0)   (Counter-clockwise viewing down from top)

CCW I_p ?  (1 or 0)   (Counter-clockwise viewing down from top)

verify?: y

g , , ,            (write GEQDSK file)


m      (read species desnities and tmperature)

various plotting, aggregating, and smoothing options. smoothing option b.

eventually do: "w"  (write gs2 namelists)



The geqxpl program can be used to plot information in the geqdsk file.


More Help
*********

http://w3.pppl.gov/ntcc, click on modules library, and then uread, etc.