0-a) An environmental variable GEOMVIEW must be fixed to show the
   path geomview binary (normally it is a script)
   e.g,   (sh, bash, zsh)

   export GEOMVIEW=/usr/local/bin/geomview

   or  (tcsh)
   
   setenv GEOMVIEW /usr/local/bin/geomview

    etc.


0-b) If necessary, change the working directory for genomviw;
       Fix the "vdir" in 'disptracebygeomv' in this directory.
     (/tmp/$USER; default)

----------------------------

1) To show  one spcific trace information (suppose it is /tmp/foo/trace1)
 
  Use
    dispcosTraceByGeomv  /tmp/foo/trace1
  or
    dispcosTraceByGeomv  /tmp/foo/trace1  earth

 These use disptracebygeomv  in this directory.

 (Second one will display the trace with the earth sphere; The north
   pole is indicated by white color and the longitude 0 by blue line and
   the equator by red line).

  This will create ptcl21.vect, ptcl31.vect,.. ptcl61.vect (some may be missing
  if there is no such particle traktcs) in $vdir.  If 2 is given
  instead of 6, only ptcl2.vect will be created.
  (2 is for electrons, 3 muon,...  The max number you can give is 9 which is
   for heavy particles (He, Li, ...). 

  *** If one consecutive track has a large number of nodal points
    (> 32000), it is decomposed into more than two files:
	say, ptcl21.vect ptcl22.vect....  This may happen if
        you want to display charged particle tracks propagating
        at large distances from the earth.

2) If you have many number of trace data, it may be better to use

	./slide  2 5 /tmp/foo/ 
or
	./slideWithEarth  2 5 /tmp/foo/ 

by which you can show  /tmp/foo/trace2 to /tmp/foo/trace5.
The second one is for showing the earth sphere together.
 
****Caution:
   Before invoking Geomview, the current Geomview is killed in
  'disptracebygeomv'. However, this will not be successfull sometimes.

------------
 The 'colormap' in this directory determines the default color of 
  each particle code. Color can be changed within Geomview.

------------
 If you show traces of particles in the atmosphere, electron tracks
 normally have the heaviest load and it may be difficult to manipulate
 the display smoothly. In such a case, you may delete the electron tracks
 once, and adjust the display, then again resume the electron tracks.


++++++++++++++++++++

This directory contains the following files.


Readme             earth.mesh         second.awk         splitiftoolarge*
colortab           equator.vect       slide*
disptracebygeomv*  first.awk          slideWithEarth*
earth              meridian.vect      split.awk

If there are some others, they should be garbage to be deleted.

====================
FMI @ Macbook.

  A) When OS was  updated to catalina, geomview became display became
not usable. This is because geomview was installed via "fink"
in /sw/bin which became user-untouchable region in catalina.
And /sw/ was found to be removed by the system (to
場所が変更された項目　on Desktop; this one was later copied
to portable 1TB SSD) 


  B) Fortunately, there existed  geomviews in other area.
They could work when we invoke them directly but if we use them
via, say, "dispcosTraceByGeomv trace1", we could not any display 
nor any  error messages. The files for display seem to be correctly
created.  Some doubt is "tcsh" since the scripts managing the
business are written using "tcsh" but when we want to change the
current shell (bash) to "tcsh", there appeared '/sw/init.csh is
missing'.  This is persistent even after we re-installed "tcsh"
by using mac"port" or home"brew".
  C) So the scripts were re-written by "bash". At first, there
 appeared still error messages. But finally, when we drop
"-f" in #!/bin/bash -f at the top of the script 
 After that, "dispcosTraceByGeomv" revived. 
 Though, the detailed reson is not unknown.

I found ~/.tcshrc contains ~/.cshrc which contains /sw/bin/init.csh
so I removed /sw/bin/init.csh from ~/.cshrc. But the  situation
doesn't change
-------------
