# @(#)ident.hlp	17.1.1.1  (ESO)  01/25/02  17:29:45
#+++++++++++++++++++++++++++++++++++++++++++++++++++++++
#.COPYRIGHT   (C) 1993 European Southern Observatory
#.IDENT       long.hlp
#.AUTHORS     Pascal Ballester (ESO/Garching)
#             Cristian Levin   (ESO/La Silla)
#.KEYWORDS    Spectroscopy, Long-Slit
#.PURPOSE
#             This is the help file for the extended help
#             feature of XLong.
#
#.VERSION     1.0  Package Creation  17-MAR-1993
#-------------------------------------------------------
#

~HELP_WINDOW
  This application allows you to do the line identification process in an
interactive way. 
  After pressing one of the push buttons, the starting line (see help of 
"Ident..." button) is plotted preserving the original cuts of the image.
Using "Begin" you start the identification process erasing any previous
identification; Using "Continue" you can add identifications. "Delete"
allows you to remove identifications.
  You can also manipulate the spectrum (cut it, unzoom it, shift it) using
the "Frame" pulldown menu. In order to do that, you have to press a
push button, then exit with the middle mouse button, do the desired
"Frame" action and finally go back to the push button.

~IDENT_BEGIN
Start line identification. The starting line (see help of "Ident..." button)
is plotted preserving the original cuts of the image. The lines found 
by the search procedure are marked. The graphics cursor must be used.  
Click at the position of the line to be identified. The wavelength may 
is assigned by clicking in the LONG window at the appropriate position.  
Repeat for as many lines as needed. Exit with the middle mouse button.

~IDENT_CONTINUE
Add more identifications.  Notice the "begin" erases all previous
identifications.

~IDENT_DELETE
Delete existent identifications. You have to click over the identified line.