Extended IDL Help

view1d_overlay.pro

At APS this program is installed in the /usr/local/epics/extensions/idllib directory for EPICS R3.14. This program allows the user to overlay few different 1D scan data on the same plot. This program normally is automatically invoked by the script command viewer.

List of Routines


Routine Descriptions

VIEW1D_OVERLAY

[List of Routines]
 NAME:
       VIEW1D_OVERLAY	

 PURPOSE:

       This program is specially written for the data catcher. It
       allows the data catcher user overlay few 1D scans on the same 
       plot for a selected detector.

 CATEGORY:
	Widgets. 

 CALLING SEQUENCE:
	VIEW1D_OVERLAY [,'filename'] [,/XDR] [,GROUP=Group] 

 INPUTS:
	None

 KEYWORD PARAMETERS:
     filename: Specifies the 1D file name to be used for displaying 
               captured 1D scan data. If not specified, the default 
               data file name 'catch1d.trashcan' is assumed.
     XDR:      Required it the input data file is in XDR platform-
               independent binary form.
     GROUP:    The widget ID of the group leader of the widget.  If this 
               keyword is specified, the death of the group leader results in
               the death of VIEW1D.

 OUTPUTS:
       It uses the general purpose 1D plot plackage to overlay plot the 
       selected scans. The window is resizable by the X window manager.

 COMMON BLOCKS:
       COMMON  MULTI_BLOCK, multi_ids

 SIDE EFFECTS:
       It can be invoked by the script catcher_V1D as a stand along 
       program.

 RESTRICTIONS:
       Only native binary data is allowed.

 PROCEDURE:
       The path to this program must be included in the IDL search
       path.

 EXAMPLE:
       Use default setting for view1d_overlay 

       	VIEW1D_OVERLAY

       Override the default setting by specifying the data file
       on the command line

       	VIEW1D_OVERLAY, 'test.dat.xdr', /XDR

 MODIFICATION HISTORY:
       Written by:     Ben-chin K. Cha, 05-27-97.

       07-25-97  bkc   Rename the catcher_view1d to view1d_overlay.
                       Add the support for XDR data format.
       12-19-97  bkc   Automatic figure out input data format
       01-15-98  bkc   Add the support of range of scans eg n1:n2 or n1-n2
       03-24-98  bkc   Allows the startup of view1d_overlay even if the index
                       file is not found

(See view1d_overlay.pro)