Introduction to ligo_viewer

Vladimir Dergachev

(University of Michigan)

DCC: G040420-00-Z

DetChar camp, Hanford 20-22 August 2004

LIGO viewer

Capabilities of latest version

Displays trend data from any available channels on multiple graphs

Linux/Unix and Windows versions available

Works from any computer that can access NDS proxies

Linux/Unix version is able to use SSH to tunnel to any computer with tclsh that has access to NDS proxy

Can retrieve data and save it locally in CSV format

Can produce Postscript plots

Can save plot settings for future reference

Installation

LIGOtools binaries available from http://www.ldas-sw.ligo.caltech.edu/ligotools/

Source and Windows versions do not require LIGOtools. Available at http://volodya-project.sourceforge.net/ligo_viewer.php

README file describes how to setup SSH tunnel

Linux/Unix source version can be run right after compilation by typing ./ligo_viewer.no_install

To install Windows version simply unpack the tarball in any directory

Source installation

Make sure a version of Tcl/Tk is installed – should be standard with most distributions

Download source tarball (e.g. ligo_viewer-0.5.0b.tar.gz) to your Linux/Unix workstation.

Unpack: tar zxvf ligo_viewer-0.5.0b.tar.gz

Enter directory: cd ligo_viewer-0.5.0/

Run configure: ./configure

Run make: make

Test compilation: ./ligo_viewer.no_install

(Optional) install as root: sudo make install

Main window

Choose NDS proxy to select between LHO and LLO

Click connect to access proxy

General control

Diagnostics

Progress indicator – blue means busy

Channel viewer window

Type filter to select subset of all channels

Enter time

Click to save data

Click to add plot

Data viewer window

Press and drag to zoom

Right-click for menu

Use buttons to arrange multiple plots

PowerFlux Search Update

2004-08-21T17:11:23