ElVis Tutorial

1
ElVis Tutorial

• Eliot Feibush
• http//w3.pppl.gov/elvis

2
ElVis

• Display and interaction Scientific Data.
• Applications send data to ElVis for display.
• Enhanced graphics with minor changes to existing
  programs.
• ElVis interfaces
• Subroutine programming (API data in)
• Graphical, interactive (GUI)
• Vector PostScript output.

3
Example Plots
4
Fusion Grid Monitor - TRANSP Inputs
5
Data Monitoring - TRANSP Output
6
NSTX TF Monitor
7
Send Data to ElVis
Petrel002
Petrel002
RPLOT
App 2
App 3
ElVis library
...
Inter-Process Communication
myWindowsPC
Data Socket
ElVis Server/Host machine
ElVis
8
Socket Connection

• Socket data stream between 2 programs
• Can be on different computers.
• ElVis Title Bar has port number hostname
• ElVis hostname red-tst
• ElVis Port Number 7654 (OS resource)

red-tst.pppl.gov
9
1. Run ElVis on Windows

• Browse to w3.pppl.gov/elvis
• Click on Run ElVis
• Runs ElVis program on PC.

red-tst.pppl.gov
10
Run ElVis on Linux

• Browse to w3.pppl.gov/elvis/download
• Download elviscdf.jar
• java jar elviscdf.jar

red-tst.pppl.gov
Future Java Web Start -- click on link
11
2. Run RPLOT to ElVis

• xterm
• Set 2 environment variables for RPLOT
• ELVIS_SERVER lthostnamegt
• ELVIS_PORT ltport numbergt
• 7654 is default
• petrel002.pppl.govgt /usr/ntcc/bin/rplot

RPLOT detected ELVIS_SERVER red-tst.
12
(No Transcript)
13
Vector PostScript Output

• ElVis menubar File ? Print
• Current GraphWindow highlighted titlebar
• WindowName.ps file to starting directory
• PostScript Viewer
• gv landscape scalebase 2 file.ps
• scalebase 2 matches PostScript coordinates

14
Printing

• lpr Pprinter
• lpr Pb143-t7300dn

15
ElVis Features

• Zoom Scroll
• Current view is printed
• Data Readout
• Whiteboard
• Label Editor
• Tile GraphWindows
• Help

16
SCOPE Display

• Read scope layout file, df.scope
• Retrieve data from MDS via Servlet
• Security Option Check users credential

17
f(x,i)

• 2-D data
• Indexed in time or other parameter
• Animate 1 or more graphs simultaneously
• Surface plot
• Contour plot

18
Browse for netCDF File

• Plot 1-D and 2-D variables

19
FWR
20
Collaboration
App 2
RPLOT
App 3
ElVis
ElVis 2
ElVis 3
Demonstrated at APS
21
Summary

• 1. w3.pppl.gov/elvis Run ElVis
• 2. Set environment variable(s) for RPLOT
• ELVIS_SERVER lthostnamegt
• ELVIS_PORT ltport numbergt
• 7654 is default
• Run RPLOT
• ElVis File?Print
• http//w3.pppl.gov/elvis