ElVis Features

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ElVis Features Animations

• Michael Shmulevich
• PPPL Summer High School Intern
• Mentor Eliot Feibush
• August 14, 2008

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Scientific Graphics
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Data Monitoring Integrated with Job Monitoring
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Web Services
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ElVis Software Package

• Display program
• 45,000 lines of Java code
• 300 classes
• Summer 08 Over 200 updates to the code
• Application Programming Interface (API)
• Fortran
• C/C
• Java

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Animation For Simulations

• Fusion simulations produce visualizations that
  occur one step at a time. Provides a way for all
  these simulations to be able to put their
  sequence of images together into a movie file.
• Applicable to other fields.

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Jpeg Images to Movie Conversion

• Converts a sequence of JPEG images to a QuickTime
  Movie file using JMF.
• Provides users the ability to specify an input
  directory containing JPEG images, an output
  directory for the .mov file, and a frame rate for
  the video.
• Modified Suns pre-existing code to handle
  directories, automatically detect width and
  height of the images, default to certain values
  if the user does not specify them, and a help
  screen.

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Jpeg Images to Movie Conversion

• Advantages portable light weight program for
  creating movies out of images, image quality is
  comparable or better than Microsoft Windows Movie
  Maker.
• Eliminates copying images to a Windows machine
  from the simulation cluster.
• GTC, GYRO, SWIM, CPES

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Jpeg Images to Movie Conversion

• Movies generated using ElVis plots can be found
  here w3.pppl.gov/elvis/movies
• Launch Plasma Movie (frame rate of 50)
• Made from 2,000 image files from the Plasma Edge
  fusion simulation project.
• Command line interface to be able to use through
  scripts

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3D Indexed Color Maps

• ElVis was set up to plot these types of graphs
  without checking for width, height, and negative
  scaling values.
• Set up default conditions and checks for negative
  numbers.
• Launch PsiRZ Movie

PsiRZ.cdf
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Setting Decimal Precision

• Upon NSTX user request, provides the ability to
  control the amount of significant figures in a
  label.
• Reduce clutter of too many decimal points.
  (Default is now 3)
• Sets the amount of places after the decimal
  point.
• Makes use of Javas NumberFormat Class.
• Launch Decimal Precision Demo

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Animate By Crosshair

• Crosshair is a way to interactively explore the
  data.
• Upon NSTX user request, provide option to turn
  off animate by crosshair.
• TRANSP Data Prep Web Service
• Launch Animate By Crosshair Demo
• Launch Crosshair Without Animation Demo

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Marker Count

• Designed a GUI (Graphical User Interface) to
  allow the user to show points and set a marker
  count.
• Necessary when a graph has a large amount of
  points preventing the user to distinguish between
  points.
• Motivated by Ben Bariteaus API.
• Eric Zatz integrated marker counting with EML
  (ElVis Markup Language) .
• In effect, a three part project.

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Marker Count
Show Points On Marker Skip Count 70
Show Points Off Original Graph
Show Points On Marker Skip Count 0
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Templates

• Each template has a presentation style attribute.
• Templates in ElVis are saved in XML format.
• Completed the functionality of presentation
  styles.

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Saving Legend Attributes

• Legend attributes specified in GraphEditor are
  saved to the template file.
• These include attributes for the legend, the
  outline, expanding the graph to its full width,
  and filling the legend.

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Presentation Styles

• ElVis would replot graphs without remembering the
  graphs presentation style.
• (would always revert to Animated)
• Fix Save the current presentation style to a
  variable, and apply it once the graph is
  replotted.

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Presentation Styles Demo

• Launch Presentation Styles Demo

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Exponent Labels

• When a graph is resized to a small size, and it
  contains exponents as tick mark labels, the
  values get jumbled.

Before
After
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Exponent Labels

• Approach Exp label begins at
  pixel

Exp
Label
0
Y
X
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Themes

• Themes are saved to a preferences file.
• settings.props saved in your ElVis directory.
  (located inside your home directory)
• Automatically loads the last theme used when
  ElVis starts.

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Clearing

• Clear Row, Clear Column, Clear Cell, and Clear
  All features created.
• Graph Panel Vector contains plot data.
• Based on the Row/Column coordinate of a selected
  graph I can determine which element of the vector
  to clear.
• Invoked use of the getBorderSelected function to
  determine coordinates of the selected graph.

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Clearing Demo

• Launch Clearing Demo

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Deleting

• Delete Row and Delete Column functions have been
  implemented.
• Same algorithm as with clearing however,
  deleting requires removing panels from the
  GraphPanel vector.
• Problem Encountered I was unaware that when
  removing a panel from the GraphPanel vector, it
  is necessary to validate the container
  afterwards.

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Deleting Demo

• Launch Deleting Demo

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The ElVis Tutorials

• In order for users to gain an understanding of
  how to use the features of ElVis, it is essential
  to have tutorials.
• Created using free open source screen audio
  recording software called CamStudio (for
  Windows).
• http//camstudio.org/
• Deleting Tutorial

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What Ive Learned

• Prior knowledge C Action and Object Oriented
  Programming, HTML
• ElVis is coded in Java.
• This internship familiarized me with Java SDK and
  the Eclipse IDE. (Swing Graphics2D)
• Team Development Environment

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What Ive Learned

• Different operating system file systems are
  structured in different ways.
• Different OSs have different looks and feels in
  Java.
• Necessary to make code OS friendly.
• Ive furthered my knowledge and understanding of
  Linux and Mac OS X.

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Acknowledgements

• Eliot Feibush Mentor
• PPPL Science Education Program
• Andrew Zwicker, Christine Ritter, James Morgan
• Princeton Plasma Physics Lab
• ElVis Army (Eric Zatz, Matt Milano, Ben Bariteau)

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Questions?
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Eric Zatz -CPPG summer undergrad
ElVis Mark-Up Language
Eliot - Mentor
Ben API, EML
Matt System Services
Doug Mentor CPPG Group Head
Mike Movie Making
User Enhancements Tutorials