VisCMD Visualizing Cloud Modeling Data

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VisCMDVisualizing Cloud Modeling Data
CPSC-533C Information Visualization
Term-project Mid-term Report

• Quanzhen Geng Jing Li
• (Master of Software Systems Program)
• March 17, 2003

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Overview and Background

• Cloud Model
• Resolution 256x256x90 (25m) in
• North-South (6375m),
  West-East(6375m),
• and Altitude (2225m)
  directions.
• Output Data
• -- Data amount for each time-step (1 min)
• 256x256x90 real-numbers/variable
• x4 (bytes/real-Number) x 12variables
  270MB
• -- Time-steps for each simulation
• (5 days)x(24x60min/day)x(1step/min)72
  00 steps
• -- Total Data Amount for each Simulation
• (270MB/step)x7200steps1898GB1.85TB

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What Scientists Want for Data Visualization ?

• Scientists want
• Visualization Software that is
• ready to use, no need to program,
• and specifically designed for their
  purpose.
• What we have
• Current 3D Visualization Libraries
• VTK, Vis5D, VisAD etc.
• need scientists to do a lot of
  programming

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Goals of VisCMD

• To develop a software that can be used
  specifically for visualizing large cloud modeling
  datasets in three dimensions and visualizing the
  cloud properties (multi-variables) in parallel
  coordinates .

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Objectives

• Achieve 3 4 of the following objectives
• (1) General 3D display of the cloud body.
• (2) Parallel coordinates visualization of cloud
• data
• (3) Zoom a mouse-selected region
• (4) Make slices of the cloud and see the inside
• properties (temperature, humidity etc) of
  it
• (5) Display the animation of the cloud
• development  in a time period

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Implementation Approach

• (1) Software Tools     
• VisAD A visualization library written in
• pure Java
• (2) Programming Language
•      Java
• (3) Platform
•      Windows 2000

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Implementation Class Structures
VisCMD
VisCMDGUIManager
VisCMDManager
VisCMDDataReader
VisCMDDisplay
VisCMDController
VisCMDSlice
VisCMDHandle
VisCMDSlicer
VisCMDVolumRender
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Screen shot 01 Graphical User Interface (GUI)
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Screen shot 02 3D-Cloud Display Looking from
above
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Screen shot 03 3D-Cloud Display Looking from
one side
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Screen shot 04 3D-Cloud Display Zoom-out
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Screen shot 05 3D-Cloud Display Zoom-in
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Screen shot 06 3D-Cloud Display Dynamic Slicing
3D-clouds with a slicer and a handle
A sliced piece of clouds
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Screen shot 07 3D-Cloud Property Display Total
Water VaporVolume Rendering and Dynamic Slicing
Total water vapor volume rendering, a slicer and
a handle
A sliced cross-section of total water vapor
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Screen shot 08 3D-Cloud Property Display Total
Water Vapor A slice in 3D-space
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Summary

• We have finished the following things
• Data interface
• read and process model output data
• to feed to VisAD for 3D-rendering
• A simple GUI
• handle user input and control of the
• 3D-rendering
• 3D-display
• volume rendering of Cloud Modeling Data
• Dynamic slicing
• dynamic slicing of the 3D-volume
  rendering

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Future Works

• Refine the present GUI
• --Add FileChooser, VariableSelector,
• DataInfoDisplayer
• Refine the present 3D-display and Slicing
• --Add more user controls and legends
• Finish another objective
• --Parallel Coordinates / or Animation