MVE2 Applied in Education Process

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MVE-2 Applied in Education Process

• Milan Frank
• Libor Váa
• Václav Skala

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Outline

• what is MVE-2
• MVE-2 features
• development of MVE-2 core
• development of MVE-2 visualisation modules
• MVE-2 used in education
• MVE-2 used in research

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What is MVE-2?

• Modular Visualisation Environment
• algorithm decomposition into
• modules
• connections
• maps
• two front ends
• MapEditor
• runmap

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MVE-2 features

• .NET
• Framework (XML, collections, )
• language independence
• generality
• modules/data structures easily added
• any functionality
• simplicity
• experimental purposes
• flexibility
• general execution model

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MVE-2 and XML

• XML suggested data format
• Saved maps
• Map topology (connections)
• Additional information for the GUI
• Custom module settings
• Saved data structures
• XML serialization/deserialization required from
  any data structure
• XML serialization modules are provided by
  Elemetals library

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MVE-2 simplicity

• basic module source code (whole!)
• using System
• using Zcu.Mve.Core
• using Zcu.Mve.Numerics
• namespace Examples
• class SimpleSineModule
• public SimpleSine()
• AddInPort("Argument",
  typeof(Scalar))
• AddOutPort("Value", typeof(Scalar))
• public override void Execute()
• Scalar input (Scalar)GetInput("Argum
  ent")
• Scalar result Math.Sin(input)
• SetOutput("Value", result)

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MVE-2 simplicity2

• private int multiplier
• public int Multiplier
• get return (multiplier)
• set multiplier value

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MVE-2 flexibility

• general maps
• support for cycles
• map sublevels
• advanced execution
• on-demand execution (non-auto update port)
• port events
• connection estabilished
• connection removed
• data ready

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MMDOC

• documentation generator
• uses
• metadata
• documentation comments
• special attributes
• PortInfo, ModuleInfo
• generates
• documentation in variety of formats
• html, chm,
• list of missing comments

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MVE history

• first version (1996)
• static set of data structures
• problems with different languages, compilers
• MVE-2 (2002)
• completely new code
• core is pure .NET
• PhD. work of Milan Frank
• used in the GSVD course 2005, 2006
• used in research at UWB

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Development of MVE-2 core

• Milan Frank team leader, software architect
• a team of MSc. Students
• core implementation (Miroslav Fuksa)
• MapEdit implementation (Zdenek Ceka)
• mmdoc implementation (Petr Dvorák)
• data visualisation module library (Miroslav
  Vavruka)
• early versions used in research
• mesh stripification (Petr Vanecek)

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Visualisation

• Module library by Miroslav Vavruka and Milan
  Frank
• Common visualisation tasks
• Data structures
• Similar to VTK
• Basic elements (points, vectors, matrices, )
• Data sets
• structured/unstructured
• regular/irregular
• Separate geometry (points) and topology (cells)
• Assignable attributes (point attributes, cell
  attributes)
• Modules
• Sources
• Basic renderers (image, curve, )

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Visualisation data structures
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MVE-2 in education

• environment for GSVD courseworks
• system improvements
• automatic GUI using PropertyGrid component
  (Premysl Zítka)
• new modules
• mesh displace (Jirí Skála)
• loaders/savers of various data formats (TRI, STL,
  PLY, CMX, ...)
• will be used in the future

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Benefits from using MVE-2 in education

• enforces good programming habits
• clear problem decomposition
• early architectural decisions
• straightforward code reusability
• students are forced to read and understand
  existing code
• data visualisation pipeline is clearly shown
• familiarizes the students with basic data
  visualisation concepts (Visualisation library
  similar to VTK)
• team work

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MVE-2 in diploma thesis

• task renderer (Jan Kaiser)
• data structures from Visualisation
• additional new data structures
• lights
• objects (geometrymaterial)
• camera
• scene (objectslightscamera)
• problems to solve
• interactivity (backloop, minimisation of updates)
• generality (D3DUT)
• overall architecture decisions

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MVE-2 in research

• used by PhD. students and researchers at UWB
• benefits
• simplicity for experimental purposes (small
  overhead when compared to similar systems such as
  ParaView)
• cooperation
• use of existing modules
• Petr Vanecek
• mesh stripification
• Libor Váa
• dynamic mesh comparison

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MVE-2 in research

• Martin Janda and Ivo Hanák
• digital holography
• hologram renderer module (Martin Janda)
• renders an artifical scene into a hologram
• Hologram reconstruction module (Ivo Hanák)
• renders a scene represented by a hologram as an
  image
• new data structure for hologram (easily added)
• MVE-2 allows straightforward cooperation and
  verification
• negligible performance loss (intensive
  computations)

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Future work

• standard modules developped as courseworks of
  data visualisation subjects
• volume data visualisation
• basic image processing (in collaboration with
  University of South Bohemia)
• environment improvements
• automatic parallelisation of inherently parallel
  maps
• use in research
• holography (continued)
• dynamic mesh decimation

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• Thank you for your attention.
• Questions?
• http//herakles.zcu.cz/research/mve2