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VR Juggler provides a cross-platform virtual reality application development framework

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doc		doc
dpp		dpp
external		external
macros		macros
modules		modules
release		release
scripts		scripts
share		share
vc10		vc10
vc9		vc9
.gitignore		.gitignore
CMakeLists.txt		CMakeLists.txt
COPYING-addendum.txt		COPYING-addendum.txt
COPYING.txt		COPYING.txt
INSTALL.html		INSTALL.html
INSTALL.txt		INSTALL.txt
JugglerConfigure.pm		JugglerConfigure.pm
Makefile.docs		Makefile.docs
Makefile.in		Makefile.in
README-WINDOWS.html		README-WINDOWS.html
README-render-docs.txt		README-render-docs.txt
README.html		README.html
README.txt		README.txt
acclean.sh		acclean.sh
autogen.sh		autogen.sh
build_windows.py		build_windows.py
configure.pl		configure.pl
juggler-logo.gif		juggler-logo.gif
juggler.cfg		juggler.cfg
msvcconv.py		msvcconv.py
version.rc.in		version.rc.in

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<html><head>
      <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
   <title>Juggler Project Overview</title><link rel="stylesheet" type="text/css" href="base_style.css"><meta name="generator" content="DocBook XSL Stylesheets V1.76.0"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div lang="en" class="article" title="Juggler Project Overview"><div class="titlepage"><div><div><h2 class="title"><a name="d0e1"></a>Juggler Project Overview</h2></div><div><div class="authorgroup"><div class="author"><h3 class="author"><span class="othername">The Juggler Team</span></h3></div></div></div><div><p class="pubdate">$Date$</p></div></div><hr></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="section"><a href="#d0e15">Introduction</a></span></dt><dt><span class="section"><a href="#d0e26">Compiling</a></span></dt><dt><span class="section"><a href="#modules-section">Modules</a></span></dt><dd><dl><dt><span class="section"><a href="#d0e42">VR Juggler</a></span></dt><dt><span class="section"><a href="#d0e56">VR Juggler Portable Runtime (VPR)</a></span></dt><dt><span class="section"><a href="#d0e88">Juggler Configuration and Control Library (JCCL)</a></span></dt><dt><span class="section"><a href="#d0e112">Gadgeteer</a></span></dt><dt><span class="section"><a href="#d0e126">Sonix</a></span></dt><dt><span class="section"><a href="#d0e142">Tweek</a></span></dt><dt><span class="section"><a href="#d0e158">VRJConfig</a></span></dt></dl></dd><dt><span class="section"><a href="#d0e170">VR Juggler 2.x</a></span></dt></dl></div><div class="section" title="Introduction"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="d0e15"></a>Introduction</h2></div></div></div><p>Congratulations, you have downloaded the source code to the Juggler
    Project, open source software for virtual reality from the <a class="ulink" href="http://www.vrac.iastate.edu/" target="_top">Virtual Reality Applications
    Center</a> at <a class="ulink" href="http://www.iastate.edu/" target="_top">Iowa State
    University</a>. Within this document, you will find information about
    the new VR Juggler 2.x directory structure including descriptions of all
    the component modules that make up the Juggler Project. Instructions for
    building the individual modules can be found within the specific module
    directories and on the VR Juggler website.</p></div><div class="section" title="Compiling"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="d0e26"></a>Compiling</h2></div></div></div><p>For information on compiling the source code, refer to either the
    <code class="filename">INSTALL.txt</code> or <code class="filename">INSTALL.html</code> file
    found in this directory.</p></div><div class="section" title="Modules"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="modules-section"></a>Modules</h2></div></div></div><p>The Juggler Project is made up of several modules that have evolved
    from the original VR Juggler source tree. Within this section, we describe
    each of the modules, what they are used for, and, when possible, how they
    relate to VR Juggler 1.0.</p><div class="section" title="VR Juggler"><div class="titlepage"><div><div><h3 class="title"><a name="d0e42"></a>VR Juggler</h3></div></div></div><div class="section" title="Directory"><div class="titlepage"><div><div><h4 class="title"><a name="d0e45"></a>Directory</h4></div></div></div><p><code class="filename">juggler/modules/vrjuggler</code></p></div><div class="section" title="Description"><div class="titlepage"><div><div><h4 class="title"><a name="d0e51"></a>Description</h4></div></div></div><p>VR Juggler is still VR Juggler. There are many new features in
        VR Juggler since the 1.0 series, but in essence, it is still the same
        familiar tool. Of the projects listed below, VR Juggler depends on
        VPR, JCCL, Sonix, and Gadgeteer. Its individual components have simply
        been broken out into individually developed modules. More information
        about the latest version of VR Juggler is given in the following
        section.</p></div></div><div class="section" title="VR Juggler Portable Runtime (VPR)"><div class="titlepage"><div><div><h3 class="title"><a name="d0e56"></a>VR Juggler Portable Runtime (VPR)</h3></div></div></div><div class="section" title="Directory"><div class="titlepage"><div><div><h4 class="title"><a name="d0e59"></a>Directory</h4></div></div></div><p><code class="filename">juggler/modules/vapor</code></p></div><div class="section" title="Description"><div class="titlepage"><div><div><h4 class="title"><a name="d0e65"></a>Description</h4></div></div></div><p>VPR is the foundation for all the Juggler modules. It provides
        an object-oriented, cross-platform abstraction layer to common
        operating system features such as threads, semaphores, and sockets.
        All the other modules depend on VPR so that they may be ported easily
        to other platforms. In VR Juggler 1.0, VPR was the collection of
        directories Threads, SharedMem, and Sync. Since then, that code has
        been collected into a single library and greatly extended into what is
        now VPR.</p><p>VPR itself contains a great deal of platform-specific code. It
        categorizes this code into subsystems, and various subsystems may be
        chosen depending upon the target platform and target threading system.
        For example, on IRIX, there are two possible subsystems: POSIX and
        Netscape Portable Runtime (NSPR). For Windows, on the other hand, VPR
        uses native WIndows threading and serial ports with socket I/O based
        on Boost.Asio. The subsystems are:</p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p>POSIX (UNIX-based platforms only)</p></li><li class="listitem"><p>NSPR (all platforms, required on Solaris)</p></li></ul></div><p>Because VPR is the foundation for all the other modules, it is
        important to choose the right subsystem.</p><p>Choosing the correct subsystem depends on many factors. For
        example, which of the subsystems are supported on the desired target
        platform? Are there compatibility issues with software outside the
        Juggler Project? In most cases, however, the choice is
        straightforward. Indeed, IRIX is the only platform that presents any
        real issues. In particular, the use of OpenGL Performer from SGI
        raises important compatibility concerns. POSIX threads will work, but
        applications may sometimes crash on startup. As of this writing,
        OpenGL Performer does not work at all with NSPR. Other software may
        pose similar problems, and it is important to know the needs of other
        tools when configuring VPR.</p><p>As mentioned above, all the other modules depend on VPR, so it
        must be compiled before anything else. For more information on
        compiling VPR, refer to
        <code class="filename">modules/vapor/INSTALL.txt</code>.</p></div></div><div class="section" title="Juggler Configuration and Control Library (JCCL)"><div class="titlepage"><div><div><h3 class="title"><a name="d0e88"></a>Juggler Configuration and Control Library (JCCL)</h3></div></div></div><div class="section" title="Directory"><div class="titlepage"><div><div><h4 class="title"><a name="d0e91"></a>Directory</h4></div></div></div><p><code class="filename">juggler/modules/jackal</code></p></div><div class="section" title="Description"><div class="titlepage"><div><div><h4 class="title"><a name="d0e97"></a>Description</h4></div></div></div><p>JCCL provides the configuration layer for VR Juggler and other
        modules. The config chunks and reusable configuration editor JavaBeans
        come from JCCL. These JavaBeans are used by the VR Juggler
        configuration editor tool, VRJConfig (see below). In essence, JCCL is
        the VR Juggler 1.0 Config directory with many new features including
        XML-based config files.</p><p>To build the JCCL C++ library, CppDOM is required for parsing
        XML. CppDOM is a lightweight XML parser written in C++ and designed to
        provide an interface similar to JDOM. More information can be found at
        <a class="ulink" href="http://xml-cppdom.sourceforge.net/" target="_top">http://xml-cppdom.sourceforge.net/</a>.</p><p>To build the configuration editor JavaBeans, JDOM and the Tweek
        Java API are required. Tweek is another module in the Juggler Project,
        and it will be built automatically as a dependency of JCCL. JDOM comes
        with the Juggler Project source code and can be found in the directory
        <code class="filename">juggler/external/jdom</code>.</p></div></div><div class="section" title="Gadgeteer"><div class="titlepage"><div><div><h3 class="title"><a name="d0e112"></a>Gadgeteer</h3></div></div></div><div class="section" title="Directory"><div class="titlepage"><div><div><h4 class="title"><a name="d0e115"></a>Directory</h4></div></div></div><p><code class="filename">juggler/modules/gadgeteer</code></p></div><div class="section" title="Description"><div class="titlepage"><div><div><h4 class="title"><a name="d0e121"></a>Description</h4></div></div></div><p>Gadgeteer is made up of the code that was formerly in the VR
        Juggler 1.0 Input directory. It contains all the drivers used for VR
        Juggler input devices, and it contains the high-level Input Manager.
        The goal with Gadgeteer is to mold it into the first dynamically
        loadable component within the VR Juggler microkernel. At this time, it
        must still be compiled in, but we hope to generalize the concepts of
        VR Juggler Managers to the point that the kernel knows nothing about
        them until they are loaded at run time.</p></div></div><div class="section" title="Sonix"><div class="titlepage"><div><div><h3 class="title"><a name="d0e126"></a>Sonix</h3></div></div></div><div class="section" title="Directory"><div class="titlepage"><div><div><h4 class="title"><a name="d0e129"></a>Directory</h4></div></div></div><p><code class="filename">juggler/modules/sonix</code></p></div><div class="section" title="Description"><div class="titlepage"><div><div><h4 class="title"><a name="d0e135"></a>Description</h4></div></div></div><p>Sonix provides an interface useful to many simple VR and
        entertainment applications to trigger and position sounds in 3D. This
        library provides simple audio sound objects on top of several audio
        APIs. The interface to Sonix is kept very simple in order to get
        people up and running with sound as fast as possible.</p><p>The interface to sonix is kept very simple in order to get
        people up and running with sound as fast as possible. Sonix is
        reconfigurable allowing audio APIs to be safely swapped out at runtime
        without the dependent systems noticing. Systems using this layer
        expect to be completely portable.</p></div></div><div class="section" title="Tweek"><div class="titlepage"><div><div><h3 class="title"><a name="d0e142"></a>Tweek</h3></div></div></div><div class="section" title="Directory"><div class="titlepage"><div><div><h4 class="title"><a name="d0e145"></a>Directory</h4></div></div></div><p><code class="filename">juggler/modules/tweek</code></p></div><div class="section" title="Description"><div class="titlepage"><div><div><h4 class="title"><a name="d0e151"></a>Description</h4></div></div></div><p>Tweek is a cross-platform, cross-language library consisting of
        a C++ API and a Java API. Its purpose is to provide a convenient
        mechanism for a Java-based GUI to interact with a complex C++ library
        or application. The Tweek GUI can be run in virtual environments,
        external on a palm top, or on the desktop next to a running
        application. Each of these methods gives a familiar 2D widget set that
        can control applications flexibly. To provide this capability, it uses
        CORBA.</p><p>The Java code in Tweek includes the Tweek Java API and the Tweek
        JavaBean loader application. The Java API is provided to make the use
        of JavaBeans and CORBA simpler for programmers. The JavaBean loader
        application simply loads the Beans it finds and presents them to the
        user in some sort of structured manner (for example, a collection of
        icons with web-style navigation).</p></div></div><div class="section" title="VRJConfig"><div class="titlepage"><div><div><h3 class="title"><a name="d0e158"></a>VRJConfig</h3></div></div></div><p>VRJConfig is the configuration editor for VR Juggler. It is a
      complete rewrite of VjControl, both in terms of the user interface and
      the back-end code. The new interface is based on open discussion and
      feedback from users of VR Juggler 1.0 and VjControl.</p><p>The back-end is much more extensible. It allows users to write
      plug-in editors to simplify complex editing tasks. User-defined
      configuration elements can be handled in a much more dynamic manner as
      well. No modification of VR Juggler or JCCL <span class="quote">&#8220;<span class="quote">system</span>&#8221;</span> files
      must be made to get user-defined elements into the editor.</p><p>VRJConfig is itself a JavaBean that is loaded into the Tweek Java
      GUI. VRJConfig uses JavaBeans internally to facilitate user extensions.
      All in all, VRJConfig is a highly dynamic, powerful editor for VR
      Juggler configurations.</p></div></div><div class="section" title="VR Juggler 2.x"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="d0e170"></a>VR Juggler 2.x</h2></div></div></div><p>TODO... (this is the version number of the next release of
    Juggler)</p></div></div></body></html>