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<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office">
<head>
<meta http-equiv="Content-Language" content="en-us">
<title>CD</title>
<link rel="stylesheet" type="text/css" href="../style.css">
</head>
<body>
<h3><a name="Overview">Overview</a></h3>
<p>CD is a platform-independent graphics library. It is implemented in several
platforms using native graphics libraries: Microsoft Windows (GDI and GDI+)
and X-Windows (XLIB). </p>
<p>The library contains functions to support both vector and image
applications, and the visualization surface can be either a canvas or a more
abstract surface, such as Clipboard, Metafile, PS, and so on.</p>
<p>To make the Application Programmers Interface (API) simple, all data are
standard C types (int, double or char). Thus the application program does not
have to maintain parallel data structures to deal with the graphic library.
</p>
<p>Furthermore, the list of parameters of the CD primitive functions contains
only the geometrical descriptions of the objects (line, circle, text, etc.).
Where these objects should appear and what is the their color, thickness, etc.
are defined as current state variables stored in the visualization surfaces.
That is, the library is visualization-surface oriented, meaning that all
attributes are stored in each visualization surface. </p>
<p>CD is free software, can be used for public and commercial applications.</p>
<h3><a name="Availability">Availability</a></h3>
<p>The library is available for several <strong>compilers</strong>:</p>
<ul>
<li>GCC and CC, in the UNIX environment</li>
<li>Visual C++, Borland C++, Watcom C++ and GCC (Cygwin and MingW), in the
Windows environment</li>
</ul>
<p>The library is available for several <strong>operating systems</strong>:</p>
<ul>
<li>UNIX (SunOS, IRIX, AIX, FreeBSD and Linux)</li>
<li>Microsoft Windows NT/2K/XP</li>
</ul>
<h3><a name="Suport">Support</a></h3>
<p>The official support mechanism is by e-mail, using <u>
<a href="mailto:cd@tecgraf.puc-rio.br?subject=[CD]"><b>cd</b></a></u><a href="mailto:cd@tecgraf.puc-rio.br?subject=[CD]"><u><b>@tecgraf.puc-rio.br</b></u></a>. Before sending your
message:</p>
<ul>
<li>Check if the reported behavior is not described in the user guide.</li>
<li>Check if the reported behavior is not described in the specific driver
characteristics.</li>
<li>Check the History to see if your version is updated.</li>
<li>Check the To Do list to see if your problem has already been reported.</li>
</ul>
<p>After all of the above have been checked, report the problem, including in
your message: <strong>function, element, driver, platform, and compiler.</strong></p>
<p>We host <b>CD</b> support features at <b><a href="http://luaforge.net/">
LuaForge</a></b>. It provides us Lists, News, CVS and Files. The <b>
CD</b> page at <b>LuaForge</b> is available at:
<a target="_blank" href="http://luaforge.net/projects/cdlib/">
http://luaforge.net/projects/cdlib/</a>.</p>
<p align="left">The discussion list is available at:
<a href="http://lists.luaforge.net/mailman/listinfo/cdlib-users">
http://lists.luaforge.net/mailman/listinfo/cdlib-users</a>.<br>
Source code, pre-compiled binaries and samples can be downloaded at:
<a href="http://luaforge.net/frs/?group_id=88">
http://luaforge.net/frs/?group_id=88</a>.<br>
The CVS can be browsed at: <a href="http://luaforge.net/scm/?group_id=88">
http://luaforge.net/scm/?group_id=88</a>.</p>
<p>If you want us to develop a specific feature for the library, Tecgraf is
available for partnerships and cooperation. Please contact <u><b>tcg@tecgraf.puc-rio.br</b></u>.</p>
<p>Lua documentation and resources can be found at
<a href="http://www.lua.org/">http://www.lua.org/</a>.</p>
<h3><a name="Acknowledgments">Credits</a></h3>
<p>This work was developed at Tecgraf by means of the partnership with
PETROBRAS/CENPES.</p>
<p>Library Authors:</p>
<ul>
<li>Marcelo Gattass</li>
<li>Luiz Henrique de Figueiredo</li>
<li>Luiz Fernando Martha</li>
<li>Antonio Scuri</li>
</ul>
<p>Thanks to the people that worked and contributed to the library:</p>
<ul>
<li>Alexandre Ferreira<br>
<li>André Derraik</li>
<li>Camilo Freire</li>
<li>Carlos Augusto Mendes</li>
<li>Carlos Cassino</li>
<li>Carlos Henrique Levy</li>
<li>Carolina Alfaro</li>
<li>Danilo Tuler</li>
<li>Diego Fernandes Nehab</li>
<li>Erick de Moura Ferreira</li>
<li>Marcelo Cohen</li>
<li>Milton Jonathan</li>
<li>Pedro Miller</li>
<li>Rafael Rieder</li>
<li>Renato Borges</li>
<li>Vinicius da Silva Almendra</li>
</ul>
<p>We also thank the developers of the
<a target="_blank" href="http://www.freetype.org/">FreeType</a>,
<a href="http://www.ijg.org/">libJPEG</a> and
<a href="http://www.ssec.wisc.edu/~brianp/Mesa.html" target="_blank">Mesa</a>
libraries, for making the source code available, which helped us improve our
implementation of the Simulation driver and of the X-Windows driver. Thanks to
Alan Richardson for the XVertex rotines. Thanks to
Jason Perkins for the <a href="http://premake.sourceforge.net/">Premake</a>
tool.</p>
<p>The CD distribution includes the FreeType library, this is a third party
library not developed at Tecgraf. But its license is also free and have the
same freedom as the <a href="copyright.html">Tecgraf Library License</a>. You
can read the Free Type license and copyright in the file
<a href="freetype.txt">freetype.txt</a>. FreeType is copyright David Turner,
Robert Wilhelm, and Werner Lemberg.</p>
<p>Mesa X-Windows utilities source code copyright Brian Paul. libJPEG
quantization source code copyright Thomas G. Lane. XVertex rotines source code
copyright Alan Richardson.</p>
<p>CD is registered at the National Institute of Intellectual Property in Brazil
(INPI) under the number 07571-1, and so it is protected against illegal use. See
the <a href="copyright.html">Tecgraf Library License</a> for further usage
information and Copyright.</p>
<h3><a name="About">Documentation</a></h3>
<p>This library is available at
<a href="http://www.tecgraf.puc-rio.br/cd" target="_blank">
http://www.tecgraf.puc-rio.br/cd</a>. </p>
<p>The full documentation can be downloaded from the <a href="download.html">
Download Files</a>. The documentation is also available in Adobe Acrobat and Windows HTML Help formats.</p>
<p>The HTML navigation uses the WebBook tool, available at
<a href="http://www.tecgraf.puc-rio.br/webbook" target="_blank">
http://www.tecgraf.puc-rio.br/webbook</a>.</p>
</body>
</html>
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