1<p> The libSBML “render” extension implements support for the SBML 2Level 3 <em>Graphical Rendering</em> ("render") package. It can be used 3in SBML Level 3 Version 1 and Version 2 documents. 4 5<h2>Introduction</h2> 6 7<p> The graphical depiction of a reaction network diagram should be described 8 as graphical representations of species and reactions, and not as arbitrary 9 drawing or graph. While it may seem unnecessary to invent a new language 10 when an existing one like SVG could in principle be used to describe the 11 layout of a reaction network, there are good reasons to have a language 12 tailored specifically for the layout of SBML models. For example, most 13 programs that will use this SBML extension are primarily programs dealing 14 with biochemical models. Internally, they will have data structures for 15 species and reactions, so it will also be natural for them to depict the 16 reaction network in terms of species and reactions (and not in terms of, 17 e.g., polygons or splines). 18 19 <p> The Graphical Rendering ("render") package for SBML Level 3 is a 20 companion to the Graphical Layout ("layout") package. Together, they 21 provide a complete format for describing the layout of a diagram 22 and the visual rendition of the entities within it. 23 24 <h2>Authors</h2> 25 26 The primary authors of the SBML Level 3 Render specification are Frank 27 T. Bergmann, Sarah M. Keating, Ralph Gauges, Sven Sahle and Katja Wengler. 28 29 <h2>The specification for this SBML package</h2> 30 31 <p style="color: #880000"> This API documentation for libSBML does not 32 provide a complete explanation of the SBML Level 3 33 “render” package. If you are developing software that uses 34 “render”, you are strongly urged to read the actual 35 specification for the package. A link to the specification document 36 current is provided below, along with a link to the page of known issues 37 (if any). 38 39 <table border="0" class="centered text-table normal-font alt-row-colors" style="padding-bottom: 0.5em"> 40 <caption class="top-caption">Specification for SBML Level 3 Render, 41 current at the time of this libSBML release (@PACKAGE_VERSION@). Note: 42 an Internet connection is required to access these documents.</caption> 43 <tr> 44 <th style="text-align: left">Specification (in PDF format)</th> 45 <th style="text-align: left">Known issues</th> 46 </tr> 47 48 <tr><td> 49 <a class="spec-link" target="_blank" href="@PACKAGE_RENDER_SPEC_URL@"> 50 <img class="big-icon" width="22px" src="icon-format-pdf-44px.jpg">Render package, Version @PACKAGE_RENDER_VERSION@ Release @PACKAGE_RENDER_RELEASE@</a> 51 </td><td> 52 <a class="spec-link" target="_blank" href="@PACKAGE_RENDER_ERRATA_URL@"> 53 <img class="big-icon" width="22px" src="icon-format-html-44px.jpg">Errata page</a> 54 </td></tr> 55 </table> 56