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345 lines
14 KiB
HTML
Executable File
345 lines
14 KiB
HTML
Executable File
<!DOCTYPE doctype PUBLIC "-//w3c//dtd html 4.0 transitional//en">
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<meta http-equiv="Content-Type"
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content="text/html; charset=iso-8859-1">
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<meta name="GENERATOR"
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content="Mozilla/4.79 [en] (X11; U; SunOS 5.6 sun4u) [Netscape]">
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<title>Main Page</title>
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<link href="doxygen.css" rel="stylesheet" type="text/css">
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</head>
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<body>
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<center>
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<table width="96%">
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<tbody>
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<tr>
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<td>
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<h1> <a href="http://www.opencascade.com"><img
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src="sources/logocorp.gif" border="0" height="46" width="122"
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align="left">
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</a></h1>
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</td>
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<td>
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<div align="right"><a href="http://www.opencascade.org/SALOME/"><img
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src="sources/application.gif" border="0" height="46" width="108"
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align="right">
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</a></div>
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</td>
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</tr>
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</tbody>
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</table>
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</center>
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<center>
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<h1> <a name="page2"></a>How to add your own mesher</h1>
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</center>
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<center>
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<h1> (as a set of hypotheses and algorithms)</h1>
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</center>
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<center>
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<h1> to the application.</h1>
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</center>
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<h2> <a name="cont"></a>Table of contents</h2>
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<ul>
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<li> <b><i><a href="#1">1. Introduction</a></i></b></li>
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<li> <b><i><a href="#2">2. Implementation steps</a></i></b></li>
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<ul>
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<li> <b><i><a href="#2_1">2.1. Mesher plugin package</a></i></b></li>
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<li> <b><i><a href="#2_2">2.2. List of available hypotheses and algorithms</a></i></b></li>
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<li> <b><i><a href="#2_3">2.3. Build server plugin library</a></i></b></li>
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<ul>
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<li> <b><i><a href="#2_3_1">2.3.1. Define interface to your hypotheses and
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algorithms</a></i></b></li>
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<li> <b><i><a href="#2_3_2">2.3.2. Implement functionality of your hypotheses
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and algorithms</a></i></b></li>
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<li> <b><i><a href="#2_3_3">2.3.3. Implement interface to your hypotheses
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and algorithms</a></i></b></li>
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<li> <b><i><a href="#2_3_4">2.3.4. Implement being exported method</a></i></b></li>
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</ul>
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<li> <b><i><a href="#2_4">2.4. Build client (GUI) plugin library</a></i></b></li>
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<ul>
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<li> <b><i><a href="#2_4_1">2.4.1. Implement the required GUI</a></i></b></li>
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<li> <b><i><a href="#2_4_2">2.4.2. Provide icons and messages for your
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GUI</a></i></b></li>
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<li> <b><i><a href="#2_4_3">2.4.3. Implement your hypotheses creator and
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being exported method</a></i></b></li>
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</ul>
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<li> <b><i><a href="#2_5">2.5. Provide icons for Object Browser</a></i></b></li>
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<li> <b><i><a href="#2_6">2.6. Setup SALOME environment</a></i></b></li>
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<ul type="square">
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<li><b><i><a href="#2_6_1">2.6.1. Set LD_LIBRARY_PATH, PYTHONPATH,
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PATH environment variables</a></i></b></li>
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<li><b><i><a href="#2_6_2">2.6.2. Set mesher plugin resources environment
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variable</a><br>
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</i></b></li>
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</ul>
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</ul>
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</ul>
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<h2> <a name="1"></a>1. Introduction</h2>
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All hypotheses and algorithms are available in SMESH module via plugin mechanism.
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Such approach allows easily to introduce new hypotheses and algorithms types
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to the application. Also, it makes possible the customization of available
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hypotheses and algorithms list for different users without recompilation
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of sources.<br>
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The goal of this document is to describe the process of creation external
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mesher plugins.
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<p><i><a href="#cont">Back to the contents</a></i> </p>
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<h2> <a name="2"></a>2. Implementation steps</h2>
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<h3>
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<h3> <a name="2_1"></a>2.1. <small>Mesher plugin package</small></h3>
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</h3>
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Create your mesher plugin package which will contain the sources files, e.g.
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MyMesherPlugin.<br>
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<br>
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<i><a
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href="file:///home/vsr-local/work/SALOME/SALOME2/SMESH_SRC/doc/salome/tui/SMESH/sources/static/PluginMeshers.html#cont">Back
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to the contents</a></i><br>
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<h3><a name="2_2"></a>2.2. List of available hypotheses and algorithms</h3>
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Create XML file to describe all algorithms and hypotheses, provided by your
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plugin package (see SMESH_SRC/resources/SMESH_Meshers.xml for example).<br>
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<blockquote><small><tt><big><meshers-group name="MyName"<br>
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resources="MyResourceKey"<br>
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server-lib="libMyServerLib.so"<br>
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gui-lib="libMyClientLib.so"><br>
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<hypotheses><br>
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<hypothesis type="MyHypType1"<br>
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label-id="My beautiful hypothesis name"<br>
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icon-id="my_hypo_1_icon.png"/><br>
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</hypotheses><br>
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<algorithms><br>
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<algorithm type="MyAlgType1"<br>
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label-id="My beautiful algorithm name"<br>
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icon-id="my_algo_1_icon.png"/><br>
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</algorithms><br>
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</meshers-group><br>
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</big></tt></small><br>
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<ul>
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<li>Attributes of <meshers-group> tag:</li>
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</ul>
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<blockquote>
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<ul type="circle">
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<li>value of <name> attribute is used to collect hypotheses/algoritms
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in groups; you can also use this attribute for short description of your
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mesher plugin.</li>
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<li>value of <resources> attribute (MyResourceKey) is used to
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access resources (messages and icons) from GUI (see paragraphs <a
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href="#2_4_2">2.4.2</a> and <a href="#2_5">2.5</a>); in the current implementation
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it should coincide with the name of plugin package; this limitation will
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be eliminated in the further development.</li>
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<li>value of <server-lib> attribute describes the name of your
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mesher's server plugin library (See paragraph <a href="#2_3">2.3</a>)</li>
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<li>value of <gui-lib> attribute describes the name of your mesher's
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client plugin library (See paragraph <a href="#2_4">2.4</a>)</li>
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</ul>
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</blockquote>
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<ul>
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<li>Attributes of <hypothesis/algorithm> tag:</li>
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</ul>
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<blockquote>
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<ul type="circle">
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<li>value of <type> attribute is an unique name of the hypothesis/algorithm</li>
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</ul>
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<ul type="circle">
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<ul type="square">
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<li>It is a value of _name field of your hypothesis class (see paragraph
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<a href="#2_3">2.3</a>, implementation of constructor of StdMeshers_LocalLength
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class: _name = "LocalLength")</li>
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<li>It is a key to each certain hypothesis class (see paragraph <a
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href="#2_3">2.3</a>, implementation of "GetHypothesisCreator()" method in
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StdMeshers_i.cxx)</li>
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<li>It is a key to each certain hypothesis GUI (see paragraph <a
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href="#2_4">2.4</a>, implementation of "StdMeshersGUI_HypothesisCreator::CreateHypothesis()"
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and "StdMeshersGUI_HypothesisCreator::EditHypothesis()" methods in StdMeshersGUI.cxx)</li>
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<li>It is a key to each certain hypothesis icon in Object Browser
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(see paragraph <a href="#2_4_2_1">2.4.2.1</a>)</li>
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</ul>
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</ul>
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</blockquote>
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<blockquote>
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<ul type="circle">
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<li>value of <label-id> attribute is displayed in the GUI in
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the list of available hypotheses/algorithms ("Create Hypothesis/Algorithm"
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dialog)</li>
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<li>value of <icon-id> attribute is a name of icon file, which
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is displayed in GUI in the list of available hypotheses/algorithms ("Create
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Hypothesis/Algorithm" dialog)</li>
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</ul>
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</blockquote>
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Note: All attributes values are accessible in your GUI via HypothesisData
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class (see paragraph <a href="#2_4_1">2.4.1</a>)<br>
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<br>
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Note: The environment variable SMESH_MeshersList contains the list of plugins
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names, separated by colon (":") symbol, e.g.:<br>
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<br>
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<tt> setenv SMESH_MeshersList StdMeshers:NETGENPlugin</tt><br>
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<br>
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Please, pay attention that StdMeshers should also be included into this environment
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variable, if you want to use standard hypotheses/algorithms, provided with
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SMESH module.<br>
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<br>
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The SALOME automatically locates XML files, searching them in the following
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directories:<br>
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<tt><br>
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${<PLUGINNAME>_ROOT_DIR}/share/salome/resources<br>
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${SALOME_<PluginName>Resources}<br>
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${HOME}/.salome/resources<br>
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${KERNEL_ROOT_DIR}/share/salome/resources</tt><br>
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<br>
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where <PluginName> is a name of each mesher plugin package<br>
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</blockquote>
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<i><a href="#cont">Back to the contents</a></i>
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<h3> <a name="2_3"></a>2.3. Build server plugin library <libMyServerLib.so>.</h3>
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<h4> <a name="2_3_1"></a>2.3.1. Define interface to your hypotheses and algorithms.</h4>
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<blockquote><tt>Example: SMESH_SRC/idl/SMESH_BasicHypothesis.idl<br>
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NETGENPLUGIN_SRC/src/NETGENPlugin_Algorithm.idl<br>
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</tt><tt></tt></blockquote>
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<h4> <a name="2_3_2"></a>2.3.2. Implement functionality of your hypotheses
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and algorithms.</h4>
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<blockquote>Inherit corresponding classes from SMESH.
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<p><tt>Example: SMESH_SRC/src/StdMeshers/StdMeshers_*<br>
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NETGENPLUGIN_SRC/src/NETGENPlugin_NETGEN_3D<br>
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</tt><tt></tt></p>
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</blockquote>
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<h4> <a name="2_3_3"></a>2.3.3.Implement interface to your hypotheses and
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algorithms.</h4>
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<blockquote><tt>Inherit corresponding classes from SMESH_I.</tt>
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<p><tt>Example: SMESH_SRC/src/StdMeshers_I/SMESH_*_i<br>
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NETGENPLUGIN_SRC/src/NETGENPlugin_NETGEN_3D_i<br>
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</tt><tt></tt></p>
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</blockquote>
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<h4> <a name="2_3_4"></a>2.3.4. Implement being exported method.</h4>
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<blockquote><tt>GenericHypothesisCreator_i* GetHypothesisCreator (const char*
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aHypType)</tt>
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<p><aHypType> is a value of <type> attribute in the XML-description
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file</p>
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</blockquote>
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<blockquote><tt>Example: SMESH_SRC/src/StdMeshers_I/StdMeshers_i.cxx<br>
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NETGENPLUGIN_SRC/src/NETGENPlugin_i.cxx<br>
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</tt><tt></tt></blockquote>
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<i><a href="#cont">Back to the contents</a></i>
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<h3> <a name="2_4"></a>2.4. Build client (GUI) plugin library <libMyClientLib.so>.</h3>
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<blockquote>This step is required only if your hypotheses/algorithms need
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specific GUI for their construction.</blockquote>
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<h4> <a name="2_4_1"></a>2.4.1. Implement the required GUI (e.g. construction
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dialog boxes).</h4>
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<blockquote><tt>Example: SMESH_SRC/src/StdMeshersGUI/StdMeshersGUI_*Dlg</tt>
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<p>Note: all data from XML-description files is accessible in your GUI
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via HypothesisData class (mySMESHGUI->GetHypothesisData (aHypType),
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see SMESHGUI_Hypotheses.h for HypothesisData definition)</p>
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</blockquote>
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<h4> <a name="2_4_2"></a>2.4.2. Provide icons and messages for your GUI.</h4>
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<h5> <a name="2_4_2_1"></a>2.4.2.1. Implement resource files</h5>
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<blockquote><tt>MyResourceKey_icons.po and MyResourceKey_msg_en.po</tt>
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<p><tt>Example: SMESH_SRC/src/StdMeshersGUI/StdMeshers_*.po<br>
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NETGENPLUGIN_SRC/src/NETGENPlugin_icons.po<br>
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</tt><br>
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Note: ICON_SMESH_TREE_HYPO_MyHypType1 is ID of icon for Object Browser for
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hypothesis with type="MyHypType1"; ICON_SMESH_TREE_ALGO_MyAlgType1 is ID
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of icon for Object Browser for algorithm with type="MyAlgType1".<br>
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See paragraph 2 for definition of MyResourceKey, MyHypType1, MyAlgType1.<tt><br>
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</tt></p>
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</blockquote>
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<h5> <a name="2_4_2_2"></a>2.4.2.2. Define environment variable SALOME_<MyResourceKey>Resources</h5>
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<blockquote>It should point to the directory where resources are situated.</blockquote>
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<blockquote><tt>Example: setenv SALOME_StdMeshersResources ${SMESH_ROOT_DIR}/share/salome/resources</tt></blockquote>
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<h4> <a name="2_4_3"></a>2.4.3. Implement your Hypothesis Creator and being
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exported method</h4>
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<blockquote><tt>SMESHGUI_GenericHypothesisCreator* GetHypothesisCreator</tt>
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<br>
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<tt> (QString aHypType, QString aServerLibName, SMESHGUI* aSMESHGUI)</tt>
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<p><aHypType> is to pass a value of <type> attribute in XML-description
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file;<br>
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<aServerLibName> is to pass a value of <server-lib> attribute
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in XML-description file. </p>
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<p><tt>Example: SMESH_SRC/src/StdMeshersGUI/StdMeshersGUI.cxx</tt></p>
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</blockquote>
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<i><a href="#cont">Back to the contents</a></i>
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<h3> <a name="2_5"></a>2.5. Provide icons for object browser.</h3>
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<blockquote>If your hypotheses/algorithms do not need specific GUI, but you
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want to provide icons for object browser, see <a href="#2_4_2">2.4.2</a> paragrath.<br>
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</blockquote>
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<div align="left">
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<p><i><a
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href="file:///home/vsr-local/work/SALOME/SALOME2/SMESH_SRC/doc/salome/tui/SMESH/sources/static/PluginMeshers.html#cont">Back
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to the contents</a></i> </p>
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</div>
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<h3> <a name="2_6"></a>2.6. Setup your SALOME environment.</h3>
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<h4> <a name="2_6_1"></a>2.6.1. Add your plugin to the LD_LIBRARY_PATH,
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PYTHONPATH (and maybe PATH) environment variables.<br>
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</h4>
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<blockquote><tt>setenv PATH <path-to-my-plugin>/bin/salome:${PATH}<br>
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setenv LD_LIBRARY_PATH <path-to-my-plugin>/lib/salome:${LD_LIBRARY_PATH}<br>
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Setenv PYTHONPATH <path-to-my-plugin>/lib/python2.2/site-packages/salome:${PYTHONPATH}<br>
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</tt> <br>
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</blockquote>
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<h4> <a name="2_6_2"></a>2.6.2. Set mesher plugin resources environment
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variable</h4>
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<blockquote> This enviroment variable is used to set meshers plugins
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which should be loaded by SMESH module (see <a href="#2_4_2_2">2.4.2.2</a>
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paragraph). Add your plugin to this variable. All plugins are separated by
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colon (":") symbol.<br>
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<br>
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Note: If you use runSalome.py script from KERNEL package to launch SALOME,
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you may not to set environment variables, because this script sets them itself.
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All what you should do is to add <plugin> section to your ${HOME}/.salome/salome.launch
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file for SMESH module section:<br>
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<tt><br>
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...<br>
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<modules-list><br>
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...<br>
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<module name="SMESH"><br>
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<plugin name="MyMesher"/><br>
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</module><br>
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...<br>
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</modules-list><br>
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...</tt><br>
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</blockquote>
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<i><a href="#cont">Back to the contents</a></i> <br>
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<br>
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</body>
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</html>
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