Page MenuHomec4science
Files F101316425

UnitsModule.html
No OneTemporary
Actions

File Metadata

Created
Fri, Feb 7, 17:31

UnitsModule.html
View Options

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>the units module &mdash; pNbody v4 documentation</title>
<link rel="stylesheet" href="../_static/default.css" type="text/css" />
<link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
<script type="text/javascript">
var DOCUMENTATION_OPTIONS = {
URL_ROOT: '../',
VERSION: '4',
COLLAPSE_INDEX: false,
FILE_SUFFIX: '.html',
HAS_SOURCE: true
};
</script>
<script type="text/javascript" src="../_static/jquery.js"></script>
<script type="text/javascript" src="../_static/underscore.js"></script>
<script type="text/javascript" src="../_static/doctools.js"></script>
<link rel="top" title="pNbody v4 documentation" href="../index.html" />
<link rel="up" title="Reference" href="Reference.html" />
<link rel="next" title="the ctes module" href="CtesModule.html" />
<link rel="prev" title="the io module" href="IoModule.html" />
</head>
<body>
<div class="related">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="../genindex.html" title="General Index"
accesskey="I">index</a></li>
<li class="right" >
<a href="../py-modindex.html" title="Python Module Index"
>modules</a> |</li>
<li class="right" >
<a href="../np-modindex.html" title="Python Module Index"
>modules</a> |</li>
<li class="right" >
<a href="CtesModule.html" title="the ctes module"
accesskey="N">next</a> |</li>
<li class="right" >
<a href="IoModule.html" title="the io module"
accesskey="P">previous</a> |</li>
<li><a href="../index.html">pNbody v4 documentation</a> &raquo;</li>
<li><a href="Reference.html" accesskey="U">Reference</a> &raquo;</li>
</ul>
</div>
<div class="document">
<div class="documentwrapper">
<div class="bodywrapper">
<div class="body">
<div class="section" id="module-pNbody.units">
<span id="the-units-module"></span><h1>the units module<a class="headerlink" href="#module-pNbody.units" title="Permalink to this headline">¶</a></h1>
<dl class="class">
<dt id="pNbody.units.PhysCte">
<em class="property">class </em><tt class="descclassname">pNbody.units.</tt><tt class="descname">PhysCte</tt><big>(</big><em>value</em>, <em>Unit</em><big>)</big><a class="headerlink" href="#pNbody.units.PhysCte" title="Permalink to this definition">¶</a></dt>
<dd><p>Physical constant</p>
<p class="rubric">Methods</p>
</dd></dl>
<dl class="function">
<dt id="pNbody.units.Set_SystemUnits_From_Params">
<tt class="descclassname">pNbody.units.</tt><tt class="descname">Set_SystemUnits_From_Params</tt><big>(</big><em>params</em><big>)</big><a class="headerlink" href="#pNbody.units.Set_SystemUnits_From_Params" title="Permalink to this definition">¶</a></dt>
<dd><p>return a system of units from given parameters</p>
<p>params is a dictionary that must constains at least</p>
<p>params[&#8216;UnitVelocity_in_cm_per_s&#8217;]
params[&#8216;UnitMass_in_g&#8217;]
params[&#8216;UnitLength_in_cm&#8217;]</p>
</dd></dl>
<dl class="class">
<dt id="pNbody.units.UnitSystem">
<em class="property">class </em><tt class="descclassname">pNbody.units.</tt><tt class="descname">UnitSystem</tt><big>(</big><em>UnitSysName</em>, <em>UnitLst</em><big>)</big><a class="headerlink" href="#pNbody.units.UnitSystem" title="Permalink to this definition">¶</a></dt>
<dd><p>Units system</p>
<p class="rubric">Methods</p>
<dl class="method">
<dt id="pNbody.units.UnitSystem.convertionFactorTo">
<tt class="descname">convertionFactorTo</tt><big>(</big><em>newUnits</em><big>)</big><a class="headerlink" href="#pNbody.units.UnitSystem.convertionFactorTo" title="Permalink to this definition">¶</a></dt>
<dd><p>return the conversion factor to obtain the new units</p>
</dd></dl>
<dl class="method">
<dt id="pNbody.units.UnitSystem.info">
<tt class="descname">info</tt><big>(</big><big>)</big><a class="headerlink" href="#pNbody.units.UnitSystem.info" title="Permalink to this definition">¶</a></dt>
<dd><p>print some info</p>
</dd></dl>
<dl class="method">
<dt id="pNbody.units.UnitSystem.into">
<tt class="descname">into</tt><big>(</big><em>newUnits</em><big>)</big><a class="headerlink" href="#pNbody.units.UnitSystem.into" title="Permalink to this definition">¶</a></dt>
<dd><p>return into the new units</p>
</dd></dl>
</dd></dl>
<dl class="class">
<dt id="pNbody.units.Units">
<em class="property">class </em><tt class="descclassname">pNbody.units.</tt><tt class="descname">Units</tt><big>(</big><em>symbol</em>, <em>factor=1.0</em>, <em>power=1</em>, <em>ulist=</em><span class="optional">[</span><span class="optional">]</span><big>)</big><a class="headerlink" href="#pNbody.units.Units" title="Permalink to this definition">¶</a></dt>
<dd><p>Units</p>
<p class="rubric">Methods</p>
<dl class="method">
<dt id="pNbody.units.Units.GatherBaseUnits">
<tt class="descname">GatherBaseUnits</tt><big>(</big><big>)</big><a class="headerlink" href="#pNbody.units.Units.GatherBaseUnits" title="Permalink to this definition">¶</a></dt>
<dd><p>create the self.bases list (recursively)</p>
</dd></dl>
</dd></dl>
<dl class="data">
<dt id="pNbody.units.gal">
<tt class="descclassname">pNbody.units.</tt><tt class="descname">gal</tt><a class="headerlink" href="#pNbody.units.gal" title="Permalink to this definition">¶</a></dt>
<dd><p>constantes are now defined in ctes.py</p>
<p>slight = PhysCte(2.99792458e8,Unit_m/Unit_s)
G = PhysCte(6.6732e-11,Unit_G)
q_electron = PhysCte(1.6022e-19,Unit_C)
planck = PhysCte(6.6262e-34,Unit_J*Unit_s)
boltzmann = PhysCte(1.3807e-23,Unit_J/Unit_K)
m_electron = PhysCte(9.1095e-31,Unit_kg)
m_proton = PhysCte(1.6726e-27,Unit_kg)
m_neutron = PhysCte(1.6750e-27,Unit_kg)
Na = PhysCte(6.0220e+23,Unit_mol)
R = PhysCte(8.3144e+00,Unit_J/Unit_mol)
Av = PhysCte(6.828e-50 ,Unit_Pa*Unit_m**6)
Bv = PhysCte(4.419e-29,Unit_m**3)</p>
</dd></dl>
</div>
</div>
</div>
</div>
<div class="sphinxsidebar">
<div class="sphinxsidebarwrapper">
<p class="logo"><a href="../index.html">
<img class="logo" src="../_static/icon-small.jpg" alt="Logo"/>
</a></p>
<h4>Previous topic</h4>
<p class="topless"><a href="IoModule.html"
title="previous chapter">the io module</a></p>
<h4>Next topic</h4>
<p class="topless"><a href="CtesModule.html"
title="next chapter">the ctes module</a></p>
<h3>This Page</h3>
<ul class="this-page-menu">
<li><a href="../_sources/rst/UnitsModule.txt"
rel="nofollow">Show Source</a></li>
</ul>
<div id="searchbox" style="display: none">
<h3>Quick search</h3>
<form class="search" action="../search.html" method="get">
<input type="text" name="q" size="18" />
<input type="submit" value="Go" />
<input type="hidden" name="check_keywords" value="yes" />
<input type="hidden" name="area" value="default" />
</form>
<p class="searchtip" style="font-size: 90%">
Enter search terms or a module, class or function name.
</p>
</div>
<script type="text/javascript">$('#searchbox').show(0);</script>
</div>
</div>
<div class="clearer"></div>
</div>
<div class="related">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="../genindex.html" title="General Index"
>index</a></li>
<li class="right" >
<a href="../py-modindex.html" title="Python Module Index"
>modules</a> |</li>
<li class="right" >
<a href="../np-modindex.html" title="Python Module Index"
>modules</a> |</li>
<li class="right" >
<a href="CtesModule.html" title="the ctes module"
>next</a> |</li>
<li class="right" >
<a href="IoModule.html" title="the io module"
>previous</a> |</li>
<li><a href="../index.html">pNbody v4 documentation</a> &raquo;</li>
<li><a href="Reference.html" >Reference</a> &raquo;</li>
</ul>
</div>
<div class="footer">
&copy; Copyright 2011, Yves Revaz.
Created using <a href="http://sphinx.pocoo.org/">Sphinx</a> 1.0.4.
</div>
</body>
</html>

Event Timeline

c4science · Help