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<!doctype html> <html> <head> <meta charset="utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <title>Rand32 — Imath Documentation</title> <link rel="stylesheet" href="../_static/pygments.css" type="text/css" /> <link rel="stylesheet" href="../_static/bizstyle.css" type="text/css" /> <script id="documentation_options" data-url_root="../" src="../_static/documentation_options.js"></script> <script src="../_static/jquery.js"></script> <script src="../_static/underscore.js"></script> <script src="../_static/doctools.js"></script> <script async="async" src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/latest.js?config=TeX-AMS-MML_HTMLorMML"></script> <script src="../_static/bizstyle.js"></script> <link rel="index" title="Index" href="../genindex.html" /> <link rel="search" title="Search" href="../search.html" /> <link rel="next" title="Rand48" href="Rand48.html" /> <link rel="prev" title="Quat" href="Quat.html" /> <meta name="viewport" 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class="highlight"><pre><span></span><span class="c1">#include <Imath/ImathRandom.h></span> </pre></div> </div> <p>The <code class="docutils literal notranslate"><span class="pre">Rand32</span></code> class is a fast pseudo-random number generator that generates a uniformly distributed sequence with a period length of <span class="math notranslate nohighlight">\(2^32\)</span>.</p> <dl class="cpp class"> <dt id="_CPPv4N5Imath6Rand32E"> <span id="_CPPv3N5Imath6Rand32E"></span><span id="_CPPv2N5Imath6Rand32E"></span><span id="Imath::Rand32"></span><span class="target" id="class_imath_1_1_rand32"></span><em class="property">class </em><code class="sig-prename descclassname">Imath<code class="sig-prename descclassname">::</code></code><code class="sig-name descname">Rand32</code><a class="headerlink" href="#_CPPv4N5Imath6Rand32E" title="Permalink to this definition">¶</a><br /></dt> <dd><p>Fast random-number generator that generates a uniformly distributed sequence with a period length of 2^32. </p> <div class="breathe-sectiondef docutils container"> <p class="breathe-sectiondef-title rubric">Public Functions</p> <dl class="cpp function"> <dt id="_CPPv4N5Imath6Rand326Rand32Em"> <span id="_CPPv3N5Imath6Rand326Rand32Em"></span><span id="_CPPv2N5Imath6Rand326Rand32Em"></span><span id="Imath::Rand32::Rand32__unsigned-l-i"></span><span class="target" id="class_imath_1_1_rand32_1ad62d8a11adf24cc99b40fd859618eeeb"></span><em class="property">inline</em> <code class="sig-name descname">Rand32</code><span class="sig-paren">(</span>unsigned long int <em>seed</em> = 0<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5Imath6Rand326Rand32Em" title="Permalink to this definition">¶</a><br /></dt> <dd><p>Constructor, given a seed. </p> </dd></dl> <dl class="cpp function"> <dt id="_CPPv4N5Imath6Rand324initEm"> <span id="_CPPv3N5Imath6Rand324initEm"></span><span id="_CPPv2N5Imath6Rand324initEm"></span><span id="Imath::Rand32::init__unsigned-l-i"></span><span class="target" id="class_imath_1_1_rand32_1a5ade79222544d61c347d6c2c1efbeca3"></span><em class="property">inline</em> void <code class="sig-name descname">init</code><span class="sig-paren">(</span>unsigned long int <em>seed</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5Imath6Rand324initEm" title="Permalink to this definition">¶</a><br /></dt> <dd><p>Re-initialize with a given seed. </p> </dd></dl> <dl class="cpp function"> <dt id="_CPPv4N5Imath6Rand325nextbEv"> <span id="_CPPv3N5Imath6Rand325nextbEv"></span><span id="_CPPv2N5Imath6Rand325nextbEv"></span><span id="Imath::Rand32::nextb"></span><span class="target" id="class_imath_1_1_rand32_1a9904d804634ce87f7491974af63f3122"></span><em class="property">inline</em> bool <code class="sig-name descname">nextb</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5Imath6Rand325nextbEv" title="Permalink to this definition">¶</a><br /></dt> <dd><p>Get the next value in the sequence (range: [false, true]) </p> </dd></dl> <dl class="cpp function"> <dt id="_CPPv4N5Imath6Rand325nextiEv"> <span id="_CPPv3N5Imath6Rand325nextiEv"></span><span id="_CPPv2N5Imath6Rand325nextiEv"></span><span id="Imath::Rand32::nexti"></span><span class="target" id="class_imath_1_1_rand32_1a88b83a97a0b5ee1306ff29c5d3773969"></span><em class="property">inline</em> unsigned long int <code class="sig-name descname">nexti</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5Imath6Rand325nextiEv" title="Permalink to this definition">¶</a><br /></dt> <dd><p>Get the next value in the sequence (range: [0 … 0xffffffff]) </p> </dd></dl> <dl class="cpp function"> <dt id="_CPPv4N5Imath6Rand325nextfEv"> <span id="_CPPv3N5Imath6Rand325nextfEv"></span><span id="_CPPv2N5Imath6Rand325nextfEv"></span><span id="Imath::Rand32::nextf"></span><span class="target" id="class_imath_1_1_rand32_1ad25030ddee8c9cdf77b257e963707813"></span>float <code class="sig-name descname">nextf</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5Imath6Rand325nextfEv" title="Permalink to this definition">¶</a><br /></dt> <dd><p>Get the next value in the sequence (range: [0 … 1[) </p> </dd></dl> <dl class="cpp function"> <dt id="_CPPv4N5Imath6Rand325nextfEff"> <span id="_CPPv3N5Imath6Rand325nextfEff"></span><span id="_CPPv2N5Imath6Rand325nextfEff"></span><span id="Imath::Rand32::nextf__float.float"></span><span class="target" id="class_imath_1_1_rand32_1a685cbe1e25dd0016847b2da6ae31d982"></span><em class="property">inline</em> float <code class="sig-name descname">nextf</code><span class="sig-paren">(</span>float <em>rangeMin</em>, float <em>rangeMax</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5Imath6Rand325nextfEff" title="Permalink to this definition">¶</a><br /></dt> <dd><p>Get the next value in the sequence (range [rangeMin … rangeMax[) </p> </dd></dl> 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