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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>LinearSpring - p2.js</title> <link rel="stylesheet" href="http://yui.yahooapis.com/3.9.1/build/cssgrids/cssgrids-min.css"> <link rel="stylesheet" href="../assets/vendor/prettify/prettify-min.css"> <link rel="stylesheet" href="../assets/css/main.css" id="site_styles"> <link rel="icon" href="../assets/favicon.ico"> <script src="http://yui.yahooapis.com/combo?3.9.1/build/yui/yui-min.js"></script> </head> <body class="yui3-skin-sam"> <div id="doc"> <div id="hd" class="yui3-g header"> <div class="yui3-u-3-4"> <h1><img src="../assets/css/logo.png" title="p2.js" width="117" height="52"></h1> </div> <div class="yui3-u-1-4 version"> <em>API Docs for: 0.7.1</em> </div> </div> <div id="bd" class="yui3-g"> <div class="yui3-u-1-4"> <div id="docs-sidebar" class="sidebar apidocs"> <div id="api-list"> <h2 class="off-left">APIs</h2> <div id="api-tabview" class="tabview"> <ul class="tabs"> <li><a href="#api-classes">Classes</a></li> 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</label> </div> <div class="apidocs"> <div id="docs-main"> <div class="content"> <h1>LinearSpring Class</h1> <div class="box meta"> <div class="extends"> Extends <a href="../classes/Spring.html" class="crosslink">Spring</a> </div> <div class="foundat"> Defined in: <a href="../files/src_objects_LinearSpring.js.html#l7"><code>src/objects/LinearSpring.js:7</code></a> </div> </div> <div class="box intro"> <p>A spring, connecting two bodies.</p> <p>The Spring explicitly adds force and angularForce to the bodies.</p> </div> <div class="constructor"> <h2>Constructor</h2> <div id="method_LinearSpring" class="method item"> <h3 class="name"><code>LinearSpring</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code>bodyA</code> </li> <li class="arg"> <code>bodyB</code> </li> <li class="arg"> <code class="optional">[options]</code> </li> </ul><span class="paren">)</span> </div> <div class="meta"> <p> Defined in <a href="../files/src_objects_LinearSpring.js.html#l7"><code>src/objects/LinearSpring.js:7</code></a> </p> </div> <div class="description"> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name">bodyA</code> <span class="type"><a href="../classes/Body.html" class="crosslink">Body</a></span> <div class="param-description"> </div> </li> <li class="param"> <code class="param-name">bodyB</code> <span class="type"><a href="../classes/Body.html" class="crosslink">Body</a></span> <div class="param-description"> </div> </li> <li class="param"> <code class="param-name optional">[options]</code> <span class="type">Object</span> <span class="flag optional" title="This parameter is optional.">optional</span> <div class="param-description"> </div> <ul class="params-list"> <li class="param"> <code class="param-name optional">[restLength]</code> <span class="type">Number</span> <span class="flag optional" title="This parameter is optional.">optional</span> <div class="param-description"> <p>A number > 0. Default is the current distance between the world anchor points.</p> </div> </li> <li class="param"> <code class="param-name optional">[stiffness=100]</code> <span class="type">Number</span> <span class="flag optional" title="This parameter is optional.">optional</span> <div class="param-description"> <p>Spring constant (see Hookes Law). A number >= 0.</p> </div> </li> <li class="param"> <code class="param-name optional">[damping=1]</code> <span class="type">Number</span> <span class="flag optional" title="This parameter is optional.">optional</span> <div class="param-description"> <p>A number >= 0. Default: 1</p> </div> </li> <li class="param"> <code class="param-name optional">[worldAnchorA]</code> <span class="type">Array</span> <span class="flag optional" title="This parameter is optional.">optional</span> <div class="param-description"> <p>Where to hook the spring to body A, in world coordinates. Overrides the option "localAnchorA" if given.</p> </div> </li> <li class="param"> <code class="param-name optional">[worldAnchorB]</code> <span class="type">Array</span> <span class="flag optional" title="This parameter is optional.">optional</span> <div class="param-description"> </div> </li> <li class="param"> <code class="param-name optional">[localAnchorA]</code> <span class="type">Array</span> <span class="flag optional" title="This parameter is optional.">optional</span> <div class="param-description"> <p>Where to hook the spring to body A, in local body coordinates. Defaults to the body center.</p> </div> </li> <li class="param"> <code class="param-name optional">[localAnchorB]</code> <span class="type">Array</span> <span class="flag optional" title="This parameter is optional.">optional</span> <div class="param-description"> </div> </li> </ul> </li> </ul> </div> </div> </div> <div id="classdocs" class="tabview"> <ul class="api-class-tabs"> <li class="api-class-tab index"><a href="#index">Index</a></li> <li class="api-class-tab methods"><a href="#methods">Methods</a></li> <li class="api-class-tab properties"><a href="#properties">Properties</a></li> </ul> <div> <div id="index" class="api-class-tabpanel index"> <h2 class="off-left">Item Index</h2> <div class="index-section methods"> <h3>Methods</h3> <ul class="index-list methods extends"> <li class="index-item method inherited"> <a href="#method_applyForce">applyForce</a> </li> <li class="index-item method"> <a href="#method_getWorldAnchorA">getWorldAnchorA</a> </li> <li class="index-item method"> <a href="#method_getWorldAnchorB">getWorldAnchorB</a> </li> <li class="index-item method"> <a href="#method_setWorldAnchorA">setWorldAnchorA</a> </li> <li class="index-item method"> <a href="#method_setWorldAnchorB">setWorldAnchorB</a> </li> </ul> </div> <div class="index-section properties"> <h3>Properties</h3> <ul class="index-list properties extends"> <li class="index-item property inherited"> <a href="#property_bodyA">bodyA</a> </li> <li class="index-item property inherited"> <a href="#property_bodyB">bodyB</a> </li> <li class="index-item property inherited"> <a href="#property_damping">damping</a> </li> <li class="index-item property"> <a href="#property_localAnchorA">localAnchorA</a> </li> <li class="index-item property"> <a href="#property_localAnchorB">localAnchorB</a> </li> <li class="index-item property"> <a href="#property_restLength">restLength</a> </li> <li class="index-item property inherited"> <a href="#property_stiffness">stiffness</a> </li> </ul> </div> </div> <div id="methods" class="api-class-tabpanel"> <h2 class="off-left">Methods</h2> <div id="method_applyForce" class="method item"> <h3 class="name"><code>applyForce</code></h3> <span class="paren">()</span> <div class="meta"> <p>Inherited from <a href="../classes/Spring.html#method_applyForce"> Spring </a> but overwritten in <a href="../files/src_objects_LinearSpring.js.html#l112"><code>src/objects/LinearSpring.js:112</code></a> </p> </div> <div class="description"> <p>Apply the spring force to the connected bodies.</p> </div> </div> <div id="method_getWorldAnchorA" class="method item"> <h3 class="name"><code>getWorldAnchorA</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code>result</code> </li> </ul><span class="paren">)</span> </div> <div class="meta"> <p> Defined in <a href="../files/src_objects_LinearSpring.js.html#l84"><code>src/objects/LinearSpring.js:84</code></a> </p> </div> <div class="description"> <p>Get the anchor point on body A, in world coordinates.</p> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name">result</code> <span class="type">Array</span> <div class="param-description"> <p>The vector to store the result in.</p> </div> </li> </ul> </div> </div> <div id="method_getWorldAnchorB" class="method item"> <h3 class="name"><code>getWorldAnchorB</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code>result</code> </li> </ul><span class="paren">)</span> </div> <div class="meta"> <p> Defined in <a href="../files/src_objects_LinearSpring.js.html#l93"><code>src/objects/LinearSpring.js:93</code></a> </p> </div> <div class="description"> <p>Get the anchor point on body B, in world coordinates.</p> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name">result</code> <span class="type">Array</span> <div class="param-description"> <p>The vector to store the result in.</p> </div> </li> </ul> </div> </div> <div id="method_setWorldAnchorA" class="method item"> <h3 class="name"><code>setWorldAnchorA</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code>worldAnchorA</code> </li> </ul><span class="paren">)</span> </div> <div class="meta"> <p> Defined in <a href="../files/src_objects_LinearSpring.js.html#l66"><code>src/objects/LinearSpring.js:66</code></a> </p> </div> <div class="description"> <p>Set the anchor point on body A, using world coordinates.</p> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name">worldAnchorA</code> <span class="type">Array</span> <div class="param-description"> </div> </li> </ul> </div> </div> <div id="method_setWorldAnchorB" class="method item"> <h3 class="name"><code>setWorldAnchorB</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code>worldAnchorB</code> </li> </ul><span class="paren">)</span> </div> <div class="meta"> <p> Defined in <a href="../files/src_objects_LinearSpring.js.html#l75"><code>src/objects/LinearSpring.js:75</code></a> </p> </div> <div class="description"> <p>Set the anchor point on body B, using world coordinates.</p> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name">worldAnchorB</code> <span class="type">Array</span> <div class="param-description"> </div> </li> </ul> </div> </div> </div> <div id="properties" class="api-class-tabpanel"> <h2 class="off-left">Properties</h2> <div id="property_bodyA" class="property item inherited"> <h3 class="name"><code>bodyA</code></h3> <span class="type"><a href="../classes/Body.html" class="crosslink">Body</a></span> <div class="meta"> <p>Inherited from <a href="../classes/Spring.html#property_bodyA">Spring</a>: <a href="../files/src_objects_Spring.js.html#l41"><code>src/objects/Spring.js:41</code></a> </p> </div> <div class="description"> <p>First connected body.</p> </div> </div> <div id="property_bodyB" class="property item inherited"> <h3 class="name"><code>bodyB</code></h3> <span class="type"><a href="../classes/Body.html" class="crosslink">Body</a></span> <div class="meta"> <p>Inherited from <a href="../classes/Spring.html#property_bodyB">Spring</a>: <a href="../files/src_objects_Spring.js.html#l48"><code>src/objects/Spring.js:48</code></a> </p> </div> <div class="description"> <p>Second connected body.</p> </div> </div> <div id="property_damping" class="property item inherited"> <h3 class="name"><code>damping</code></h3> <span class="type">Number</span> <div class="meta"> <p>Inherited from <a href="../classes/Spring.html#property_damping">Spring</a>: <a href="../files/src_objects_Spring.js.html#l34"><code>src/objects/Spring.js:34</code></a> </p> </div> <div class="description"> <p>Damping of the spring.</p> </div> </div> <div id="property_localAnchorA" class="property item"> <h3 class="name"><code>localAnchorA</code></h3> <span class="type">Array</span> <div class="meta"> <p> Defined in <a href="../files/src_objects_LinearSpring.js.html#l31"><code>src/objects/LinearSpring.js:31</code></a> </p> </div> <div class="description"> <p>Anchor for bodyA in local bodyA coordinates.</p> </div> </div> <div id="property_localAnchorB" class="property item"> <h3 class="name"><code>localAnchorB</code></h3> <span class="type">Array</span> <div class="meta"> <p> Defined in <a href="../files/src_objects_LinearSpring.js.html#l38"><code>src/objects/LinearSpring.js:38</code></a> </p> </div> <div class="description"> <p>Anchor for bodyB in local bodyB coordinates.</p> </div> </div> <div id="property_restLength" class="property item"> <h3 class="name"><code>restLength</code></h3> <span class="type">Number</span> <div class="meta"> <p> Defined in <a href="../files/src_objects_LinearSpring.js.html#l56"><code>src/objects/LinearSpring.js:56</code></a> </p> </div> <div class="description"> <p>Rest length of the spring.</p> </div> </div> <div id="property_stiffness" class="property item inherited"> <h3 class="name"><code>stiffness</code></h3> <span class="type">Number</span> <div class="meta"> <p>Inherited from <a href="../classes/Spring.html#property_stiffness">Spring</a>: <a href="../files/src_objects_Spring.js.html#l27"><code>src/objects/Spring.js:27</code></a> </p> </div> <div class="description"> <p>Stiffness of the spring.</p> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> <script src="../assets/vendor/prettify/prettify-min.js"></script> <script>prettyPrint();</script> <script src="../assets/js/yui-prettify.js"></script> <script src="../assets/../api.js"></script> <script src="../assets/js/api-filter.js"></script> <script src="../assets/js/api-list.js"></script> <script 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