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<h1>SymbolDefinition</h1>
<p>Symbols allow you to place multiple instances of an item in your project. This can save memory, since all instances of a symbol simply refer to the original item and it can speed up moving around complex objects, since internal properties such as segment lists and gradient positions don’t need to be updated with every transformation.</p>
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<h2>Constructors</h2>
<div id="symboldefinition-item" class="member">
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<a name="symboldefinition-item" href="#symboldefinition-item"><tt><b>SymbolDefinition</b>(item[, dontCenter])</tt></a>
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<p>Creates a Symbol definition.</p>
<ul class="member-list">
<h4>Parameters:</h4>
<li>
<tt>item:</tt>
<a href="../classes/Item.html"><tt>Item</tt></a>
— the source item which is removed from the scene graph and becomes the symbol’s definition.
</li>
<li>
<tt>dontCenter:</tt>
<tt>Boolean</tt>
— optional, default: <tt>false</tt>
</li>
</ul>
<ul class="member-list">
<h4>Returns:</h4>
<li>
<tt><a href="../classes/SymbolDefinition.html"><tt>SymbolDefinition</tt></a></tt>
</li>
</ul>
<h4>Example:<span class="description">Placing 100 instances of a symbol:</span></h4>
<div class="paperscript split">
<div class="buttons">
<div class="button run">Run</div>
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<script type="text/paperscript" canvas="canvas-0">
var path = new Path.Star(new Point(0, 0), 6, 5, 13);
path.style = {
fillColor: 'white',
strokeColor: 'black'
};
// Create a symbol definition from the path:
var definition = new SymbolDefinition(path);
// Place 100 instances of the symbol definition:
for (var i = 0; i < 100; i++) {
// Place an instance of the symbol definition in the project:
var instance = definition.place();
// Move the instance to a random position within the view:
instance.position = Point.random() * view.size;
// Rotate the instance by a random amount between
// 0 and 360 degrees:
instance.rotate(Math.random() * 360);
// Scale the instance between 0.25 and 1:
instance.scale(0.25 + Math.random() * 0.75);
}
</script>
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<!-- ================================ properties =========================== -->
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<h2>Properties</h2>
<div id="project" class="member">
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<a name="project" href="#project"><tt><b>project</b></tt></a>
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<p>The project that this symbol belongs to.</p>
<p>Read only.</p>
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<h4>Type:</h4>
<li>
<a href="../classes/Project.html"><tt>Project</tt></a>
</li>
</ul>
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</div>
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<div id="item" class="member">
<div class="member-link">
<a name="item" href="#item"><tt><b>item</b></tt></a>
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<p>The item used as the symbol’s definition.</p>
<ul class="member-list">
<h4>Type:</h4>
<li>
<a href="../classes/Item.html"><tt>Item</tt></a>
</li>
</ul>
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</div>
</div>
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<!-- ============================== methods ================================ -->
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<h2>Methods</h2>
<div id="place" class="member">
<div class="member-link">
<a name="place" href="#place"><tt><b>place</b>([position])</tt></a>
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<div class="member-description hidden">
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<p>Places in instance of the symbol in the project.</p>
<ul class="member-list">
<h4>Parameters:</h4>
<li>
<tt>position:</tt>
<a href="../classes/Point.html"><tt>Point</tt></a>
— the position of the placed symbol
— optional
</li>
</ul>
<ul class="member-list">
<h4>Returns:</h4>
<li>
<tt><a href="../classes/SymbolItem.html"><tt>SymbolItem</tt></a></tt>
</li>
</ul>
</div>
</div>
</div>
<div id="clone" class="member">
<div class="member-link">
<a name="clone" href="#clone"><tt><b>clone</b>()</tt></a>
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<div class="member-description hidden">
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<p>Returns a copy of the symbol.</p>
<ul class="member-list">
<h4>Returns:</h4>
<li>
<tt><a href="../classes/SymbolDefinition.html"><tt>SymbolDefinition</tt></a></tt>
</li>
</ul>
</div>
</div>
</div>
<div id="equals-symbol" class="member">
<div class="member-link">
<a name="equals-symbol" href="#equals-symbol"><tt><b>equals</b>(symbol)</tt></a>
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<div class="member-description hidden">
<div class="member-text">
<p>Checks whether the symbol’s definition is equal to the supplied symbol.</p>
<ul class="member-list">
<h4>Parameters:</h4>
<li>
<tt>symbol:</tt>
<a href="../classes/SymbolDefinition.html"><tt>SymbolDefinition</tt></a>
</li>
</ul>
<ul class="member-list">
<h4>Returns:</h4>
<li>
<tt><tt>Boolean</tt></tt> — <tt>true</tt> if they are equal, <tt>false</tt> otherwise
</li>
</ul>
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