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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>JSDoc: Namespace: fabric</title>
<script src="scripts/prettify/prettify.js"> </script>
<script src="scripts/prettify/lang-css.js"> </script>
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</head>
<body>
<ul id="header">
<li><a href="http://fabricjs.com/">Home</a></li>
<li><a href="http://fabricjs.com/demos">Demos</a></li>
<li><a href="http://fabricjs.com/articles">Tutorial</a></li>
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<a href="https://twitter.com/fabricjs" class="twitter-follow-button" data-show-count="true">Follow @fabricjs</a>
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// very retarted fix but fuck it
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<nav>
<div class="upperNav" >
<script>
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var gcse = document.createElement('script');
gcse.type = 'text/javascript';
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<gcse:search></gcse:search>
</div>
<div class="lowerNav" >
<h2><a href="index.html">Home</a></h2><h3>Classes</h3><ul><li><a href="fabric.ActiveSelection.html">ActiveSelection</a></li><li><a href="fabric.BaseBrush.html">BaseBrush</a></li><li><a href="fabric.Canvas.html">Canvas</a></li><li><a href="fabric.Circle.html">Circle</a></li><li><a href="fabric.CircleBrush.html">CircleBrush</a></li><li><a href="fabric.Color.html">Color</a></li><li><a href="fabric.Ellipse.html">Ellipse</a></li><li><a href="fabric.Gradient.html">Gradient</a></li><li><a href="fabric.Group.html">Group</a></li><li><a href="fabric.Image.html">Image</a></li><li><a href="fabric.Image.filters.BaseFilter.html">BaseFilter</a></li><li><a href="fabric.Image.filters.Blur.html">Blur</a></li><li><a href="fabric.Image.filters.Brightness.html">Brightness</a></li><li><a href="fabric.Image.filters.ColorMatrix.html">ColorMatrix</a></li><li><a href="fabric.Image.filters.Contrast.html">Contrast</a></li><li><a href="fabric.Image.filters.Convolute.html">Convolute</a></li><li><a href="fabric.Image.filters.fabric.Image.filter.BlendColor.html">BlendColor</a></li><li><a href="fabric.Image.filters.fabric.Image.filter.BlendImage.html">BlendImage</a></li><li><a href="fabric.Image.filters.Gamma.html">Gamma</a></li><li><a href="fabric.Image.filters.Grayscale.html">Grayscale</a></li><li><a href="fabric.Image.filters.HueRotation.html">HueRotation</a></li><li><a href="fabric.Image.filters.Invert.html">Invert</a></li><li><a href="fabric.Image.filters.Noise.html">Noise</a></li><li><a href="fabric.Image.filters.Pixelate.html">Pixelate</a></li><li><a href="fabric.Image.filters.RemoveColor.html">RemoveColor</a></li><li><a href="fabric.Image.filters.Resize.html">Resize</a></li><li><a href="fabric.Image.filters.Saturation.html">Saturation</a></li><li><a href="fabric.Image.filters.Vibrance.html">Vibrance</a></li><li><a href="fabric.Intersection.html">Intersection</a></li><li><a href="fabric.IText.html">IText</a></li><li><a href="fabric.Line.html">Line</a></li><li><a href="fabric.Object.html">Object</a></li><li><a href="fabric.Path.html">Path</a></li><li><a href="fabric.Pattern.html">Pattern</a></li><li><a href="fabric.PatternBrush.html">PatternBrush</a></li><li><a href="fabric.PencilBrush.html">PencilBrush</a></li><li><a href="fabric.Point.html">Point</a></li><li><a href="fabric.Polygon.html">Polygon</a></li><li><a href="fabric.Polyline.html">Polyline</a></li><li><a href="fabric.Rect.html">Rect</a></li><li><a href="fabric.Shadow.html">Shadow</a></li><li><a href="fabric.SprayBrush.html">SprayBrush</a></li><li><a href="fabric.StaticCanvas.html">StaticCanvas</a></li><li><a href="fabric.Text.html">Text</a></li><li><a href="fabric.Textbox.html">Textbox</a></li><li><a href="fabric.Triangle.html">Triangle</a></li></ul><h3>Namespaces</h3><ul><li><a href="fabric.html">fabric</a></li><li><a href="fabric.Collection.html">Collection</a></li><li><a href="fabric.CommonMethods.html">CommonMethods</a></li><li><a href="fabric.Image.filters.html">filters</a></li><li><a href="fabric.Observable.html">Observable</a></li><li><a href="fabric.util.html">util</a></li><li><a href="fabric.util.array.html">array</a></li><li><a href="fabric.util.ease.html">ease</a></li><li><a href="fabric.util.object.html">object</a></li><li><a href="fabric.util.string.html">string</a></li></ul><h3>Global</h3><ul><li><a href="global.html#__cachedLines">__cachedLines</a></li><li><a href="global.html#_splitTextIntoLines">_splitTextIntoLines</a></li><li><a href="global.html#_wrapLine">_wrapLine</a></li><li><a href="global.html#_wrapText">_wrapText</a></li><li><a href="global.html#applyFilters">applyFilters</a></li><li><a href="global.html#cancelAll">cancelAll</a></li><li><a href="global.html#cancelByCanvas">cancelByCanvas</a></li><li><a href="global.html#cancelByTarget">cancelByTarget</a></li><li><a href="global.html#copyGLTo2DDrawImage">copyGLTo2DDrawImage</a></li><li><a href="global.html#copyGLTo2DPutImageData">copyGLTo2DPutImageData</a></li><li><a href="global.html#dynamicMinWidth">dynamicMinWidth</a></li><li><a href="global.html#findAnimation">findAnimation</a></li><li><a href="global.html#findAnimationIndex">findAnimationIndex</a></li><li><a href="global.html#findAnimationsByTarget">findAnimationsByTarget</a></li><li><a href="global.html#isEmptyStyles">isEmptyStyles</a></li><li><a href="global.html#isEndOfWrapping">isEndOfWrapping</a></li><li><a href="global.html#lockScalingFlip">lockScalingFlip</a></li><li><a href="global.html#minWidth">minWidth</a></li><li><a href="global.html#missingNewlineOffset">missingNewlineOffset</a></li><li><a href="global.html#noScaleCache">noScaleCache</a></li><li><a href="global.html#splitByGrapheme">splitByGrapheme</a></li><li><a href="global.html#styleHas">styleHas</a></li><li><a href="global.html#toObject">toObject</a></li><li><a href="global.html#type">type</a></li></ul>
</div>
</nav>
<div id="main">
<h1 class="page-title">Namespace: fabric</h1>
<section>
<header>
<h2>fabric</h2>
</header>
<article>
<div class="container-overview">
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="fabric.js.html">fabric.js</a>, <a href="fabric.js.html#line4284">line 4284</a>
</li></ul></dd>
</dl>
</div>
<h3 class="subsection-title">Classes</h3>
<dl>
<dt><a href="fabric.ActiveSelection.html">ActiveSelection</a></dt>
<dd></dd>
<dt><a href="fabric.BaseBrush.html">BaseBrush</a></dt>
<dd></dd>
<dt><a href="fabric.Canvas.html">Canvas</a></dt>
<dd></dd>
<dt><a href="fabric.Circle.html">Circle</a></dt>
<dd></dd>
<dt><a href="fabric.CircleBrush.html">CircleBrush</a></dt>
<dd></dd>
<dt><a href="fabric.Color.html">Color</a></dt>
<dd></dd>
<dt><a href="fabric.Ellipse.html">Ellipse</a></dt>
<dd></dd>
<dt><a href="fabric.Gradient.html">Gradient</a></dt>
<dd></dd>
<dt><a href="fabric.Group.html">Group</a></dt>
<dd></dd>
<dt><a href="fabric.Image.html">Image</a></dt>
<dd></dd>
<dt><a href="fabric.Intersection.html">Intersection</a></dt>
<dd></dd>
<dt><a href="fabric.IText.html">IText</a></dt>
<dd></dd>
<dt><a href="fabric.Line.html">Line</a></dt>
<dd></dd>
<dt><a href="fabric.Object.html">Object</a></dt>
<dd></dd>
<dt><a href="fabric.Path.html">Path</a></dt>
<dd></dd>
<dt><a href="fabric.Pattern.html">Pattern</a></dt>
<dd></dd>
<dt><a href="fabric.PatternBrush.html">PatternBrush</a></dt>
<dd></dd>
<dt><a href="fabric.PencilBrush.html">PencilBrush</a></dt>
<dd></dd>
<dt><a href="fabric.Point.html">Point</a></dt>
<dd></dd>
<dt><a href="fabric.Polygon.html">Polygon</a></dt>
<dd></dd>
<dt><a href="fabric.Polyline.html">Polyline</a></dt>
<dd></dd>
<dt><a href="fabric.Rect.html">Rect</a></dt>
<dd></dd>
<dt><a href="fabric.Shadow.html">Shadow</a></dt>
<dd></dd>
<dt><a href="fabric.SprayBrush.html">SprayBrush</a></dt>
<dd></dd>
<dt><a href="fabric.StaticCanvas.html">StaticCanvas</a></dt>
<dd></dd>
<dt><a href="fabric.Text.html">Text</a></dt>
<dd></dd>
<dt><a href="fabric.Textbox.html">Textbox</a></dt>
<dd></dd>
<dt><a href="fabric.Triangle.html">Triangle</a></dt>
<dd></dd>
</dl>
<h3 class="subsection-title">Namespaces</h3>
<dl>
<dt><a href="fabric.Collection.html">Collection</a></dt>
<dd></dd>
<dt><a href="fabric.CommonMethods.html">CommonMethods</a></dt>
<dd></dd>
<dt><a href="fabric.Observable.html">Observable</a></dt>
<dd></dd>
<dt><a href="fabric.util.html">util</a></dt>
<dd></dd>
</dl>
<h3 class="subsection-title">Members</h3>
<h4 class="name" id=".arcToSegmentsCache"><a href="#.arcToSegmentsCache" ><span class="type-signature">(static) </span>arcToSegmentsCache<span class="type-signature"></span></a></h4>
<div class="description">
This object contains the result of arc to bezier conversion for faster retrieving if the same arc needs to be converted again.
It was an internal variable, is accessible since version 2.3.4
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="fabric.js.html">fabric.js</a>, <a href="fabric.js.html#line169">line 169</a>
</li></ul></dd>
</dl>
<h4 class="name" id=".boundsOfCurveCache"><a href="#.boundsOfCurveCache" ><span class="type-signature">(static) </span>boundsOfCurveCache<span class="type-signature"></span></a></h4>
<div class="description">
This object keeps the results of the boundsOfCurve calculation mapped by the joined arguments necessary to calculate it.
It does speed up calculation, if you parse and add always the same paths, but in case of heavy usage of freedrawing
you do not get any speed benefit and you get a big object in memory.
The object was a private variable before, while now is appended to the lib so that you have access to it and you
can eventually clear it.
It was an internal variable, is accessible since version 2.3.4
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="fabric.js.html">fabric.js</a>, <a href="fabric.js.html#line179">line 179</a>
</li></ul></dd>
</dl>
<h4 class="name" id=".browserShadowBlurConstant"><a href="#.browserShadowBlurConstant" ><span class="type-signature">(static) </span>browserShadowBlurConstant<span class="type-signature"> :Number</span></a></h4>
<div class="description">
Browser-specific constant to adjust CanvasRenderingContext2D.shadowBlur value,
which is unitless and not rendered equally across browsers.
Values that work quite well (as of October 2017) are:
- Chrome: 1.5
- Edge: 1.75
- Firefox: 0.9
- Safari: 0.95
</div>
<h5>Type:</h5>
<ul>
<li>
<span class="param-type">Number</span>
</li>
</ul>
<dl class="details">
<dt class="tag-since">Since:</dt>
<dd class="tag-since"><ul class="dummy"><li>2.0.0</li></ul></dd>
<dt class="tag-default">Default Value:</dt>
<dd class="tag-default"><ul class="dummy">
<li>1</li>
</ul></dd>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="fabric.js.html">fabric.js</a>, <a href="fabric.js.html#line163">line 163</a>
</li></ul></dd>
</dl>
<h4 class="name" id=".cachesBoundsOfCurve"><a href="#.cachesBoundsOfCurve" ><span class="type-signature">(static) </span>cachesBoundsOfCurve<span class="type-signature"></span></a></h4>
<div class="description">
If disabled boundsOfCurveCache is not used. For apps that make heavy usage of pencil drawing probably disabling it is better
</div>
<dl class="details">
<dt class="tag-default">Default Value:</dt>
<dd class="tag-default"><ul class="dummy">
<li>true</li>
</ul></dd>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="fabric.js.html">fabric.js</a>, <a href="fabric.js.html#line185">line 185</a>
</li></ul></dd>
</dl>
<h4 class="name" id=".charWidthsCache"><a href="#.charWidthsCache" ><span class="type-signature">(static) </span>charWidthsCache<span class="type-signature"></span></a></h4>
<div class="description">
Cache Object for widths of chars in text rendering.
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="fabric.js.html">fabric.js</a>, <a href="fabric.js.html#line111">line 111</a>
</li></ul></dd>
</dl>
<h4 class="name" id=".devicePixelRatio"><a href="#.devicePixelRatio" ><span class="type-signature">(static) </span>devicePixelRatio<span class="type-signature"></span></a></h4>
<div class="description">
Device Pixel Ratio
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="fabric.js.html">fabric.js</a>, <a href="fabric.js.html#line145">line 145</a>
</li></ul></dd>
<dt class="tag-see">See:</dt>
<dd class="tag-see">
<ul>
<li><a href="https://developer.apple.com/library/safari/documentation/AudioVideo/Conceptual/HTML-canvas-guide/SettingUptheCanvas/SettingUptheCanvas.html">https://developer.apple.com/library/safari/documentation/AudioVideo/Conceptual/HTML-canvas-guide/SettingUptheCanvas/SettingUptheCanvas.html</a></li>
</ul>
</dd>
</dl>
<h4 class="name" id=".disableStyleCopyPaste"><a href="#.disableStyleCopyPaste" ><span class="type-signature">(static) </span>disableStyleCopyPaste<span class="type-signature"> :Boolean</span></a></h4>
<div class="description">
When 'true', style information is not retained when copy/pasting text, making
pasted text use destination style.
Defaults to 'false'.
</div>
<h5>Type:</h5>
<ul>
<li>
<span class="param-type">Boolean</span>
</li>
</ul>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="fabric.js.html">fabric.js</a>, <a href="fabric.js.html#line129">line 129</a>
</li></ul></dd>
</dl>
<h4 class="name" id=".DPI"><a href="#.DPI" ><span class="type-signature">(static) </span>DPI<span class="type-signature"></span></a></h4>
<div class="description">
Pixel per Inch as a default value set to 96. Can be changed for more realistic conversion.
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="fabric.js.html">fabric.js</a>, <a href="fabric.js.html#line75">line 75</a>
</li></ul></dd>
</dl>
<h4 class="name" id=".enableGLFiltering"><a href="#.enableGLFiltering" ><span class="type-signature">(static) </span>enableGLFiltering<span class="type-signature"> :Boolean</span></a></h4>
<div class="description">
Enable webgl for filtering picture is available
A filtering backend will be initialized, this will both take memory and
time since a default 2048x2048 canvas will be created for the gl context
</div>
<h5>Type:</h5>
<ul>
<li>
<span class="param-type">Boolean</span>
</li>
</ul>
<dl class="details">
<dt class="tag-since">Since:</dt>
<dd class="tag-since"><ul class="dummy"><li>2.0.0</li></ul></dd>
<dt class="tag-default">Default Value:</dt>
<dd class="tag-default"><ul class="dummy">
<li>true</li>
</ul></dd>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="fabric.js.html">fabric.js</a>, <a href="fabric.js.html#line139">line 139</a>
</li></ul></dd>
</dl>
<h4 class="name" id=".forceGLPutImageData"><a href="#.forceGLPutImageData" ><span class="type-signature">(static) </span>forceGLPutImageData<span class="type-signature"> :Boolean</span></a></h4>
<div class="description">
Skip performance testing of setupGLContext and force the use of putImageData that seems to be the one that works best on
Chrome + old hardware. if your users are experiencing empty images after filtering you may try to force this to true
this has to be set before instantiating the filtering backend ( before filtering the first image )
</div>
<h5>Type:</h5>
<ul>
<li>
<span class="param-type">Boolean</span>
</li>
</ul>
<dl class="details">
<dt class="tag-default">Default Value:</dt>
<dd class="tag-default"><ul class="dummy">
<li>false</li>
</ul></dd>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="fabric.js.html">fabric.js</a>, <a href="fabric.js.html#line194">line 194</a>
</li></ul></dd>
</dl>
<h4 class="name" id=".isLikelyNode"><a href="#.isLikelyNode" ><span class="type-signature">(static) </span>isLikelyNode<span class="type-signature"> :boolean</span></a></h4>
<div class="description">
True when in environment that's probably Node.js
</div>
<h5>Type:</h5>
<ul>
<li>
<span class="param-type">boolean</span>
</li>
</ul>
<dl class="details">