Revision 742685 of DOMMatrix

<p>{{APIRef("Geometry Interfaces")}}{{SeeCompatTable}}</p>

<p>The <code><strong>DOMMatrix</strong></code> interface represents 4x4 matrices, suitable for 2D and 3D operations.</p>

<p>A 4x4 matrix is suitable to describe any rotation and translation in 3D.</p>

<p>This interface should be available inside Web workers, though some implementations don't allow it yet.</p>

<h2 id="Properties">Properties</h2>

<p><em>This interface inherits properties from {{domxref("DOMMatrixReadOnly")}}, though some are modified not to be read-only.</em></p>

<dl>
 <dt><code>m11</code>, <code>m12</code>, <code>m13</code>, <code>m14</code>, <code>m21</code>, <code>m22</code>, <code>m23</code>, <code>m2<code>4</code></code>, <code><code>m31</code></code>, <code><code>m32</code></code>, <code><code>m33</code></code>, <code><code>m34</code></code>, <code><code>m41</code></code>, <code><code>m42</code></code>, <code><code>m43</code></code>, <code><code>m44</code></code></dt>
 <dd>Are <code>double</code> representing each component of a 4x4 matrix.</dd>
 <dt><code>a</code>, <code>b</code>, <code>c</code>, <code>d</code>, <code>e</code>, <code>f</code> {{ReadOnlyInline}}</dt>
 <dd>Are <code>double</code> representing each component of a 4x4 matrix needed for 2D rotations and translations. They are aliases for some components of the 4x4 matrix:
 <table class="standard-table">
  <thead>
   <tr>
    <th scope="col">2D</th>
    <th scope="col">3D equivalent</th>
   </tr>
  </thead>
  <tbody>
   <tr>
    <td><code>a</code></td>
    <td><code>m11</code></td>
   </tr>
   <tr>
    <td><code>b</code></td>
    <td><code>m12</code></td>
   </tr>
   <tr>
    <td><code>c</code></td>
    <td><code>m21</code></td>
   </tr>
   <tr>
    <td><code>d</code></td>
    <td><code>m22</code></td>
   </tr>
   <tr>
    <td><code>e</code></td>
    <td><code>m41</code></td>
   </tr>
   <tr>
    <td><code>f</code></td>
    <td><code>m42</code></td>
   </tr>
  </tbody>
 </table>
 </dd>
</dl>

<h2 id="Methods">Methods</h2>

<p><em>This interface inherits methods from {{domxref("DOMMatrixReadOnly")}}.</em></p>

<dl>
 <dt>{{domxref("DOMMatrixReadOnly.multiplySelf()")}}</dt>
 <dd>Returns itself, a {{domxref("DOMMatrix")}},&nbsp; with its new content being the result of the original matrix being multiplied by the given {{domxref("DOMMatrix")}}.</dd>
 <dt>{{domxref("DOMMatrixReadOnly.preMultiplySelf()")}}</dt>
 <dd>Returns itself, a {{domxref("DOMMatrix")}},&nbsp; with its new content being the result of the given {{domxref("DOMMatrix")}} being multiplied by the original matrix.</dd>
 <dt>{{domxref("DOMMatrix.translateSelf()")}}</dt>
 <dd>Returns itself, a {{domxref("DOMMatrix")}}, with its new content being the result of the matrix being translated by the given vector.</dd>
 <dt>{{domxref("DOMMatrix.scaleSelf()")}}</dt>
 <dd>Returns itself, a {{domxref("DOMMatrix")}}, with its new content being the result of the matrix x and y dimensions being scaled by the given factor, centered on the origin given.</dd>
 <dt>{{domxref("DOMMatrix.scale3dSelf()")}}</dt>
 <dd>Returns itself, a {{domxref("DOMMatrix")}}, with its new content being the result of the matrix x, y and z dimension being scaled by the given factor, centered on the origin given.</dd>
 <dt>{{domxref("DOMMatrix.scaleNonUniformSelf()")}}</dt>
 <dd>Returns itself, a {{domxref("DOMMatrix")}}, with its new content being the result of the matrix x, y and z dimension being scaled by the given factor for each dimension, centered on the origin given.</dd>
 <dt>{{domxref("DOMMatrix.rotateSelf()")}}</dt>
 <dd>Returns itself, a {{domxref("DOMMatrix")}}, with its new content being the result of the original matrix being rotated by the given angle, with the rotation centered on the origin given.</dd>
 <dt>{{domxref("DOMMatrix.rotateFromVectorSelf()")}}</dt>
 <dd>Returns itself, a {{domxref("DOMMatrix")}}, with its new content being the result of the original matrix being rotated by the angle between the given vector and (1,0), centered on the origin given.</dd>
 <dt>{{domxref("DOMMatrix.rotateAxisAngleSelf()")}}</dt>
 <dd>Returns itself, a {{domxref("DOMMatrix")}}, with its new content being the result of the original matrix being rotated by the given angle and the give vector.</dd>
 <dt>{{domxref("DOMMatrix.skewXSelf()")}}</dt>
 <dd>Returns itself, a {{domxref("DOMMatrix")}}, with its new content being the result of the original matrix being skewed along the x-axis by the given factor.</dd>
 <dt>{{domxref("DOMMatrix.skewYSelf()")}}</dt>
 <dd>Returns itself, a {{domxref("DOMMatrix")}}, with its new content being the result of the original matrix being skewed along the y-axis by the given factor.</dd>
 <dt>{{domxref("DOMMatrix.invertSelf()")}}</dt>
 <dd>Returns itself,&nbsp; a {{domxref("DOMMatrix")}}, with its new content being the result of the original matrix being inverted. If the matrix cannot be inverted, all its components are set to <code>NaN</code> and <code>is2D()</code> returns <code>false</code>.</dd>
 <dt>{{domxref("DOMMatrix.setMatrixValue()")}}</dt>
 <dd>Returns itself, a {{domxref("DOMMatrix")}}, with its describing the matrix representing the same transformation as the CSS {{domxref("transform")}} functions given in parameter.</dd>
</dl>

<h2 id="Specifications">Specifications</h2>

<table class="standard-table">
 <tbody>
  <tr>
   <th scope="col">Specification</th>
   <th scope="col">Status</th>
   <th scope="col">Comment</th>
  </tr>
  <tr>
   <td>{{ SpecName('Geometry Interfaces', '#dom-dommatrix', 'DOMMatrix') }}</td>
   <td>{{ Spec2('Geometry Interfaces') }}</td>
   <td>Initial definition</td>
  </tr>
 </tbody>
</table>

<h2 id="Browser_compatibility">Browser compatibility</h2>

<p>{{CompatibilityTable}}</p>

<div id="compat-desktop">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Firefox (Gecko)</th>
   <th>Chrome</th>
   <th>Internet Explorer</th>
   <th>Opera</th>
   <th>Safari</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>{{CompatGeckoDesktop(33)}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatNo}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatNo}}</td>
  </tr>
  <tr>
   <td>Availability on Web workers</td>
   <td>{{CompatNo}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatNo}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatNo}}</td>
  </tr>
 </tbody>
</table>
</div>

<div id="compat-mobile">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Firefox Mobile (Gecko)</th>
   <th>Android</th>
   <th>IE Mobile</th>
   <th>Opera Mobile</th>
   <th>Safari Mobile</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>{{CompatGeckoMobile(33)}}</td>
   <td rowspan="1">{{CompatUnknown}}</td>
   <td rowspan="1">{{CompatNo}}</td>
   <td rowspan="1">{{CompatUnknown}}</td>
   <td rowspan="1">{{CompatNo}}</td>
  </tr>
  <tr>
   <td>Availability on Web workers</td>
   <td>{{CompatNo}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatNo}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatNo}}</td>
  </tr>
 </tbody>
</table>
</div>

<h2 id="See_also">See also</h2>

<ul>
 <li>Its non-modifiable part, {{domxref("DOMMatrixReadOnly")}}</li>
 <li>{{domxref("SVGMatrix")}}, the SVG matrix intended to be superseded by {{domxref("DOMMatrix")}}</li>
</ul>

<p>&nbsp;</p>