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<title>Matrix</title>
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<h1>Matrix</h1>
<p>An affine transform performs a linear mapping from 2D coordinates
to other 2D coordinates that preserves the "straightness" and
"parallelness" of lines.</p>
<p>Such a coordinate transformation can be represented by a 3 row by 3
column matrix with an implied last row of [ 0 0 1 ]. This matrix
transforms source coordinates (x,y) into destination coordinates (x',y')
by considering them to be a column vector and multiplying the coordinate
vector by the matrix according to the following process:</p>
<pre class="code">
[ x ] [ a b tx ] [ x ] [ a * x + b * y + tx ]
[ y ] = [ c d ty ] [ y ] = [ c * x + d * y + ty ]
[ 1 ] [ 0 0 1 ] [ 1 ] [ 1 ]
</pre>
<p>This class is optimized for speed and minimizes calculations based on its
knowledge of the underlying matrix (as opposed to say simply performing
matrix multiplication).</p>
</div>
<!-- ============================== constructors ========================= -->
<div class="reference-members"><h2>Constructors</h2>
<div id="matrix-a-c-b-d-tx-ty" class="member">
<div class="member-link">
<a name="matrix-a-c-b-d-tx-ty" href="#matrix-a-c-b-d-tx-ty"><tt><b>Matrix</b>(a, c, b, d, tx, ty)</tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>Creates a 2D affine transform.</p>
<ul><b>Parameters:</b>
<li>
<tt>a:</tt>
<tt>Number</tt>
— the a property of the transform
</li>
<li>
<tt>c:</tt>
<tt>Number</tt>
— the c property of the transform
</li>
<li>
<tt>b:</tt>
<tt>Number</tt>
— the b property of the transform
</li>
<li>
<tt>d:</tt>
<tt>Number</tt>
— the d property of the transform
</li>
<li>
<tt>tx:</tt>
<tt>Number</tt>
— the tx property of the transform
</li>
<li>
<tt>ty:</tt>
<tt>Number</tt>
— the ty property of the transform
</li>
</ul>
</div>
</div>
</div>
</div>
<div class="reference-members"><h2>Properties</h2>
<div id="a" class="member">
<div class="member-link">
<a name="a" href="#a"><tt><b>a</b></tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>The value that affects the transformation along the x axis when scaling
or rotating, positioned at (0, 0) in the transformation matrix.</p>
<ul><b>Type:</b>
<li>
<tt>Number</tt>
</li>
</ul>
</div>
</div>
</div>
<div id="c" class="member">
<div class="member-link">
<a name="c" href="#c"><tt><b>c</b></tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>The value that affects the transformation along the y axis when rotating
or skewing, positioned at (1, 0) in the transformation matrix.</p>
<ul><b>Type:</b>
<li>
<tt>Number</tt>
</li>
</ul>
</div>
</div>
</div>
<div id="b" class="member">
<div class="member-link">
<a name="b" href="#b"><tt><b>b</b></tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>The value that affects the transformation along the x axis when rotating
or skewing, positioned at (0, 1) in the transformation matrix.</p>
<ul><b>Type:</b>
<li>
<tt>Number</tt>
</li>
</ul>
</div>
</div>
</div>
<div id="d" class="member">
<div class="member-link">
<a name="d" href="#d"><tt><b>d</b></tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>The value that affects the transformation along the y axis when scaling
or rotating, positioned at (1, 1) in the transformation matrix.</p>
<ul><b>Type:</b>
<li>
<tt>Number</tt>
</li>
</ul>
</div>
</div>
</div>
<div id="tx" class="member">
<div class="member-link">
<a name="tx" href="#tx"><tt><b>tx</b></tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>The distance by which to translate along the x axis, positioned at (2, 0)
in the transformation matrix.</p>
<ul><b>Type:</b>
<li>
<tt>Number</tt>
</li>
</ul>
</div>
</div>
</div>
<div id="ty" class="member">
<div class="member-link">
<a name="ty" href="#ty"><tt><b>ty</b></tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>The distance by which to translate along the y axis, positioned at (2, 1)
in the transformation matrix.</p>
<ul><b>Type:</b>
<li>
<tt>Number</tt>
</li>
</ul>
</div>
</div>
</div>
<div id="values" class="member">
<div class="member-link">
<a name="values" href="#values"><tt><b>values</b></tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>The transform values as an array, in the same sequence as they are passed
to {@link #initialize(a, c, b, d, tx, ty)}.</p>
<p>Read only.</p>
<ul><b>Type:</b>
<li>
<tt>Number</tt>
</li>
</ul>
</div>
</div>
</div>
<div id="translation" class="member">
<div class="member-link">
<a name="translation" href="#translation"><tt><b>translation</b></tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>The translation of the matrix as a vector.</p>
<p>Read only.</p>
<ul><b>Type:</b>
<li>
<a href="../classes/Point.html"><tt>Point</tt></a>
</li>
</ul>
</div>
</div>
</div>
<div id="scaling" class="member">
<div class="member-link">
<a name="scaling" href="#scaling"><tt><b>scaling</b></tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>The scaling values of the matrix, if it can be decomposed.</p>
<p>Read only.</p>
<ul><b>Type:</b>
<li>
<a href="../classes/Point.html"><tt>Point</tt></a>
</li>
</ul>
<p><b>See also:</b>
<tt><a href="../classes/Matrix.html#decompose" onclick="return toggleMember('decompose', true);"><tt>decompose</tt></a>()</tt>
</p>
</div>
</div>
</div>
<div id="rotation" class="member">
<div class="member-link">
<a name="rotation" href="#rotation"><tt><b>rotation</b></tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>The rotation angle of the matrix, if it can be decomposed.</p>
<p>Read only.</p>
<ul><b>Type:</b>
<li>
<tt>Number</tt>
</li>
</ul>
<p><b>See also:</b>
<tt><a href="../classes/Matrix.html#decompose" onclick="return toggleMember('decompose', true);"><tt>decompose</tt></a>()</tt>
</p>
</div>
</div>
</div>
</div>
<!-- ============================== methods ================================ -->
<div class="reference-members"><h2>Methods</h2>
<div id="set-a-c-b-d-tx-ty-_dontNotify" class="member">
<div class="member-link">
<a name="set-a-c-b-d-tx-ty-_dontNotify" href="#set-a-c-b-d-tx-ty-_dontNotify"><tt><b>set</b>(a, c, b, d, tx, ty)</tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>Sets this transform to the matrix specified by the 6 values.</p>
<ul><b>Parameters:</b>
<li>
<tt>a:</tt>
<tt>Number</tt>
— the a property of the transform
</li>
<li>
<tt>c:</tt>
<tt>Number</tt>
— the c property of the transform
</li>
<li>
<tt>b:</tt>
<tt>Number</tt>
— the b property of the transform
</li>
<li>
<tt>d:</tt>
<tt>Number</tt>
— the d property of the transform
</li>
<li>
<tt>tx:</tt>
<tt>Number</tt>
— the tx property of the transform
</li>
<li>
<tt>ty:</tt>
<tt>Number</tt>
— the ty property of the transform
</li>
</ul>
<ul><b>Returns:</b>
<li>
<tt><a href="../classes/Matrix.html"><tt>Matrix</tt></a></tt> — this affine transform
</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>
</div>
<div class="member-description hidden">
<div class="member-text">
<ul><b>Returns:</b>
<li>
<tt><a href="../classes/Matrix.html"><tt>Matrix</tt></a></tt> — a copy of this transform
</li>
</ul>
</div>
</div>
</div>
<div id="equals-matrix" class="member">
<div class="member-link">
<a name="equals-matrix" href="#equals-matrix"><tt><b>equals</b>(matrix)</tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>Checks whether the two matrices describe the same transformation.</p>
<ul><b>Parameters:</b>
<li>
<tt>matrix:</tt>
<a href="../classes/Matrix.html"><tt>Matrix</tt></a>
— the matrix to compare this matrix to
</li>
</ul>
<ul><b>Returns:</b>
<li>
<tt><tt>Boolean</tt></tt> — <tt>true</tt> if the matrices are equal, <tt>false</tt> otherwise
</li>
</ul>
</div>
</div>
</div>
<div id="tostring" class="member">
<div class="member-link">
<a name="tostring" href="#tostring"><tt><b>toString</b>()</tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<ul><b>Returns:</b>
<li>
<tt><tt>String</tt></tt> — a string representation of this transform
</li>
</ul>
</div>
</div>
</div>
<div id="reset-_dontNotify" class="member">
<div class="member-link">
<a name="reset-_dontNotify" href="#reset-_dontNotify"><tt><b>reset</b>()</tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>Resets the matrix by setting its values to the ones of the identity
matrix that results in no transformation.</p>
</div>
</div>
</div>
<div id="apply" class="member">
<div class="member-link">
<a name="apply" href="#apply"><tt><b>apply</b>()</tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>Applies the matrix to the item that it belongs to, if possible.</p>
<ul><b>Returns:</b>
<li>
<tt><tt>Boolean</tt></tt> — <tt>true</tt> if the matrix was applied, <tt>false</tt> otherwise
</li>
</ul>
</div>
</div>
</div>
<div id="translate-point" class="member">
<div class="member-link">
<a name="translate-point" href="#translate-point"><tt><b>translate</b>(point)</tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>Concatenates this transform with a translate transformation.</p>
<ul><b>Parameters:</b>
<li>
<tt>point:</tt>
<a href="../classes/Point.html"><tt>Point</tt></a>
— the vector to translate by
</li>
</ul>
<ul><b>Returns:</b>
<li>
<tt><a href="../classes/Matrix.html"><tt>Matrix</tt></a></tt> — this affine transform
</li>
</ul>
</div>
</div>
</div>
<div id="translate-dx-dy" class="member">
<div class="member-link">
<a name="translate-dx-dy" href="#translate-dx-dy"><tt><b>translate</b>(dx, dy)</tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>Concatenates this transform with a translate transformation.</p>
<ul><b>Parameters:</b>
<li>
<tt>dx:</tt>
<tt>Number</tt>
— the distance to translate in the x direction
</li>
<li>
<tt>dy:</tt>
<tt>Number</tt>
— the distance to translate in the y direction
</li>
</ul>
<ul><b>Returns:</b>
<li>
<tt><a href="../classes/Matrix.html"><tt>Matrix</tt></a></tt> — this affine transform
</li>
</ul>
</div>
</div>
</div>
<div id="scale-scale" class="member">
<div class="member-link">
<a name="scale-scale" href="#scale-scale"><tt><b>scale</b>(scale[, center])</tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>Concatenates this transform with a scaling transformation.</p>
<ul><b>Parameters:</b>
<li>
<tt>scale:</tt>
<tt>Number</tt>
— the scaling factor
</li>
<li>
<tt>center:</tt>
<a href="../classes/Point.html"><tt>Point</tt></a>
— the center for the scaling transformation
— optional
</li>
</ul>
<ul><b>Returns:</b>
<li>
<tt><a href="../classes/Matrix.html"><tt>Matrix</tt></a></tt> — this affine transform
</li>
</ul>
</div>
</div>
</div>
<div id="scale-hor-ver" class="member">
<div class="member-link">
<a name="scale-hor-ver" href="#scale-hor-ver"><tt><b>scale</b>(hor, ver[, center])</tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>Concatenates this transform with a scaling transformation.</p>
<ul><b>Parameters:</b>
<li>
<tt>hor:</tt>
<tt>Number</tt>
— the horizontal scaling factor
</li>
<li>
<tt>ver:</tt>
<tt>Number</tt>
— the vertical scaling factor
</li>
<li>
<tt>center:</tt>
<a href="../classes/Point.html"><tt>Point</tt></a>
— the center for the scaling transformation
— optional
</li>
</ul>
<ul><b>Returns:</b>
<li>
<tt><a href="../classes/Matrix.html"><tt>Matrix</tt></a></tt> — this affine transform
</li>
</ul>
</div>
</div>
</div>
<div id="rotate-angle-center" class="member">
<div class="member-link">
<a name="rotate-angle-center" href="#rotate-angle-center"><tt><b>rotate</b>(angle, center)</tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>Concatenates this transform with a rotation transformation around an
anchor point.</p>
<ul><b>Parameters:</b>
<li>
<tt>angle:</tt>
<tt>Number</tt>
— the angle of rotation measured in degrees
</li>
<li>
<tt>center:</tt>
<a href="../classes/Point.html"><tt>Point</tt></a>
— the anchor point to rotate around
</li>
</ul>
<ul><b>Returns:</b>
<li>
<tt><a href="../classes/Matrix.html"><tt>Matrix</tt></a></tt> — this affine transform
</li>
</ul>
</div>
</div>
</div>
<div id="rotate-angle-x-y" class="member">
<div class="member-link">
<a name="rotate-angle-x-y" href="#rotate-angle-x-y"><tt><b>rotate</b>(angle, x, y)</tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>Concatenates this transform with a rotation transformation around an
anchor point.</p>
<ul><b>Parameters:</b>
<li>
<tt>angle:</tt>
<tt>Number</tt>
— the angle of rotation measured in degrees
</li>
<li>
<tt>x:</tt>
<tt>Number</tt>
— the x coordinate of the anchor point
</li>
<li>
<tt>y:</tt>
<tt>Number</tt>
— the y coordinate of the anchor point
</li>
</ul>
<ul><b>Returns:</b>
<li>
<tt><a href="../classes/Matrix.html"><tt>Matrix</tt></a></tt> — this affine transform
</li>
</ul>
</div>
</div>
</div>
<div id="shear-shear" class="member">
<div class="member-link">
<a name="shear-shear" href="#shear-shear"><tt><b>shear</b>(shear[, center])</tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>Concatenates this transform with a shear transformation.</p>
<ul><b>Parameters:</b>
<li>
<tt>shear:</tt>
<a href="../classes/Point.html"><tt>Point</tt></a>
— the shear factor in x and y direction
</li>
<li>
<tt>center:</tt>
<a href="../classes/Point.html"><tt>Point</tt></a>
— the center for the shear transformation
— optional
</li>
</ul>
<ul><b>Returns:</b>
<li>
<tt><a href="../classes/Matrix.html"><tt>Matrix</tt></a></tt> — this affine transform
</li>
</ul>
</div>
</div>
</div>
<div id="shear-hor-ver" class="member">
<div class="member-link">
<a name="shear-hor-ver" href="#shear-hor-ver"><tt><b>shear</b>(hor, ver[, center])</tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>Concatenates this transform with a shear transformation.</p>
<ul><b>Parameters:</b>
<li>
<tt>hor:</tt>
<tt>Number</tt>
— the horizontal shear factor
</li>
<li>
<tt>ver:</tt>
<tt>Number</tt>
— the vertical shear factor
</li>
<li>
<tt>center:</tt>
<a href="../classes/Point.html"><tt>Point</tt></a>
— the center for the shear transformation
— optional
</li>
</ul>
<ul><b>Returns:</b>
<li>
<tt><a href="../classes/Matrix.html"><tt>Matrix</tt></a></tt> — this affine transform
</li>
</ul>
</div>
</div>
</div>
<div id="skew-skew" class="member">
<div class="member-link">
<a name="skew-skew" href="#skew-skew"><tt><b>skew</b>(skew[, center])</tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>Concatenates this transform with a skew transformation.</p>
<ul><b>Parameters:</b>
<li>
<tt>skew:</tt>
<a href="../classes/Point.html"><tt>Point</tt></a>
— the skew angles in x and y direction in degrees
</li>
<li>
<tt>center:</tt>
<a href="../classes/Point.html"><tt>Point</tt></a>
— the center for the skew transformation
— optional
</li>
</ul>
<ul><b>Returns:</b>
<li>
<tt><a href="../classes/Matrix.html"><tt>Matrix</tt></a></tt> — this affine transform
</li>
</ul>
</div>
</div>
</div>
<div id="skew-hor-ver" class="member">
<div class="member-link">
<a name="skew-hor-ver" href="#skew-hor-ver"><tt><b>skew</b>(hor, ver[, center])</tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>Concatenates this transform with a skew transformation.</p>
<ul><b>Parameters:</b>
<li>
<tt>hor:</tt>
<tt>Number</tt>
— the horizontal skew angle in degrees
</li>
<li>
<tt>ver:</tt>
<tt>Number</tt>
— the vertical skew angle in degrees
</li>
<li>
<tt>center:</tt>
<a href="../classes/Point.html"><tt>Point</tt></a>
— the center for the skew transformation
— optional
</li>
</ul>
<ul><b>Returns:</b>
<li>
<tt><a href="../classes/Matrix.html"><tt>Matrix</tt></a></tt> — this affine transform
</li>
</ul>
</div>
</div>
</div>
<div id="concatenate-mx" class="member">
<div class="member-link">
<a name="concatenate-mx" href="#concatenate-mx"><tt><b>concatenate</b>(mx)</tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>Concatenates an affine transform to this transform.</p>
<ul><b>Parameters:</b>
<li>
<tt>mx:</tt>
<a href="../classes/Matrix.html"><tt>Matrix</tt></a>
— the transform to concatenate
</li>
</ul>
<ul><b>Returns:</b>
<li>
<tt><a href="../classes/Matrix.html"><tt>Matrix</tt></a></tt> — this affine transform
</li>
</ul>
</div>
</div>
</div>
<div id="preconcatenate-mx" class="member">
<div class="member-link">
<a name="preconcatenate-mx" href="#preconcatenate-mx"><tt><b>preConcatenate</b>(mx)</tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>Pre-concatenates an affine transform to this transform.</p>
<ul><b>Parameters:</b>
<li>
<tt>mx:</tt>
<a href="../classes/Matrix.html"><tt>Matrix</tt></a>
— the transform to preconcatenate
</li>
</ul>
<ul><b>Returns:</b>
<li>
<tt><a href="../classes/Matrix.html"><tt>Matrix</tt></a></tt> — this affine transform
</li>
</ul>
</div>
</div>
</div>
<div id="isidentity" class="member">
<div class="member-link">
<a name="isidentity" href="#isidentity"><tt><b>isIdentity</b>()</tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<ul><b>Returns:</b>
<li>
<tt><tt>Boolean</tt></tt> — whether this transform is the identity transform
</li>
</ul>
</div>
</div>
</div>
<div id="isinvertible" class="member">
<div class="member-link">
<a name="isinvertible" href="#isinvertible"><tt><b>isInvertible</b>()</tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>Returns whether the transform is invertible. A transform is not
invertible if the determinant is 0 or any value is non-finite or NaN.</p>
<ul><b>Returns:</b>
<li>
<tt><tt>Boolean</tt></tt> — whether the transform is invertible
</li>
</ul>
</div>
</div>
</div>
<div id="issingular" class="member">
<div class="member-link">
<a name="issingular" href="#issingular"><tt><b>isSingular</b>()</tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>Checks whether the matrix is singular or not. Singular matrices cannot be
inverted.</p>
<ul><b>Returns:</b>
<li>
<tt><tt>Boolean</tt></tt> — whether the matrix is singular
</li>
</ul>
</div>
</div>
</div>
<div id="transform-point" class="member">
<div class="member-link">
<a name="transform-point" href="#transform-point"><tt><b>transform</b>(point)</tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>Transforms a point and returns the result.</p>
<ul><b>Parameters:</b>
<li>
<tt>point:</tt>
<a href="../classes/Point.html"><tt>Point</tt></a>
— the point to be transformed
</li>
</ul>
<ul><b>Returns:</b>
<li>
<tt><a href="../classes/Point.html"><tt>Point</tt></a></tt> — the transformed point
</li>
</ul>
</div>
</div>
</div>
<div id="transform-src-srcOffset-dst-dstOffset-count" class="member">
<div class="member-link">
<a name="transform-src-srcOffset-dst-dstOffset-count" href="#transform-src-srcOffset-dst-dstOffset-count"><tt><b>transform</b>(src, srcOffset, dst, dstOffset, count)</tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>Transforms an array of coordinates by this matrix and stores the results
into the destination array, which is also returned.</p>
<ul><b>Parameters:</b>
<li>
<tt>src:</tt>
<tt>Number</tt>
— the array containing the source points
as x, y value pairs
</li>
<li>
<tt>srcOffset:</tt>
<tt>Number</tt>
— the offset to the first point to be transformed
</li>
<li>
<tt>dst:</tt>
<tt>Number</tt>
— the array into which to store the transformed
point pairs
</li>
<li>
<tt>dstOffset:</tt>
<tt>Number</tt>
— the offset of the location of the first
transformed point in the destination array
</li>
<li>
<tt>count:</tt>
<tt>Number</tt>
— the number of points to tranform
</li>
</ul>
<ul><b>Returns:</b>
<li>
<tt><tt>Number</tt></tt> — the dst array, containing the transformed coordinates.
</li>
</ul>
</div>
</div>
</div>
<div id="inversetransform-point" class="member">
<div class="member-link">
<a name="inversetransform-point" href="#inversetransform-point"><tt><b>inverseTransform</b>(point)</tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>Inverse transforms a point and returns the result.</p>
<ul><b>Parameters:</b>
<li>
<tt>point:</tt>
<a href="../classes/Point.html"><tt>Point</tt></a>
— the point to be transformed
</li>
</ul>
</div>
</div>
</div>
<div id="decompose" class="member">
<div class="member-link">
<a name="decompose" href="#decompose"><tt><b>decompose</b>()</tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>Attempts to decompose the affine transformation described by this matrix
into <tt>scaling</tt>, <tt>rotation</tt> and <tt>shearing</tt>, and returns
an object with these properties if it succeeded, <tt>null</tt> otherwise.</p>
<ul><b>Returns:</b>
<li>
<tt><tt>Object</tt></tt> — the decomposed matrix, or <tt>null</tt> if decomposition
is not possible.
</li>
</ul>
</div>
</div>
</div>
<div id="inverted" class="member">
<div class="member-link">
<a name="inverted" href="#inverted"><tt><b>inverted</b>()</tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>Inverts the transformation of the matrix. If the matrix is not invertible
(in which case <a href="../classes/Matrix.html#issingular" onclick="return toggleMember('issingular', true);"><tt>isSingular</tt></a>() returns true), <tt>null </tt> is
returned.</p>
<ul><b>Returns:</b>
<li>
<tt><a href="../classes/Matrix.html"><tt>Matrix</tt></a></tt> — the inverted matrix, or <tt>null </tt>, if the matrix is
singular
</li>
</ul>
</div>
</div>
</div>
<div id="applytocontext-ctx" class="member">
<div class="member-link">
<a name="applytocontext-ctx" href="#applytocontext-ctx"><tt><b>applyToContext</b>(ctx)</tt></a>
</div>
<div class="member-description hidden">
<div class="member-text">
<p>Applies this matrix to the specified Canvas Context.</p>
<ul><b>Parameters:</b>
<li>
<tt>ctx:</tt>
<tt>CanvasRenderingContext2D</tt>
</li>
</ul>
</div>
</div>
</div>
</div>
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