maxGraph/java/docs/com/mxgraph/canvas/mxImageCanvas.html

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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">com.mxgraph.canvas</a></div>
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<h2 title="Class mxImageCanvas" class="title">Class mxImageCanvas</h2>
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<ul class="inheritance">
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<li>java.lang.Object</li>
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<li>com.mxgraph.canvas.mxImageCanvas</li>
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<dt>All Implemented Interfaces:</dt>
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<dd><code><a href="mxICanvas.html" title="interface in com.mxgraph.canvas">mxICanvas</a></code></dd>
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<hr>
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<pre>public class <span class="typeNameLabel">mxImageCanvas</span>
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extends java.lang.Object
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implements <a href="mxICanvas.html" title="interface in com.mxgraph.canvas">mxICanvas</a></pre>
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<div class="block">An implementation of a canvas that uses Graphics2D for painting. To use an
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image canvas for an existing graphics canvas and create an image the
following code is used:
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<code>BufferedImage image = mxCellRenderer.createBufferedImage(graph, cells, 1, Color.white, true, null, canvas);</code></div>
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<h3>Field Summary</h3>
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<table class="memberSummary">
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<caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
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<th class="colSecond" scope="col">Field</th>
<th class="colLast" scope="col">Description</th>
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</tr>
<tr class="altColor">
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<td class="colFirst"><code>protected <a href="mxGraphics2DCanvas.html" title="class in com.mxgraph.canvas">mxGraphics2DCanvas</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#canvas">canvas</a></span></code></th>
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<td class="colLast">&nbsp;</td>
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</tr>
<tr class="rowColor">
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<td class="colFirst"><code>protected java.awt.image.BufferedImage</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#image">image</a></span></code></th>
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<td class="colLast">&nbsp;</td>
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</tr>
<tr class="altColor">
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<td class="colFirst"><code>protected java.awt.Graphics2D</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#previousGraphics">previousGraphics</a></span></code></th>
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<td class="colLast">&nbsp;</td>
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</tr>
</table>
</li>
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</section>
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<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<h3>Constructor Summary</h3>
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<table class="memberSummary">
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<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
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<th class="colFirst" scope="col">Constructor</th>
<th class="colLast" scope="col">Description</th>
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</tr>
<tr class="altColor">
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<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(com.mxgraph.canvas.mxGraphics2DCanvas,int,int,java.awt.Color,boolean)">mxImageCanvas</a></span>&#8203;(<a href="mxGraphics2DCanvas.html" title="class in com.mxgraph.canvas">mxGraphics2DCanvas</a>&nbsp;canvas,
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int&nbsp;width,
int&nbsp;height,
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java.awt.Color&nbsp;background,
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boolean&nbsp;antiAlias)</code></th>
<td class="colLast">&nbsp;</td>
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</tr>
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<tr class="rowColor">
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<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(com.mxgraph.canvas.mxGraphics2DCanvas,int,int,java.awt.Color,boolean,boolean)">mxImageCanvas</a></span>&#8203;(<a href="mxGraphics2DCanvas.html" title="class in com.mxgraph.canvas">mxGraphics2DCanvas</a>&nbsp;canvas,
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int&nbsp;width,
int&nbsp;height,
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java.awt.Color&nbsp;background,
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boolean&nbsp;antiAlias,
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boolean&nbsp;textAntiAlias)</code></th>
<td class="colLast">&nbsp;</td>
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</tr>
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</table>
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</section>
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<!-- ========== METHOD SUMMARY =========== -->
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<h3>Method Summary</h3>
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<table class="memberSummary">
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
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<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
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<th class="colSecond" scope="col">Method</th>
<th class="colLast" scope="col">Description</th>
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</tr>
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<tr id="i0" class="altColor">
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<td class="colFirst"><code>java.awt.image.BufferedImage</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#destroy()">destroy</a></span>()</code></th>
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<td class="colLast">&nbsp;</td>
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</tr>
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<tr id="i1" class="rowColor">
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<td class="colFirst"><code>java.lang.Object</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#drawCell(com.mxgraph.view.mxCellState)">drawCell</a></span>&#8203;(<a href="../view/mxCellState.html" title="class in com.mxgraph.view">mxCellState</a>&nbsp;state)</code></th>
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<td class="colLast">
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<div class="block">Draws the given cell.</div>
</td>
</tr>
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<tr id="i2" class="altColor">
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<td class="colFirst"><code>java.lang.Object</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#drawLabel(java.lang.String,com.mxgraph.view.mxCellState,boolean)">drawLabel</a></span>&#8203;(java.lang.String&nbsp;label,
<a href="../view/mxCellState.html" title="class in com.mxgraph.view">mxCellState</a>&nbsp;state,
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boolean&nbsp;html)</code></th>
<td class="colLast">
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<div class="block">Draws the given label.</div>
</td>
</tr>
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<tr id="i3" class="rowColor">
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<td class="colFirst"><code><a href="mxGraphics2DCanvas.html" title="class in com.mxgraph.canvas">mxGraphics2DCanvas</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getGraphicsCanvas()">getGraphicsCanvas</a></span>()</code></th>
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<td class="colLast">&nbsp;</td>
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</tr>
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<tr id="i4" class="altColor">
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<td class="colFirst"><code>java.awt.image.BufferedImage</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getImage()">getImage</a></span>()</code></th>
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<td class="colLast">&nbsp;</td>
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</tr>
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<tr id="i5" class="rowColor">
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<td class="colFirst"><code>double</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getScale()">getScale</a></span>()</code></th>
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<td class="colLast">
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<div class="block">Returns the scale.</div>
</td>
</tr>
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<tr id="i6" class="altColor">
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<td class="colFirst"><code><a href="../util/mxPoint.html" title="class in com.mxgraph.util">mxPoint</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getTranslate()">getTranslate</a></span>()</code></th>
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<td class="colLast">
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<div class="block">Returns the current translation.</div>
</td>
</tr>
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<tr id="i7" class="rowColor">
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<td class="colFirst"><code>void</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#setScale(double)">setScale</a></span>&#8203;(double&nbsp;scale)</code></th>
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<td class="colLast">
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<div class="block">Sets the scale for the following drawing requests.</div>
</td>
</tr>
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<tr id="i8" class="altColor">
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<td class="colFirst"><code>void</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#setTranslate(double,double)">setTranslate</a></span>&#8203;(double&nbsp;dx,
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double&nbsp;dy)</code></th>
<td class="colLast">
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<div class="block">Sets the translation for the following drawing requests.</div>
</td>
</tr>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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</ul>
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</ul>
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</section>
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<h3>Field Detail</h3>
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<a id="canvas">
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<h4>canvas</h4>
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<pre>protected&nbsp;<a href="mxGraphics2DCanvas.html" title="class in com.mxgraph.canvas">mxGraphics2DCanvas</a> canvas</pre>
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</li>
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<a id="previousGraphics">
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<h4>previousGraphics</h4>
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<pre>protected&nbsp;java.awt.Graphics2D previousGraphics</pre>
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<h4>image</h4>
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<pre>protected&nbsp;java.awt.image.BufferedImage image</pre>
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</li>
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</section>
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<a id="&lt;init&gt;(com.mxgraph.canvas.mxGraphics2DCanvas,int,int,java.awt.Color,boolean)">
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<h4>mxImageCanvas</h4>
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<pre>public&nbsp;mxImageCanvas&#8203;(<a href="mxGraphics2DCanvas.html" title="class in com.mxgraph.canvas">mxGraphics2DCanvas</a>&nbsp;canvas,
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int&nbsp;width,
int&nbsp;height,
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java.awt.Color&nbsp;background,
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boolean&nbsp;antiAlias)</pre>
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<a id="&lt;init&gt;(com.mxgraph.canvas.mxGraphics2DCanvas,int,int,java.awt.Color,boolean,boolean)">
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<h4>mxImageCanvas</h4>
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<pre>public&nbsp;mxImageCanvas&#8203;(<a href="mxGraphics2DCanvas.html" title="class in com.mxgraph.canvas">mxGraphics2DCanvas</a>&nbsp;canvas,
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int&nbsp;width,
int&nbsp;height,
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java.awt.Color&nbsp;background,
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boolean&nbsp;antiAlias,
boolean&nbsp;textAntiAlias)</pre>
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</section>
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<!-- ============ METHOD DETAIL ========== -->
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<h3>Method Detail</h3>
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<a id="getGraphicsCanvas()">
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<h4>getGraphicsCanvas</h4>
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<pre class="methodSignature">public&nbsp;<a href="mxGraphics2DCanvas.html" title="class in com.mxgraph.canvas">mxGraphics2DCanvas</a>&nbsp;getGraphicsCanvas()</pre>
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<h4>getImage</h4>
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<pre class="methodSignature">public&nbsp;java.awt.image.BufferedImage&nbsp;getImage()</pre>
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<a id="drawCell(com.mxgraph.view.mxCellState)">
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<h4>drawCell</h4>
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<pre class="methodSignature">public&nbsp;java.lang.Object&nbsp;drawCell&#8203;(<a href="../view/mxCellState.html" title="class in com.mxgraph.view">mxCellState</a>&nbsp;state)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="mxICanvas.html#drawCell(com.mxgraph.view.mxCellState)">mxICanvas</a></code></span></div>
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<div class="block">Draws the given cell.</div>
<dl>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
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<dd><code><a href="mxICanvas.html#drawCell(com.mxgraph.view.mxCellState)">drawCell</a></code>&nbsp;in interface&nbsp;<code><a href="mxICanvas.html" title="interface in com.mxgraph.canvas">mxICanvas</a></code></dd>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>state</code> - State of the cell to be painted.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Object that represents the cell.</dd>
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<h4>drawLabel</h4>
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<pre class="methodSignature">public&nbsp;java.lang.Object&nbsp;drawLabel&#8203;(java.lang.String&nbsp;label,
<a href="../view/mxCellState.html" title="class in com.mxgraph.view">mxCellState</a>&nbsp;state,
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boolean&nbsp;html)</pre>
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<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="mxICanvas.html#drawLabel(java.lang.String,com.mxgraph.view.mxCellState,boolean)">mxICanvas</a></code></span></div>
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<div class="block">Draws the given label.</div>
<dl>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
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<dd><code><a href="mxICanvas.html#drawLabel(java.lang.String,com.mxgraph.view.mxCellState,boolean)">drawLabel</a></code>&nbsp;in interface&nbsp;<code><a href="mxICanvas.html" title="interface in com.mxgraph.canvas">mxICanvas</a></code></dd>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>label</code> - String that represents the label.</dd>
<dd><code>state</code> - State of the cell whose label is to be painted.</dd>
<dd><code>html</code> - Specifies if the label contains HTML markup.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Object that represents the label.</dd>
</dl>
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<h4>getScale</h4>
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<pre class="methodSignature">public&nbsp;double&nbsp;getScale()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="mxICanvas.html#getScale()">mxICanvas</a></code></span></div>
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<div class="block">Returns the scale.</div>
<dl>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
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<dd><code><a href="mxICanvas.html#getScale()">getScale</a></code>&nbsp;in interface&nbsp;<code><a href="mxICanvas.html" title="interface in com.mxgraph.canvas">mxICanvas</a></code></dd>
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<h4>getTranslate</h4>
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<pre class="methodSignature">public&nbsp;<a href="../util/mxPoint.html" title="class in com.mxgraph.util">mxPoint</a>&nbsp;getTranslate()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="mxICanvas.html#getTranslate()">mxICanvas</a></code></span></div>
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<div class="block">Returns the current translation.</div>
<dl>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
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<dd><code><a href="mxICanvas.html#getTranslate()">getTranslate</a></code>&nbsp;in interface&nbsp;<code><a href="mxICanvas.html" title="interface in com.mxgraph.canvas">mxICanvas</a></code></dd>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>Returns the current translation.</dd>
</dl>
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<h4>setScale</h4>
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<pre class="methodSignature">public&nbsp;void&nbsp;setScale&#8203;(double&nbsp;scale)</pre>
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<div class="block">Sets the scale for the following drawing requests.</div>
<dl>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
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<dd><code><a href="mxICanvas.html#setScale(double)">setScale</a></code>&nbsp;in interface&nbsp;<code><a href="mxICanvas.html" title="interface in com.mxgraph.canvas">mxICanvas</a></code></dd>
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<pre class="methodSignature">public&nbsp;void&nbsp;setTranslate&#8203;(double&nbsp;dx,
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double&nbsp;dy)</pre>
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<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="mxICanvas.html#setTranslate(double,double)">mxICanvas</a></code></span></div>
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<div class="block">Sets the translation for the following drawing requests.</div>
<dl>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
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<dd><code><a href="mxICanvas.html#setTranslate(double,double)">setTranslate</a></code>&nbsp;in interface&nbsp;<code><a href="mxICanvas.html" title="interface in com.mxgraph.canvas">mxICanvas</a></code></dd>
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<h4>destroy</h4>
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<pre class="methodSignature">public&nbsp;java.awt.image.BufferedImage&nbsp;destroy()</pre>
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