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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">com.mxgraph.shape</a></div>
<h2 title="Class mxCurveLabelShape" class="title">Class mxCurveLabelShape</h2>
</div>
<div class="contentContainer">
<ul class="inheritance">
<li>java.lang.Object</li>
<li>
<ul class="inheritance">
<li>com.mxgraph.shape.mxCurveLabelShape</li>
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<dt>All Implemented Interfaces:</dt>
<dd><code><a href="mxITextShape.html" title="interface in com.mxgraph.shape">mxITextShape</a></code></dd>
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<hr>
<pre>public class <span class="typeNameLabel">mxCurveLabelShape</span>
extends java.lang.Object
implements <a href="mxITextShape.html" title="interface in com.mxgraph.shape">mxITextShape</a></pre>
<div class="block">Draws the edge label along a curve derived from the curve describing
the edge's path</div>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Class</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="mxCurveLabelShape.LabelGlyphCache.html" title="class in com.mxgraph.shape">mxCurveLabelShape.LabelGlyphCache</a></span></code></th>
<td class="colLast">
<div class="block">Utility class to describe the characteristics of each glyph of a branch
branch label.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="mxCurveLabelShape.LabelPosition.html" title="class in com.mxgraph.shape">mxCurveLabelShape.LabelPosition</a></span></code></th>
<td class="colLast">
<div class="block">Utility class that stores details of how the label is positioned
on the curve</div>
</td>
</tr>
</table>
</li>
</ul>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Field</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#centerVisibleIndex">centerVisibleIndex</a></span></code></th>
<td class="colLast">
<div class="block">The index of the central glyph of the label that is visible</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="../util/mxCurve.html" title="class in com.mxgraph.util">mxCurve</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#curve">curve</a></span></code></th>
<td class="colLast">
<div class="block">Cache of the points between which drawing straight lines views as a
curve</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static double</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#CURVE_TEXT_STRETCH_FACTOR">CURVE_TEXT_STRETCH_FACTOR</a></span></code></th>
<td class="colLast">
<div class="block">Factor by which text on the inside of curve is stretched</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static java.lang.Object</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#FONT_FRACTIONALMETRICS">FONT_FRACTIONALMETRICS</a></span></code></th>
<td class="colLast">
<div class="block">Specifies if image aspect should be preserved in drawImage.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static java.awt.font.FontRenderContext</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#frc">frc</a></span></code></th>
<td class="colLast">
<div class="block">Shared FRC for font size calculations</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="../util/mxRectangle.html" title="class in com.mxgraph.util">mxRectangle</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#INVALID_GLYPH_BOUNDS">INVALID_GLYPH_BOUNDS</a></span></code></th>
<td class="colLast">
<div class="block">Indicates that a glyph does not have valid drawing bounds, usually
because it is not visible</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static double</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#LABEL_BUFFER">LABEL_BUFFER</a></span></code></th>
<td class="colLast">
<div class="block">Buffer at both ends of the label</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="../util/mxRectangle.html" title="class in com.mxgraph.util">mxRectangle</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#labelBounds">labelBounds</a></span></code></th>
<td class="colLast">
<div class="block">Cache of the bounds of the label</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="mxCurveLabelShape.LabelGlyphCache.html" title="class in com.mxgraph.shape">mxCurveLabelShape.LabelGlyphCache</a>[]</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#labelGlyphs">labelGlyphs</a></span></code></th>
<td class="colLast">
<div class="block">Cache of information describing characteristics relating to drawing
each glyph of this label</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="mxCurveLabelShape.LabelPosition.html" title="class in com.mxgraph.shape">mxCurveLabelShape.LabelPosition</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#labelPosition">labelPosition</a></span></code></th>
<td class="colLast">
<div class="block">ADT to encapsulate label positioning information</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected double</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#labelSize">labelSize</a></span></code></th>
<td class="colLast">
<div class="block">Cache of the total length of the branch label</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected java.awt.Font</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#lastFont">lastFont</a></span></code></th>
<td class="colLast">
<div class="block">Cache of the label font</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected java.util.List&lt;<a href="../util/mxPoint.html" title="class in com.mxgraph.util">mxPoint</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#lastPoints">lastPoints</a></span></code></th>
<td class="colLast">
<div class="block">Cache of the last set of guide points that this label was calculated for</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#lastValue">lastValue</a></span></code></th>
<td class="colLast">
<div class="block">Cache of the label text</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#rotationEnabled">rotationEnabled</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>java.awt.font.GlyphVector[]</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#rtlGlyphVectors">rtlGlyphVectors</a></span></code></th>
<td class="colLast">
<div class="block">Cache of BIDI glyph vectors</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="../view/mxCellState.html" title="class in com.mxgraph.view">mxCellState</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#state">state</a></span></code></th>
<td class="colLast">
<div class="block">Cache the state associated with this shape</div>
</td>
</tr>
</table>
</li>
</ul>
</section>
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<h3>Constructor Summary</h3>
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<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colFirst" scope="col">Constructor</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr class="altColor">
<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(com.mxgraph.view.mxCellState,com.mxgraph.util.mxCurve)">mxCurveLabelShape</a></span>&#8203;(<a href="../view/mxCellState.html" title="class in com.mxgraph.view">mxCellState</a>&nbsp;state,
<a href="../util/mxCurve.html" title="class in com.mxgraph.util">mxCurve</a>&nbsp;value)</code></th>
<td class="colLast">&nbsp;</td>
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<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Method</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#calculationLabelPosition(java.util.Map,java.lang.String)">calculationLabelPosition</a></span>&#8203;(java.util.Map&lt;java.lang.String,&#8203;java.lang.Object&gt;&nbsp;style,
java.lang.String&nbsp;label)</code></th>
<td class="colLast">
<div class="block">Hook method to override how the label is positioned on the curve</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="../util/mxRectangle.html" title="class in com.mxgraph.util">mxRectangle</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getCenterVisiblePosition()">getCenterVisiblePosition</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns the drawing bounds of the central indexed visible glyph</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code><a href="../util/mxCurve.html" title="class in com.mxgraph.util">mxCurve</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getCurve()">getCurve</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code><a href="../util/mxRectangle.html" title="class in com.mxgraph.util">mxRectangle</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getLabelBounds()">getLabelBounds</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getRotationEnabled()">getRotationEnabled</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#intersectsRect(java.awt.Rectangle)">intersectsRect</a></span>&#8203;(java.awt.Rectangle&nbsp;rect)</code></th>
<td class="colLast">
<div class="block">Returns whether or not the rectangle passed in hits any part of this
curve.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#paintShape(com.mxgraph.canvas.mxGraphics2DCanvas,java.lang.String,com.mxgraph.view.mxCellState,java.util.Map)">paintShape</a></span>&#8203;(<a href="../canvas/mxGraphics2DCanvas.html" title="class in com.mxgraph.canvas">mxGraphics2DCanvas</a>&nbsp;canvas,
java.lang.String&nbsp;text,
<a href="../view/mxCellState.html" title="class in com.mxgraph.view">mxCellState</a>&nbsp;state,
java.util.Map&lt;java.lang.String,&#8203;java.lang.Object&gt;&nbsp;style)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#postprocessGlyph(com.mxgraph.util.mxCurve,java.lang.String,int,double)">postprocessGlyph</a></span>&#8203;(<a href="../util/mxCurve.html" title="class in com.mxgraph.util">mxCurve</a>&nbsp;curve,
java.lang.String&nbsp;label,
int&nbsp;j,
double&nbsp;currentPos)</code></th>
<td class="colLast">
<div class="block">Hook for sub-classers to perform additional processing on
each glyph</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#setCurve(com.mxgraph.util.mxCurve)">setCurve</a></span>&#8203;(<a href="../util/mxCurve.html" title="class in com.mxgraph.util">mxCurve</a>&nbsp;curve)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#setRotationEnabled(boolean)">setRotationEnabled</a></span>&#8203;(boolean&nbsp;value)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code><a href="../util/mxRectangle.html" title="class in com.mxgraph.util">mxRectangle</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#updateLabelBounds(java.lang.String,java.util.Map)">updateLabelBounds</a></span>&#8203;(java.lang.String&nbsp;label,
java.util.Map&lt;java.lang.String,&#8203;java.lang.Object&gt;&nbsp;style)</code></th>
<td class="colLast">
<div class="block">Updates the cached position and size of each glyph in the edge label.</div>
</td>
</tr>
</table>
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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>
</ul>
</li>
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</section>
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<a id="lastValue">
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<h4>lastValue</h4>
<pre>protected&nbsp;java.lang.String lastValue</pre>
<div class="block">Cache of the label text</div>
</li>
</ul>
<a id="lastFont">
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</a>
<ul class="blockList">
<li class="blockList">
<h4>lastFont</h4>
<pre>protected&nbsp;java.awt.Font lastFont</pre>
<div class="block">Cache of the label font</div>
</li>
</ul>
<a id="lastPoints">
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</a>
<ul class="blockList">
<li class="blockList">
<h4>lastPoints</h4>
<pre>protected&nbsp;java.util.List&lt;<a href="../util/mxPoint.html" title="class in com.mxgraph.util">mxPoint</a>&gt; lastPoints</pre>
<div class="block">Cache of the last set of guide points that this label was calculated for</div>
</li>
</ul>
<a id="curve">
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</a>
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<h4>curve</h4>
<pre>protected&nbsp;<a href="../util/mxCurve.html" title="class in com.mxgraph.util">mxCurve</a> curve</pre>
<div class="block">Cache of the points between which drawing straight lines views as a
curve</div>
</li>
</ul>
<a id="state">
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<h4>state</h4>
<pre>protected&nbsp;<a href="../view/mxCellState.html" title="class in com.mxgraph.view">mxCellState</a> state</pre>
<div class="block">Cache the state associated with this shape</div>
</li>
</ul>
<a id="labelGlyphs">
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<h4>labelGlyphs</h4>
<pre>protected&nbsp;<a href="mxCurveLabelShape.LabelGlyphCache.html" title="class in com.mxgraph.shape">mxCurveLabelShape.LabelGlyphCache</a>[] labelGlyphs</pre>
<div class="block">Cache of information describing characteristics relating to drawing
each glyph of this label</div>
</li>
</ul>
<a id="labelSize">
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<h4>labelSize</h4>
<pre>protected&nbsp;double labelSize</pre>
<div class="block">Cache of the total length of the branch label</div>
</li>
</ul>
<a id="labelBounds">
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<h4>labelBounds</h4>
<pre>protected&nbsp;<a href="../util/mxRectangle.html" title="class in com.mxgraph.util">mxRectangle</a> labelBounds</pre>
<div class="block">Cache of the bounds of the label</div>
</li>
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<h4>labelPosition</h4>
<pre>protected&nbsp;<a href="mxCurveLabelShape.LabelPosition.html" title="class in com.mxgraph.shape">mxCurveLabelShape.LabelPosition</a> labelPosition</pre>
<div class="block">ADT to encapsulate label positioning information</div>
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<pre>public static&nbsp;double LABEL_BUFFER</pre>
<div class="block">Buffer at both ends of the label</div>
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<pre>public static&nbsp;double CURVE_TEXT_STRETCH_FACTOR</pre>
<div class="block">Factor by which text on the inside of curve is stretched</div>
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<pre>public static&nbsp;<a href="../util/mxRectangle.html" title="class in com.mxgraph.util">mxRectangle</a> INVALID_GLYPH_BOUNDS</pre>
<div class="block">Indicates that a glyph does not have valid drawing bounds, usually
because it is not visible</div>
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<h4>centerVisibleIndex</h4>
<pre>public&nbsp;int centerVisibleIndex</pre>
<div class="block">The index of the central glyph of the label that is visible</div>
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<pre>public static&nbsp;java.lang.Object FONT_FRACTIONALMETRICS</pre>
<div class="block">Specifies if image aspect should be preserved in drawImage. Default is true.</div>
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<pre>public&nbsp;java.awt.font.GlyphVector[] rtlGlyphVectors</pre>
<div class="block">Cache of BIDI glyph vectors</div>
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<pre>public static&nbsp;java.awt.font.FontRenderContext frc</pre>
<div class="block">Shared FRC for font size calculations</div>
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<pre>protected&nbsp;boolean rotationEnabled</pre>
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<pre>public&nbsp;mxCurveLabelShape&#8203;(<a href="../view/mxCellState.html" title="class in com.mxgraph.view">mxCellState</a>&nbsp;state,
<a href="../util/mxCurve.html" title="class in com.mxgraph.util">mxCurve</a>&nbsp;value)</pre>
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<pre class="methodSignature">public&nbsp;boolean&nbsp;getRotationEnabled()</pre>
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<pre class="methodSignature">public&nbsp;void&nbsp;setRotationEnabled&#8203;(boolean&nbsp;value)</pre>
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<pre class="methodSignature">public&nbsp;void&nbsp;paintShape&#8203;(<a href="../canvas/mxGraphics2DCanvas.html" title="class in com.mxgraph.canvas">mxGraphics2DCanvas</a>&nbsp;canvas,
java.lang.String&nbsp;text,
<a href="../view/mxCellState.html" title="class in com.mxgraph.view">mxCellState</a>&nbsp;state,
java.util.Map&lt;java.lang.String,&#8203;java.lang.Object&gt;&nbsp;style)</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="mxITextShape.html#paintShape(com.mxgraph.canvas.mxGraphics2DCanvas,java.lang.String,com.mxgraph.view.mxCellState,java.util.Map)">paintShape</a></code>&nbsp;in interface&nbsp;<code><a href="mxITextShape.html" title="interface in com.mxgraph.shape">mxITextShape</a></code></dd>
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<pre class="methodSignature">public&nbsp;<a href="../util/mxRectangle.html" title="class in com.mxgraph.util">mxRectangle</a>&nbsp;updateLabelBounds&#8203;(java.lang.String&nbsp;label,
java.util.Map&lt;java.lang.String,&#8203;java.lang.Object&gt;&nbsp;style)</pre>
<div class="block">Updates the cached position and size of each glyph in the edge label.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>label</code> - the entire string of the label.</dd>
<dd><code>style</code> - the edge style</dd>
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<pre class="methodSignature">protected&nbsp;void&nbsp;postprocessGlyph&#8203;(<a href="../util/mxCurve.html" title="class in com.mxgraph.util">mxCurve</a>&nbsp;curve,
java.lang.String&nbsp;label,
int&nbsp;j,
double&nbsp;currentPos)</pre>
<div class="block">Hook for sub-classers to perform additional processing on
each glyph</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>curve</code> - The curve object holding the label curve</dd>
<dd><code>label</code> - the text label of the curve</dd>
<dd><code>j</code> - the index of the label</dd>
<dd><code>currentPos</code> - the distance along the label curve the glyph is</dd>
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<pre class="methodSignature">public&nbsp;boolean&nbsp;intersectsRect&#8203;(java.awt.Rectangle&nbsp;rect)</pre>
<div class="block">Returns whether or not the rectangle passed in hits any part of this
curve.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rect</code> - the rectangle to detect for a hit</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>whether or not the rectangle hits this curve</dd>
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<pre class="methodSignature">protected&nbsp;void&nbsp;calculationLabelPosition&#8203;(java.util.Map&lt;java.lang.String,&#8203;java.lang.Object&gt;&nbsp;style,
java.lang.String&nbsp;label)</pre>
<div class="block">Hook method to override how the label is positioned on the curve</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>style</code> - the style of the curve</dd>
<dd><code>label</code> - the string label to be displayed on the curve</dd>
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<pre class="methodSignature">public&nbsp;<a href="../util/mxCurve.html" title="class in com.mxgraph.util">mxCurve</a>&nbsp;getCurve()</pre>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the curve</dd>
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<pre class="methodSignature">public&nbsp;void&nbsp;setCurve&#8203;(<a href="../util/mxCurve.html" title="class in com.mxgraph.util">mxCurve</a>&nbsp;curve)</pre>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>curve</code> - the curve to set</dd>
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<pre class="methodSignature">public&nbsp;<a href="../util/mxRectangle.html" title="class in com.mxgraph.util">mxRectangle</a>&nbsp;getLabelBounds()</pre>
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<pre class="methodSignature">public&nbsp;<a href="../util/mxRectangle.html" title="class in com.mxgraph.util">mxRectangle</a>&nbsp;getCenterVisiblePosition()</pre>
<div class="block">Returns the drawing bounds of the central indexed visible glyph</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the centerVisibleIndex</dd>
</dl>
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