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<h1>vtkEdgeCenters Class Reference</h1><!-- doxytag: class="vtkEdgeCenters" --><!-- doxytag: inherits="vtkPolyDataAlgorithm" --><code>#include &lt;<a class="el" href="a04806.html">vtkEdgeCenters.h</a>&gt;</code>
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Inheritance diagram for vtkEdgeCenters:</div>
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<p><center><img src="a09383.png" border="0" usemap="#a09384" alt="Inheritance graph"></center>
<map name="a09384">
<area shape="rect" href="a01261.html" title="Superclass for algorithms that produce only polydata as output." alt="" coords="5,229,160,256"><area shape="rect" href="a00101.html" title="Superclass for all sources, filters, and sinks in VTK." alt="" coords="33,155,132,181"><area shape="rect" href="a01084.html" title="abstract base class for most VTK objects" alt="" coords="43,80,123,107"><area shape="rect" href="a01085.html" title="abstract base class for most VTK objects" alt="" coords="28,5,137,32"></map>
<center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center></div>
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Collaboration diagram for vtkEdgeCenters:</div>
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<p><center><img src="a09385.png" border="0" usemap="#a09386" alt="Collaboration graph"></center>
<map name="a09386">
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<center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center></div>

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<a href="a09387.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>
generate points at center of edges 
<p>
<a class="el" href="a00446.html" title="generate points at center of edges">vtkEdgeCenters</a> is a filter that takes as input any graph and generates on output points at the center of the cells in the dataset. These points can be used for placing glyphs (<a class="el" href="a00651.html" title="copy oriented and scaled glyph geometry to every input point">vtkGlyph3D</a>) or labeling (<a class="el" href="a00938.html" title="draw text labels at dataset points">vtkLabeledDataMapper</a>). (The center is the parametric center of the cell, not necessarily the geometric or bounding box center.) The edge attributes will be associated with the points on output.<p>
<dl class="warning" compact><dt><b>Warning:</b></dt><dd>You can choose to generate just points or points and vertex cells. Vertex cells are drawn during rendering; points are not. Use the ivar VertexCells to generate cells.</dd></dl>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="a00651.html" title="copy oriented and scaled glyph geometry to every input point">vtkGlyph3D</a> <a class="el" href="a00938.html" title="draw text labels at dataset points">vtkLabeledDataMapper</a> </dd></dl>

<p>Definition at line <a class="el" href="a04806.html#l00039">39</a> of file <a class="el" href="a04806.html">vtkEdgeCenters.h</a>.</p>
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<tr><td colspan="2"><br><h2>Public Types</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">typedef <a class="el" href="a01261.html">vtkPolyDataAlgorithm</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00446.html#00f5f428251332bb991e57b66ab336ed">Superclass</a></td></tr>

<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual const char *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00446.html#86ac2a4e5f1b2391aaac867f4a8b5e9b">GetClassName</a> ()</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00446.html#6537622bc7935e1fd3b695f37fc6111d">IsA</a> (const char *type)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00446.html#83739dd87943dfd7efdbd3c89bb9a59f">PrintSelf</a> (ostream &amp;os, <a class="el" href="a00869.html">vtkIndent</a> indent)</td></tr>

<tr><td colspan="2"><div class="groupHeader"></div></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00446.html#629d7d8aeb0136d1c889907e8daf8443">SetVertexCells</a> (int)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00446.html#1ed91119386dd478171cc6aa1b41b675">GetVertexCells</a> ()</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00446.html#b2a8908b49382b8317cb2eeaf3c7e7fc">VertexCellsOn</a> ()</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00446.html#77801a0046db84f800b0c35fadb37e29">VertexCellsOff</a> ()</td></tr>

<tr><td colspan="2"><br><h2>Static Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00446.html#661a2c9a0f2572756d5fbf8d15650d75">IsTypeOf</a> (const char *type)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">static <a class="el" href="a00446.html">vtkEdgeCenters</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00446.html#56225347184701f0bbecf0d06580fc71">SafeDownCast</a> (<a class="el" href="a01084.html">vtkObject</a> *o)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">static <a class="el" href="a00446.html">vtkEdgeCenters</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00446.html#a8e60aa2a6f8fda45a2ff6dbfb8e147b">New</a> ()</td></tr>

<tr><td colspan="2"><br><h2>Protected Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00446.html#da3a83adac152a09def8723942372953">vtkEdgeCenters</a> ()</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00446.html#caa4aa2d6454a19df5ebc3f3769f61c6">~vtkEdgeCenters</a> ()</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00446.html#93f92dea003a903872e9f50a482e8f21">RequestData</a> (<a class="el" href="a00872.html">vtkInformation</a> *, <a class="el" href="a00895.html">vtkInformationVector</a> **, <a class="el" href="a00895.html">vtkInformationVector</a> *)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00446.html#54cfcd079724fd1fe7f4111f911e4ee3">FillInputPortInformation</a> (int port, <a class="el" href="a00872.html">vtkInformation</a> *info)</td></tr>

<tr><td colspan="2"><br><h2>Protected Attributes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00446.html#fc283eb0d6c0f9dd08be5d4acca6e066">VertexCells</a></td></tr>

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<hr><h2>Member Typedef Documentation</h2>
<a class="anchor" name="00f5f428251332bb991e57b66ab336ed"></a><!-- doxytag: member="vtkEdgeCenters::Superclass" ref="00f5f428251332bb991e57b66ab336ed" args="" -->
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          <td class="memname">typedef <a class="el" href="a01261.html">vtkPolyDataAlgorithm</a> <a class="el" href="a01261.html">vtkEdgeCenters::Superclass</a>          </td>
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<p>Reimplemented from <a class="el" href="a01261.html#0ef1960e1f3d6980b058ab47b5475b91">vtkPolyDataAlgorithm</a>.</p>

<p>Definition at line <a class="el" href="a04806.html#l00042">42</a> of file <a class="el" href="a04806.html">vtkEdgeCenters.h</a>.</p>

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<hr><h2>Constructor &amp; Destructor Documentation</h2>
<a class="anchor" name="da3a83adac152a09def8723942372953"></a><!-- doxytag: member="vtkEdgeCenters::vtkEdgeCenters" ref="da3a83adac152a09def8723942372953" args="()" -->
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          <td class="memname">vtkEdgeCenters::vtkEdgeCenters           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td><code> [protected]</code></td>
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<p>

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<a class="anchor" name="caa4aa2d6454a19df5ebc3f3769f61c6"></a><!-- doxytag: member="vtkEdgeCenters::~vtkEdgeCenters" ref="caa4aa2d6454a19df5ebc3f3769f61c6" args="()" -->
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          <td class="memname">vtkEdgeCenters::~vtkEdgeCenters           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td><code> [inline, protected]</code></td>
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<p>Definition at line <a class="el" href="a04806.html#l00057">57</a> of file <a class="el" href="a04806.html">vtkEdgeCenters.h</a>.</p>

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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="86ac2a4e5f1b2391aaac867f4a8b5e9b"></a><!-- doxytag: member="vtkEdgeCenters::GetClassName" ref="86ac2a4e5f1b2391aaac867f4a8b5e9b" args="()" -->
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          <td class="memname">virtual const char* vtkEdgeCenters::GetClassName           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td><code> [virtual]</code></td>
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<p>Reimplemented from <a class="el" href="a01261.html#117691a3be177e85a0eb7e54b011c9de">vtkPolyDataAlgorithm</a>.</p>

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<a class="anchor" name="661a2c9a0f2572756d5fbf8d15650d75"></a><!-- doxytag: member="vtkEdgeCenters::IsTypeOf" ref="661a2c9a0f2572756d5fbf8d15650d75" args="(const char *type)" -->
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          <td class="memname">static int vtkEdgeCenters::IsTypeOf           </td>
          <td>(</td>
          <td class="paramtype">const char *&nbsp;</td>
          <td class="paramname"> <em>name</em>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td><code> [static]</code></td>
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Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeRevisionMacro found in vtkSetGet.h. 
<p>Reimplemented from <a class="el" href="a01261.html#6e4df93069945e2df17a891c6f4cd557">vtkPolyDataAlgorithm</a>.</p>

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<a class="anchor" name="6537622bc7935e1fd3b695f37fc6111d"></a><!-- doxytag: member="vtkEdgeCenters::IsA" ref="6537622bc7935e1fd3b695f37fc6111d" args="(const char *type)" -->
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          <td class="memname">virtual int vtkEdgeCenters::IsA           </td>
          <td>(</td>
          <td class="paramtype">const char *&nbsp;</td>
          <td class="paramname"> <em>name</em>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td><code> [virtual]</code></td>
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Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeRevisionMacro found in vtkSetGet.h. 
<p>Reimplemented from <a class="el" href="a01261.html#b0133191c934f596dac2a21fd5a8da20">vtkPolyDataAlgorithm</a>.</p>

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<a class="anchor" name="56225347184701f0bbecf0d06580fc71"></a><!-- doxytag: member="vtkEdgeCenters::SafeDownCast" ref="56225347184701f0bbecf0d06580fc71" args="(vtkObject *o)" -->
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          <td class="memname">static <a class="el" href="a00446.html">vtkEdgeCenters</a>* vtkEdgeCenters::SafeDownCast           </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="a01084.html">vtkObject</a> *&nbsp;</td>
          <td class="paramname"> <em>o</em>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td><code> [static]</code></td>
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<p>Reimplemented from <a class="el" href="a01261.html#3a09aba4f394c174457d17e9bc08af04">vtkPolyDataAlgorithm</a>.</p>

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<a class="anchor" name="83739dd87943dfd7efdbd3c89bb9a59f"></a><!-- doxytag: member="vtkEdgeCenters::PrintSelf" ref="83739dd87943dfd7efdbd3c89bb9a59f" args="(ostream &amp;os, vtkIndent indent)" -->
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          <td class="memname">void vtkEdgeCenters::PrintSelf           </td>
          <td>(</td>
          <td class="paramtype">ostream &amp;&nbsp;</td>
          <td class="paramname"> <em>os</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="a00869.html">vtkIndent</a>&nbsp;</td>
          <td class="paramname"> <em>indent</em></td><td>&nbsp;</td>
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          <td></td>
          <td>)</td>
          <td></td><td></td><td><code> [virtual]</code></td>
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Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use <a class="el" href="a01085.html#edadf6378465fd81c2592ef64262e2a5">Print()</a> instead) but used in the hierarchical print process to combine the output of several classes. 
<p>Reimplemented from <a class="el" href="a01261.html#e6d59a63261b0c56f8f473984ae0e1b6">vtkPolyDataAlgorithm</a>.</p>

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<a class="anchor" name="a8e60aa2a6f8fda45a2ff6dbfb8e147b"></a><!-- doxytag: member="vtkEdgeCenters::New" ref="a8e60aa2a6f8fda45a2ff6dbfb8e147b" args="()" -->
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          <td class="memname">static <a class="el" href="a00446.html">vtkEdgeCenters</a>* vtkEdgeCenters::New           </td>
          <td>(</td>
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          <td><code> [static]</code></td>
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Construct object with vertex cell generation turned off. 
<p>Reimplemented from <a class="el" href="a01261.html#cf785ac526132296ff652c636f713b5e">vtkPolyDataAlgorithm</a>.</p>

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<a class="anchor" name="629d7d8aeb0136d1c889907e8daf8443"></a><!-- doxytag: member="vtkEdgeCenters::SetVertexCells" ref="629d7d8aeb0136d1c889907e8daf8443" args="(int)" -->
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          <td class="memname">virtual void vtkEdgeCenters::SetVertexCells           </td>
          <td>(</td>
          <td class="paramtype">int&nbsp;</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td><code> [virtual]</code></td>
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Enable/disable the generation of vertex cells. 
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<a class="anchor" name="1ed91119386dd478171cc6aa1b41b675"></a><!-- doxytag: member="vtkEdgeCenters::GetVertexCells" ref="1ed91119386dd478171cc6aa1b41b675" args="()" -->
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          <td class="memname">virtual int vtkEdgeCenters::GetVertexCells           </td>
          <td>(</td>
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          <td>&nbsp;)&nbsp;</td>
          <td><code> [virtual]</code></td>
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Enable/disable the generation of vertex cells. 
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<a class="anchor" name="b2a8908b49382b8317cb2eeaf3c7e7fc"></a><!-- doxytag: member="vtkEdgeCenters::VertexCellsOn" ref="b2a8908b49382b8317cb2eeaf3c7e7fc" args="()" -->
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          <td class="memname">virtual void vtkEdgeCenters::VertexCellsOn           </td>
          <td>(</td>
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          <td><code> [virtual]</code></td>
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Enable/disable the generation of vertex cells. 
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<a class="anchor" name="77801a0046db84f800b0c35fadb37e29"></a><!-- doxytag: member="vtkEdgeCenters::VertexCellsOff" ref="77801a0046db84f800b0c35fadb37e29" args="()" -->
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          <td class="memname">virtual void vtkEdgeCenters::VertexCellsOff           </td>
          <td>(</td>
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          <td><code> [virtual]</code></td>
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Enable/disable the generation of vertex cells. 
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<a class="anchor" name="93f92dea003a903872e9f50a482e8f21"></a><!-- doxytag: member="vtkEdgeCenters::RequestData" ref="93f92dea003a903872e9f50a482e8f21" args="(vtkInformation *, vtkInformationVector **, vtkInformationVector *)" -->
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          <td class="memname">virtual int vtkEdgeCenters::RequestData           </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="a00872.html">vtkInformation</a> *&nbsp;</td>
          <td class="paramname"> <em>request</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="a00895.html">vtkInformationVector</a> **&nbsp;</td>
          <td class="paramname"> <em>inputVector</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="a00895.html">vtkInformationVector</a> *&nbsp;</td>
          <td class="paramname"> <em>outputVector</em></td><td>&nbsp;</td>
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          <td>)</td>
          <td></td><td></td><td><code> [protected, virtual]</code></td>
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This is called by the superclass. This is the method you should override. 
<p>Reimplemented from <a class="el" href="a01261.html#6b5a43ab1f9bbcb368c7dc83e4afe068">vtkPolyDataAlgorithm</a>.</p>

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<a class="anchor" name="54cfcd079724fd1fe7f4111f911e4ee3"></a><!-- doxytag: member="vtkEdgeCenters::FillInputPortInformation" ref="54cfcd079724fd1fe7f4111f911e4ee3" args="(int port, vtkInformation *info)" -->
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          <td class="memname">virtual int vtkEdgeCenters::FillInputPortInformation           </td>
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          <td class="paramtype">int&nbsp;</td>
          <td class="paramname"> <em>port</em>, </td>
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          <td class="paramtype"><a class="el" href="a00872.html">vtkInformation</a> *&nbsp;</td>
          <td class="paramname"> <em>info</em></td><td>&nbsp;</td>
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Fill the input port information objects for this algorithm. This is invoked by the first call to GetInputPortInformation for each port so subclasses can specify what they can handle. 
<p>Reimplemented from <a class="el" href="a01261.html#a9084b97ab9c0c8c76e490fa9776a832">vtkPolyDataAlgorithm</a>.</p>

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<hr><h2>Member Data Documentation</h2>
<a class="anchor" name="fc283eb0d6c0f9dd08be5d4acca6e066"></a><!-- doxytag: member="vtkEdgeCenters::VertexCells" ref="fc283eb0d6c0f9dd08be5d4acca6e066" args="" -->
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          <td class="memname">int <a class="el" href="a00446.html#fc283eb0d6c0f9dd08be5d4acca6e066">vtkEdgeCenters::VertexCells</a><code> [protected]</code>          </td>
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<p>Definition at line <a class="el" href="a04806.html#l00062">62</a> of file <a class="el" href="a04806.html">vtkEdgeCenters.h</a>.</p>

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<hr>The documentation for this class was generated from the following file:<ul>
<li>dox/Infovis/<a class="el" href="a04806.html">vtkEdgeCenters.h</a></ul>
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<hr size="1"><address style="text-align: right;"><small>Generated on Wed Jun 3 19:00:50 2009 for VTK by&nbsp;
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