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<h1>vtkConnectivityFilter Class Reference</h1><!-- doxytag: class="vtkConnectivityFilter" --><!-- doxytag: inherits="vtkUnstructuredGridAlgorithm" --><code>#include &lt;<a class="el" href="a04281.html">vtkConnectivityFilter.h</a>&gt;</code>
<p>
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Inheritance diagram for vtkConnectivityFilter:</div>
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Collaboration diagram for vtkConnectivityFilter:</div>
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<p>
<a href="a08796.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>
extract data based on geometric connectivity 
<p>
<a class="el" href="a00317.html" title="extract data based on geometric connectivity">vtkConnectivityFilter</a> is a filter that extracts cells that share common points and/or meet other connectivity criterion. (Cells that share vertices and meet other connectivity criterion such as scalar range are known as a region.) The filter works in one of six ways: 1) extract the largest connected region in the dataset; 2) extract specified region numbers; 3) extract all regions sharing specified point ids; 4) extract all regions sharing specified cell ids; 5) extract the region closest to the specified point; or 6) extract all regions (used to color the data by region).<p>
<a class="el" href="a00317.html" title="extract data based on geometric connectivity">vtkConnectivityFilter</a> is generalized to handle any type of input dataset. It generates output data of type <a class="el" href="a01789.html" title="dataset represents arbitrary combinations of all possible cell types">vtkUnstructuredGrid</a>. If you know that your input type is <a class="el" href="a01260.html" title="concrete dataset represents vertices, lines, polygons, and triangle strips">vtkPolyData</a>, you may wish to use <a class="el" href="a01263.html" title="extract polygonal data based on geometric connectivity">vtkPolyDataConnectivityFilter</a>.<p>
The behavior of <a class="el" href="a00317.html" title="extract data based on geometric connectivity">vtkConnectivityFilter</a> can be modified by turning on the boolean ivar ScalarConnectivity. If this flag is on, the connectivity algorithm is modified so that cells are considered connected only if 1) they are geometrically connected (share a point) and 2) the scalar values of one of the cell's points falls in the scalar range specified. This use of ScalarConnectivity is particularly useful for volume datasets: it can be used as a simple "connected segmentation" algorithm. For example, by using a seed voxel (i.e., cell) on a known anatomical structure, connectivity will pull out all voxels "containing" the anatomical structure. These voxels can then be contoured or processed by other visualization filters.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="a01263.html" title="extract polygonal data based on geometric connectivity">vtkPolyDataConnectivityFilter</a></dd></dl>
<dl class="user" compact><dt><b>Tests:</b></dt><dd><a class="el" href="c2_vtk_t_3.html#c2_vtk_t_vtkConnectivityFilter">vtkConnectivityFilter (Tests)</a> </dd></dl>

<p>Definition at line <a class="el" href="a04281.html#l00070">70</a> of file <a class="el" href="a04281.html">vtkConnectivityFilter.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 <br>
<a class="el" href="a01790.html">vtkUnstructuredGridAlgorithm</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#d3a0ee5b85e8dea72d54a9e766a32287">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="a00317.html#954a102c342bf746bc08be507c72d799">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="a00317.html#7e23ca763c9172c51981c2988383b45f">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="a00317.html#b4509300a8812e8520ad51955d25272d">PrintSelf</a> (ostream &amp;os, <a class="el" href="a00869.html">vtkIndent</a> indent)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#a03a1d110cdf284d7ab12453e858e3f8">InitializeSeedList</a> ()</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#851a7dca9833344b743f7edac37d6e5b">AddSeed</a> (<a class="el" href="a02149.html#20bd6b6dedfe1bbb096c50354d52cc7e">vtkIdType</a> id)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#5134aa955887feeb9202be985d4c50d0">DeleteSeed</a> (<a class="el" href="a02149.html#20bd6b6dedfe1bbb096c50354d52cc7e">vtkIdType</a> id)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#d1c1514739e75ff11e1bedd1737b7a90">InitializeSpecifiedRegionList</a> ()</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#14d5d0b1619437113a3974efcd38af75">AddSpecifiedRegion</a> (int id)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#a3949a42551ed6860f2019af1b179f41">DeleteSpecifiedRegion</a> (int id)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#ff805a0d7a6da882f16a7995e1d13f33">GetNumberOfExtractedRegions</a> ()</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="a00317.html#0243f7809d5227d23b7031cf66d9f87f">SetScalarConnectivity</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="a00317.html#a0b9bce5d62ef04db7684861b7309131">GetScalarConnectivity</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="a00317.html#76559953b5322fabe734ab9c18f27a4f">ScalarConnectivityOn</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="a00317.html#709d236e713ede70a81c884a37f076dd">ScalarConnectivityOff</a> ()</td></tr>

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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#bcf490a0b4004ddeb26a64aeb7c9673f">SetScalarRange</a> (double, double)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#9596e1ea4799a1c6fe386b9729e80494">SetScalarRange</a> (double[2])</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual double *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#6f7724b235f21ae5e72d39c692bc0aac">GetScalarRange</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="a00317.html#6620f98ee07a987323045f7fb84a55a3">GetScalarRange</a> (double &amp;, double &amp;)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#02da6c1b5608424a185f326664a0674d">GetScalarRange</a> (double[2])</td></tr>

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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#23a2fd664de564acf13ef148c9ba01ad">SetExtractionMode</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="a00317.html#4677ce364ac8ec6ac6da418d49ccb13f">GetExtractionMode</a> ()</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#c16c311d03b06a69db569401734e4621">SetExtractionModeToPointSeededRegions</a> ()</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#61c43a706ac69f6f902ed8370abc320d">SetExtractionModeToCellSeededRegions</a> ()</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#0bd4910919d3dfa17111b351c6d048f1">SetExtractionModeToLargestRegion</a> ()</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#fdc7dcada1a8498a0e2552e94ef53110">SetExtractionModeToSpecifiedRegions</a> ()</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#0afa68eb6a4aded83fbc8c0951ac5a69">SetExtractionModeToClosestPointRegion</a> ()</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#ccc8aef46624816835d958133d2fa58a">SetExtractionModeToAllRegions</a> ()</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">const char *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#5ad36e1dfba7e056a219d7488858d3ee">GetExtractionModeAsString</a> ()</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="a00317.html#23b75e2a2c5ab62a8ead508920628f52">SetClosestPoint</a> (double, double, double)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#87f1143d05f25cacec015c8c62a43c8d">SetClosestPoint</a> (double[3])</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual double *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#66fc03b64441e09194a094d141a541c9">GetClosestPoint</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="a00317.html#d751aee9be7a248431dcbefe6fa9a148">GetClosestPoint</a> (double data[3])</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="a00317.html#dac517dc8cadfd696a48b84b0e01e5d6">SetColorRegions</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="a00317.html#b3df0b3f68eabfd47990b85ca50b5c96">GetColorRegions</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="a00317.html#9c6b1324e9fc95d93edec6e94379b0f1">ColorRegionsOn</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="a00317.html#6fd0f5daf2b9e0462eb5782e0a6130ee">ColorRegionsOff</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="a00317.html#c9b4f492d04ad40009df01ad00be3037">IsTypeOf</a> (const char *type)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">static <a class="el" href="a00317.html">vtkConnectivityFilter</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#48c14ace9574a1483df045af7a792ac2">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="a00317.html">vtkConnectivityFilter</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#a27a34830dcd5d45618d1023d2f94889">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="a00317.html#72d005759734c0c93c73bbbf8f7cdec2">vtkConnectivityFilter</a> ()</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#408e8be538cb29942824679e3485b9a8">~vtkConnectivityFilter</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="a00317.html#eaa86f9b4bf151276f1dbe2ee28fde6a">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="a00317.html#fdd9760ea2fe11312354805ba830568a">FillInputPortInformation</a> (int port, <a class="el" href="a00872.html">vtkInformation</a> *info)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#086df5fbd85341ae205df33861d7b3f3">TraverseAndMark</a> (<a class="el" href="a00374.html">vtkDataSet</a> *input)</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="a00317.html#03b5053b2abc9edc2e44bc883998f816">ColorRegions</a></td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#8a37ea6fa0d829ec13a89adec6383f9f">ExtractionMode</a></td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a00720.html">vtkIdList</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#d20f160503bd02789c08baacb4215eb3">Seeds</a></td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a00720.html">vtkIdList</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#0be09bd14eb2aa9a9db612bde1ce9958">SpecifiedRegionIds</a></td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a00722.html">vtkIdTypeArray</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#8f9f6b67cc095a187db92137da962157">RegionSizes</a></td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">double&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#b17505d7c2cf9a354eec15fe85fc5e94">ClosestPoint</a> [3]</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#cc81334f3399fdc8154d5ea50001a242">ScalarConnectivity</a></td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">double&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00317.html#cb5ccc4cf6eade3374944810cba7b22b">ScalarRange</a> [2]</td></tr>

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<hr><h2>Member Typedef Documentation</h2>
<a class="anchor" name="d3a0ee5b85e8dea72d54a9e766a32287"></a><!-- doxytag: member="vtkConnectivityFilter::Superclass" ref="d3a0ee5b85e8dea72d54a9e766a32287" args="" -->
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          <td class="memname">typedef <a class="el" href="a01790.html">vtkUnstructuredGridAlgorithm</a> <a class="el" href="a01790.html">vtkConnectivityFilter::Superclass</a>          </td>
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<p>

<p>Reimplemented from <a class="el" href="a01790.html#83cb04ebf76077fcf2840e7378bce5eb">vtkUnstructuredGridAlgorithm</a>.</p>

<p>Definition at line <a class="el" href="a04281.html#l00073">73</a> of file <a class="el" href="a04281.html">vtkConnectivityFilter.h</a>.</p>

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<hr><h2>Constructor &amp; Destructor Documentation</h2>
<a class="anchor" name="72d005759734c0c93c73bbbf8f7cdec2"></a><!-- doxytag: member="vtkConnectivityFilter::vtkConnectivityFilter" ref="72d005759734c0c93c73bbbf8f7cdec2" args="()" -->
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<a class="anchor" name="408e8be538cb29942824679e3485b9a8"></a><!-- doxytag: member="vtkConnectivityFilter::~vtkConnectivityFilter" ref="408e8be538cb29942824679e3485b9a8" args="()" -->
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="954a102c342bf746bc08be507c72d799"></a><!-- doxytag: member="vtkConnectivityFilter::GetClassName" ref="954a102c342bf746bc08be507c72d799" args="()" -->
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          <td class="memname">virtual const char* vtkConnectivityFilter::GetClassName           </td>
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          <td><code> [virtual]</code></td>
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<p>Reimplemented from <a class="el" href="a01790.html#cc8e5750f6e0e4c5990f4fdaf08aa3a6">vtkUnstructuredGridAlgorithm</a>.</p>

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<a class="anchor" name="c9b4f492d04ad40009df01ad00be3037"></a><!-- doxytag: member="vtkConnectivityFilter::IsTypeOf" ref="c9b4f492d04ad40009df01ad00be3037" args="(const char *type)" -->
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          <td class="memname">static int vtkConnectivityFilter::IsTypeOf           </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="a01790.html#979e1b89c2a9d22b409d132dc361273d">vtkUnstructuredGridAlgorithm</a>.</p>

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<a class="anchor" name="7e23ca763c9172c51981c2988383b45f"></a><!-- doxytag: member="vtkConnectivityFilter::IsA" ref="7e23ca763c9172c51981c2988383b45f" args="(const char *type)" -->
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          <td class="memname">virtual int vtkConnectivityFilter::IsA           </td>
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          <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="a01790.html#04261b9851bf9e9f5d8e87164b0b7f1b">vtkUnstructuredGridAlgorithm</a>.</p>

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<a class="anchor" name="48c14ace9574a1483df045af7a792ac2"></a><!-- doxytag: member="vtkConnectivityFilter::SafeDownCast" ref="48c14ace9574a1483df045af7a792ac2" args="(vtkObject *o)" -->
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          <td class="memname">static <a class="el" href="a00317.html">vtkConnectivityFilter</a>* vtkConnectivityFilter::SafeDownCast           </td>
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          <td class="paramtype"><a class="el" href="a01084.html">vtkObject</a> *&nbsp;</td>
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<p>Reimplemented from <a class="el" href="a01790.html#c21194826192f883eaa58f3cb1efac53">vtkUnstructuredGridAlgorithm</a>.</p>

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<a class="anchor" name="b4509300a8812e8520ad51955d25272d"></a><!-- doxytag: member="vtkConnectivityFilter::PrintSelf" ref="b4509300a8812e8520ad51955d25272d" args="(ostream &amp;os, vtkIndent indent)" -->
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          <td class="memname">void vtkConnectivityFilter::PrintSelf           </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="a01790.html#13d193ef6fd94356f3306d3e799bc9cc">vtkUnstructuredGridAlgorithm</a>.</p>

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<a class="anchor" name="a27a34830dcd5d45618d1023d2f94889"></a><!-- doxytag: member="vtkConnectivityFilter::New" ref="a27a34830dcd5d45618d1023d2f94889" args="()" -->
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          <td class="memname">static <a class="el" href="a00317.html">vtkConnectivityFilter</a>* vtkConnectivityFilter::New           </td>
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Construct with default extraction mode to extract largest regions. 
<p>Reimplemented from <a class="el" href="a01790.html#2646137e0d32c31ea2f5d6c36a839c5e">vtkUnstructuredGridAlgorithm</a>.</p>

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<a class="anchor" name="0243f7809d5227d23b7031cf66d9f87f"></a><!-- doxytag: member="vtkConnectivityFilter::SetScalarConnectivity" ref="0243f7809d5227d23b7031cf66d9f87f" args="(int)" -->
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          <td class="memname">virtual void vtkConnectivityFilter::SetScalarConnectivity           </td>
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Turn on/off connectivity based on scalar value. If on, cells are connected only if they share points AND one of the cells scalar values falls in the scalar range specified. 
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<a class="anchor" name="a0b9bce5d62ef04db7684861b7309131"></a><!-- doxytag: member="vtkConnectivityFilter::GetScalarConnectivity" ref="a0b9bce5d62ef04db7684861b7309131" args="()" -->
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          <td class="memname">virtual int vtkConnectivityFilter::GetScalarConnectivity           </td>
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Turn on/off connectivity based on scalar value. If on, cells are connected only if they share points AND one of the cells scalar values falls in the scalar range specified. 
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<a class="anchor" name="76559953b5322fabe734ab9c18f27a4f"></a><!-- doxytag: member="vtkConnectivityFilter::ScalarConnectivityOn" ref="76559953b5322fabe734ab9c18f27a4f" args="()" -->
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Turn on/off connectivity based on scalar value. If on, cells are connected only if they share points AND one of the cells scalar values falls in the scalar range specified. 
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<a class="anchor" name="709d236e713ede70a81c884a37f076dd"></a><!-- doxytag: member="vtkConnectivityFilter::ScalarConnectivityOff" ref="709d236e713ede70a81c884a37f076dd" args="()" -->
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Turn on/off connectivity based on scalar value. If on, cells are connected only if they share points AND one of the cells scalar values falls in the scalar range specified. 
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<a class="anchor" name="bcf490a0b4004ddeb26a64aeb7c9673f"></a><!-- doxytag: member="vtkConnectivityFilter::SetScalarRange" ref="bcf490a0b4004ddeb26a64aeb7c9673f" args="(double, double)" -->
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Set the scalar range to use to extract cells based on scalar connectivity. 
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<a class="anchor" name="9596e1ea4799a1c6fe386b9729e80494"></a><!-- doxytag: member="vtkConnectivityFilter::SetScalarRange" ref="9596e1ea4799a1c6fe386b9729e80494" args="(double[2])" -->
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          <td class="memname">void vtkConnectivityFilter::SetScalarRange           </td>
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Set the scalar range to use to extract cells based on scalar connectivity. 
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<a class="anchor" name="6f7724b235f21ae5e72d39c692bc0aac"></a><!-- doxytag: member="vtkConnectivityFilter::GetScalarRange" ref="6f7724b235f21ae5e72d39c692bc0aac" args="()" -->
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Set the scalar range to use to extract cells based on scalar connectivity. 
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<a class="anchor" name="6620f98ee07a987323045f7fb84a55a3"></a><!-- doxytag: member="vtkConnectivityFilter::GetScalarRange" ref="6620f98ee07a987323045f7fb84a55a3" args="(double &amp;, double &amp;)" -->
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Set the scalar range to use to extract cells based on scalar connectivity. 
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<a class="anchor" name="02da6c1b5608424a185f326664a0674d"></a><!-- doxytag: member="vtkConnectivityFilter::GetScalarRange" ref="02da6c1b5608424a185f326664a0674d" args="(double[2])" -->
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Set the scalar range to use to extract cells based on scalar connectivity. 
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<a class="anchor" name="23a2fd664de564acf13ef148c9ba01ad"></a><!-- doxytag: member="vtkConnectivityFilter::SetExtractionMode" ref="23a2fd664de564acf13ef148c9ba01ad" args="(int)" -->
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          <td class="memname">virtual void vtkConnectivityFilter::SetExtractionMode           </td>
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Control the extraction of connected surfaces. 
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<a class="anchor" name="4677ce364ac8ec6ac6da418d49ccb13f"></a><!-- doxytag: member="vtkConnectivityFilter::GetExtractionMode" ref="4677ce364ac8ec6ac6da418d49ccb13f" args="()" -->
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Control the extraction of connected surfaces. 
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<a class="anchor" name="c16c311d03b06a69db569401734e4621"></a><!-- doxytag: member="vtkConnectivityFilter::SetExtractionModeToPointSeededRegions" ref="c16c311d03b06a69db569401734e4621" args="()" -->
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Control the extraction of connected surfaces. 
<p>Definition at line <a class="el" href="a04281.html#l00100">100</a> of file <a class="el" href="a04281.html">vtkConnectivityFilter.h</a>.</p>

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<a class="anchor" name="61c43a706ac69f6f902ed8370abc320d"></a><!-- doxytag: member="vtkConnectivityFilter::SetExtractionModeToCellSeededRegions" ref="61c43a706ac69f6f902ed8370abc320d" args="()" -->
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Control the extraction of connected surfaces. 
<p>Definition at line <a class="el" href="a04281.html#l00102">102</a> of file <a class="el" href="a04281.html">vtkConnectivityFilter.h</a>.</p>

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<a class="anchor" name="0bd4910919d3dfa17111b351c6d048f1"></a><!-- doxytag: member="vtkConnectivityFilter::SetExtractionModeToLargestRegion" ref="0bd4910919d3dfa17111b351c6d048f1" args="()" -->
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Control the extraction of connected surfaces. 
<p>Definition at line <a class="el" href="a04281.html#l00104">104</a> of file <a class="el" href="a04281.html">vtkConnectivityFilter.h</a>.</p>

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<a class="anchor" name="fdc7dcada1a8498a0e2552e94ef53110"></a><!-- doxytag: member="vtkConnectivityFilter::SetExtractionModeToSpecifiedRegions" ref="fdc7dcada1a8498a0e2552e94ef53110" args="()" -->
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Control the extraction of connected surfaces. 
<p>Definition at line <a class="el" href="a04281.html#l00106">106</a> of file <a class="el" href="a04281.html">vtkConnectivityFilter.h</a>.</p>

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<a class="anchor" name="0afa68eb6a4aded83fbc8c0951ac5a69"></a><!-- doxytag: member="vtkConnectivityFilter::SetExtractionModeToClosestPointRegion" ref="0afa68eb6a4aded83fbc8c0951ac5a69" args="()" -->
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Control the extraction of connected surfaces. 
<p>Definition at line <a class="el" href="a04281.html#l00108">108</a> of file <a class="el" href="a04281.html">vtkConnectivityFilter.h</a>.</p>

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<a class="anchor" name="ccc8aef46624816835d958133d2fa58a"></a><!-- doxytag: member="vtkConnectivityFilter::SetExtractionModeToAllRegions" ref="ccc8aef46624816835d958133d2fa58a" args="()" -->
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Control the extraction of connected surfaces. 
<p>Definition at line <a class="el" href="a04281.html#l00110">110</a> of file <a class="el" href="a04281.html">vtkConnectivityFilter.h</a>.</p>

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<a class="anchor" name="5ad36e1dfba7e056a219d7488858d3ee"></a><!-- doxytag: member="vtkConnectivityFilter::GetExtractionModeAsString" ref="5ad36e1dfba7e056a219d7488858d3ee" args="()" -->
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Return the method of extraction as a string. 
<p>Definition at line <a class="el" href="a04281.html#l00193">193</a> of file <a class="el" href="a04281.html">vtkConnectivityFilter.h</a>.</p>

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<a class="anchor" name="a03a1d110cdf284d7ab12453e858e3f8"></a><!-- doxytag: member="vtkConnectivityFilter::InitializeSeedList" ref="a03a1d110cdf284d7ab12453e858e3f8" args="()" -->
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Initialize list of point ids/cell ids used to seed regions. 
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<a class="anchor" name="851a7dca9833344b743f7edac37d6e5b"></a><!-- doxytag: member="vtkConnectivityFilter::AddSeed" ref="851a7dca9833344b743f7edac37d6e5b" args="(vtkIdType id)" -->
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          <td class="memname">void vtkConnectivityFilter::AddSeed           </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="a02149.html#20bd6b6dedfe1bbb096c50354d52cc7e">vtkIdType</a>&nbsp;</td>
          <td class="paramname"> <em>id</em>          </td>
          <td>&nbsp;)&nbsp;</td>
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<p>
Add a seed id (point or cell id). Note: ids are 0-offset. 
</div>
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<a class="anchor" name="5134aa955887feeb9202be985d4c50d0"></a><!-- doxytag: member="vtkConnectivityFilter::DeleteSeed" ref="5134aa955887feeb9202be985d4c50d0" args="(vtkIdType id)" -->
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          <td class="memname">void vtkConnectivityFilter::DeleteSeed           </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="a02149.html#20bd6b6dedfe1bbb096c50354d52cc7e">vtkIdType</a>&nbsp;</td>
          <td class="paramname"> <em>id</em>          </td>
          <td>&nbsp;)&nbsp;</td>
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<p>
Delete a seed id (point or cell id). Note: ids are 0-offset. 
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<a class="anchor" name="d1c1514739e75ff11e1bedd1737b7a90"></a><!-- doxytag: member="vtkConnectivityFilter::InitializeSpecifiedRegionList" ref="d1c1514739e75ff11e1bedd1737b7a90" args="()" -->
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          <td class="memname">void vtkConnectivityFilter::InitializeSpecifiedRegionList           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
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<p>
Initialize list of region ids to extract. 
</div>
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<a class="anchor" name="14d5d0b1619437113a3974efcd38af75"></a><!-- doxytag: member="vtkConnectivityFilter::AddSpecifiedRegion" ref="14d5d0b1619437113a3974efcd38af75" args="(int id)" -->
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          <td class="memname">void vtkConnectivityFilter::AddSpecifiedRegion           </td>
          <td>(</td>
          <td class="paramtype">int&nbsp;</td>
          <td class="paramname"> <em>id</em>          </td>
          <td>&nbsp;)&nbsp;</td>
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<p>
Add a region id to extract. Note: ids are 0-offset. 
</div>
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<a class="anchor" name="a3949a42551ed6860f2019af1b179f41"></a><!-- doxytag: member="vtkConnectivityFilter::DeleteSpecifiedRegion" ref="a3949a42551ed6860f2019af1b179f41" args="(int id)" -->
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          <td class="memname">void vtkConnectivityFilter::DeleteSpecifiedRegion           </td>
          <td>(</td>
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          <td class="paramname"> <em>id</em>          </td>
          <td>&nbsp;)&nbsp;</td>
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<p>
Delete a region id to extract. Note: ids are 0-offset. 
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<a class="anchor" name="23b75e2a2c5ab62a8ead508920628f52"></a><!-- doxytag: member="vtkConnectivityFilter::SetClosestPoint" ref="23b75e2a2c5ab62a8ead508920628f52" args="(double, double, double)" -->
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          <td class="memname">virtual void vtkConnectivityFilter::SetClosestPoint           </td>
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          <td class="paramtype">double&nbsp;</td>
          <td class="paramname">, </td>
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          <td class="paramtype">double&nbsp;</td>
          <td class="paramname">, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">double&nbsp;</td>
          <td class="paramname"></td><td>&nbsp;</td>
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          <td>)</td>
          <td></td><td></td><td><code> [virtual]</code></td>
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<p>
Use to specify x-y-z point coordinates when extracting the region closest to a specified point. 
</div>
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<a class="anchor" name="87f1143d05f25cacec015c8c62a43c8d"></a><!-- doxytag: member="vtkConnectivityFilter::SetClosestPoint" ref="87f1143d05f25cacec015c8c62a43c8d" args="(double[3])" -->
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          <td class="memname">virtual void vtkConnectivityFilter::SetClosestPoint           </td>
          <td>(</td>
          <td class="paramtype">double&nbsp;</td>
          <td class="paramname">[3]          </td>
          <td>&nbsp;)&nbsp;</td>
          <td><code> [virtual]</code></td>
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<p>
Use to specify x-y-z point coordinates when extracting the region closest to a specified point. 
</div>
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<a class="anchor" name="66fc03b64441e09194a094d141a541c9"></a><!-- doxytag: member="vtkConnectivityFilter::GetClosestPoint" ref="66fc03b64441e09194a094d141a541c9" args="()" -->
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          <td class="memname">virtual double* vtkConnectivityFilter::GetClosestPoint           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td><code> [virtual]</code></td>
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      </table>
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<p>
Use to specify x-y-z point coordinates when extracting the region closest to a specified point. 
</div>
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<a class="anchor" name="d751aee9be7a248431dcbefe6fa9a148"></a><!-- doxytag: member="vtkConnectivityFilter::GetClosestPoint" ref="d751aee9be7a248431dcbefe6fa9a148" args="(double data[3])" -->
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          <td class="memname">virtual void vtkConnectivityFilter::GetClosestPoint           </td>
          <td>(</td>
          <td class="paramtype">double&nbsp;</td>
          <td class="paramname"> <em>data</em>[3]          </td>
          <td>&nbsp;)&nbsp;</td>
          <td><code> [virtual]</code></td>
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<p>
Use to specify x-y-z point coordinates when extracting the region closest to a specified point. 
</div>
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<a class="anchor" name="ff805a0d7a6da882f16a7995e1d13f33"></a><!-- doxytag: member="vtkConnectivityFilter::GetNumberOfExtractedRegions" ref="ff805a0d7a6da882f16a7995e1d13f33" args="()" -->
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          <td class="memname">int vtkConnectivityFilter::GetNumberOfExtractedRegions           </td>
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<p>
Obtain the number of connected regions. 
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<a class="anchor" name="dac517dc8cadfd696a48b84b0e01e5d6"></a><!-- doxytag: member="vtkConnectivityFilter::SetColorRegions" ref="dac517dc8cadfd696a48b84b0e01e5d6" args="(int)" -->
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          <td class="memname">virtual void vtkConnectivityFilter::SetColorRegions           </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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<p>
Turn on/off the coloring of connected regions. 
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<a class="anchor" name="b3df0b3f68eabfd47990b85ca50b5c96"></a><!-- doxytag: member="vtkConnectivityFilter::GetColorRegions" ref="b3df0b3f68eabfd47990b85ca50b5c96" args="()" -->
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          <td class="memname">virtual int vtkConnectivityFilter::GetColorRegions           </td>
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          <td><code> [virtual]</code></td>
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<p>
Turn on/off the coloring of connected regions. 
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<a class="anchor" name="9c6b1324e9fc95d93edec6e94379b0f1"></a><!-- doxytag: member="vtkConnectivityFilter::ColorRegionsOn" ref="9c6b1324e9fc95d93edec6e94379b0f1" args="()" -->
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          <td class="memname">virtual void vtkConnectivityFilter::ColorRegionsOn           </td>
          <td>(</td>
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          <td>&nbsp;)&nbsp;</td>
          <td><code> [virtual]</code></td>
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<p>
Turn on/off the coloring of connected regions. 
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<a class="anchor" name="6fd0f5daf2b9e0462eb5782e0a6130ee"></a><!-- doxytag: member="vtkConnectivityFilter::ColorRegionsOff" ref="6fd0f5daf2b9e0462eb5782e0a6130ee" args="()" -->
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          <td class="memname">virtual void vtkConnectivityFilter::ColorRegionsOff           </td>
          <td>(</td>
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          <td>&nbsp;)&nbsp;</td>
          <td><code> [virtual]</code></td>
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<p>
Turn on/off the coloring of connected regions. 
</div>
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<a class="anchor" name="eaa86f9b4bf151276f1dbe2ee28fde6a"></a><!-- doxytag: member="vtkConnectivityFilter::RequestData" ref="eaa86f9b4bf151276f1dbe2ee28fde6a" args="(vtkInformation *, vtkInformationVector **, vtkInformationVector *)" -->
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          <td class="memname">virtual int vtkConnectivityFilter::RequestData           </td>
          <td>(</td>
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          <td class="paramname"> <em>request</em>, </td>
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          <td class="paramkey"></td>
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          <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>
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          <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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<p>
This is called by the superclass. This is the method you should override. 
<p>Reimplemented from <a class="el" href="a01790.html#c245179e9e4f4d4f83bf29fd4933b985">vtkUnstructuredGridAlgorithm</a>.</p>

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<a class="anchor" name="fdd9760ea2fe11312354805ba830568a"></a><!-- doxytag: member="vtkConnectivityFilter::FillInputPortInformation" ref="fdd9760ea2fe11312354805ba830568a" args="(int port, vtkInformation *info)" -->
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          <td class="memname">virtual int vtkConnectivityFilter::FillInputPortInformation           </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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          <td></td><td></td><td><code> [protected, virtual]</code></td>
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<p>
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="a01790.html#1eb860b284f61b78bd00d5776545bd87">vtkUnstructuredGridAlgorithm</a>.</p>

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<a class="anchor" name="086df5fbd85341ae205df33861d7b3f3"></a><!-- doxytag: member="vtkConnectivityFilter::TraverseAndMark" ref="086df5fbd85341ae205df33861d7b3f3" args="(vtkDataSet *input)" -->
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          <td class="memname">void vtkConnectivityFilter::TraverseAndMark           </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="a00374.html">vtkDataSet</a> *&nbsp;</td>
          <td class="paramname"> <em>input</em>          </td>
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          <td><code> [protected]</code></td>
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<p>

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<hr><h2>Member Data Documentation</h2>
<a class="anchor" name="03b5053b2abc9edc2e44bc883998f816"></a><!-- doxytag: member="vtkConnectivityFilter::ColorRegions" ref="03b5053b2abc9edc2e44bc883998f816" args="" -->
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          <td class="memname">int <a class="el" href="a00317.html#03b5053b2abc9edc2e44bc883998f816">vtkConnectivityFilter::ColorRegions</a><code> [protected]</code>          </td>
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<p>Definition at line <a class="el" href="a04281.html#l00158">158</a> of file <a class="el" href="a04281.html">vtkConnectivityFilter.h</a>.</p>

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<a class="anchor" name="8a37ea6fa0d829ec13a89adec6383f9f"></a><!-- doxytag: member="vtkConnectivityFilter::ExtractionMode" ref="8a37ea6fa0d829ec13a89adec6383f9f" args="" -->
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          <td class="memname">int <a class="el" href="a00317.html#8a37ea6fa0d829ec13a89adec6383f9f">vtkConnectivityFilter::ExtractionMode</a><code> [protected]</code>          </td>
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<p>Definition at line <a class="el" href="a04281.html#l00159">159</a> of file <a class="el" href="a04281.html">vtkConnectivityFilter.h</a>.</p>

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<a class="anchor" name="d20f160503bd02789c08baacb4215eb3"></a><!-- doxytag: member="vtkConnectivityFilter::Seeds" ref="d20f160503bd02789c08baacb4215eb3" args="" -->
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          <td class="memname"><a class="el" href="a00720.html">vtkIdList</a>* <a class="el" href="a00317.html#d20f160503bd02789c08baacb4215eb3">vtkConnectivityFilter::Seeds</a><code> [protected]</code>          </td>
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<p>Definition at line <a class="el" href="a04281.html#l00160">160</a> of file <a class="el" href="a04281.html">vtkConnectivityFilter.h</a>.</p>

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<a class="anchor" name="0be09bd14eb2aa9a9db612bde1ce9958"></a><!-- doxytag: member="vtkConnectivityFilter::SpecifiedRegionIds" ref="0be09bd14eb2aa9a9db612bde1ce9958" args="" -->
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          <td class="memname"><a class="el" href="a00720.html">vtkIdList</a>* <a class="el" href="a00317.html#0be09bd14eb2aa9a9db612bde1ce9958">vtkConnectivityFilter::SpecifiedRegionIds</a><code> [protected]</code>          </td>
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<p>Definition at line <a class="el" href="a04281.html#l00161">161</a> of file <a class="el" href="a04281.html">vtkConnectivityFilter.h</a>.</p>

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<a class="anchor" name="8f9f6b67cc095a187db92137da962157"></a><!-- doxytag: member="vtkConnectivityFilter::RegionSizes" ref="8f9f6b67cc095a187db92137da962157" args="" -->
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          <td class="memname"><a class="el" href="a00722.html">vtkIdTypeArray</a>* <a class="el" href="a00317.html#8f9f6b67cc095a187db92137da962157">vtkConnectivityFilter::RegionSizes</a><code> [protected]</code>          </td>
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<p>Definition at line <a class="el" href="a04281.html#l00162">162</a> of file <a class="el" href="a04281.html">vtkConnectivityFilter.h</a>.</p>

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<a class="anchor" name="b17505d7c2cf9a354eec15fe85fc5e94"></a><!-- doxytag: member="vtkConnectivityFilter::ClosestPoint" ref="b17505d7c2cf9a354eec15fe85fc5e94" args="[3]" -->
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          <td class="memname">double <a class="el" href="a00317.html#b17505d7c2cf9a354eec15fe85fc5e94">vtkConnectivityFilter::ClosestPoint</a>[3]<code> [protected]</code>          </td>
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<p>Definition at line <a class="el" href="a04281.html#l00164">164</a> of file <a class="el" href="a04281.html">vtkConnectivityFilter.h</a>.</p>

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<a class="anchor" name="cc81334f3399fdc8154d5ea50001a242"></a><!-- doxytag: member="vtkConnectivityFilter::ScalarConnectivity" ref="cc81334f3399fdc8154d5ea50001a242" args="" -->
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          <td class="memname">int <a class="el" href="a00317.html#cc81334f3399fdc8154d5ea50001a242">vtkConnectivityFilter::ScalarConnectivity</a><code> [protected]</code>          </td>
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<p>Definition at line <a class="el" href="a04281.html#l00166">166</a> of file <a class="el" href="a04281.html">vtkConnectivityFilter.h</a>.</p>

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<a class="anchor" name="cb5ccc4cf6eade3374944810cba7b22b"></a><!-- doxytag: member="vtkConnectivityFilter::ScalarRange" ref="cb5ccc4cf6eade3374944810cba7b22b" args="[2]" -->
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          <td class="memname">double <a class="el" href="a00317.html#cb5ccc4cf6eade3374944810cba7b22b">vtkConnectivityFilter::ScalarRange</a>[2]<code> [protected]</code>          </td>
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<p>Definition at line <a class="el" href="a04281.html#l00167">167</a> of file <a class="el" href="a04281.html">vtkConnectivityFilter.h</a>.</p>

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<hr>The documentation for this class was generated from the following file:<ul>
<li>dox/Graphics/<a class="el" href="a04281.html">vtkConnectivityFilter.h</a></ul>
</div>
<hr size="1"><address style="text-align: right;"><small>Generated on Wed Jun 3 18:57:56 2009 for VTK by&nbsp;
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