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<h1>vtkScalarTree Class Reference</h1><!-- doxytag: class="vtkScalarTree" --><!-- doxytag: inherits="vtkObject" --><code>#include <<a class="el" href="a04145.html">vtkScalarTree.h</a>></code>
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Inheritance diagram for vtkScalarTree:</div>
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Collaboration diagram for vtkScalarTree:</div>
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<a href="a14305.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>
organize data according to scalar values (used to accelerate contouring operations)
<p>
<a class="el" href="a01515.html" title="organize data according to scalar values (used to accelerate contouring operations)...">vtkScalarTree</a> is an abstract class that defines the API to concrete scalar tree subclasses. A scalar tree is a data structure that organizes data according to its scalar value. This allows rapid access to data for those algorithms that access the data based on scalar value. For example, isocontouring operates on cells based on the scalar (isocontour) value.<p>
To use subclasses of this class, you must specify a dataset to operate on, and then specify a scalar value in the <a class="el" href="a01515.html#be735dcde50751092ba174b8e01881fd">InitTraversal()</a> method. Then calls to <a class="el" href="a01515.html#056795584fb434a197836b2c3dcce575">GetNextCell()</a> return cells whose scalar data contains the scalar value specified.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="a01554.html" title="organize data according to scalar values (used to accelerate contouring operations)...">vtkSimpleScalarTree</a> </dd></dl>
<p>Definition at line <a class="el" href="a04145.html#l00045">45</a> of file <a class="el" href="a04145.html">vtkScalarTree.h</a>.</p>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">typedef <a class="el" href="a01084.html">vtkObject</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a01515.html#6ecb7ae710ebf80d4aa9f39cbbcb65ad">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 * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01515.html#6d5ecba4dab3e3b1ffa3227031de2fbf">GetClassName</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="a01515.html#6dba76a9c1fb23cf0aecde9001204ac1">IsA</a> (const char *type)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a01515.html#070baf761808f3ef4869dfe1be35d83b">PrintSelf</a> (ostream &os, <a class="el" href="a00869.html">vtkIndent</a> indent)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="a01515.html#a9c2c051fd0c7d3106e1d0eea46acbeb">BuildTree</a> ()=0</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="a01515.html#9c27377dff40b93eb80d4c0ca43a72e0">Initialize</a> ()=0</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="a01515.html#be735dcde50751092ba174b8e01881fd">InitTraversal</a> (double scalarValue)=0</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="a01515.html#b53d479811edb349635dcb01bcac45de">SetDataSet</a> (<a class="el" href="a00374.html">vtkDataSet</a> *)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual <a class="el" href="a00374.html">vtkDataSet</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01515.html#7592e76df03d14af69b16888e7b6728a">GetDataSet</a> ()</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual <a class="el" href="a00240.html">vtkCell</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01515.html#056795584fb434a197836b2c3dcce575">GetNextCell</a> (<a class="el" href="a02149.html#20bd6b6dedfe1bbb096c50354d52cc7e">vtkIdType</a> &cellId, <a class="el" href="a00720.html">vtkIdList</a> *&ptIds, <a class="el" href="a00356.html">vtkDataArray</a> *cellScalars)=0</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 </td><td class="memItemRight" valign="bottom"><a class="el" href="a01515.html#f2fdd28717f364ea1b34ced084ca805a">IsTypeOf</a> (const char *type)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static <a class="el" href="a01515.html">vtkScalarTree</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01515.html#d3c7dbe740339c156379048b71709184">SafeDownCast</a> (<a class="el" href="a01084.html">vtkObject</a> *o)</td></tr>
<tr><td colspan="2"><br><h2>Protected Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a01515.html#d66c3fb3f06b864d8e8ff322e522b8e1">vtkScalarTree</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a01515.html#f5d8ce66b98aa2d44832cc51ac8ebdf9">~vtkScalarTree</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="a01515.html#cd00f36920b9a353b091becad1a175b1">ReportReferences</a> (<a class="el" href="a00572.html">vtkGarbageCollector</a> *)</td></tr>
<tr><td colspan="2"><br><h2>Protected Attributes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a00374.html">vtkDataSet</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01515.html#672be49de5813c81b35c9530980e74e3">DataSet</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a00356.html">vtkDataArray</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01515.html#ceed95afb7ead12c99df721f0dc77d40">Scalars</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a01719.html">vtkTimeStamp</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a01515.html#5ad2fef5d662961d667f7b8fbf3f96c3">BuildTime</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="a01515.html#74da71a91c5e6a7c3ea1769734719e84">ScalarValue</a></td></tr>
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<hr><h2>Member Typedef Documentation</h2>
<a class="anchor" name="6ecb7ae710ebf80d4aa9f39cbbcb65ad"></a><!-- doxytag: member="vtkScalarTree::Superclass" ref="6ecb7ae710ebf80d4aa9f39cbbcb65ad" args="" -->
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<td class="memname">typedef <a class="el" href="a01084.html">vtkObject</a> <a class="el" href="a01084.html">vtkScalarTree::Superclass</a> </td>
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<p>Reimplemented from <a class="el" href="a01084.html#11429dee69f4b562e03e07b453dae9b5">vtkObject</a>.</p>
<p>Reimplemented in <a class="el" href="a01554.html#aa664ea9bd0a0057dac074ce26903acc">vtkSimpleScalarTree</a>.</p>
<p>Definition at line <a class="el" href="a04145.html#l00048">48</a> of file <a class="el" href="a04145.html">vtkScalarTree.h</a>.</p>
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<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="d66c3fb3f06b864d8e8ff322e522b8e1"></a><!-- doxytag: member="vtkScalarTree::vtkScalarTree" ref="d66c3fb3f06b864d8e8ff322e522b8e1" args="()" -->
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<td class="memname">vtkScalarTree::vtkScalarTree </td>
<td>(</td>
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<td> ) </td>
<td><code> [protected]</code></td>
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<a class="anchor" name="f5d8ce66b98aa2d44832cc51ac8ebdf9"></a><!-- doxytag: member="vtkScalarTree::~vtkScalarTree" ref="f5d8ce66b98aa2d44832cc51ac8ebdf9" args="()" -->
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<td class="memname">vtkScalarTree::~vtkScalarTree </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td><code> [protected]</code></td>
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="6d5ecba4dab3e3b1ffa3227031de2fbf"></a><!-- doxytag: member="vtkScalarTree::GetClassName" ref="6d5ecba4dab3e3b1ffa3227031de2fbf" args="()" -->
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<td class="memname">virtual const char* vtkScalarTree::GetClassName </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td><code> [virtual]</code></td>
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<p>Reimplemented from <a class="el" href="a01084.html#d95975c85c2896ea32ff4cf1f8de0886">vtkObject</a>.</p>
<p>Reimplemented in <a class="el" href="a01554.html#4d0ff2953a2c80d33e88794f2481ede5">vtkSimpleScalarTree</a>.</p>
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<a class="anchor" name="f2fdd28717f364ea1b34ced084ca805a"></a><!-- doxytag: member="vtkScalarTree::IsTypeOf" ref="f2fdd28717f364ea1b34ced084ca805a" args="(const char *type)" -->
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<td class="memname">static int vtkScalarTree::IsTypeOf </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"> <em>name</em> </td>
<td> ) </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="a01084.html#e9548a248bce0f02f73bbcccd0a9489e">vtkObject</a>.</p>
<p>Reimplemented in <a class="el" href="a01554.html#9bbfabd9189a6d84c4c68e0f05edcb00">vtkSimpleScalarTree</a>.</p>
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<a class="anchor" name="6dba76a9c1fb23cf0aecde9001204ac1"></a><!-- doxytag: member="vtkScalarTree::IsA" ref="6dba76a9c1fb23cf0aecde9001204ac1" args="(const char *type)" -->
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<td class="memname">virtual int vtkScalarTree::IsA </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"> <em>name</em> </td>
<td> ) </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="a01084.html#831e57b04e46827a7098aa81abadee69">vtkObject</a>.</p>
<p>Reimplemented in <a class="el" href="a01554.html#63d96281c4b01793f38f4a5f1f388f48">vtkSimpleScalarTree</a>.</p>
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<a class="anchor" name="d3c7dbe740339c156379048b71709184"></a><!-- doxytag: member="vtkScalarTree::SafeDownCast" ref="d3c7dbe740339c156379048b71709184" args="(vtkObject *o)" -->
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<td class="memname">static <a class="el" href="a01515.html">vtkScalarTree</a>* vtkScalarTree::SafeDownCast </td>
<td>(</td>
<td class="paramtype"><a class="el" href="a01084.html">vtkObject</a> * </td>
<td class="paramname"> <em>o</em> </td>
<td> ) </td>
<td><code> [static]</code></td>
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<p>Reimplemented from <a class="el" href="a01084.html#bb9351f076544c427ee91229dce83abe">vtkObject</a>.</p>
<p>Reimplemented in <a class="el" href="a01554.html#88f2bc9127db2b73c2fe98817626681f">vtkSimpleScalarTree</a>.</p>
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<a class="anchor" name="070baf761808f3ef4869dfe1be35d83b"></a><!-- doxytag: member="vtkScalarTree::PrintSelf" ref="070baf761808f3ef4869dfe1be35d83b" args="(ostream &os, vtkIndent indent)" -->
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<td class="memname">void vtkScalarTree::PrintSelf </td>
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<td class="paramtype">ostream & </td>
<td class="paramname"> <em>os</em>, </td>
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<td class="paramname"> <em>indent</em></td><td> </td>
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<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="a01084.html#bf3dbb4154289b56a12483eee3866263">vtkObject</a>.</p>
<p>Reimplemented in <a class="el" href="a01554.html#633f37c1c560f803f9dff297e1ae1b6d">vtkSimpleScalarTree</a>.</p>
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<a class="anchor" name="b53d479811edb349635dcb01bcac45de"></a><!-- doxytag: member="vtkScalarTree::SetDataSet" ref="b53d479811edb349635dcb01bcac45de" args="(vtkDataSet *)" -->
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<td class="memname">virtual void vtkScalarTree::SetDataSet </td>
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<td class="paramtype"><a class="el" href="a00374.html">vtkDataSet</a> * </td>
<td class="paramname"> </td>
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<td><code> [virtual]</code></td>
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Build the tree from the points/cells defining this dataset.
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<a class="anchor" name="7592e76df03d14af69b16888e7b6728a"></a><!-- doxytag: member="vtkScalarTree::GetDataSet" ref="7592e76df03d14af69b16888e7b6728a" args="()" -->
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<td class="memname">virtual <a class="el" href="a00374.html">vtkDataSet</a>* vtkScalarTree::GetDataSet </td>
<td>(</td>
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<td> ) </td>
<td><code> [virtual]</code></td>
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Build the tree from the points/cells defining this dataset.
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<a class="anchor" name="a9c2c051fd0c7d3106e1d0eea46acbeb"></a><!-- doxytag: member="vtkScalarTree::BuildTree" ref="a9c2c051fd0c7d3106e1d0eea46acbeb" args="()=0" -->
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<td class="memname">virtual void vtkScalarTree::BuildTree </td>
<td>(</td>
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<td><code> [pure virtual]</code></td>
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Construct the scalar tree from the dataset provided. Checks build times and modified time from input and reconstructs the tree if necessary.
<p>Implemented in <a class="el" href="a01554.html#77738e6b4d735fc9853258a56ab02fe1">vtkSimpleScalarTree</a>.</p>
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<a class="anchor" name="9c27377dff40b93eb80d4c0ca43a72e0"></a><!-- doxytag: member="vtkScalarTree::Initialize" ref="9c27377dff40b93eb80d4c0ca43a72e0" args="()=0" -->
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<td class="memname">virtual void vtkScalarTree::Initialize </td>
<td>(</td>
<td class="paramname"> </td>
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<td><code> [pure virtual]</code></td>
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Initialize locator. Frees memory and resets object as appropriate.
<p>Implemented in <a class="el" href="a01554.html#fd2894c849944f000f5e4870c5dc4b53">vtkSimpleScalarTree</a>.</p>
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<a class="anchor" name="be735dcde50751092ba174b8e01881fd"></a><!-- doxytag: member="vtkScalarTree::InitTraversal" ref="be735dcde50751092ba174b8e01881fd" args="(double scalarValue)=0" -->
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<td class="memname">virtual void vtkScalarTree::InitTraversal </td>
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<td class="paramtype">double </td>
<td class="paramname"> <em>scalarValue</em> </td>
<td> ) </td>
<td><code> [pure virtual]</code></td>
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Begin to traverse the cells based on a scalar value. Returned cells will have scalar values that span the scalar value specified.
<p>Implemented in <a class="el" href="a01554.html#c7705107620cc7dc6a9cfe39d08f1846">vtkSimpleScalarTree</a>.</p>
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<a class="anchor" name="056795584fb434a197836b2c3dcce575"></a><!-- doxytag: member="vtkScalarTree::GetNextCell" ref="056795584fb434a197836b2c3dcce575" args="(vtkIdType &cellId, vtkIdList *&ptIds, vtkDataArray *cellScalars)=0" -->
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<td class="memname">virtual <a class="el" href="a00240.html">vtkCell</a>* vtkScalarTree::GetNextCell </td>
<td>(</td>
<td class="paramtype"><a class="el" href="a02149.html#20bd6b6dedfe1bbb096c50354d52cc7e">vtkIdType</a> & </td>
<td class="paramname"> <em>cellId</em>, </td>
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<td class="paramtype"><a class="el" href="a00720.html">vtkIdList</a> *& </td>
<td class="paramname"> <em>ptIds</em>, </td>
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<td class="paramtype"><a class="el" href="a00356.html">vtkDataArray</a> * </td>
<td class="paramname"> <em>cellScalars</em></td><td> </td>
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<td>)</td>
<td></td><td></td><td><code> [pure virtual]</code></td>
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Return the next cell that may contain scalar value specified to initialize traversal. The value NULL is returned if the list is exhausted. Make sure that <a class="el" href="a01515.html#be735dcde50751092ba174b8e01881fd">InitTraversal()</a> has been invoked first or you'll get erratic behavior.
<p>Implemented in <a class="el" href="a01554.html#c055675f6d11d9f4011a9b1e1f6381dc">vtkSimpleScalarTree</a>.</p>
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<a class="anchor" name="cd00f36920b9a353b091becad1a175b1"></a><!-- doxytag: member="vtkScalarTree::ReportReferences" ref="cd00f36920b9a353b091becad1a175b1" args="(vtkGarbageCollector *)" -->
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<td class="memname">virtual void vtkScalarTree::ReportReferences </td>
<td>(</td>
<td class="paramtype"><a class="el" href="a00572.html">vtkGarbageCollector</a> * </td>
<td class="paramname"> </td>
<td> ) </td>
<td><code> [protected, virtual]</code></td>
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<p>Reimplemented from <a class="el" href="a01085.html#c6aa962bedb220056f91add33044f24e">vtkObjectBase</a>.</p>
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<hr><h2>Member Data Documentation</h2>
<a class="anchor" name="672be49de5813c81b35c9530980e74e3"></a><!-- doxytag: member="vtkScalarTree::DataSet" ref="672be49de5813c81b35c9530980e74e3" args="" -->
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<td class="memname"><a class="el" href="a00374.html">vtkDataSet</a>* <a class="el" href="a01515.html#672be49de5813c81b35c9530980e74e3">vtkScalarTree::DataSet</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a04145.html#l00082">82</a> of file <a class="el" href="a04145.html">vtkScalarTree.h</a>.</p>
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<a class="anchor" name="ceed95afb7ead12c99df721f0dc77d40"></a><!-- doxytag: member="vtkScalarTree::Scalars" ref="ceed95afb7ead12c99df721f0dc77d40" args="" -->
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<td class="memname"><a class="el" href="a00356.html">vtkDataArray</a>* <a class="el" href="a01515.html#ceed95afb7ead12c99df721f0dc77d40">vtkScalarTree::Scalars</a><code> [protected]</code> </td>
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<p>Reimplemented in <a class="el" href="a01554.html#1a71ce55884189d34098de4f7910afe3">vtkSimpleScalarTree</a>.</p>
<p>Definition at line <a class="el" href="a04145.html#l00083">83</a> of file <a class="el" href="a04145.html">vtkScalarTree.h</a>.</p>
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<a class="anchor" name="5ad2fef5d662961d667f7b8fbf3f96c3"></a><!-- doxytag: member="vtkScalarTree::BuildTime" ref="5ad2fef5d662961d667f7b8fbf3f96c3" args="" -->
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<td class="memname"><a class="el" href="a01719.html">vtkTimeStamp</a> <a class="el" href="a01515.html#5ad2fef5d662961d667f7b8fbf3f96c3">vtkScalarTree::BuildTime</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a04145.html#l00085">85</a> of file <a class="el" href="a04145.html">vtkScalarTree.h</a>.</p>
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<a class="anchor" name="74da71a91c5e6a7c3ea1769734719e84"></a><!-- doxytag: member="vtkScalarTree::ScalarValue" ref="74da71a91c5e6a7c3ea1769734719e84" args="" -->
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<td class="memname">double <a class="el" href="a01515.html#74da71a91c5e6a7c3ea1769734719e84">vtkScalarTree::ScalarValue</a><code> [protected]</code> </td>
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<p>
<p>Definition at line <a class="el" href="a04145.html#l00086">86</a> of file <a class="el" href="a04145.html">vtkScalarTree.h</a>.</p>
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<hr>The documentation for this class was generated from the following file:<ul>
<li>dox/Filtering/<a class="el" href="a04145.html">vtkScalarTree.h</a></ul>
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<hr size="1"><address style="text-align: right;"><small>Generated on Wed Jun 3 19:32:49 2009 for VTK by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.6 </small></address>
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