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<h1>vtkUnstructuredGridPreIntegration Class Reference</h1><!-- doxytag: class="vtkUnstructuredGridPreIntegration" --><!-- doxytag: inherits="vtkUnstructuredGridVolumeRayIntegrator" --><code>#include <<a class="el" href="a05420.html">vtkUnstructuredGridPreIntegration.h</a>></code>
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Inheritance diagram for vtkUnstructuredGridPreIntegration:</div>
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Collaboration diagram for vtkUnstructuredGridPreIntegration:</div>
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<a href="a15610.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>
performs ray integration with pre-integration tables.
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<a class="el" href="a01798.html" title="performs ray integration with pre-integration tables.">vtkUnstructuredGridPreIntegration</a> performs ray integration by looking into a precomputed table. The result should be equivalent to that computed by <a class="el" href="a01796.html" title="performs piecewise linear ray integration.">vtkUnstructuredGridLinearRayIntegrator</a> and <a class="el" href="a01797.html" title="performs piecewise linear ray integration.">vtkUnstructuredGridPartialPreIntegration</a>, but faster than either one. The pre-integration algorithm was first introduced by Roettger, Kraus, and Ertl in "Hardware-Accelerated Volume And Isosurface Rendering Based On Cell-Projection."<p>
Due to table size limitations, a table can only be indexed by independent scalars. Thus, dependent scalars are not supported.<p>
<dl class="user" compact><dt><b>Tests:</b></dt><dd><a class="el" href="c2_vtk_t_17.html#c2_vtk_t_vtkUnstructuredGridPreIntegration">vtkUnstructuredGridPreIntegration (Tests)</a> </dd></dl>
<p>Definition at line <a class="el" href="a05420.html#l00053">53</a> of file <a class="el" href="a05420.html">vtkUnstructuredGridPreIntegration.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="a01807.html">vtkUnstructuredGridVolumeRayIntegrator</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#517762ffe7a57fecb17bcb3a9627c740">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="a01798.html#4c2e7f16c5f807cfc5fce7d4f0edb255">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="a01798.html#a1fe1d188e33f92e9c3deb4b1fe71024">IsA</a> (const char *type)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#0d259f6f75d68f583706a4ee61e93b61">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="a01798.html#f47bc28fda2f63408c68b6e5ebb3c221">Initialize</a> (<a class="el" href="a01839.html">vtkVolume</a> *volume, <a class="el" href="a00356.html">vtkDataArray</a> *scalars)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#e68336025065a7588fe96eb87e4c163c">Integrate</a> (<a class="el" href="a00436.html">vtkDoubleArray</a> *intersectionLengths, <a class="el" href="a00356.html">vtkDataArray</a> *nearIntersections, <a class="el" href="a00356.html">vtkDataArray</a> *farIntersections, float color[4])</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual float * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#a410ba08ad31813cb1f8cae252633323">GetPreIntegrationTable</a> (int component=0)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual <br>
<a class="el" href="a01807.html">vtkUnstructuredGridVolumeRayIntegrator</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#2102da2fa856c223eacb47e25afd478b">GetIntegrator</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#e3fc25bcd704a808f3a4326f563746b7">SetIntegrator</a> (<a class="el" href="a01807.html">vtkUnstructuredGridVolumeRayIntegrator</a> *)</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="a01798.html#a5fef4c41faac566029ec58058a16ba3">SetIntegrationTableScalarResolution</a> (int)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#834bc5143c76d9caa26103abcdecfea3">GetIntegrationTableScalarResolution</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#1fba9425356cffcd94d1b74ef2b070b8">SetIntegrationTableLengthResolution</a> (int)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#96b13dcfb6461a6d0e6a035eee4130aa">GetIntegrationTableLengthResolution</a> ()</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual double </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#60c600ac0a1db2eefc8fba09fc51c6a1">GetIntegrationTableScalarShift</a> (int component=0)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual double </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#3044cc2d911de9e07d5cfba98e0070bc">GetIntegrationTableScalarScale</a> (int component=0)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual double </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#6d414137e893661d303ed6eed9fb5dba">GetIntegrationTableLengthScale</a> ()</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#aa715a346a0ddc0976c42d92d509c79f">GetIncrementalPreIntegration</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#b3b48c17f7e1fd0fa787f42457e17953">SetIncrementalPreIntegration</a> (int)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#754815570bd5e7d746ba6f69aa0db1f5">IncrementalPreIntegrationOn</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#cbfefacee558e873564404db6a0ae614">IncrementalPreIntegrationOff</a> ()</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">float * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#52748418fe18137598dfb60467a168d1">GetTableEntry</a> (double scalar_front, double scalar_back, double lenth, int component=0)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">float * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#1b3ac3e0a128a6e512f5aad5343f1d75">GetIndexedTableEntry</a> (int scalar_front_index, int scalar_back_index, int length_index, int component=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="a01798.html#1cba5ee32753089f83020cd545b4753f">IsTypeOf</a> (const char *type)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static <br>
<a class="el" href="a01798.html">vtkUnstructuredGridPreIntegration</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#42a678e33f44898317896a1e13d1752d">SafeDownCast</a> (<a class="el" href="a01084.html">vtkObject</a> *o)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static <br>
<a class="el" href="a01798.html">vtkUnstructuredGridPreIntegration</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#bd3572acdf1b6476753b8bffe5c0a86a">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"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#9e4f28e6d94ac3c4253d62f631d91b89">vtkUnstructuredGridPreIntegration</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#9f2ac22f9c684f1cb1067524b1973ab4">~vtkUnstructuredGridPreIntegration</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#8c28168111b89e37b7cc951f24f75239">BuildPreIntegrationTables</a> (<a class="el" href="a00356.html">vtkDataArray</a> *scalars)</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="a01807.html">vtkUnstructuredGridVolumeRayIntegrator</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#f79bf00a109313a0dcb7955cbbf47fba">Integrator</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a01839.html">vtkVolume</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#28f0bf8ee99c5171a6f4bf718b8499e0">Volume</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a01844.html">vtkVolumeProperty</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#5abb2960ffb003fd47d609e043bfa984">Property</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#1fe74f0e9e9fe3fa87ae3ceee2e5406e">MaxLength</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#f08ea1081645dc8c5b6a37b04876172d">NumComponents</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">float ** </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#6c1a15f7eb138a34ee089a125de506e8">IntegrationTable</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">double * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#2fa8a793ed0d00a72337d90b7565a8e8">IntegrationTableScalarShift</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">double * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#96ceec43c2e9f12566cc63938e6c3b04">IntegrationTableScalarScale</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#289e71ae9f32243c7952500b546d88af">IntegrationTableLengthScale</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="a01798.html#0c2162232ee641f803d83457edeba54e">IntegrationTableBuilt</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#5a2834597bec29e54f419dad4a941bd5">IntegrationTableScalarResolution</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#437941d4dc1e7caee0b497d5ae2dfdb5">IntegrationTableLengthResolution</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="a01798.html#79ca94952e5bd83bea2faf1128fee30d">IncrementalPreIntegration</a></td></tr>
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<hr><h2>Member Typedef Documentation</h2>
<a class="anchor" name="517762ffe7a57fecb17bcb3a9627c740"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::Superclass" ref="517762ffe7a57fecb17bcb3a9627c740" args="" -->
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<td class="memname">typedef <a class="el" href="a01807.html">vtkUnstructuredGridVolumeRayIntegrator</a> <a class="el" href="a01807.html">vtkUnstructuredGridPreIntegration::Superclass</a> </td>
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<p>
<p>Reimplemented from <a class="el" href="a01807.html#632eafb35d829b1be999dea6e09f4524">vtkUnstructuredGridVolumeRayIntegrator</a>.</p>
<p>Definition at line <a class="el" href="a05420.html#l00057">57</a> of file <a class="el" href="a05420.html">vtkUnstructuredGridPreIntegration.h</a>.</p>
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<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="9e4f28e6d94ac3c4253d62f631d91b89"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::vtkUnstructuredGridPreIntegration" ref="9e4f28e6d94ac3c4253d62f631d91b89" args="()" -->
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<td class="memname">vtkUnstructuredGridPreIntegration::vtkUnstructuredGridPreIntegration </td>
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<td><code> [protected]</code></td>
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<a class="anchor" name="9f2ac22f9c684f1cb1067524b1973ab4"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::~vtkUnstructuredGridPreIntegration" ref="9f2ac22f9c684f1cb1067524b1973ab4" args="()" -->
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<td class="memname">vtkUnstructuredGridPreIntegration::~vtkUnstructuredGridPreIntegration </td>
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<td><code> [protected]</code></td>
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="4c2e7f16c5f807cfc5fce7d4f0edb255"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::GetClassName" ref="4c2e7f16c5f807cfc5fce7d4f0edb255" args="()" -->
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<td class="memname">virtual const char* vtkUnstructuredGridPreIntegration::GetClassName </td>
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<td class="paramname"> </td>
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<td><code> [virtual]</code></td>
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<p>
<p>Reimplemented from <a class="el" href="a01807.html#bc96dc5430d48fdcd69db64a76388517">vtkUnstructuredGridVolumeRayIntegrator</a>.</p>
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<a class="anchor" name="1cba5ee32753089f83020cd545b4753f"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::IsTypeOf" ref="1cba5ee32753089f83020cd545b4753f" args="(const char *type)" -->
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<td class="memname">static int vtkUnstructuredGridPreIntegration::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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<p>
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="a01807.html#af68ca267cf2598322185b39fd7e3be3">vtkUnstructuredGridVolumeRayIntegrator</a>.</p>
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<a class="anchor" name="a1fe1d188e33f92e9c3deb4b1fe71024"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::IsA" ref="a1fe1d188e33f92e9c3deb4b1fe71024" args="(const char *type)" -->
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<td class="memname">virtual int vtkUnstructuredGridPreIntegration::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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<p>
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="a01807.html#372fb8213c5c3e7e9ec7f6f2654d70f5">vtkUnstructuredGridVolumeRayIntegrator</a>.</p>
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<a class="anchor" name="42a678e33f44898317896a1e13d1752d"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::SafeDownCast" ref="42a678e33f44898317896a1e13d1752d" args="(vtkObject *o)" -->
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<td class="memname">static <a class="el" href="a01798.html">vtkUnstructuredGridPreIntegration</a>* vtkUnstructuredGridPreIntegration::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>
<p>Reimplemented from <a class="el" href="a01807.html#12dc1daadd47baca15c5c68b8ff6375b">vtkUnstructuredGridVolumeRayIntegrator</a>.</p>
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<a class="anchor" name="bd3572acdf1b6476753b8bffe5c0a86a"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::New" ref="bd3572acdf1b6476753b8bffe5c0a86a" args="()" -->
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<td class="memname">static <a class="el" href="a01798.html">vtkUnstructuredGridPreIntegration</a>* vtkUnstructuredGridPreIntegration::New </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td><code> [static]</code></td>
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<p>
Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
<p>Reimplemented from <a class="el" href="a01084.html#4d5b227267c076d6f9e38483370b6612">vtkObject</a>.</p>
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<a class="anchor" name="0d259f6f75d68f583706a4ee61e93b61"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::PrintSelf" ref="0d259f6f75d68f583706a4ee61e93b61" args="(ostream &os, vtkIndent indent)" -->
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<td class="memname">virtual void vtkUnstructuredGridPreIntegration::PrintSelf </td>
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<td class="paramtype">ostream & </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> </td>
<td class="paramname"> <em>indent</em></td><td> </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="a01807.html#c1f0c958c64ef2d20c3950fa70eba003">vtkUnstructuredGridVolumeRayIntegrator</a>.</p>
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<a class="anchor" name="f47bc28fda2f63408c68b6e5ebb3c221"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::Initialize" ref="f47bc28fda2f63408c68b6e5ebb3c221" args="(vtkVolume *volume, vtkDataArray *scalars)" -->
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<td class="memname">virtual void vtkUnstructuredGridPreIntegration::Initialize </td>
<td>(</td>
<td class="paramtype"><a class="el" href="a01839.html">vtkVolume</a> * </td>
<td class="paramname"> <em>volume</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="a00356.html">vtkDataArray</a> * </td>
<td class="paramname"> <em>scalars</em></td><td> </td>
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<td></td>
<td>)</td>
<td></td><td></td><td><code> [virtual]</code></td>
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<p>
Set up the integrator with the given properties and scalars.
<p>Implements <a class="el" href="a01807.html#1bf6fd3d88e2dcb7710f28b3d5de405d">vtkUnstructuredGridVolumeRayIntegrator</a>.</p>
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<a class="anchor" name="e68336025065a7588fe96eb87e4c163c"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::Integrate" ref="e68336025065a7588fe96eb87e4c163c" args="(vtkDoubleArray *intersectionLengths, vtkDataArray *nearIntersections, vtkDataArray *farIntersections, float color[4])" -->
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<td class="memname">virtual void vtkUnstructuredGridPreIntegration::Integrate </td>
<td>(</td>
<td class="paramtype"><a class="el" href="a00436.html">vtkDoubleArray</a> * </td>
<td class="paramname"> <em>intersectionLengths</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="a00356.html">vtkDataArray</a> * </td>
<td class="paramname"> <em>nearIntersections</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="a00356.html">vtkDataArray</a> * </td>
<td class="paramname"> <em>farIntersections</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">float </td>
<td class="paramname"> <em>color</em>[4]</td><td> </td>
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<td></td>
<td>)</td>
<td></td><td></td><td><code> [virtual]</code></td>
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<p>
Given a set of intersections (defined by the three arrays), compute the peicewise integration of the array in front to back order. /c intersectionLengths holds the lengths of each peicewise segment. /c nearIntersections and /c farIntersections hold the scalar values at the front and back of each segment. /c color should contain the RGBA value of the volume in front of the segments passed in, and the result will be placed back into /c color.
<p>Implements <a class="el" href="a01807.html#a0ddf237a4541d9e21389b5e6cb26d2d">vtkUnstructuredGridVolumeRayIntegrator</a>.</p>
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<a class="anchor" name="2102da2fa856c223eacb47e25afd478b"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::GetIntegrator" ref="2102da2fa856c223eacb47e25afd478b" args="()" -->
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<td class="memname">virtual <a class="el" href="a01807.html">vtkUnstructuredGridVolumeRayIntegrator</a>* vtkUnstructuredGridPreIntegration::GetIntegrator </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td><code> [virtual]</code></td>
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<p>
The class used to fill the pre integration table. By default, a <a class="el" href="a01797.html" title="performs piecewise linear ray integration.">vtkUnstructuredGridPartialPreIntegration</a> is built.
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<a class="anchor" name="e3fc25bcd704a808f3a4326f563746b7"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::SetIntegrator" ref="e3fc25bcd704a808f3a4326f563746b7" args="(vtkUnstructuredGridVolumeRayIntegrator *)" -->
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<td class="memname">virtual void vtkUnstructuredGridPreIntegration::SetIntegrator </td>
<td>(</td>
<td class="paramtype"><a class="el" href="a01807.html">vtkUnstructuredGridVolumeRayIntegrator</a> * </td>
<td class="paramname"> </td>
<td> ) </td>
<td><code> [virtual]</code></td>
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<p>
The class used to fill the pre integration table. By default, a <a class="el" href="a01797.html" title="performs piecewise linear ray integration.">vtkUnstructuredGridPartialPreIntegration</a> is built.
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<a class="anchor" name="a5fef4c41faac566029ec58058a16ba3"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::SetIntegrationTableScalarResolution" ref="a5fef4c41faac566029ec58058a16ba3" args="(int)" -->
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<td class="memname">virtual void vtkUnstructuredGridPreIntegration::SetIntegrationTableScalarResolution </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> </td>
<td> ) </td>
<td><code> [virtual]</code></td>
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<p>
Set/Get the size of the integration table built.
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<a class="anchor" name="834bc5143c76d9caa26103abcdecfea3"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::GetIntegrationTableScalarResolution" ref="834bc5143c76d9caa26103abcdecfea3" args="()" -->
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<td class="memname">virtual int vtkUnstructuredGridPreIntegration::GetIntegrationTableScalarResolution </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td><code> [virtual]</code></td>
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<p>
Set/Get the size of the integration table built.
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<a class="anchor" name="1fba9425356cffcd94d1b74ef2b070b8"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::SetIntegrationTableLengthResolution" ref="1fba9425356cffcd94d1b74ef2b070b8" args="(int)" -->
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<td class="memname">virtual void vtkUnstructuredGridPreIntegration::SetIntegrationTableLengthResolution </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> </td>
<td> ) </td>
<td><code> [virtual]</code></td>
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<p>
Set/Get the size of the integration table built.
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<a class="anchor" name="96b13dcfb6461a6d0e6a035eee4130aa"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::GetIntegrationTableLengthResolution" ref="96b13dcfb6461a6d0e6a035eee4130aa" args="()" -->
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<td class="memname">virtual int vtkUnstructuredGridPreIntegration::GetIntegrationTableLengthResolution </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td><code> [virtual]</code></td>
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<p>
Set/Get the size of the integration table built.
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<a class="anchor" name="60c600ac0a1db2eefc8fba09fc51c6a1"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::GetIntegrationTableScalarShift" ref="60c600ac0a1db2eefc8fba09fc51c6a1" args="(int component=0)" -->
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<td class="memname">virtual double vtkUnstructuredGridPreIntegration::GetIntegrationTableScalarShift </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>component</em> = <code>0</code> </td>
<td> ) </td>
<td><code> [virtual]</code></td>
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<p>
Get how an integration table is indexed.
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<a class="anchor" name="3044cc2d911de9e07d5cfba98e0070bc"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::GetIntegrationTableScalarScale" ref="3044cc2d911de9e07d5cfba98e0070bc" args="(int component=0)" -->
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<td class="memname">virtual double vtkUnstructuredGridPreIntegration::GetIntegrationTableScalarScale </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>component</em> = <code>0</code> </td>
<td> ) </td>
<td><code> [virtual]</code></td>
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<p>
Get how an integration table is indexed.
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<a class="anchor" name="6d414137e893661d303ed6eed9fb5dba"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::GetIntegrationTableLengthScale" ref="6d414137e893661d303ed6eed9fb5dba" args="()" -->
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<td class="memname">virtual double vtkUnstructuredGridPreIntegration::GetIntegrationTableLengthScale </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td><code> [virtual]</code></td>
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<p>
Get how an integration table is indexed.
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<a class="anchor" name="aa715a346a0ddc0976c42d92d509c79f"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::GetIncrementalPreIntegration" ref="aa715a346a0ddc0976c42d92d509c79f" args="()" -->
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<td class="memname">virtual int vtkUnstructuredGridPreIntegration::GetIncrementalPreIntegration </td>
<td>(</td>
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<td><code> [virtual]</code></td>
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Get/set whether to use incremental pre-integration (by default it's on). Incremental pre-integration is much faster but can introduce error due to numerical imprecision. Under most circumstances, the error is not noticable.
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<a class="anchor" name="b3b48c17f7e1fd0fa787f42457e17953"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::SetIncrementalPreIntegration" ref="b3b48c17f7e1fd0fa787f42457e17953" args="(int)" -->
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<td class="memname">virtual void vtkUnstructuredGridPreIntegration::SetIncrementalPreIntegration </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> </td>
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<td><code> [virtual]</code></td>
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<p>
Get/set whether to use incremental pre-integration (by default it's on). Incremental pre-integration is much faster but can introduce error due to numerical imprecision. Under most circumstances, the error is not noticable.
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<a class="anchor" name="754815570bd5e7d746ba6f69aa0db1f5"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::IncrementalPreIntegrationOn" ref="754815570bd5e7d746ba6f69aa0db1f5" args="()" -->
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<td class="memname">virtual void vtkUnstructuredGridPreIntegration::IncrementalPreIntegrationOn </td>
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<td class="paramname"> </td>
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<td><code> [virtual]</code></td>
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<p>
Get/set whether to use incremental pre-integration (by default it's on). Incremental pre-integration is much faster but can introduce error due to numerical imprecision. Under most circumstances, the error is not noticable.
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<a class="anchor" name="cbfefacee558e873564404db6a0ae614"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::IncrementalPreIntegrationOff" ref="cbfefacee558e873564404db6a0ae614" args="()" -->
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<td class="memname">virtual void vtkUnstructuredGridPreIntegration::IncrementalPreIntegrationOff </td>
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<td><code> [virtual]</code></td>
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<p>
Get/set whether to use incremental pre-integration (by default it's on). Incremental pre-integration is much faster but can introduce error due to numerical imprecision. Under most circumstances, the error is not noticable.
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<a class="anchor" name="a410ba08ad31813cb1f8cae252633323"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::GetPreIntegrationTable" ref="a410ba08ad31813cb1f8cae252633323" args="(int component=0)" -->
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<td class="memname">virtual float* vtkUnstructuredGridPreIntegration::GetPreIntegrationTable </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>component</em> = <code>0</code> </td>
<td> ) </td>
<td><code> [virtual]</code></td>
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<p>
Get the partial pre-integration table for the given scalar component. The tables are built when Initialize is called. A segment of length d with a front scalar of sf and a back scalar of sb is referenced in the resulting table as 4 * ((l * <code>IntegrationTableLengthScale</code>) * <code>IntegrationTableScalarResolution</code> * <code>IntegrationTableScalarResolution</code> + (sb * <code>IntegrationTableScalarScale</code> + <code>IntegrationTableScalarShift</code>) * <code>IntegrationTableScalarResolution</code> + (sf * <code>IntegrationTableScalarScale</code> + <code>IntegrationTableScalarShift</code>)).
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<a class="anchor" name="52748418fe18137598dfb60467a168d1"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::GetTableEntry" ref="52748418fe18137598dfb60467a168d1" args="(double scalar_front, double scalar_back, double lenth, int component=0)" -->
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<td class="memname">float * vtkUnstructuredGridPreIntegration::GetTableEntry </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"> <em>scalar_front</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"> <em>scalar_back</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"> <em>lenth</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>component</em> = <code>0</code></td><td> </td>
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<td></td>
<td>)</td>
<td></td><td></td><td><code> [inline]</code></td>
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Get an entry (RGBA) in one of the pre-integration tables. The tables are built when Intialize is called.
<p>Definition at line <a class="el" href="a05420.html#l00181">181</a> of file <a class="el" href="a05420.html">vtkUnstructuredGridPreIntegration.h</a>.</p>
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<a class="anchor" name="1b3ac3e0a128a6e512f5aad5343f1d75"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::GetIndexedTableEntry" ref="1b3ac3e0a128a6e512f5aad5343f1d75" args="(int scalar_front_index, int scalar_back_index, int length_index, int component=0)" -->
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<td class="paramtype">int </td>
<td class="paramname"> <em>scalar_front_index</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>scalar_back_index</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>length_index</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>component</em> = <code>0</code></td><td> </td>
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<td>)</td>
<td></td><td></td><td><code> [inline]</code></td>
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Like GetTableEntry, except the inputs are scaled indices into the table rather than than the actual scalar and length values. Use GetTableEntry unless you are really sure you know what you are doing.
<p>Definition at line <a class="el" href="a05420.html#l00155">155</a> of file <a class="el" href="a05420.html">vtkUnstructuredGridPreIntegration.h</a>.</p>
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<a class="anchor" name="8c28168111b89e37b7cc951f24f75239"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::BuildPreIntegrationTables" ref="8c28168111b89e37b7cc951f24f75239" args="(vtkDataArray *scalars)" -->
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<td class="memname">virtual void vtkUnstructuredGridPreIntegration::BuildPreIntegrationTables </td>
<td>(</td>
<td class="paramtype"><a class="el" href="a00356.html">vtkDataArray</a> * </td>
<td class="paramname"> <em>scalars</em> </td>
<td> ) </td>
<td><code> [protected, virtual]</code></td>
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<hr><h2>Member Data Documentation</h2>
<a class="anchor" name="f79bf00a109313a0dcb7955cbbf47fba"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::Integrator" ref="f79bf00a109313a0dcb7955cbbf47fba" args="" -->
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<td class="memname"><a class="el" href="a01807.html">vtkUnstructuredGridVolumeRayIntegrator</a>* <a class="el" href="a01798.html#f79bf00a109313a0dcb7955cbbf47fba">vtkUnstructuredGridPreIntegration::Integrator</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a05420.html#l00130">130</a> of file <a class="el" href="a05420.html">vtkUnstructuredGridPreIntegration.h</a>.</p>
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<a class="anchor" name="28f0bf8ee99c5171a6f4bf718b8499e0"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::Volume" ref="28f0bf8ee99c5171a6f4bf718b8499e0" args="" -->
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<td class="memname"><a class="el" href="a01839.html">vtkVolume</a>* <a class="el" href="a01798.html#28f0bf8ee99c5171a6f4bf718b8499e0">vtkUnstructuredGridPreIntegration::Volume</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a05420.html#l00132">132</a> of file <a class="el" href="a05420.html">vtkUnstructuredGridPreIntegration.h</a>.</p>
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<a class="anchor" name="5abb2960ffb003fd47d609e043bfa984"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::Property" ref="5abb2960ffb003fd47d609e043bfa984" args="" -->
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<td class="memname"><a class="el" href="a01844.html">vtkVolumeProperty</a>* <a class="el" href="a01798.html#5abb2960ffb003fd47d609e043bfa984">vtkUnstructuredGridPreIntegration::Property</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a05420.html#l00133">133</a> of file <a class="el" href="a05420.html">vtkUnstructuredGridPreIntegration.h</a>.</p>
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<a class="anchor" name="1fe74f0e9e9fe3fa87ae3ceee2e5406e"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::MaxLength" ref="1fe74f0e9e9fe3fa87ae3ceee2e5406e" args="" -->
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<td class="memname">double <a class="el" href="a01798.html#1fe74f0e9e9fe3fa87ae3ceee2e5406e">vtkUnstructuredGridPreIntegration::MaxLength</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a05420.html#l00134">134</a> of file <a class="el" href="a05420.html">vtkUnstructuredGridPreIntegration.h</a>.</p>
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<a class="anchor" name="f08ea1081645dc8c5b6a37b04876172d"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::NumComponents" ref="f08ea1081645dc8c5b6a37b04876172d" args="" -->
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<td class="memname">int <a class="el" href="a01798.html#f08ea1081645dc8c5b6a37b04876172d">vtkUnstructuredGridPreIntegration::NumComponents</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a05420.html#l00136">136</a> of file <a class="el" href="a05420.html">vtkUnstructuredGridPreIntegration.h</a>.</p>
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<a class="anchor" name="6c1a15f7eb138a34ee089a125de506e8"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::IntegrationTable" ref="6c1a15f7eb138a34ee089a125de506e8" args="" -->
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<td class="memname">float** <a class="el" href="a01798.html#6c1a15f7eb138a34ee089a125de506e8">vtkUnstructuredGridPreIntegration::IntegrationTable</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a05420.html#l00137">137</a> of file <a class="el" href="a05420.html">vtkUnstructuredGridPreIntegration.h</a>.</p>
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<a class="anchor" name="2fa8a793ed0d00a72337d90b7565a8e8"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::IntegrationTableScalarShift" ref="2fa8a793ed0d00a72337d90b7565a8e8" args="" -->
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<td class="memname">double* <a class="el" href="a01798.html#2fa8a793ed0d00a72337d90b7565a8e8">vtkUnstructuredGridPreIntegration::IntegrationTableScalarShift</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a05420.html#l00138">138</a> of file <a class="el" href="a05420.html">vtkUnstructuredGridPreIntegration.h</a>.</p>
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<a class="anchor" name="96ceec43c2e9f12566cc63938e6c3b04"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::IntegrationTableScalarScale" ref="96ceec43c2e9f12566cc63938e6c3b04" args="" -->
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<td class="memname">double* <a class="el" href="a01798.html#96ceec43c2e9f12566cc63938e6c3b04">vtkUnstructuredGridPreIntegration::IntegrationTableScalarScale</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a05420.html#l00139">139</a> of file <a class="el" href="a05420.html">vtkUnstructuredGridPreIntegration.h</a>.</p>
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<a class="anchor" name="289e71ae9f32243c7952500b546d88af"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::IntegrationTableLengthScale" ref="289e71ae9f32243c7952500b546d88af" args="" -->
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<td class="memname">double <a class="el" href="a01798.html#289e71ae9f32243c7952500b546d88af">vtkUnstructuredGridPreIntegration::IntegrationTableLengthScale</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a05420.html#l00140">140</a> of file <a class="el" href="a05420.html">vtkUnstructuredGridPreIntegration.h</a>.</p>
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<a class="anchor" name="0c2162232ee641f803d83457edeba54e"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::IntegrationTableBuilt" ref="0c2162232ee641f803d83457edeba54e" args="" -->
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<td class="memname"><a class="el" href="a01719.html">vtkTimeStamp</a> <a class="el" href="a01798.html#0c2162232ee641f803d83457edeba54e">vtkUnstructuredGridPreIntegration::IntegrationTableBuilt</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a05420.html#l00141">141</a> of file <a class="el" href="a05420.html">vtkUnstructuredGridPreIntegration.h</a>.</p>
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<a class="anchor" name="5a2834597bec29e54f419dad4a941bd5"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::IntegrationTableScalarResolution" ref="5a2834597bec29e54f419dad4a941bd5" args="" -->
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<td class="memname">int <a class="el" href="a01798.html#5a2834597bec29e54f419dad4a941bd5">vtkUnstructuredGridPreIntegration::IntegrationTableScalarResolution</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a05420.html#l00143">143</a> of file <a class="el" href="a05420.html">vtkUnstructuredGridPreIntegration.h</a>.</p>
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<a class="anchor" name="437941d4dc1e7caee0b497d5ae2dfdb5"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::IntegrationTableLengthResolution" ref="437941d4dc1e7caee0b497d5ae2dfdb5" args="" -->
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<td class="memname">int <a class="el" href="a01798.html#437941d4dc1e7caee0b497d5ae2dfdb5">vtkUnstructuredGridPreIntegration::IntegrationTableLengthResolution</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a05420.html#l00144">144</a> of file <a class="el" href="a05420.html">vtkUnstructuredGridPreIntegration.h</a>.</p>
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<a class="anchor" name="79ca94952e5bd83bea2faf1128fee30d"></a><!-- doxytag: member="vtkUnstructuredGridPreIntegration::IncrementalPreIntegration" ref="79ca94952e5bd83bea2faf1128fee30d" args="" -->
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<td class="memname">int <a class="el" href="a01798.html#79ca94952e5bd83bea2faf1128fee30d">vtkUnstructuredGridPreIntegration::IncrementalPreIntegration</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a05420.html#l00146">146</a> of file <a class="el" href="a05420.html">vtkUnstructuredGridPreIntegration.h</a>.</p>
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<hr>The documentation for this class was generated from the following file:<ul>
<li>dox/VolumeRendering/<a class="el" href="a05420.html">vtkUnstructuredGridPreIntegration.h</a></ul>
</div>
<hr size="1"><address style="text-align: right;"><small>Generated on Wed Jun 3 19:43:09 2009 for VTK by
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