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<h1>vtkVolumeRayCastFunction Class Reference</h1><!-- doxytag: class="vtkVolumeRayCastFunction" --><!-- doxytag: inherits="vtkObject" --><code>#include <<a class="el" href="a05431.html">vtkVolumeRayCastFunction.h</a>></code>
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Inheritance diagram for vtkVolumeRayCastFunction:</div>
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<area shape="rect" href="a01846.html" title="a ray function for compositing" alt="" coords="534,6,790,32"><area shape="rect" href="a01849.html" title="An isosurface ray caster for volumes." alt="" coords="535,56,788,83"><area shape="rect" href="a01851.html" title="A maximum intensity projection ray caster for volumes." alt="" coords="555,107,768,134"><area shape="rect" href="a01084.html" title="abstract base class for most VTK objects" alt="" coords="166,56,246,83"><area shape="rect" href="a01085.html" title="abstract base class for most VTK objects" alt="" coords="7,56,116,83"></map>
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Collaboration diagram for vtkVolumeRayCastFunction:</div>
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<p><center><img src="a15808.png" border="0" usemap="#a15809" alt="Collaboration graph"></center>
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<area shape="rect" href="a01084.html" title="abstract base class for most VTK objects" alt="" coords="87,96,167,123"><area shape="rect" href="a01085.html" title="abstract base class for most VTK objects" alt="" coords="5,5,115,32"><area shape="rect" href="a01719.html" title="record modification and/or execution time" alt="" coords="139,5,248,32"></map>
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<a href="a15810.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>
a superclass for ray casting functions
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<a class="el" href="a01848.html" title="a superclass for ray casting functions">vtkVolumeRayCastFunction</a> is a superclass for ray casting functions that can be used within a <a class="el" href="a01850.html" title="A slow but accurate mapper for rendering volumes.">vtkVolumeRayCastMapper</a>. This includes for example, <a class="el" href="a01846.html" title="a ray function for compositing">vtkVolumeRayCastCompositeFunction</a>, <a class="el" href="a01851.html" title="A maximum intensity projection ray caster for volumes.">vtkVolumeRayCastMIPFunction</a>, and <a class="el" href="a01849.html" title="An isosurface ray caster for volumes.">vtkVolumeRayCastIsosurfaceFunction</a>.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="a01846.html" title="a ray function for compositing">vtkVolumeRayCastCompositeFunction</a> <a class="el" href="a01851.html" title="A maximum intensity projection ray caster for volumes.">vtkVolumeRayCastMIPFunction</a> <a class="el" href="a01849.html" title="An isosurface ray caster for volumes.">vtkVolumeRayCastIsosurfaceFunction</a> <a class="el" href="a01850.html" title="A slow but accurate mapper for rendering volumes.">vtkVolumeRayCastMapper</a> </dd></dl>
<p>Definition at line <a class="el" href="a05431.html#l00132">132</a> of file <a class="el" href="a05431.html">vtkVolumeRayCastFunction.h</a>.</p>
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<tr><td colspan="2"><br><h2>Public Types</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">typedef <a class="el" href="a01084.html">vtkObject</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a01848.html#4e3479a5fad03b79743fd0a2eb5eba77">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="a01848.html#c2e29f15c2b645db044f14fd33b10d7b">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="a01848.html#8a03b17bfd05cf3258d8c1de6d66897a">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="a01848.html#ce8f8fa457d59e437d8558d2260e30ec">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="a01848.html#97438578171d92889ac9fed552781b23">CastRay</a> (<a class="el" href="a01847.html">vtkVolumeRayCastDynamicInfo</a> *dynamicInfo, <a class="el" href="a01852.html">vtkVolumeRayCastStaticInfo</a> *staticInfo)=0</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual float </td><td class="memItemRight" valign="bottom"><a class="el" href="a01848.html#9cb7c7d74f9e5656bc86b279453b00b7">GetZeroOpacityThreshold</a> (<a class="el" href="a01839.html">vtkVolume</a> *vol)=0</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a01848.html#836d6b0aa90f0291afb3b83e3af583a2">FunctionInitialize</a> (<a class="el" href="a01480.html">vtkRenderer</a> *ren, <a class="el" href="a01839.html">vtkVolume</a> *vol, <a class="el" href="a01852.html">vtkVolumeRayCastStaticInfo</a> *staticInfo)</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="a01848.html#26b1a46f69bec464379e71d4ede6ea8a">IsTypeOf</a> (const char *type)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static <a class="el" href="a01848.html">vtkVolumeRayCastFunction</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01848.html#4e41554af6ec2ff48d0a2bfef8befb77">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="a01848.html#d3da166f0a02e05738137870ecd72bb9">vtkVolumeRayCastFunction</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a01848.html#b92c6a8ab8a78a90cc0e1bdc4a042f3f">~vtkVolumeRayCastFunction</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="a01848.html#a6fd9d6a271dbd17a24223e97b895079">SpecificFunctionInitialize</a> (<a class="el" href="a01480.html">vtkRenderer</a> *ren, <a class="el" href="a01839.html">vtkVolume</a> *vol, <a class="el" href="a01852.html">vtkVolumeRayCastStaticInfo</a> *staticInfo, <a class="el" href="a01850.html">vtkVolumeRayCastMapper</a> *mapper)=0</td></tr>
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<hr><h2>Member Typedef Documentation</h2>
<a class="anchor" name="4e3479a5fad03b79743fd0a2eb5eba77"></a><!-- doxytag: member="vtkVolumeRayCastFunction::Superclass" ref="4e3479a5fad03b79743fd0a2eb5eba77" args="" -->
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<td class="memname">typedef <a class="el" href="a01084.html">vtkObject</a> <a class="el" href="a01084.html">vtkVolumeRayCastFunction::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="a01846.html#cb1619cd74d90ed004bc05a4e7418f71">vtkVolumeRayCastCompositeFunction</a>, <a class="el" href="a01849.html#c7224a3dc916b7f6e9409e04171627e8">vtkVolumeRayCastIsosurfaceFunction</a>, and <a class="el" href="a01851.html#adac7e541a47182d8d6c77244debca7e">vtkVolumeRayCastMIPFunction</a>.</p>
<p>Definition at line <a class="el" href="a05431.html#l00135">135</a> of file <a class="el" href="a05431.html">vtkVolumeRayCastFunction.h</a>.</p>
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<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="d3da166f0a02e05738137870ecd72bb9"></a><!-- doxytag: member="vtkVolumeRayCastFunction::vtkVolumeRayCastFunction" ref="d3da166f0a02e05738137870ecd72bb9" args="()" -->
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<td class="memname">vtkVolumeRayCastFunction::vtkVolumeRayCastFunction </td>
<td>(</td>
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<td><code> [inline, protected]</code></td>
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<p>Definition at line <a class="el" href="a05431.html#l00158">158</a> of file <a class="el" href="a05431.html">vtkVolumeRayCastFunction.h</a>.</p>
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<a class="anchor" name="b92c6a8ab8a78a90cc0e1bdc4a042f3f"></a><!-- doxytag: member="vtkVolumeRayCastFunction::~vtkVolumeRayCastFunction" ref="b92c6a8ab8a78a90cc0e1bdc4a042f3f" args="()" -->
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<td class="memname">vtkVolumeRayCastFunction::~vtkVolumeRayCastFunction </td>
<td>(</td>
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<td><code> [inline, protected]</code></td>
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<p>Definition at line <a class="el" href="a05431.html#l00159">159</a> of file <a class="el" href="a05431.html">vtkVolumeRayCastFunction.h</a>.</p>
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="c2e29f15c2b645db044f14fd33b10d7b"></a><!-- doxytag: member="vtkVolumeRayCastFunction::GetClassName" ref="c2e29f15c2b645db044f14fd33b10d7b" args="()" -->
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<td class="memname">virtual const char* vtkVolumeRayCastFunction::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="a01846.html#aabe43781be70676a453a10b3d2e8b9c">vtkVolumeRayCastCompositeFunction</a>, <a class="el" href="a01849.html#5e81fc7d3b74b35fc26b68b79aaec7df">vtkVolumeRayCastIsosurfaceFunction</a>, and <a class="el" href="a01851.html#aeb427ff6a65e956f36a2a272e50d98e">vtkVolumeRayCastMIPFunction</a>.</p>
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<a class="anchor" name="26b1a46f69bec464379e71d4ede6ea8a"></a><!-- doxytag: member="vtkVolumeRayCastFunction::IsTypeOf" ref="26b1a46f69bec464379e71d4ede6ea8a" args="(const char *type)" -->
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<td class="memname">static int vtkVolumeRayCastFunction::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="a01846.html#99bb05657b4596ce66b7a7e6bc953f98">vtkVolumeRayCastCompositeFunction</a>, <a class="el" href="a01849.html#f75bd4046add54cdb9abe0a62c4ad2e6">vtkVolumeRayCastIsosurfaceFunction</a>, and <a class="el" href="a01851.html#b583c7813cd146515c92cf28079d04d6">vtkVolumeRayCastMIPFunction</a>.</p>
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<a class="anchor" name="8a03b17bfd05cf3258d8c1de6d66897a"></a><!-- doxytag: member="vtkVolumeRayCastFunction::IsA" ref="8a03b17bfd05cf3258d8c1de6d66897a" args="(const char *type)" -->
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<td class="memname">virtual int vtkVolumeRayCastFunction::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="a01846.html#2ecc5b48e0b79ca5012605071b6d8f41">vtkVolumeRayCastCompositeFunction</a>, <a class="el" href="a01849.html#78fe47e5700d9379338cec4533b9ffa4">vtkVolumeRayCastIsosurfaceFunction</a>, and <a class="el" href="a01851.html#4f00bcea5b9aa049021ae803181137ee">vtkVolumeRayCastMIPFunction</a>.</p>
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<a class="anchor" name="4e41554af6ec2ff48d0a2bfef8befb77"></a><!-- doxytag: member="vtkVolumeRayCastFunction::SafeDownCast" ref="4e41554af6ec2ff48d0a2bfef8befb77" args="(vtkObject *o)" -->
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<td class="memname">static <a class="el" href="a01848.html">vtkVolumeRayCastFunction</a>* vtkVolumeRayCastFunction::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="a01846.html#f0095a6331856edc8f5b208787e36fdc">vtkVolumeRayCastCompositeFunction</a>, <a class="el" href="a01849.html#e51339ef687b2f29583b578a5dd544b0">vtkVolumeRayCastIsosurfaceFunction</a>, and <a class="el" href="a01851.html#681a93b5498314342f81a0ca7d737b44">vtkVolumeRayCastMIPFunction</a>.</p>
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<a class="anchor" name="ce8f8fa457d59e437d8558d2260e30ec"></a><!-- doxytag: member="vtkVolumeRayCastFunction::PrintSelf" ref="ce8f8fa457d59e437d8558d2260e30ec" args="(ostream &os, vtkIndent indent)" -->
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<td class="memname">virtual void vtkVolumeRayCastFunction::PrintSelf </td>
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<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><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="a01846.html#828c01f46da514f10f3f6694da6dc2c3">vtkVolumeRayCastCompositeFunction</a>, <a class="el" href="a01849.html#50f020eb1dd87f87a8f7279c97bf5d69">vtkVolumeRayCastIsosurfaceFunction</a>, and <a class="el" href="a01851.html#0c9ff097ef4567371606075485cf86fd">vtkVolumeRayCastMIPFunction</a>.</p>
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<a class="anchor" name="836d6b0aa90f0291afb3b83e3af583a2"></a><!-- doxytag: member="vtkVolumeRayCastFunction::FunctionInitialize" ref="836d6b0aa90f0291afb3b83e3af583a2" args="(vtkRenderer *ren, vtkVolume *vol, vtkVolumeRayCastStaticInfo *staticInfo)" -->
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<td class="memname">void vtkVolumeRayCastFunction::FunctionInitialize </td>
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Do the basic initialization. This includes saving the parameters passed in into local variables, as well as grabbing some useful info from the volume property and normal encoder. This initialize routine is called once per render. It also calls the SpecificFunctionInitialize of the subclass function. BTX
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<a class="anchor" name="97438578171d92889ac9fed552781b23"></a><!-- doxytag: member="vtkVolumeRayCastFunction::CastRay" ref="97438578171d92889ac9fed552781b23" args="(vtkVolumeRayCastDynamicInfo *dynamicInfo, vtkVolumeRayCastStaticInfo *staticInfo)=0" -->
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<td class="memname">virtual void vtkVolumeRayCastFunction::CastRay </td>
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<td class="paramname"> <em>dynamicInfo</em>, </td>
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<td></td><td></td><td><code> [pure virtual]</code></td>
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<p>Implemented in <a class="el" href="a01846.html#0cb66a9c8961e4ff77ab7eb5bc7015ff">vtkVolumeRayCastCompositeFunction</a>, <a class="el" href="a01849.html#c1e5b27b5f70194a6f35b3cc31644da4">vtkVolumeRayCastIsosurfaceFunction</a>, and <a class="el" href="a01851.html#22d098ad81640110684b0529a4efd64f">vtkVolumeRayCastMIPFunction</a>.</p>
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<a class="anchor" name="9cb7c7d74f9e5656bc86b279453b00b7"></a><!-- doxytag: member="vtkVolumeRayCastFunction::GetZeroOpacityThreshold" ref="9cb7c7d74f9e5656bc86b279453b00b7" args="(vtkVolume *vol)=0" -->
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<td class="memname">virtual float vtkVolumeRayCastFunction::GetZeroOpacityThreshold </td>
<td>(</td>
<td class="paramtype"><a class="el" href="a01839.html">vtkVolume</a> * </td>
<td class="paramname"> <em>vol</em> </td>
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Get the value below which all scalar values are considered to have 0 opacity.
<p>Implemented in <a class="el" href="a01846.html#1571995dc36a4b97a422132c0e67c647">vtkVolumeRayCastCompositeFunction</a>, <a class="el" href="a01849.html#334ba9c6e2ca9344c015a5dfa468b6c3">vtkVolumeRayCastIsosurfaceFunction</a>, and <a class="el" href="a01851.html#4823abb61b0e2e1c6ee0558046e3af45">vtkVolumeRayCastMIPFunction</a>.</p>
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<a class="anchor" name="a6fd9d6a271dbd17a24223e97b895079"></a><!-- doxytag: member="vtkVolumeRayCastFunction::SpecificFunctionInitialize" ref="a6fd9d6a271dbd17a24223e97b895079" args="(vtkRenderer *ren, vtkVolume *vol, vtkVolumeRayCastStaticInfo *staticInfo, vtkVolumeRayCastMapper *mapper)=0" -->
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<td class="memname">virtual void vtkVolumeRayCastFunction::SpecificFunctionInitialize </td>
<td>(</td>
<td class="paramtype"><a class="el" href="a01480.html">vtkRenderer</a> * </td>
<td class="paramname"> <em>ren</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="a01839.html">vtkVolume</a> * </td>
<td class="paramname"> <em>vol</em>, </td>
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<td class="paramtype"><a class="el" href="a01852.html">vtkVolumeRayCastStaticInfo</a> * </td>
<td class="paramname"> <em>staticInfo</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="a01850.html">vtkVolumeRayCastMapper</a> * </td>
<td class="paramname"> <em>mapper</em></td><td> </td>
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<td>)</td>
<td></td><td></td><td><code> [protected, pure virtual]</code></td>
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This method gives the subclass a chance to do any special initialization that it may need to do BTX
<p>Implemented in <a class="el" href="a01846.html#05ce69edc840ffa4db458673639e3698">vtkVolumeRayCastCompositeFunction</a>, <a class="el" href="a01849.html#8356c0c8e709b8fb94ee00ffc9ce4cba">vtkVolumeRayCastIsosurfaceFunction</a>, and <a class="el" href="a01851.html#05880c888056345ded9a279d051542d3">vtkVolumeRayCastMIPFunction</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="a05431.html">vtkVolumeRayCastFunction.h</a></ul>
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<hr size="1"><address style="text-align: right;"><small>Generated on Wed Jun 3 19:44:54 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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