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<h1>vtkUnstructuredGridLinearRayIntegrator Class Reference</h1><!-- doxytag: class="vtkUnstructuredGridLinearRayIntegrator" --><!-- doxytag: inherits="vtkUnstructuredGridVolumeRayIntegrator" --><code>#include <<a class="el" href="a05418.html">vtkUnstructuredGridLinearRayIntegrator.h</a>></code>
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Inheritance diagram for vtkUnstructuredGridLinearRayIntegrator:</div>
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Collaboration diagram for vtkUnstructuredGridLinearRayIntegrator:</div>
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<p><center><img src="a15598.png" border="0" usemap="#a15599" alt="Collaboration graph"></center>
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<a href="a15600.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>
performs piecewise linear ray integration.
<p>
<a class="el" href="a01796.html" title="performs piecewise linear ray integration.">vtkUnstructuredGridLinearRayIntegrator</a> performs piecewise linear ray integration. Considering that transfer functions in VTK are piecewise linear, this class should give the "correct" integration under most circumstances. However, the computations performed are fairly hefty and should, for the most part, only be used as a benchmark for other, faster methods.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="a01797.html" title="performs piecewise linear ray integration.">vtkUnstructuredGridPartialPreIntegration</a></dd></dl>
<dl class="user" compact><dt><b>Tests:</b></dt><dd><a class="el" href="c2_vtk_t_17.html#c2_vtk_t_vtkUnstructuredGridLinearRayIntegrator">vtkUnstructuredGridLinearRayIntegrator (Tests)</a> </dd></dl>
<p>Definition at line <a class="el" href="a05418.html#l00053">53</a> of file <a class="el" href="a05418.html">vtkUnstructuredGridLinearRayIntegrator.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="a01796.html#fda5fb84567ec23e58564578a531eb6b">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="a01796.html#b392d9cd26e7cc8573ec57169f2f71e0">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="a01796.html#d7a5c5bffde69786c77491d7a5be6cef">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="a01796.html#d4cb446e46c04d03f73cf0689282a6cf">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="a01796.html#6c88718099c3f04d4ae4cbe9d25cf47a">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="a01796.html#c84d17616fe58cf2202bdd5ea5a37a2c">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 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="a01796.html#c04d27be01a06ec5d4589262e7edf294">IsTypeOf</a> (const char *type)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static <br>
<a class="el" href="a01796.html">vtkUnstructuredGridLinearRayIntegrator</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01796.html#b75bc08144a74713bb44e5e2fd81db4d">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="a01796.html">vtkUnstructuredGridLinearRayIntegrator</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01796.html#efd9dae2d1ebe17d8a8d429d51fe5464">New</a> ()</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">static void </td><td class="memItemRight" valign="bottom"><a class="el" href="a01796.html#b2f6e5f648251cf8c0fa9853666488aa">IntegrateRay</a> (double length, double intensity_front, double attenuation_front, double intensity_back, double attenuation_back, float color[4])</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static void </td><td class="memItemRight" valign="bottom"><a class="el" href="a01796.html#8f12ed876208637aabdf9f8751a78089">IntegrateRay</a> (double length, const double color_front[3], double attenuation_front, const double color_back[3], double attenuation_back, float color[4])</td></tr>
<tr><td colspan="2"><div class="groupHeader"></div></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static float </td><td class="memItemRight" valign="bottom"><a class="el" href="a01796.html#622a1655815143e4e09a5d651f8f1bef">Psi</a> (float length, float attenuation_front, float attenuation_back)</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="a01796.html#a39d1d5dd5e651d2d72d8e56bff52209">vtkUnstructuredGridLinearRayIntegrator</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a01796.html#fbaa3827682f9f76ad3c304dbd54f4c8">~vtkUnstructuredGridLinearRayIntegrator</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="a01844.html">vtkVolumeProperty</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01796.html#bb94896da70cd3c4f5dd874c7eba2870">Property</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">vtkLinearRayIntegratorTransferFunction * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01796.html#f6f25d6e8ef8b1aa91beb7a4f788f160">TransferFunctions</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="a01796.html#c791f3f9b6d49da39553ca40505aec45">TransferFunctionsModified</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="a01796.html#90619a9bcd18a1477972ee916355d016">NumIndependentComponents</a></td></tr>
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<hr><h2>Member Typedef Documentation</h2>
<a class="anchor" name="fda5fb84567ec23e58564578a531eb6b"></a><!-- doxytag: member="vtkUnstructuredGridLinearRayIntegrator::Superclass" ref="fda5fb84567ec23e58564578a531eb6b" args="" -->
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<td class="memname">typedef <a class="el" href="a01807.html">vtkUnstructuredGridVolumeRayIntegrator</a> <a class="el" href="a01807.html">vtkUnstructuredGridLinearRayIntegrator::Superclass</a> </td>
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<p>Reimplemented from <a class="el" href="a01807.html#632eafb35d829b1be999dea6e09f4524">vtkUnstructuredGridVolumeRayIntegrator</a>.</p>
<p>Definition at line <a class="el" href="a05418.html#l00057">57</a> of file <a class="el" href="a05418.html">vtkUnstructuredGridLinearRayIntegrator.h</a>.</p>
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<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="a39d1d5dd5e651d2d72d8e56bff52209"></a><!-- doxytag: member="vtkUnstructuredGridLinearRayIntegrator::vtkUnstructuredGridLinearRayIntegrator" ref="a39d1d5dd5e651d2d72d8e56bff52209" args="()" -->
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<td class="memname">vtkUnstructuredGridLinearRayIntegrator::vtkUnstructuredGridLinearRayIntegrator </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td><code> [protected]</code></td>
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<a class="anchor" name="fbaa3827682f9f76ad3c304dbd54f4c8"></a><!-- doxytag: member="vtkUnstructuredGridLinearRayIntegrator::~vtkUnstructuredGridLinearRayIntegrator" ref="fbaa3827682f9f76ad3c304dbd54f4c8" args="()" -->
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<td class="memname">vtkUnstructuredGridLinearRayIntegrator::~vtkUnstructuredGridLinearRayIntegrator </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="b392d9cd26e7cc8573ec57169f2f71e0"></a><!-- doxytag: member="vtkUnstructuredGridLinearRayIntegrator::GetClassName" ref="b392d9cd26e7cc8573ec57169f2f71e0" args="()" -->
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<td class="memname">virtual const char* vtkUnstructuredGridLinearRayIntegrator::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="a01807.html#bc96dc5430d48fdcd69db64a76388517">vtkUnstructuredGridVolumeRayIntegrator</a>.</p>
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<a class="anchor" name="c04d27be01a06ec5d4589262e7edf294"></a><!-- doxytag: member="vtkUnstructuredGridLinearRayIntegrator::IsTypeOf" ref="c04d27be01a06ec5d4589262e7edf294" args="(const char *type)" -->
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<td class="memname">static int vtkUnstructuredGridLinearRayIntegrator::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="a01807.html#af68ca267cf2598322185b39fd7e3be3">vtkUnstructuredGridVolumeRayIntegrator</a>.</p>
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<a class="anchor" name="d7a5c5bffde69786c77491d7a5be6cef"></a><!-- doxytag: member="vtkUnstructuredGridLinearRayIntegrator::IsA" ref="d7a5c5bffde69786c77491d7a5be6cef" args="(const char *type)" -->
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<td class="memname">virtual int vtkUnstructuredGridLinearRayIntegrator::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="a01807.html#372fb8213c5c3e7e9ec7f6f2654d70f5">vtkUnstructuredGridVolumeRayIntegrator</a>.</p>
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<a class="anchor" name="b75bc08144a74713bb44e5e2fd81db4d"></a><!-- doxytag: member="vtkUnstructuredGridLinearRayIntegrator::SafeDownCast" ref="b75bc08144a74713bb44e5e2fd81db4d" args="(vtkObject *o)" -->
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<td class="memname">static <a class="el" href="a01796.html">vtkUnstructuredGridLinearRayIntegrator</a>* vtkUnstructuredGridLinearRayIntegrator::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="a01807.html#12dc1daadd47baca15c5c68b8ff6375b">vtkUnstructuredGridVolumeRayIntegrator</a>.</p>
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<a class="anchor" name="efd9dae2d1ebe17d8a8d429d51fe5464"></a><!-- doxytag: member="vtkUnstructuredGridLinearRayIntegrator::New" ref="efd9dae2d1ebe17d8a8d429d51fe5464" args="()" -->
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<td class="memname">static <a class="el" href="a01796.html">vtkUnstructuredGridLinearRayIntegrator</a>* vtkUnstructuredGridLinearRayIntegrator::New </td>
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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="d4cb446e46c04d03f73cf0689282a6cf"></a><!-- doxytag: member="vtkUnstructuredGridLinearRayIntegrator::PrintSelf" ref="d4cb446e46c04d03f73cf0689282a6cf" args="(ostream &os, vtkIndent indent)" -->
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<td class="memname">virtual void vtkUnstructuredGridLinearRayIntegrator::PrintSelf </td>
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<td class="paramname"> <em>indent</em></td><td> </td>
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<td>)</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="6c88718099c3f04d4ae4cbe9d25cf47a"></a><!-- doxytag: member="vtkUnstructuredGridLinearRayIntegrator::Initialize" ref="6c88718099c3f04d4ae4cbe9d25cf47a" args="(vtkVolume *volume, vtkDataArray *scalars)" -->
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<td class="memname">virtual void vtkUnstructuredGridLinearRayIntegrator::Initialize </td>
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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="c84d17616fe58cf2202bdd5ea5a37a2c"></a><!-- doxytag: member="vtkUnstructuredGridLinearRayIntegrator::Integrate" ref="c84d17616fe58cf2202bdd5ea5a37a2c" args="(vtkDoubleArray *intersectionLengths, vtkDataArray *nearIntersections, vtkDataArray *farIntersections, float color[4])" -->
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<td class="memname">virtual void vtkUnstructuredGridLinearRayIntegrator::Integrate </td>
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<td class="paramname"> <em>intersectionLengths</em>, </td>
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<td class="paramname"> <em>farIntersections</em>, </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><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="b2f6e5f648251cf8c0fa9853666488aa"></a><!-- doxytag: member="vtkUnstructuredGridLinearRayIntegrator::IntegrateRay" ref="b2f6e5f648251cf8c0fa9853666488aa" args="(double length, double intensity_front, double attenuation_front, double intensity_back, double attenuation_back, float color[4])" -->
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<td class="memname">static void vtkUnstructuredGridLinearRayIntegrator::IntegrateRay </td>
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<td class="paramtype">double </td>
<td class="paramname"> <em>length</em>, </td>
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<td class="paramtype">double </td>
<td class="paramname"> <em>intensity_front</em>, </td>
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<td class="paramtype">double </td>
<td class="paramname"> <em>attenuation_front</em>, </td>
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<td class="paramtype">double </td>
<td class="paramname"> <em>intensity_back</em>, </td>
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<td class="paramtype">double </td>
<td class="paramname"> <em>attenuation_back</em>, </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><code> [static]</code></td>
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Integrates a single ray segment. <code>color</code> is blended with the result (with <code>color</code> in front). The result is written back into <code>color</code>.
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<a class="anchor" name="8f12ed876208637aabdf9f8751a78089"></a><!-- doxytag: member="vtkUnstructuredGridLinearRayIntegrator::IntegrateRay" ref="8f12ed876208637aabdf9f8751a78089" args="(double length, const double color_front[3], double attenuation_front, const double color_back[3], double attenuation_back, float color[4])" -->
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<td class="memname">static void vtkUnstructuredGridLinearRayIntegrator::IntegrateRay </td>
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<td class="paramtype">double </td>
<td class="paramname"> <em>length</em>, </td>
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<td class="paramtype">const double </td>
<td class="paramname"> <em>color_front</em>[3], </td>
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<td class="paramtype">double </td>
<td class="paramname"> <em>attenuation_front</em>, </td>
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<td class="paramtype">const double </td>
<td class="paramname"> <em>color_back</em>[3], </td>
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<td class="paramtype">double </td>
<td class="paramname"> <em>attenuation_back</em>, </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><code> [static]</code></td>
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<p>
Integrates a single ray segment. <code>color</code> is blended with the result (with <code>color</code> in front). The result is written back into <code>color</code>.
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<a class="anchor" name="622a1655815143e4e09a5d651f8f1bef"></a><!-- doxytag: member="vtkUnstructuredGridLinearRayIntegrator::Psi" ref="622a1655815143e4e09a5d651f8f1bef" args="(float length, float attenuation_front, float attenuation_back)" -->
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<td class="memname">static float vtkUnstructuredGridLinearRayIntegrator::Psi </td>
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<td class="paramtype">float </td>
<td class="paramname"> <em>attenuation_front</em>, </td>
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<td class="paramtype">float </td>
<td class="paramname"> <em>attenuation_back</em></td><td> </td>
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<td>)</td>
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Computes Psi (as defined by Moreland and Angel, "A Fast High Accuracy Volume Renderer for Unstructured Data").
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<hr><h2>Member Data Documentation</h2>
<a class="anchor" name="bb94896da70cd3c4f5dd874c7eba2870"></a><!-- doxytag: member="vtkUnstructuredGridLinearRayIntegrator::Property" ref="bb94896da70cd3c4f5dd874c7eba2870" args="" -->
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<td class="memname"><a class="el" href="a01844.html">vtkVolumeProperty</a>* <a class="el" href="a01796.html#bb94896da70cd3c4f5dd874c7eba2870">vtkUnstructuredGridLinearRayIntegrator::Property</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a05418.html#l00094">94</a> of file <a class="el" href="a05418.html">vtkUnstructuredGridLinearRayIntegrator.h</a>.</p>
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<a class="anchor" name="f6f25d6e8ef8b1aa91beb7a4f788f160"></a><!-- doxytag: member="vtkUnstructuredGridLinearRayIntegrator::TransferFunctions" ref="f6f25d6e8ef8b1aa91beb7a4f788f160" args="" -->
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<td class="memname">vtkLinearRayIntegratorTransferFunction* <a class="el" href="a01796.html#f6f25d6e8ef8b1aa91beb7a4f788f160">vtkUnstructuredGridLinearRayIntegrator::TransferFunctions</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a05418.html#l00096">96</a> of file <a class="el" href="a05418.html">vtkUnstructuredGridLinearRayIntegrator.h</a>.</p>
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<a class="anchor" name="c791f3f9b6d49da39553ca40505aec45"></a><!-- doxytag: member="vtkUnstructuredGridLinearRayIntegrator::TransferFunctionsModified" ref="c791f3f9b6d49da39553ca40505aec45" args="" -->
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<td class="memname"><a class="el" href="a01719.html">vtkTimeStamp</a> <a class="el" href="a01796.html#c791f3f9b6d49da39553ca40505aec45">vtkUnstructuredGridLinearRayIntegrator::TransferFunctionsModified</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a05418.html#l00097">97</a> of file <a class="el" href="a05418.html">vtkUnstructuredGridLinearRayIntegrator.h</a>.</p>
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<a class="anchor" name="90619a9bcd18a1477972ee916355d016"></a><!-- doxytag: member="vtkUnstructuredGridLinearRayIntegrator::NumIndependentComponents" ref="90619a9bcd18a1477972ee916355d016" args="" -->
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<td class="memname">int <a class="el" href="a01796.html#90619a9bcd18a1477972ee916355d016">vtkUnstructuredGridLinearRayIntegrator::NumIndependentComponents</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a05418.html#l00098">98</a> of file <a class="el" href="a05418.html">vtkUnstructuredGridLinearRayIntegrator.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="a05418.html">vtkUnstructuredGridLinearRayIntegrator.h</a></ul>
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<hr size="1"><address style="text-align: right;"><small>Generated on Wed Jun 3 19:43:02 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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