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<h1>vtkTerrainContourLineInterpolator Class Reference</h1><!-- doxytag: class="vtkTerrainContourLineInterpolator" --><!-- doxytag: inherits="vtkContourLineInterpolator" --><code>#include <<a class="el" href="a05533.html">vtkTerrainContourLineInterpolator.h</a>></code>
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Inheritance diagram for vtkTerrainContourLineInterpolator:</div>
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Collaboration diagram for vtkTerrainContourLineInterpolator:</div>
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<a href="a15088.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>
Contour interpolator for DEM data.
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<a class="el" href="a01684.html" title="Contour interpolator for DEM data.">vtkTerrainContourLineInterpolator</a> interpolates nodes on height field data. The class is meant to be used in conjunciton with a <a class="el" href="a00331.html" title="create a contour with a set of points">vtkContourWidget</a>, enabling you to draw paths on terrain data. The class internally uses a <a class="el" href="a01314.html" title="project a polyline onto a terrain">vtkProjectedTerrainPath</a>. Users can set kind of interpolation desired between two node points by setting the modes of the this filter. For instance:<p>
<div class="fragment"><pre class="fragment"> contourRepresentation->SetLineInterpolator(interpolator);
interpolator->SetImageData( demDataFile );
interpolator->GetProjector()->SetProjectionModeToHug();
interpolator->SetHeightOffset(25.0);
</pre></div><p>
You are required to set the ImageData to this class as the height-field image.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="a01685.html" title="Place points on terrain data.">vtkTerrainDataPointPlacer</a> <a class="el" href="a01314.html" title="project a polyline onto a terrain">vtkProjectedTerrainPath</a></dd></dl>
<dl class="user" compact><dt><b>Tests:</b></dt><dd><a class="el" href="c2_vtk_t_16.html#c2_vtk_t_vtkTerrainContourLineInterpolator">vtkTerrainContourLineInterpolator (Tests)</a> </dd></dl>
<p>Definition at line <a class="el" href="a05533.html#l00051">51</a> of file <a class="el" href="a05533.html">vtkTerrainContourLineInterpolator.h</a>.</p>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">typedef <a class="el" href="a00325.html">vtkContourLineInterpolator</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a01684.html#c738e7a925136b27bd8099225f9771c7">Superclass</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static int </td><td class="memItemRight" valign="bottom"><a class="el" href="a01684.html#98310b38dc733c0dadc1d6c23623a95c">IsTypeOf</a> (const char *type)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static <br>
<a class="el" href="a01684.html">vtkTerrainContourLineInterpolator</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01684.html#0f3c1152422317345bc97e276b6412de">SafeDownCast</a> (<a class="el" href="a01084.html">vtkObject</a> *o)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01684.html#ea4d2745d2b5bdcd05dd65a00c870202">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="a01684.html#f9c44b186113a3b8520b234fd4a7af52">IsA</a> (const char *type)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a01684.html#3badbf85836e19161eb2feb115d89977">PrintSelf</a> (ostream &os, <a class="el" href="a00869.html">vtkIndent</a> indent)</td></tr>
<tr><td colspan="2"><br><h2>Public Member Functions</h2></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="a01684.html#c30025dcc093727b02ec92e0f7a318fc">InterpolateLine</a> (<a class="el" href="a01480.html">vtkRenderer</a> *ren, <a class="el" href="a00326.html">vtkContourRepresentation</a> *rep, int idx1, int idx2)</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="a01684.html#be07a5d8e1173e9434ea4320f8b35d96">UpdateNode</a> (<a class="el" href="a01480.html">vtkRenderer</a> *, <a class="el" href="a00326.html">vtkContourRepresentation</a> *, double *vtkNotUsed(node), int vtkNotUsed(idx))</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="a01684.html#c55deb18024908bc777d2141f234e86d">SetImageData</a> (<a class="el" href="a00751.html">vtkImageData</a> *)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual <a class="el" href="a00751.html">vtkImageData</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01684.html#f7631dae1bca2c63241426c623593c99">GetImageData</a> ()</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual <a class="el" href="a01314.html">vtkProjectedTerrainPath</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01684.html#688d2250d25382a7fc59afc2fee416cf">GetProjector</a> ()</td></tr>
<tr><td colspan="2"><br><h2>Static Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static <br>
<a class="el" href="a01684.html">vtkTerrainContourLineInterpolator</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01684.html#f526f5e0c9f014973b92ab0684dfa3c3">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="a01684.html#0df091955ec8f5f2935e2c895f6875d2">vtkTerrainContourLineInterpolator</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a01684.html#cbe821a37bb37516558cdaa600eeb9de">~vtkTerrainContourLineInterpolator</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="a00751.html">vtkImageData</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01684.html#0a2376856a79a31068ce386f154fc335">ImageData</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a01314.html">vtkProjectedTerrainPath</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01684.html#bf0541c5b35dff835d3243e9e5f96977">Projector</a></td></tr>
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<hr><h2>Member Typedef Documentation</h2>
<a class="anchor" name="c738e7a925136b27bd8099225f9771c7"></a><!-- doxytag: member="vtkTerrainContourLineInterpolator::Superclass" ref="c738e7a925136b27bd8099225f9771c7" args="" -->
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<td class="memname">typedef <a class="el" href="a00325.html">vtkContourLineInterpolator</a> <a class="el" href="a00325.html">vtkTerrainContourLineInterpolator::Superclass</a> </td>
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<p>
Standard methods for instances of this class.
<p>Reimplemented from <a class="el" href="a00325.html#a890b4b6b1fa415b5d9c62c60087063f">vtkContourLineInterpolator</a>.</p>
<p>Definition at line <a class="el" href="a05533.html#l00061">61</a> of file <a class="el" href="a05533.html">vtkTerrainContourLineInterpolator.h</a>.</p>
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<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="0df091955ec8f5f2935e2c895f6875d2"></a><!-- doxytag: member="vtkTerrainContourLineInterpolator::vtkTerrainContourLineInterpolator" ref="0df091955ec8f5f2935e2c895f6875d2" args="()" -->
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<td class="memname">vtkTerrainContourLineInterpolator::vtkTerrainContourLineInterpolator </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td><code> [protected]</code></td>
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<a class="anchor" name="cbe821a37bb37516558cdaa600eeb9de"></a><!-- doxytag: member="vtkTerrainContourLineInterpolator::~vtkTerrainContourLineInterpolator" ref="cbe821a37bb37516558cdaa600eeb9de" args="()" -->
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<td class="memname">vtkTerrainContourLineInterpolator::~vtkTerrainContourLineInterpolator </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="f526f5e0c9f014973b92ab0684dfa3c3"></a><!-- doxytag: member="vtkTerrainContourLineInterpolator::New" ref="f526f5e0c9f014973b92ab0684dfa3c3" args="()" -->
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<td class="memname">static <a class="el" href="a01684.html">vtkTerrainContourLineInterpolator</a>* vtkTerrainContourLineInterpolator::New </td>
<td>(</td>
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<td><code> [static]</code></td>
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Instantiate this class.
<p>Reimplemented from <a class="el" href="a01084.html#4d5b227267c076d6f9e38483370b6612">vtkObject</a>.</p>
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<a class="anchor" name="ea4d2745d2b5bdcd05dd65a00c870202"></a><!-- doxytag: member="vtkTerrainContourLineInterpolator::GetClassName" ref="ea4d2745d2b5bdcd05dd65a00c870202" args="()" -->
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<td class="memname">virtual const char* vtkTerrainContourLineInterpolator::GetClassName </td>
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<td><code> [virtual]</code></td>
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Standard methods for instances of this class.
<p>Reimplemented from <a class="el" href="a00325.html#415db04a80443deb933271dc2362941a">vtkContourLineInterpolator</a>.</p>
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<a class="anchor" name="98310b38dc733c0dadc1d6c23623a95c"></a><!-- doxytag: member="vtkTerrainContourLineInterpolator::IsTypeOf" ref="98310b38dc733c0dadc1d6c23623a95c" args="(const char *type)" -->
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<td class="memname">static int vtkTerrainContourLineInterpolator::IsTypeOf </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"> <em>type</em> </td>
<td> ) </td>
<td><code> [static]</code></td>
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<p>
Standard methods for instances of this class.
<p>Reimplemented from <a class="el" href="a00325.html#8eedc70e051c7b7f3ee42cf73eb893e9">vtkContourLineInterpolator</a>.</p>
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<a class="anchor" name="f9c44b186113a3b8520b234fd4a7af52"></a><!-- doxytag: member="vtkTerrainContourLineInterpolator::IsA" ref="f9c44b186113a3b8520b234fd4a7af52" args="(const char *type)" -->
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<td class="memname">virtual int vtkTerrainContourLineInterpolator::IsA </td>
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<td class="paramtype">const char * </td>
<td class="paramname"> <em>type</em> </td>
<td> ) </td>
<td><code> [virtual]</code></td>
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<p>
Standard methods for instances of this class.
<p>Reimplemented from <a class="el" href="a00325.html#4f24b293c05a047a30179ee026fdf62f">vtkContourLineInterpolator</a>.</p>
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<a class="anchor" name="0f3c1152422317345bc97e276b6412de"></a><!-- doxytag: member="vtkTerrainContourLineInterpolator::SafeDownCast" ref="0f3c1152422317345bc97e276b6412de" args="(vtkObject *o)" -->
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<td class="memname">static <a class="el" href="a01684.html">vtkTerrainContourLineInterpolator</a>* vtkTerrainContourLineInterpolator::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>
Standard methods for instances of this class.
<p>Reimplemented from <a class="el" href="a00325.html#b79209f2137ba0f816ffffdf1ab20118">vtkContourLineInterpolator</a>.</p>
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<a class="anchor" name="3badbf85836e19161eb2feb115d89977"></a><!-- doxytag: member="vtkTerrainContourLineInterpolator::PrintSelf" ref="3badbf85836e19161eb2feb115d89977" args="(ostream &os, vtkIndent indent)" -->
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<td class="memname">void vtkTerrainContourLineInterpolator::PrintSelf </td>
<td>(</td>
<td class="paramtype">ostream & </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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<p>
Standard methods for instances of this class.
<p>Reimplemented from <a class="el" href="a00325.html#c0e557f2b74b7b2fc7d8cf1431f4a0f4">vtkContourLineInterpolator</a>.</p>
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<a class="anchor" name="c30025dcc093727b02ec92e0f7a318fc"></a><!-- doxytag: member="vtkTerrainContourLineInterpolator::InterpolateLine" ref="c30025dcc093727b02ec92e0f7a318fc" args="(vtkRenderer *ren, vtkContourRepresentation *rep, int idx1, int idx2)" -->
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<td class="memname">virtual int vtkTerrainContourLineInterpolator::InterpolateLine </td>
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<td class="paramname"> <em>ren</em>, </td>
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<td class="paramtype"><a class="el" href="a00326.html">vtkContourRepresentation</a> * </td>
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Interpolate to create lines between contour nodes idx1 and idx2. Depending on the projection mode, the interpolated line may either hug the terrain, just connect the two points with a straight line or a non-occluded interpolation. Used internally by <a class="el" href="a00326.html" title="represent the vtkContourWidget">vtkContourRepresentation</a>.
<p>Implements <a class="el" href="a00325.html#8652176cb5392a01043bc98a419f1161">vtkContourLineInterpolator</a>.</p>
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<a class="anchor" name="be07a5d8e1173e9434ea4320f8b35d96"></a><!-- doxytag: member="vtkTerrainContourLineInterpolator::UpdateNode" ref="be07a5d8e1173e9434ea4320f8b35d96" args="(vtkRenderer *, vtkContourRepresentation *, double *vtkNotUsed(node), int vtkNotUsed(idx))" -->
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<td class="memname">virtual int vtkTerrainContourLineInterpolator::UpdateNode </td>
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The interpolator is given a chance to update the node. Used internally by <a class="el" href="a00326.html" title="represent the vtkContourWidget">vtkContourRepresentation</a> Returns 0 if the node (world position) is unchanged.
<p>Reimplemented from <a class="el" href="a00325.html#7ec104c2fd629ad8de849ff15ed9bc3d">vtkContourLineInterpolator</a>.</p>
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<a class="anchor" name="c55deb18024908bc777d2141f234e86d"></a><!-- doxytag: member="vtkTerrainContourLineInterpolator::SetImageData" ref="c55deb18024908bc777d2141f234e86d" args="(vtkImageData *)" -->
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<td class="memname">virtual void vtkTerrainContourLineInterpolator::SetImageData </td>
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Set the height field data. The height field data is a 2D image. The scalars in the image represent the height field. This must be set.
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<a class="anchor" name="f7631dae1bca2c63241426c623593c99"></a><!-- doxytag: member="vtkTerrainContourLineInterpolator::GetImageData" ref="f7631dae1bca2c63241426c623593c99" args="()" -->
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<td class="memname">virtual <a class="el" href="a00751.html">vtkImageData</a>* vtkTerrainContourLineInterpolator::GetImageData </td>
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Set the height field data. The height field data is a 2D image. The scalars in the image represent the height field. This must be set.
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<a class="anchor" name="688d2250d25382a7fc59afc2fee416cf"></a><!-- doxytag: member="vtkTerrainContourLineInterpolator::GetProjector" ref="688d2250d25382a7fc59afc2fee416cf" args="()" -->
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<td class="memname">virtual <a class="el" href="a01314.html">vtkProjectedTerrainPath</a>* vtkTerrainContourLineInterpolator::GetProjector </td>
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Get the <a class="el" href="a01314.html" title="project a polyline onto a terrain">vtkProjectedTerrainPath</a> operator used to project the terrain onto the data. This operator has several modes, See the documentation of <a class="el" href="a01314.html" title="project a polyline onto a terrain">vtkProjectedTerrainPath</a>. The default mode is to hug the terrain data at 0 height offset.
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<hr><h2>Member Data Documentation</h2>
<a class="anchor" name="0a2376856a79a31068ce386f154fc335"></a><!-- doxytag: member="vtkTerrainContourLineInterpolator::ImageData" ref="0a2376856a79a31068ce386f154fc335" args="" -->
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<td class="memname"><a class="el" href="a00751.html">vtkImageData</a>* <a class="el" href="a01684.html#0a2376856a79a31068ce386f154fc335">vtkTerrainContourLineInterpolator::ImageData</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a05533.html#l00104">104</a> of file <a class="el" href="a05533.html">vtkTerrainContourLineInterpolator.h</a>.</p>
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<a class="anchor" name="bf0541c5b35dff835d3243e9e5f96977"></a><!-- doxytag: member="vtkTerrainContourLineInterpolator::Projector" ref="bf0541c5b35dff835d3243e9e5f96977" args="" -->
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<td class="memname"><a class="el" href="a01314.html">vtkProjectedTerrainPath</a>* <a class="el" href="a01684.html#bf0541c5b35dff835d3243e9e5f96977">vtkTerrainContourLineInterpolator::Projector</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a05533.html#l00105">105</a> of file <a class="el" href="a05533.html">vtkTerrainContourLineInterpolator.h</a>.</p>
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<hr>The documentation for this class was generated from the following file:<ul>
<li>dox/Widgets/<a class="el" href="a05533.html">vtkTerrainContourLineInterpolator.h</a></ul>
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<hr size="1"><address style="text-align: right;"><small>Generated on Wed Jun 3 19:38:46 2009 for VTK by
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<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.6 </small></address>
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