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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi Graham,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Did you take a look at this example:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><a href="http://vtk.org/gitweb?p=VTK.git;a=blob;f=Examples/Statistics/ExampleKMeansStatistics.cxx">http://vtk.org/gitweb?p=VTK.git;a=blob;f=Examples/Statistics/ExampleKMeansStatistics.cxx</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">At first glance, it seems more complete than the one on the wiki. I haven’t used that filter but<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">it’s at least another reference for you.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I’ve done quite a bit with VTK in native and wrapped languages and found that most of it is 1-to-1.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">The limitations I’ve found are usually due to wrapping restrictions based on incompatibility in the languages.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">And even in those cases, there is usually a way around it (I’m looking at you vtkAlgorithm::SetInputArrayToProcess
</span><span style="font-size:11.0pt;font-family:Wingdings;color:#1F497D">J</span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> )<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Lots of people are using VTK in Java and other wrapped languages as well so if you have questions just post to the list and<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">someone will be glad to point you in the right direction.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Gerrick<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> vtkusers-bounces@vtk.org [mailto:vtkusers-bounces@vtk.org]
<b>On Behalf Of </b>Graham Seed<br>
<b>Sent:</b> Tuesday, July 02, 2013 3:27 AM<br>
<b>To:</b> vtkusers@vtk.org<br>
<b>Subject:</b> [vtkusers] C++ to Java mapping guide?<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hi<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Working through the KMeansClustering C++ example, it is difficult to convert the code from C++ to Java.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Another problem I found is the line:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<pre style="line-height:14.4pt;vertical-align:top"><span style="font-size:8.0pt;color:black">vtkVariant v </span><span style="font-size:8.0pt;color:navy">=</span><span style="font-size:8.0pt;color:black"> kMeansStatistics</span><span style="font-size:8.0pt;color:#000040">-</span><span style="font-size:8.0pt;color:navy">></span><span style="font-size:8.0pt;color:black">GetOutput</span><span style="font-size:8.0pt;color:green">()</span><span style="font-size:8.0pt;color:#000040">-</span><span style="font-size:8.0pt;color:navy">></span><span style="font-size:8.0pt;color:black">GetValue</span><span style="font-size:8.0pt;color:green">(</span><span style="font-size:8.0pt;color:black">r,kMeansStatistics</span><span style="font-size:8.0pt;color:#000040">-</span><span style="font-size:8.0pt;color:navy">></span><span style="font-size:8.0pt;color:black">GetOutput</span><span style="font-size:8.0pt;color:green">()</span><span style="font-size:8.0pt;color:#000040">-</span><span style="font-size:8.0pt;color:navy">></span><span style="font-size:8.0pt;color:black">GetNumberOfColumns</span><span style="font-size:8.0pt;color:green">()</span><span style="font-size:8.0pt;color:black"> </span><span style="font-size:8.0pt;color:#000040">-</span><span style="font-size:8.0pt;color:black"> </span><span style="font-size:8.0pt;color:#0000DD">1</span><span style="font-size:8.0pt;color:green">)</span><span style="font-size:8.0pt;color:teal">;</span><span style="font-size:8.0pt;color:black"><o:p></o:p></span></pre>
<pre style="line-height:14.4pt;vertical-align:top"><span style="font-size:8.0pt;color:teal"><br><br><o:p></o:p></span></pre>
<pre style="line-height:14.4pt;vertical-align:top"><span style="font-size:8.0pt;color:teal"><br><br><o:p></o:p></span></pre>
<pre style="vertical-align:top"><span style="font-size:8.0pt;color:teal">In Java the GetOutput() method returns an object of type </span><span style="font-size:7.5pt;color:teal">vtkTable, which does not support the GetValue() method?</span><o:p></o:p></pre>
<pre style="vertical-align:top"><o:p> </o:p></pre>
<pre style="vertical-align:top"><span style="font-size:7.5pt;color:teal">It does support the GetRow() method which returns an object of type vtkVariantArray but can't see an easy way to get values out of the variant array.</span><o:p></o:p></pre>
<pre style="vertical-align:top"><o:p> </o:p></pre>
<pre style="vertical-align:top"><span style="font-size:7.5pt;color:teal">I must say that trying to get these simple examples is proving very difficult, and can only imagine how difficult it must be for real life examples.</span><o:p></o:p></pre>
<pre style="vertical-align:top"><o:p> </o:p></pre>
<pre style="vertical-align:top"><span style="font-size:7.5pt;color:teal">Thanks.</span><o:p></o:p></pre>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">-- <br>
Graham<br>
<a href="mailto:gmseed@gmail.com" target="_blank">gmseed@gmail.com</a><o:p></o:p></p>
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