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<p class="MsoNormal"><span lang="EN-CA">Hi everyone, <br>
<br>
I added a new bug on the gitlab repo: Issue #17101<br>
<br>
The GetNumberOfPoints is the same as before the extraction (bad), while the GetNumberOfCells has only the cell count of the specified regions (good).<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA"><br>
Example code:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA">vtkSmartPointer<vtkPolyDataConnectivityFilter> connectivity = vtkSmartPointer<vtkPolyDataConnectivityFilter>::New();<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA">connectivity->SetInputData(inputpolydata->GetOutput());<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA">connectivity->SetExtractionModeToAllRegions();<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA">connectivity->Update();<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA">for (int i = 0; i < connectivity->GetNumberOfExtractedRegions(); ++i)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA">{<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif"> </span><span lang="EN-CA">connectivity->SetExtractionModeToSpecifiedRegions();<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif"> </span><span lang="EN-CA">connectivity->InitializeSpecifiedRegionList();<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif"> </span><span lang="EN-CA">connectivity->AddSpecifiedRegion(i);<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif"> </span><span lang="EN-CA">connectivity->Modified();<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif"> </span><span lang="EN-CA">connectivity->Update();<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif"> </span><span lang="EN-CA">vtkSmartPointer<vtkPolyData> extractedRegion = vtkSmartPointer<vtkPolyData>::New();<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif"> </span><span lang="EN-CA">extractedRegion->DeepCopy(connectivity->GetOutput());<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif"> </span><span lang="EN-CA">cout << "points extracted region: " << extractedRegion->GetNumberOfPoints() << endl;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-family:"Times New Roman",serif"> </span><span lang="EN-CA">cout << "cells extracted region: " << extractedRegion->GetNumberOfCells() << endl;<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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