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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi Rodrigo,<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">For 2D contours, you can use the following pipeline:<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">1. Transform your contour points into triangles, using vtkTriangleFilter, which creates triangle polygons from input polygons and triangle strips<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">2. Then, to get the area of your contour, among other features, you can use the vtkMassProperties filter, which estimates volume, area, shape index of triangle
mesh.<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">Hope it helps<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Bouba<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></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>Rodrigo Lovera<br>
<b>Sent:</b> jeudi 29 novembre 2012 18:01<br>
<b>To:</b> VTK Users<br>
<b>Subject:</b> [vtkusers] Comput the area contained by a contour (VTK C++)<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hello everyone,<br>
<br>
I was wondering if any of you know a method to compute the area cointained by a figure or maybe something like the contourwidget which shape can be changed at will.<br>
<br>
What I need -d be some kind of implementation or code or guide on how to perform that math operation, similar to the distance widget but what I need to compute now is area.<br>
<br>
Id really appreciate any kind of help<br clear="all">
<br>
-- <br>
<b><span style="font-family:"Arial","sans-serif";color:#000066">Rodrigo</span></b><o:p></o:p></p>
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