Hi Bouba,<br><br>I was checking on the method you propose, but I don't get to set the input correctly for the triangle filter, considering i'm defining the 2D contour using the vtkContourWidget, so there is where im stucked atm.<br>
<br>Checking vtkMassProperties I think surfacearea 'd suit well for computing area contained by the contour, hope you could give me an idea on how to connect the pipe between the contour widget and the triangle filter so I could test the rest.<br>
<br>Thx in advance,<br><br>Regards,<br>Rodrigo<br><div class="gmail_extra"><br><br><div class="gmail_quote">2012/11/29 Belaroussi, Boubakeur <span dir="ltr"><<a href="mailto:Boubakeur.Belaroussi@bioclinica.com" target="_blank">Boubakeur.Belaroussi@bioclinica.com</a>></span><br>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Hi Rodrigo,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></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:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></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<u></u><u></u></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.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Hope it helps<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Regards,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Bouba<u></u><u></u></span></p>
<p class="MsoNormal"><u></u> <u></u></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""> <a href="mailto:vtkusers-bounces@vtk.org" target="_blank">vtkusers-bounces@vtk.org</a> [mailto:<a href="mailto:vtkusers-bounces@vtk.org" target="_blank">vtkusers-bounces@vtk.org</a>]
<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++)<u></u><u></u></span></p><div><div class="h5">
<p class="MsoNormal"><u></u> <u></u></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>
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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>
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Id really appreciate any kind of help<br clear="all">
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-- <br>
<b><span style="font-family:"Arial","sans-serif";color:#000066">Rodrigo</span></b><u></u><u></u></p>
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</blockquote></div><br><br clear="all"><br>-- <br><b><font face="'comic sans ms', sans-serif" color="#000066">Rodrigo aka WarHearT</font></b><br>
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