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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hi Joel,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>use vtkLinearExtrusionFilter on your polyline to <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>make it into a thin ribbon/surface<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>before passing it on to vtkPolyDataToImageStecil.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>See VTK/Examples/GUI/Tcl/ImageTracerWidget.tcl<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>as an example. You could also look at ITK’s<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>itkAntiAliasBinaryImageFilter. There is<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>an example of how to use it here:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>http://www.itk.org/ITK/applications/AntiAliasBinaryImageFilterExample.html<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Dean<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>Dean Inglis, PhD<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>~~~~ Center for Appendicular ~~~~~<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>Magnetic Resonance Imaging Studies<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>610 - <st1:Street w:st="on"><st1:address w:st="on">25
Charlton Ave. E.</st1:address></st1:Street><o:p></o:p></span></font></p>
<p class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><font size=2
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>Hamilton</span></font></st1:City><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>,
<st1:State w:st="on">Ontario</st1:State>, <st1:PostalCode w:st="on">L8N 1Y2</st1:PostalCode></span></font></st1:place><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>Assistant Professor (Adjunct)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>Department of Civil Engineering<o:p></o:p></span></font></p>
<p class=MsoNormal><st1:place w:st="on"><st1:PlaceName w:st="on"><font size=2
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>McMaster</span></font></st1:PlaceName><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
<st1:PlaceType w:st="on">University</st1:PlaceType></span></font></st1:place><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></font></p>
<p class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><font size=2
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>Hamilton</span></font></st1:City><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>,
<st1:State w:st="on">Ontario</st1:State></span></font></st1:place><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></font></p>
<p class=MsoAutoSig><font size=2 face="Courier New"><span style='font-size:
10.0pt;font-family:"Courier New"'>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</span></font><o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>Software Demos:<o:p></o:p></span></font></p>
<p class=MsoAutoSig><font size=2 face="Courier New"><span style='font-size:
10.0pt;font-family:"Courier New"'><a
href="http://www.youtube.com/watch?v=_zYNtHC9-0s">http://www.youtube.com/watch?v=_zYNtHC9-0s</a><o:p></o:p></span></font></p>
<p class=MsoAutoSig><font size=2 face="Courier New"><span style='font-size:
10.0pt;font-family:"Courier New"'><o:p> </o:p></span></font></p>
<p class=MsoAutoSig><font size=2 face="Courier New"><span style='font-size:
10.0pt;font-family:"Courier New"'><o:p> </o:p></span></font></p>
<pre><font size=2 face="Courier New"><span style='font-size:10.0pt'>Hi all,<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>I'm trying to create a 3D surface mesh from a stack of 2D contours created<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>from a semi-manual contouring platform I have no control on. For now I have<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>succesfully converted the contours to vtk polylines. My idea is to binarize<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>the the polylines, and to run a marching cubes on the resulting binary<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>volume.<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Unfortunately, vtkPolyDataToImageStencil doesn't work for polylines. So<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>before I start coding a polyline binarizer, would anyone have a better idea,<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>or such a binarizer in stock? (the code will be integrated into the<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>open-source 4D viewer vv)<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Thanks,<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>joel<o:p></o:p></span></font></pre>
<p class=MsoAutoSig><font size=2 face="Courier New"><span style='font-size:
10.0pt;font-family:"Courier New"'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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