<div>Hello David,</div>
<div> </div>
<div>Thanks for the reply.</div>
<div> </div>
<div>I read the doc for vtkElevationFilter ( <a href="http://www.vtk.org/doc/release/4.2/html/classvtkElevationFilter.html">http://www.vtk.org/doc/release/4.2/html/classvtkElevationFilter.html</a> ). </div>
<div> </div>
<div>It says it computes the projection ( probably perpendicular distance ) of each point of my vtkPolyData onto the line.</div>
<div> </div>
<div>But what would be helpful in my case is the projection onto the ( xy, yz, zx ) coordinate planes.</div>
<div> </div>
<div>How do i go about doing this ?</div>
<div> </div>
<div>Let us simplify the problem....... Imaging for example we have a hemisphere vtkPolyData --- facing towards the viewer and centered at the origin ( 0 , 0 , 0 ).</div>
<div> </div>
<div>Now, if i cut it with a plane "y = 0" ---- i should get a curve -- a circle of radius ( R ) equal to that of the hemisphere.</div>
<div> </div>
<div>If i cut it with a plane "y = r / 2" ---- i will get another circle of a different radius.</div>
<div> </div>
<div>How can i extract these contour curves ???</div>
<div> </div>
<div>Thanks in advance.</div>
<div> </div>
<div>Regrads,</div>
<div> </div>
<div>Deepak<br> </div>
<div><span class="gmail_quote">On 2/28/06, <b class="gmail_sendername">David E DeMarle</b> <<a href="mailto:dave.demarle@kitware.com">dave.demarle@kitware.com</a>> wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">It sounds like you want to run the surface through an elevation filter<br>or three along each axis. Then you get the X, Y, and Z values at each
<br>point and to contour with.<br><br>hth,<br>Dave DeMarle<br><br><br>Deepak Roy wrote:<br><br>><br>> hello everyone,<br>><br>> I have a 3d surface scan of the front side a human body.<br>><br>> I want to do some analysis on the "surface contour lines" about the
<br>> y-axis ( the axis of symmetry for the human body ) and also the x-axis.<br>><br>> Which can be done approximately by converting the surface to a depth (<br>> range ) image.<br>><br>> Is there an easy way to achieve this in VTK ?
<br>><br>> Thanks in advance.<br>><br>> Regards,<br>><br>> Deepak Roy<br>><br>><br>><br>>------------------------------------------------------------------------<br>><br>>_______________________________________________
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