Go to <a href="http://staff.science.uva.nl/~dshamoni/">http://staff.science.uva.nl/~dshamoni/</a> and visit "My Projects > Boolean". You can download its code from "Download > Boolean".<br><br>
<div><span class="gmail_quote">On 4/23/07, <b class="gmail_sendername">ѧ־ Ñî</b> <<a href="mailto:shulo1978@hotmail.com">shulo1978@hotmail.com</a>> wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">Hi everyone, I am quite new to VTK. I am trying to do polygon intersection<br>detection and extract the area which overlaps and reconstruct the
<br>overlapping part into a new polygon. The information of polygons is stored<br>in vtkPolyData, I have written an algorithm to detect intersection and<br>reconstruct new polygon. However, it doesn't work. Since I am quite new to
<br>vtk, I might make some mistakes. The question is as polygon infomation is<br>stored in vtkPolyData, do I need to use vtkCutter to cut through with a<br>vtkPlane to get 2D data? I didn't do this and straightaway extract the
<br>point(vtkPoints) in vtkPolyData and compare them. If I did this, can I still<br>store the data in vtkPolyData just as the point z value is zero? I dun know<br>whether I confuse you guys, if I didn't make myself clear, please let me
<br>know. Please do help me and I really appreciate. The main problem I have<br>really is lack of information of VTK. The documentation is a bit hard for me<br>to understand sometimes and not sufficient information : (... Thanks for
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