<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:14pt"><DIV>Hi all:<BR><BR>I have a set of 3D points. I want to find normal vector at each point on the surface. How I can<BR>do this in vtk? Are there any available methods to do this kind of stuff?<BR><BR>Can someone through some light on how to do this..</DIV>
<DIV>Tony<BR></DIV></div><br>
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