<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:12pt"><DIV>Hi all;</DIV>
<DIV>I would like to calculate normal vector of a point (x,y,z). Then I will go through either positive direction or negative direction of that normal vector to get i.e 5 density values per each direction. As a beginner of vtk I have some problems. Is there a vtk class to overcome this? any suggestions and any example will be very helpful for me.</DIV>
<DIV>Thanks in advance</DIV>
<DIV>Tony</DIV></div><br>__________________________________________________<br>Do You Yahoo!?<br>Tired of spam? Yahoo! Mail has the best spam protection around <br>http://mail.yahoo.com </body></html>