<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>Dear vtk users;</DIV>
<DIV>I have a surface coordinate (like P(x,y,z)) of a 3D object. I would like to calculate just this point's normal. By means of the following code I think I get all point's normals? Then how can I get the P(x,y,z) 's normal? I mean that ,I just want to get point's normal which is specified by me. best regards</DIV>
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<DIV>vtkPolyDataNormals *dataset = vtkPolyDataNormals::New();<BR> dataset->SetInput(reader1->GetOutput());<BR> dataset->SetFeatureAngle(60.0);<BR> dataset->FlipNormalsOff();<BR> dataset->Update();<BR></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>