<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>hello;</DIV>
<DIV>I have 2 questions:</DIV>
<DIV> 1- When we implement pointSetToImageRegistration Should we Set the center of transform like SetTransform(Center) ,if yes which data's center should it be,PointSet center or image center?</DIV>
<DIV> </DIV>
<DIV>2- I use VersorRigid3DTransform,and I want to set Versor by my self and see the effect of Versor. But I set the versor type like the following then I get the transform parameters to confirm the versor variables it says that <STRONG>versor<FONT color=#0080ff>[0</FONT>, 0, <FONT color=#ff0000> -0.26745</FONT>, 0.963572] Why do the versor variables not same what I set at the beginning?and What does the fourth one( 0.963572) indicate?</STRONG></DIV>
<DIV><STRONG></STRONG> </DIV>
<DIV><STRONG></STRONG> </DIV>
<DIV><FONT size=2>
<P><STRONG><FONT size=3>TransformType::VersorType versor;</FONT></STRONG></P>
<P><STRONG><FONT size=3>versor.SetRotationAroundX(<FONT color=#0080ff> 0.276538</FONT> );</FONT></STRONG></P>
<P><STRONG><FONT size=3>versor.SetRotationAroundY( 1.595315);</FONT></STRONG></P>
<P></FONT><STRONG>versor.SetRotationAroundZ(<FONT color=#ff0000> -0.5414906</FONT>);</STRONG></P><FONT size=3>
<P><STRONG>transform->SetRotation( versor );</STRONG></P></FONT></DIV></div><br>
<hr size=1>Expecting? Get great news right away with <a href="http://us.rd.yahoo.com/evt=49982/*http://advision.webevents.yahoo.com/mailbeta/newmail_tools.html">email Auto-Check.</a><br>Try the <a href="http://us.rd.yahoo.com/evt=49982/*http://advision.webevents.yahoo.com/mailbeta/newmail_tools.html">Yahoo! Mail Beta.</a></body></html>