<div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">Hi Swetha,</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">how are your vectors represented? 3 numbers or a pair of points?</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">There is an angle-axis rotation function, <a href="https://itk.org/Doxygen/html/classitk_1_1AffineTransform.html#a7b2c85cdc28135827da937db01d87dd9">Rotate3D</a>.</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small"><div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">Regards,</div><div class="gmail_default"><font face="verdana, sans-serif">Dženan Zukić, PhD, Senior R&D Engineer, Kitware (Carrboro, N.C.)</font></div></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Sep 14, 2017 at 6:41 AM, Swetha Sharma <span dir="ltr"><<a href="mailto:swetha.bsharma@gmail.com" target="_blank">swetha.bsharma@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Dear All,<div><br></div><div><br></div><div> I would like to calculate a transformation matrix between two vectors using Itk. Right now I am manually calculating the translation parameter between the vector and the angle between the two vectors. Is there any other easy way to find the transformation matrix given the vectors? If not, Is there a function to calculate the rotation matrix given the angle and the axis of rotation is arbitary axis.</div><span class="HOEnZb"><font color="#888888"><div><br></div><div>-swetha</div><div><br></div><div><br></div></font></span></div>
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