If you have saved the consensus configuration from the prior GPA, then all you need to do is to align the new specimen with that consensus configuration.
----------------------- F. James Rohlf, Distinguished Professor State University of New York, Stony Brook, NY 11794-5245 www: http://life.bio.sunysb.edu/ee/rohlf > -----Original Message----- > From: L C Morecroft [mailto:[EMAIL PROTECTED] > Sent: Wednesday, April 06, 2005 11:28 AM > To: [email protected] > Subject: Tangent Space > > Dear morphometricians, > > I have 2000 configurations of 30 landmark points in 3D space. > I have carried out a Generalized Procrustes Alignment (GPA) > on these configurations and now I have a query relating to > the tangent space......as I read that the points in the > tangent space can be related back to actual shapes in the > original 3D space....... > > So, if I obtain one additional configuration of the same 30 > landmark points, is there some method available to find out > where abouts in the tangent space (for the original 2000 > configurations) this new configuration will lie, without > having to repeat the GPA on 2001 configurations? > > If you don't want to reply to the list my e-mail address is: > > [EMAIL PROTECTED] > > Thanks in advance > > Lucy Morecroft > > Research Associate > University of Sheffield >
