----- Forwarded message from sebastien couette <[email protected]> -----

Date: Fri, 24 May 2013 10:00:18 -0400
From: sebastien couette <[email protected]>
Reply-To: sebastien couette <[email protected]>
Subject: Re: Missing landmarks in 3D
To: [email protected]

Dear Diego,

I have a protocole using R for symetrizing my landmarks.

I can sent it to you.

I think you can make a better one (I use excel and R and I am sure everything can be done with R) but it works.

Regards

Sébastien




Le 23/05/13 05:44, [email protected] a écrit :


----- Forwarded message from Diego Astua de Moraes <[email protected]> -----

Date: Wed, 22 May 2013 09:50:23 -0400
From: Diego Astua de Moraes <[email protected]>
Reply-To: Diego Astua de Moraes <[email protected]>
Subject: Missing landmarks in 3D
To: [email protected]

This may be obvious to several here, but as this is our first work with 3D lmks, I probably missed an easy step.
Is there a straightforward way to obtain a landmark by reflecting its symmetric through the saggital plane (I want to replace a missing lmk that is present on the other side). I can do that easily in 2D by translating and rotating the midline so that it matches the x or y axis, and the obtain the reflected lmk, but I don´t deal that well with 3D translations and rotations...
I would like to do that on my landmark set before "gluing" the dorsal and ventral datasets on DVLR. DVLR does provide the option of a missing landmark but it is still missing the the combined view...
In time, I am only going through this because my sample size for this particular taxon is really small and every specimen matters, and because the missing landmark is a different one in each specimen (meaning I cannot simply discard that lmk...).
Thanks
Diego

Diego Astúa de Moraes, D.Sc.
Laboratório de Mastozoologia
Departamento de Zoologia, Universidade Federal de Pernambuco
Av. Professor Moraes Rego, s/n. Cidade Universitária
50670-420 Recife, PE, Brasil.
Te./Fax: (81) 2126-8353
email: [email protected] / [email protected]
http://www.ufpe.br/mastozoologia/



----- End forwarded message -----





--
-----------------------------------------
Dr. Sébastien Couette

EPHE&UMR CNRS 6282 Biogéosciences
Université de Bourgogne
6 Bld Gabriel
21000 Dijon

Tél.: 33. (0)3.80.39.64.48
Fax : 33. (0)3.80.39.63.87

[email protected]
http://www.u-bourgogne.fr/BIOGEOSCIENCE/

Responsable de la spécialité "Environnement et Gestion de la Biodiversité"
du Master "Biologie Santé Ecologie" de l'EPHE

Master EPHE spécialité "Biodiversité et Gestion de l'Environnement"
http://biodiv-envt-ephe-prefig.com/



----- End forwarded message -----



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