Hi Stefan, Thank you very much for the tip. The *pcAlign* function worked like a charm!
Regards, Hildur On Thursday, February 5, 2015 at 3:45:56 PM UTC, Stefan Schlager wrote: > > Hi Hildur, > > you can try to use the function pcAlign (from my R-package Morpho), to > align meshes by their PC-axes. > And, if you like my (inofficial) package mesheR ( > https://github.com/zarquon42b/mesheR) is sporting a variety of rigid, > similarity, affine and elastic ICP registration procedures for 3D-meshes. > > Best > Stefan > > On 04/02/15 14:22, Hildur Magnúsdóttir wrote: > > Hi everyone, > > I'm using geometric morphometrics to study variation in the shell > morphology of the common whelk. I'm really interested in using 3D images as > a basis for this study but I'm having problems with manipulation and > registration (e.g. rigid registration) of my images prior to digitizing of > landmarks. > > I'm using a MakerBot® Digitizer™ Desktop 3D Scanner for capturing the 3D > images and it generates either .stl or .ply files that I read into the R > for digitizing. My problem is that when I read those files into the R they > are not all oriented in the same way inside the box in the rgl window, thus > it is very hard to align them reliably so that the landmarks are truly > comparable between individuals. > > So my question to you all is if you know of a method to align or register > the 3D images before I read them into R? Or of a package in R that can > perform this action? > > I would be very grateful for any advice on this, > > Hildur > > > Hildur Magnúsdóttir > PhD Student > University of Iceland, Department of Life and Environmental Sciences > and Hólar University College, Department of Aquaculture and Fish Biology > Telephone: +354 823 2485 > -- > MORPHMET may be accessed via its webpage at http://www.morphometrics.org > To unsubscribe from this group and stop receiving emails from it, send an > email to morphmet+u...@morphometrics.org <javascript:>. > > > -- MORPHMET may be accessed via its webpage at http://www.morphometrics.org To unsubscribe from this group and stop receiving emails from it, send an email to morphmet+unsubscr...@morphometrics.org.
