Depending on the number of samples you have, as opposed to trying to transform the microscribe data to 3D model, you can try to redigitize all of it fairly quickly in SlicerMorph. Depending on the groups involved, you can designate a sample as a template, and then use the ALPACA module to automatically transfer the landmark onto the new models. If the morphological disparity is large, outcome is probably less then perfect and you may need to manually tweak the placement. With the new landmark tools in 3D Slicer/SlicerMorph (https://www.youtube.com/watch?v=m-z9vNRIhxg), this would be much faster than either trying to redo everything from scratch or calculate the transformations one specimen at a time.
On Monday, December 6, 2021 at 7:46:31 PM UTC-8 Murat Maga wrote: > This is a typical problem of having different coordinate systems for data > and the model. You can digitize 3-4 points off the models, and calculate > the rigid transformation that's necessary to bring your microscribe data > onto the model. Unfortunately you may have to do this for every specimen > one by one, as there is no guarantee that the rigid transformation will be > identical across your samples. > > On Monday, December 6, 2021 at 7:39:59 PM UTC-8 [email protected] > wrote: > >> Dear morphometricians, >> >> Hope you are doing well. I´m investigating cranial variation in some >> extant primate species. I have 3D coordinates derived from Microscribe >> obtained some time ago and now I have 3D models of the same skulls. I tried >> to plot in R the 3D coordinates derived from Microscribe in the 3D models >> but the coordinates did not correspond to the 3D models (see image >> attached). Does somebody know how I can correct this? I mean I want to >> match the 3D coordinates on each 3D model. I plan to perform a common GPA >> but I am not sure if I can combine both sets of coordinates derived from >> Microscribe and from the 3D models obtained in Avizo. Do you have any >> suggestions about this? Thanks in advance for your advice. >> >> All the best, >> >> Paolo >> >> >> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> >> Libre >> de virus. www.avast.com >> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> >> >> <#m_-8575235440654910992_m_-6529265892826492676_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> >> > -- You received this message because you are subscribed to the Google Groups "Morphmet" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/morphmet2/e77143c9-77ae-4a02-90d4-6f93f355b594n%40googlegroups.com.
