Dear Murat, Thank you very much for your suggestions. I'll try them.
With kind regards, Pablo <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Libre de virus.www.avg.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> El jue, 19 oct 2023 a las 14:51, Murat Maga (<[email protected]>) escribió: > the function in Morpho to do 3D mesh deformation is called tps3d. As > input, you need one reference mesh and its corresponding coordinates, and > new set of coordinates where it will be transformed to. So you have take > your PC value, convert to a landmark coordinate (e.g., for PC1 it would be > something like meanshape + PC1_eigenvector*scaling) and then call tps3d. I > think Geomorph warpRefMesh is similar. But please look up the documentation > for specifics. > > You can also do this interactively in SlicerMorph GPA's module using its > interactive visualization. If you have too many landmarks (hundreds range) > it will be a bit slow. > > On Thursday, October 19, 2023 at 10:24:05 AM UTC-7 Pablo Fisichella wrote: > >> >> Dear morphogeometricians >> >> Hope you are well. I ran a GM analysis using 3D landmarks obtained in >> aviso for mice skulls and I used shapes and Morpho R packages. I’m trying >> to obtain deformations (so-called warping or morphing) for the negative and >> positive PC shape changes of a 3D model. However, I can’t find a method to >> do this in R. I realized Morpho allows to obtain a 3D warp movie but I’m >> not sure that method is the one I’m looking for and in Geomorph there is a >> function (warpRefMesh) to create warpings but using just the mean shape >> (ref) and a specific individual not for PCs. I have used MorphoJ and >> Landmark IDAV to do this in the past but since I’m using a lot of >> semilandmarks it is a bit difficult to digitize my dataset in Landmark to >> do the warpings. I uploaded my dataset in Morpho, and by using the function >> write.pts I was able to transform the 3D coordinates in a .PTS file. >> Despite that the file uploads correctly in the corresponding mesh in >> Landmark I don’t know why I can’t run the method explained in the MorphoJ >> user guide. It seems the landmarks uploaded in Landmark must be obtained >> directly in Landmark IDAV and not using the method described above. In any >> case, I want to obtain 3D shape deformations of a 3D mesh according to PC >> scores in R but I was not able to use any of the methods mentioned above in >> Morpho and Geomorph. Thanks in advance for any help with this issue. >> >> All best, >> >> Pablo >> >> >> >> <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> >> Libre >> de virus.www.avg.com >> <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> >> <#m_7969819521210812789_m_-7693562851123069935_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/f78822f5-43b2-4b7b-bd87-5fa14b8979b2n%40googlegroups.com > <https://groups.google.com/d/msgid/morphmet2/f78822f5-43b2-4b7b-bd87-5fa14b8979b2n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- 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/CANPrD1hkxJmt33vGGi9XTxmTMcKzUh1t1sB-Dg1LQx3iVfriuQ%40mail.gmail.com.
