Hello everyone I am currently working on a morphometric analysis of the head shape in a invertabrate - planarians. Given that these are soft-bodied organisms with few homologous anatomical structures, I have found that fixed landmarks alone are insufficient to accurately capture the complexity of their morphology.
I am interested in implementing sliding semilandmarks to better represent the curves and outlines of the head region. However, I am seeking guidance on the best practices for this specific case, particularly regarding: 1. The optimal spacing and density of semilandmarks for highly plastic shapes. 2. Software recommendations or R packages (e.g., geomorph) that handle sliding semilandmarks effectively for outlines without many fixed anchor points. 3. Any specific protocols for minimizing measurement error in organisms that lack rigid biological anchors. If anyone has experience applying these methods to soft-bodied invertebrates or can point me toward relevant literature, I would greatly appreciate your insights. Thank you in advance for your time and assistance. Best regards, Carlos -- 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 visit https://groups.google.com/d/msgid/morphmet2/CALo00e%3DTbzBAZVpsRkF7H1CqYucQka%3DiakVKH2UAXh40tDN2pA%40mail.gmail.com.
