Sure you can. Here is a snapshot of your 3D model with some different types of "Markups" I randomly drew. Markups can be points (Fiducials), lines, curves (open or closed), and planes. You can use curves to resample equidistant points on the surface of the model (only the first and last point will be treated as fixed). Use fiducials are for landmarks. There are additional tools in SlicerMorph such as CreateSemiLMPatches module to create a patch-based semi-landmarks using trios of anatomical landmarks, or PseudoLMGenerator to create a dense-sampling of pseudoLMs that uses the underlying models geometry. Which of these would work for you depends on your question.
You can find detailed descriptions of SLicerMorph modules here: https://github.com/SlicerMorph/SlicerMorph#module-descriptions There are also links to the latest tutorials from those modules. If you are new to digitization for 3D morphometrics, I would highly encourage to take a look at our preprint at Biorxiv (https://www.biorxiv.org/content/10.1101/2020.11.09.374926v1.full.pdf+html) that contains a lot of detail that's hard to convey in scientific publications. I'd also advise against using STL format for quantitative morphology. STL doesn't have a length unit associated with their format definition. It is implicit. For example, 3D Slicer will treat all the values in an STL to be millimeters. So if the units of the software that generate the stl (for example meters is a common unit for surface scanner software) doesn't agree with the unit system that you are doing the data collection on, you may encounter scaling issues. The same issue applies to OBJ format too. My suggestion is to use PLY, if you can, which solves some of these problem. If you cannot, always double check the scale of the data independently. Good luck with your project, On Wednesday, February 24, 2021 at 2:04:20 AM UTC-8 Srikant Natarajan wrote: > Dear Prof Murat, > I downloaded slicer morph software , thank you for the recommendation. > can i use a Scan of a Cast (file attached) for marking the landmarks? > these are STL files and are too large to be uploaded in the group > > kindly share a video or instructions if any to learn this > > regards, > Srikant N > Centre for Forensic Odontology > Manipal Academy of Higher Education > > On Monday, 22 February 2021 at 21:36:12 UTC+5:30 [email protected] wrote: > >> IDAV Landmark editor is no longer maintained, and the latest version is >> about 15 years old. If you are just starting to do 3D geometrics >> morphometrics and landmarking, I would encourage you to take a minute or >> two to look 3D Slicer open source biomedical visualization package, and the >> SlicerMorph extension we developed for it. You can do everything in IDAV >> Landmark Editor, and a lot more. Video tutorials here show some of its >> functionality http://bit.ly/SM_youtube >> >> SlicerMorph module documentation can be found at >> https://github.com/SlicerMorph/SlicerMorph >> >> You can download 3D Slicer from https://download.slicer.org and install >> the SlicerMorph extension via the Extensions module as shown in the >> documents... >> >> On Sunday, February 21, 2021 at 8:22:58 PM UTC-8 Srikant Natarajan wrote: >> >>> Dear All, >>> I had installed Landmark software for marking 3D landmarks. The software >>> has developed a glitch. The Window A is shaded darker and am not able to >>> import any file into A. the A window seems to be disabled (screenshot >>> attached). The same when installed in another computer works fine. but >>> reinstalling in the same computer is giving this error. >>> I would be grateful if the experts in the group can suggest me a >>> solution >>> regards, >>> Srikant N >>> PhD scholar >>> Manipal Academy of Higher Education >>> INDIA >>> >> -- 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/morphmet2/9e514956-bd61-4d50-9a9e-ccf72ddb59f5n%40googlegroups.com.
