Hi all,
I am very new to Slicer so please excuse me for my ignorance. I am currently trying to understand how I can take an .iv file that represents a bone and output this onto slicer. Would love any help I can get. thank you in advance
What software did you use to create these .iv file?
Can you share an example?
(upload to dropbox/OneDrive and post the link here; make sure it does not contain patient information)
Thank you for your quick response. To be honest, I don’t know what software was used to create these .iv files as I am new to the lab and was just instructed to accomplish this. Attached below is a Google Drive link to an example of one of these files. Essentially just a bunch of 3D coordinate points that represent triangles and then points to distinguish how they are connected. I am able to run this in Matlab by simply calling on a built-in function after parsing through the data and was wondering if there is some slicer equivalent.
Sorry to be a bother, but any thoughts? I can’t seem to find any prior discussion post about this subject matter nor any documentation. Closest I have gotten is finding scripts that output PLY or STL files.
I haven’t worked with OpenInventor in a long time. As I recall the format is very free-form so probably no universal reader. You could start with OpenInventor code and maybe you can load using a demo program and save the parts you want in another format. Or you could try Mevislab, which is based on OpenInventor and has a free trial version with many options.
I had a look at the file and it is indeed an OpenInventor file, which stores a single triangle mesh in VRML 1.0 file format. I could not find any open-source file reader for it, so I’ve implemented a very simple reader and added to the Sandbox extension.
All you need to do is to install the Sandbox extension tomorrow or later into Slicer-5.2 (or later). You can then load your .iv files as usual: drag-and-drop to the application window or use “Add data” window.
Wow, Andras! thank you so much for making this reader for me! I have a follow-up question and was wondering if you could give me some guidance. The main part of my question is how can I access and manipulate the polyData after it is displayed. I want to be able to create a module that has a GUI with sliders that allow the user to transform the bones based on some transformation data we have.
I believe the answer to my question requires an understanding of high-level slicer architecture. I have tried to look into the various tutorials (videos and powerpoints) that discuss slicer architecture; however, I feel lost as I am a fresh novice to slicer. Any thoughts as to how I should approach this specific problem and become more confident creating a slicer module?
Thank you in advance for all your help thus far and continued support.
I’m glad it all works for you now. Please post a new question about the model transformation. Describe why/how you want to transform (e.g., do you want to align models, align model with an image, …).
I’m trying to import a .iv or .wrl file with the sandbox tool but defaults to volume and cannot open. Is there a newer way to do this? The files were created in Imaris software, so maybe they have some proprietary stamp that prevents it from working. Thoughts? Thanks much, Steve
It’s probably because the format is so flexibile that it can store many types of data. What I suggested above still holds true, about using MevisLab or OpenInventor.