# Latest **URL:** https://shapeworks.discourse.group/latest.md [Latest](https://shapeworks.discourse.group/latest.md) · [Categories](https://shapeworks.discourse.group/categories.md) --- ## [Welcome to ShapeWorks Discussion Forum!](https://shapeworks.discourse.group/t/welcome-to-shapeworks-discussion-forum/7)
**Author:** [@system](https://shapeworks.discourse.group/u/system)\ **Replies:** 0\ **Last updated:** [January 27, 2021, 2:03pm UTC](https://shapeworks.discourse.group/t/welcome-to-shapeworks-discussion-forum/7 "2021-01-27T14:03:42Z")
What is ShapeWorks? ShapeWorks is a free, open-source, cross-platform software tool that uses a flexible method for automated construction of statistical landmark-based shape models of ensembles of anatomical shapes. W… --- ## [Potential ‘Save As’ Bug Preventing Import of New Shapes](https://shapeworks.discourse.group/t/potential-save-as-bug-preventing-import-of-new-shapes/419)
**Author:** [@Alexander](https://shapeworks.discourse.group/u/Alexander)\ **Replies:** 6\ **Last updated:** [September 15, 2026, 6:00pm UTC](https://shapeworks.discourse.group/t/potential-save-as-bug-preventing-import-of-new-shapes/419 "2026-09-15T18:00:59Z")
There’s a possibility I found a bug and wanted to flag it in case I am doing something wrong or anyone else comes across it. Setup: ShapeWorks 6.7, Windows. I’m doing a fixed-domains-style workflow: a healthy population… --- ## [Optimize on Callused/Damaged Bone](https://shapeworks.discourse.group/t/optimize-on-callused-damaged-bone/421)
**Author:** [@Alexander](https://shapeworks.discourse.group/u/Alexander)\ **Replies:** 2\ **Last updated:** [September 15, 2026, 5:47pm UTC](https://shapeworks.discourse.group/t/optimize-on-callused-damaged-bone/421 "2026-09-15T17:47:25Z")
I am working on a project that has a set of ‘fixed’ healthy tibia to train a model; Callused/Damaged Tibia are then added, and, ideally, I would run optimize, and use the Callused/Damaged particle files alongside the hea… --- ## [DeepSSM reverting to the mean](https://shapeworks.discourse.group/t/deepssm-reverting-to-the-mean/418)
**Author:** [@SLaranjeira](https://shapeworks.discourse.group/u/SLaranjeira)\ **Replies:** 4\ **Last updated:** [September 4, 2026, 5:17am UTC](https://shapeworks.discourse.group/t/deepssm-reverting-to-the-mean/418 "2026-09-04T05:17:36Z")
Hello, I have created a DeepSSM model of a vertebra using the TL-DeepSSM architecture. I have 100 original shapes; I augment them by 5x to 500, and I use the hyperparameters from the DeepSSM Python tutorial. For the ‘… --- ## [Creating a model of vessels](https://shapeworks.discourse.group/t/creating-a-model-of-vessels/415)
**Author:** [@SLaranjeira](https://shapeworks.discourse.group/u/SLaranjeira)\ **Replies:** 4\ **Last updated:** [August 7, 2026, 5:53am UTC](https://shapeworks.discourse.group/t/creating-a-model-of-vessels/415 "2026-08-07T05:53:48Z")
Hello, I am trying to create a model of vessels that have quite a bit of turtoisity. You can see a sample from this picture. I have done a parameter sweep over several parameter ranges, including: Geodisic distance… --- ## [Runtime Scaling for Large Datasets](https://shapeworks.discourse.group/t/runtime-scaling-for-large-datasets/417)
**Author:** [@wztao](https://shapeworks.discourse.group/u/wztao)\ **Replies:** 2\ **Last updated:** [June 28, 2026, 3:39pm UTC](https://shapeworks.discourse.group/t/runtime-scaling-for-large-datasets/417 "2026-06-28T15:39:00Z")
Hi, We are running ShapeWorks on datasets containing thousands of shapes and have noticed a cubic runtime growth with the number of shapes, and 100 iterations can take several days. Could you please share any insights i… --- ## [Specificity dip in metrics for long bone reconstruction](https://shapeworks.discourse.group/t/specificity-dip-in-metrics-for-long-bone-reconstruction/416)
**Author:** [@esmeer](https://shapeworks.discourse.group/u/esmeer)\ **Replies:** 1\ **Last updated:** [June 18, 2026, 1:54pm UTC](https://shapeworks.discourse.group/t/specificity-dip-in-metrics-for-long-bone-reconstruction/416 "2026-06-18T13:54:46Z")
Hi, I am currently working on building an SSM for deformed long bones (malunited ulna). I am trying to tweak the optimization parameters for an optimal SSM. The compactness and generalization is good, but for every run … --- ## [ShapeWorks 6.7.0 Release](https://shapeworks.discourse.group/t/shapeworks-6-7-0-release/413)
**Author:** [@amorris](https://shapeworks.discourse.group/u/amorris)\ **Replies:** 0\ **Last updated:** [May 6, 2026, 4:01pm UTC](https://shapeworks.discourse.group/t/shapeworks-6-7-0-release/413 "2026-05-06T16:01:41Z")
We are pleased to announce the release of ShapeWorks 6.7.0 Downloads available here: Release notes here: Watch a tour video here: --- ## [2D Contour Optimization: Particles flipping and self-intersecting during splitting and PCA](https://shapeworks.discourse.group/t/2d-contour-optimization-particles-flipping-and-self-intersecting-during-splitting-and-pca/411)
**Author:** [@MartaSaezGarmendia](https://shapeworks.discourse.group/u/MartaSaezGarmendia)\ **Replies:** 1\ **Last updated:** [May 3, 2026, 4:54pm UTC](https://shapeworks.discourse.group/t/2d-contour-optimization-particles-flipping-and-self-intersecting-during-splitting-and-pca/411 "2026-05-03T16:54:54Z")
Hi, I am currently working with 2D femur contours, but I am still struggling to get the particles to cover 100% of the shape across all my patients. There are still some gaps where the particles just don’t want to sprea… --- ## [Optimization issue: Particles clumping on a small section of the shape (Python API)](https://shapeworks.discourse.group/t/optimization-issue-particles-clumping-on-a-small-section-of-the-shape-python-api/410)
**Author:** [@MartaSaezGarmendia](https://shapeworks.discourse.group/u/MartaSaezGarmendia)\ **Replies:** 2\ **Last updated:** [April 16, 2026, 9:26am UTC](https://shapeworks.discourse.group/t/optimization-issue-particles-clumping-on-a-small-section-of-the-shape-python-api/410 "2026-04-16T09:26:36Z")
Hi everyone, I am currently working with 2D closed femur contours and I have transitioned to using the Python API. I managed to get the grooming step working (all shapes are successfully aligned to the center), but I am… --- ## [Cannot run Optimize on purely 2D .vtk files: "Run Optimize" button is grayed out](https://shapeworks.discourse.group/t/cannot-run-optimize-on-purely-2d-vtk-files-run-optimize-button-is-grayed-out/407)
**Author:** [@MartaSaezGarmendia](https://shapeworks.discourse.group/u/MartaSaezGarmendia)\ **Replies:** 3\ **Last updated:** [April 16, 2026, 12:29am UTC](https://shapeworks.discourse.group/t/cannot-run-optimize-on-purely-2d-vtk-files-run-optimize-button-is-grayed-out/407 "2026-04-16T00:29:19Z")
Hi everyone, I am trying to perform a shape analysis on a dataset of strictly 2D femur contours using .vtk files in ShapeWorks Studio. However, I am completely stuck at the transition between Grooming and Optimization. … --- ## [Initialization vs. optimization steps](https://shapeworks.discourse.group/t/initialization-vs-optimization-steps/404)
**Author:** [@matt](https://shapeworks.discourse.group/u/matt)\ **Replies:** 1\ **Last updated:** [April 13, 2026, 4:17am UTC](https://shapeworks.discourse.group/t/initialization-vs-optimization-steps/404 "2026-04-13T04:17:11Z")
I’ve been using shapeworks quite a bit in the last couple of weeks. One thing I’ve noticed in my data, and it seems like in other posts here, is how to setup optimization that results in a consistent and smooth mesh afte… --- ## [Headless on HPC cluster](https://shapeworks.discourse.group/t/headless-on-hpc-cluster/402)
**Author:** [@matt](https://shapeworks.discourse.group/u/matt)\ **Replies:** 3\ **Last updated:** [March 25, 2026, 10:15pm UTC](https://shapeworks.discourse.group/t/headless-on-hpc-cluster/402 "2026-03-25T22:15:42Z")
Hello, Great program and i’m just recently starting out with it. Has anyone successfully installed/used/built shapeworks on a HPC cluster system? I’ve used it on my Mac and setup parallel grooming/optimization python … --- ## [Hollow Shapes & How to use Reconstruction](https://shapeworks.discourse.group/t/hollow-shapes-how-to-use-reconstruction/401)
**Author:** [@Alexander](https://shapeworks.discourse.group/u/Alexander)\ **Replies:** 1\ **Last updated:** [March 25, 2026, 4:38pm UTC](https://shapeworks.discourse.group/t/hollow-shapes-how-to-use-reconstruction/401 "2026-03-25T16:38:48Z")
Hi - I am a new ShapeWorks user and I am aiming to optimize & analyze images of tibiae, and hopefully use this to reconstruct some images as well. Is working with an entire 3D model of a hollow bone (like a tibia) an is… --- ## [SSM of Branched Vascular Patient-Specific Geometries \_Branch Distortion](https://shapeworks.discourse.group/t/ssm-of-branched-vascular-patient-specific-geometries-branch-distortion/400)
**Author:** [@Nafis](https://shapeworks.discourse.group/u/Nafis)\ **Replies:** 1\ **Last updated:** [March 25, 2026, 4:35pm UTC](https://shapeworks.discourse.group/t/ssm-of-branched-vascular-patient-specific-geometries-branch-distortion/400 "2026-03-25T16:35:49Z")
Hi, I am currently working on a project to build SSM for branched vascular geometries, specifically models such as the aorta or coronary arteries. My goal is to obtain reliable PCA modes, generate new geometries from th… --- ## [Normals on thin shape become corrupted](https://shapeworks.discourse.group/t/normals-on-thin-shape-become-corrupted/399)
**Author:** [@bone123](https://shapeworks.discourse.group/u/bone123)\ **Replies:** 3\ **Last updated:** [March 25, 2026, 3:01pm UTC](https://shapeworks.discourse.group/t/normals-on-thin-shape-become-corrupted/399 "2026-03-25T15:01:37Z")
I have thin shapes, representing cortical bone consisting of an outer shell with normals facing outwards, and an inner shell with normals facing inwards. The documentation and many of the threads suggest the use of norma… --- ## [Particles do not move during optimisation](https://shapeworks.discourse.group/t/particles-do-not-move-during-optimisation/398)
**Author:** [@SLaranjeira](https://shapeworks.discourse.group/u/SLaranjeira)\ **Replies:** 2\ **Last updated:** [March 18, 2026, 3:05pm UTC](https://shapeworks.discourse.group/t/particles-do-not-move-during-optimisation/398 "2026-03-18T15:05:50Z")
Hello, I am developing a model that requires rigid registration of meshes based on the registration transform of CT images. I create a transform from the registered CTs, and then I apply that transform to the correspon… --- ## [Distance Weighted Discrimination](https://shapeworks.discourse.group/t/distance-weighted-discrimination/397)
**Author:** [@che85](https://shapeworks.discourse.group/u/che85)\ **Replies:** 1\ **Last updated:** [March 17, 2026, 3:51pm UTC](https://shapeworks.discourse.group/t/distance-weighted-discrimination/397 "2026-03-17T15:51:16Z")
Good morning, is it possible to do Distance Weighted Discrimination between groups? Thank you, Christian --- ## [Deep\_SSM Large Dataset Download Failing](https://shapeworks.discourse.group/t/deep-ssm-large-dataset-download-failing/395)
**Author:** [@bone123](https://shapeworks.discourse.group/u/bone123)\ **Replies:** 1\ **Last updated:** [March 5, 2026, 9:32pm UTC](https://shapeworks.discourse.group/t/deep-ssm-large-dataset-download-failing/395 "2026-03-05T21:32:33Z")
Hi, I am trying to run the Deep\_SSM use case. My internet is not that that fast and I am running into issues with the download failing due to the amazon cloud server running out of allotted time. I have login details f… --- ## [Optimization Parameters Tuning](https://shapeworks.discourse.group/t/optimization-parameters-tuning/393)
**Author:** [@blah4](https://shapeworks.discourse.group/u/blah4)\ **Replies:** 3\ **Last updated:** [February 25, 2026, 5:16pm UTC](https://shapeworks.discourse.group/t/optimization-parameters-tuning/393 "2026-02-25T17:16:30Z")
I am trying to optimize this shape model, however the reconstruction is bad. The mean shape (with and without the particles) as well as some samples after reconstruction and optimization parameters are attached below. Wo… --- ## [Uneven Distribution of Particles](https://shapeworks.discourse.group/t/uneven-distribution-of-particles/392)
**Author:** [@DanF](https://shapeworks.discourse.group/u/DanF)\ **Replies:** 1\ **Last updated:** [January 14, 2026, 8:43pm UTC](https://shapeworks.discourse.group/t/uneven-distribution-of-particles/392 "2026-01-14T20:43:56Z")
Hello, I have been trying around in shapeworks studio for some time with pelvis models. However, it appears that most particles consistently remain on 1 side of the model with only a few distributing to the other side. … --- ## [Reconstructed meshes are not optimal](https://shapeworks.discourse.group/t/reconstructed-meshes-are-not-optimal/390)
**Author:** [@irissterkenburg](https://shapeworks.discourse.group/u/irissterkenburg)\ **Replies:** 7\ **Last updated:** [January 12, 2026, 9:03am UTC](https://shapeworks.discourse.group/t/reconstructed-meshes-are-not-optimal/390 "2026-01-12T09:03:41Z")
Hello everyone, I am working on a model for prosthetic sockets. As for now, i tried with 128 and 256 particles, but I am not satisfied with the reconstructed meshes: Example 128 particles: Example 256 particles: … --- ## ['Run optimize' button blocked](https://shapeworks.discourse.group/t/run-optimize-button-blocked/333)
**Author:** [@dfrvanloon](https://shapeworks.discourse.group/u/dfrvanloon)\ **Replies:** 16\ **Last updated:** [December 16, 2025, 8:31am UTC](https://shapeworks.discourse.group/t/run-optimize-button-blocked/333 "2025-12-16T08:31:26Z")
Hi, We are running Shapeworks 6.6.0-dev and at the moment it is not possible to run the optimization step in Studio. The ‘Run optimize’ button is blocked for all users and we don’t know why. Are you familiar with this? … --- ## [Minimum system requirements for Studio](https://shapeworks.discourse.group/t/minimum-system-requirements-for-studio/389)
**Author:** [@Yuyoung](https://shapeworks.discourse.group/u/Yuyoung)\ **Replies:** 1\ **Last updated:** [November 26, 2025, 5:41am UTC](https://shapeworks.discourse.group/t/minimum-system-requirements-for-studio/389 "2025-11-26T05:41:21Z")
Hi all, I am trying to install ShapeWorks Studio and want to know about the minimum system requirements. I saw in Shapeworks Studio Platform Specifications that minimum recommended system configuration is as below: W… --- ## [Meniscus SSM Help](https://shapeworks.discourse.group/t/meniscus-ssm-help/379)
**Author:** [@aceegreene](https://shapeworks.discourse.group/u/aceegreene)\ **Replies:** 16\ **Last updated:** [November 17, 2025, 4:12pm UTC](https://shapeworks.discourse.group/t/meniscus-ssm-help/379 "2025-11-17T16:12:15Z")
Hi everyone - I have segmented menisci for which I want to do SSM using Shapeworks however, I am having trouble getting good results post optimization where the images appear jagged/spiky. The results post grooming at le… --- ## [Can not optimize](https://shapeworks.discourse.group/t/can-not-optimize/315)
**Author:** [@Ragavan](https://shapeworks.discourse.group/u/Ragavan)\ **Replies:** 5\ **Last updated:** [November 7, 2025, 8:36pm UTC](https://shapeworks.discourse.group/t/can-not-optimize/315 "2025-11-07T20:36:03Z")
Hello, I am working on knee bone morphing using Statistical Shape Modeling (SSM) and Principal Component Analysis (PCA). I have uploaded 22 left-side femur bones and successfully aligned them using Iterative Closest Poi… --- ## [Question about using ShapeWorks for transfemoral prosthetic socket shapes](https://shapeworks.discourse.group/t/question-about-using-shapeworks-for-transfemoral-prosthetic-socket-shapes/386)
**Author:** [@irissterkenburg](https://shapeworks.discourse.group/u/irissterkenburg)\ **Replies:** 4\ **Last updated:** [November 5, 2025, 11:15pm UTC](https://shapeworks.discourse.group/t/question-about-using-shapeworks-for-transfemoral-prosthetic-socket-shapes/386 "2025-11-05T23:15:35Z")
Dear ShapeWorks team, Your application looks fantastic. I was wondering whether ShapeWorks can also be applied to shapes derived from transfemoral prosthetic sockets (specifically the upper portion). I ask because these… --- ## [Cropped loaded meshes](https://shapeworks.discourse.group/t/cropped-loaded-meshes/385)
**Author:** [@nynkevj](https://shapeworks.discourse.group/u/nynkevj)\ **Replies:** 1\ **Last updated:** [November 3, 2025, 9:17pm UTC](https://shapeworks.discourse.group/t/cropped-loaded-meshes/385 "2025-11-03T21:17:00Z")
Hi, I used Shapeworks to create a statistical shape model of cartilage. At first my input was binary segmentations but now I am using a different dataset which has .stl meshes. I didn’t want to change my pipeline so I t… --- ## [Unable to save projects in ShapeWorks Studio](https://shapeworks.discourse.group/t/unable-to-save-projects-in-shapeworks-studio/384)
**Author:** [@AaronK](https://shapeworks.discourse.group/u/AaronK)\ **Replies:** 2\ **Last updated:** [October 24, 2025, 8:01am UTC](https://shapeworks.discourse.group/t/unable-to-save-projects-in-shapeworks-studio/384 "2025-10-24T08:01:07Z")
In ShapeWorks Studio 6.6.1, whenever trying to save a new project, I get the following error message: This happens regardless of what file type I try to save (.swproj / .xlsx) or the location (whether locally or on a… --- ## [Issues with Reconstruction](https://shapeworks.discourse.group/t/issues-with-reconstruction/383)
**Author:** [@anj030](https://shapeworks.discourse.group/u/anj030)\ **Replies:** 2\ **Last updated:** [October 23, 2025, 4:28am UTC](https://shapeworks.discourse.group/t/issues-with-reconstruction/383 "2025-10-23T04:28:17Z")
I have microCTs in STL files that I import into Shapeworks and have used different optimization parameters, but get similar results where it looks like it has issues with reconstruction of one or more distal femurs. Can … [Next page](https://shapeworks.discourse.group/latest.md?page=1)