# Latest

**URL:** https://shapeworks.discourse.group/latest.md?page=1

[Latest](https://shapeworks.discourse.group/latest.md) · [Categories](https://shapeworks.discourse.group/categories.md)

**Page:** 2

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## [Shape over Time](https://shapeworks.discourse.group/t/shape-over-time/378)

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**Author:** [@wztao](https://shapeworks.discourse.group/u/wztao)\
**Replies:** 6\
**Last updated:** [October 22, 2025, 6:09pm UTC](https://shapeworks.discourse.group/t/shape-over-time/378 "2025-10-22T18:09:20Z")

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Hi, we are interested in modeling shape over time. Has this functionality been integrated in the current version of ShapeWorks? I have seen two relevant papers (Particle Based Shape Regression of Open Surfaces with Appli…

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## [Grooming problems in brain ventricles](https://shapeworks.discourse.group/t/grooming-problems-in-brain-ventricles/377)

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**Author:** [@a2551465](https://shapeworks.discourse.group/u/a2551465)\
**Replies:** 1\
**Last updated:** [August 28, 2025, 6:09pm UTC](https://shapeworks.discourse.group/t/grooming-problems-in-brain-ventricles/377 "2025-08-28T18:09:07Z")

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Hello, I encountered such a problem during grooming. The first image is my original ventricle file, and the last one is the file after grooming. You will notice that the ventricle file, which was originally one shape, ha…

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## [Rigid Transformation Matrix](https://shapeworks.discourse.group/t/rigid-transformation-matrix/376)

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**Author:** [@Tooth](https://shapeworks.discourse.group/u/Tooth)\
**Replies:** 1\
**Last updated:** [August 28, 2025, 6:05pm UTC](https://shapeworks.discourse.group/t/rigid-transformation-matrix/376 "2025-08-28T18:05:20Z")

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Hi! In ShapeWorks, when performing optimization, does the rigid transformation matrix used to map shapes into the shape space remain fixed during the optimization, or does it change throughout the process?

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## [Poor construction after doing the optimization](https://shapeworks.discourse.group/t/poor-construction-after-doing-the-optimization/374)

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**Author:** [@Ayham1](https://shapeworks.discourse.group/u/Ayham1)\
**Replies:** 8\
**Last updated:** [August 20, 2025, 6:09pm UTC](https://shapeworks.discourse.group/t/poor-construction-after-doing-the-optimization/374 "2025-08-20T18:09:33Z")

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## [Creating a MD-SSM for Subtalar Joint](https://shapeworks.discourse.group/t/creating-a-md-ssm-for-subtalar-joint/308)

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**Author:** [@Lyk](https://shapeworks.discourse.group/u/Lyk)\
**Replies:** 15\
**Last updated:** [August 14, 2025, 8:44pm UTC](https://shapeworks.discourse.group/t/creating-a-md-ssm-for-subtalar-joint/308 "2025-08-14T20:44:38Z")

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Hi, I want to creating a MD-SSM for Subtalar Joint. Currently, I would like to complete a preliminary experiment using ShapeWorks. I have 20 cases of talus and 20 cases of calcaneus from 10 individuals. (All files are …

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## [Reconstructing Shapes from Mean + Eigenvectors — How to Generate the Mesh?](https://shapeworks.discourse.group/t/reconstructing-shapes-from-mean-eigenvectors-how-to-generate-the-mesh/369)

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**Author:** [@pstrimber](https://shapeworks.discourse.group/u/pstrimber)\
**Replies:** 6\
**Last updated:** [August 7, 2025, 5:51am UTC](https://shapeworks.discourse.group/t/reconstructing-shapes-from-mean-eigenvectors-how-to-generate-the-mesh/369 "2025-08-07T05:51:22Z")

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Hi everyone, I’m trying to reconstruct my shapes using the mean and the eigenvectors with the formula reconstructed = mean\_particles + score\[0\] \* eigenvector\[0\] + score\[1\] \* eigenvector\[1\] + … My model contains 256 pa…

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## [Failed to wrap back to original mesh using mean mesh](https://shapeworks.discourse.group/t/failed-to-wrap-back-to-original-mesh-using-mean-mesh/359)

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**Author:** [@Liu](https://shapeworks.discourse.group/u/Liu)\
**Replies:** 16\
**Last updated:** [July 2, 2025, 6:34pm UTC](https://shapeworks.discourse.group/t/failed-to-wrap-back-to-original-mesh-using-mean-mesh/359 "2025-07-02T18:34:02Z")

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Dear ShapeWorks Support Team, I am currently using ShapeWorks to build a statistical shape model for a set of 146 right ventricle surface meshes. My goal is to compute a mean shape (template) and then use that mean temp…

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## [Multiple Domain SSM](https://shapeworks.discourse.group/t/multiple-domain-ssm/362)

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**Author:** [@blah4](https://shapeworks.discourse.group/u/blah4)\
**Replies:** 6\
**Last updated:** [July 1, 2025, 11:27pm UTC](https://shapeworks.discourse.group/t/multiple-domain-ssm/362 "2025-07-01T23:27:30Z")

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Hi, I am trying to create a lumbar vertebrae model on ShapeWorks, I only started using ShapeWorks this week so I wanted some guidance regarding my task. I have 50 segmentations per L1-L5 vertebrae (so 250 segmentations …

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## [Exporting meshes for Multiple Domain SSM](https://shapeworks.discourse.group/t/exporting-meshes-for-multiple-domain-ssm/364)

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**Author:** [@blah4](https://shapeworks.discourse.group/u/blah4)\
**Replies:** 3\
**Last updated:** [July 1, 2025, 11:26pm UTC](https://shapeworks.discourse.group/t/exporting-meshes-for-multiple-domain-ssm/364 "2025-07-01T23:26:49Z")

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I have my multiple domain model on the studio ready, I want to export the meshes for my combined model that I made using 50 cases of L1-L5 vertebrae each to create a full spine model. However, the meshes stored after gro…

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## [Poor Reconstruction After Optimization](https://shapeworks.discourse.group/t/poor-reconstruction-after-optimization/345)

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**Author:** [@NicolasWildbaum](https://shapeworks.discourse.group/u/NicolasWildbaum)\
**Replies:** 4\
**Last updated:** [June 27, 2025, 6:18am UTC](https://shapeworks.discourse.group/t/poor-reconstruction-after-optimization/345 "2025-06-27T06:18:41Z")

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Hi there! I am working on a research project involving ulnar fractures. Specifically, I am trying to identify the fracture type for each patient by analysing 3-D images generated from CT scans. This is my first time usin…

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## [How to output the PCA component score of shape and pose seperately?](https://shapeworks.discourse.group/t/how-to-output-the-pca-component-score-of-shape-and-pose-seperately/240)

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**Author:** [@PaulSchneider](https://shapeworks.discourse.group/u/PaulSchneider)\
**Replies:** 6\
**Last updated:** [June 12, 2025, 6:38pm UTC](https://shapeworks.discourse.group/t/how-to-output-the-pca-component-score-of-shape-and-pose-seperately/240 "2025-06-12T18:38:25Z")

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I am using the multi-domain SSM of Shapeworks. I want to know how to output the PCA component score of shape and pose seperately? Currently, It seems that the outputed score mixed shape variant and pose variant together. …

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## [Shapeworks Installation Error](https://shapeworks.discourse.group/t/shapeworks-installation-error/353)

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**Author:** [@bbeasley](https://shapeworks.discourse.group/u/bbeasley)\
**Replies:** 1\
**Last updated:** [June 10, 2025, 7:11pm UTC](https://shapeworks.discourse.group/t/shapeworks-installation-error/353 "2025-06-10T19:11:04Z")

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I recently installed ShapeWorks Studio 6.6.1 and would like to install the python modules as well. I’ve already downloaded miniconda and attempted to run the install shapeworks batch file but I’m running into an error. T…

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## [Error in remeshing step](https://shapeworks.discourse.group/t/error-in-remeshing-step/349)

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**Author:** [@pstrimber](https://shapeworks.discourse.group/u/pstrimber)\
**Replies:** 6\
**Last updated:** [June 6, 2025, 7:53pm UTC](https://shapeworks.discourse.group/t/error-in-remeshing-step/349 "2025-06-06T19:53:48Z")

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Hi everyone, I’ve been using ShapeWorks for a few weeks and I have a few questions regarding the grooming step. Both in ShapeWorks Studio and using Python, the process gets stuck during the remeshing step. I’d like to k…

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## [Export MLCA eigenvalues](https://shapeworks.discourse.group/t/export-mlca-eigenvalues/346)

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**Author:** [@ongrec](https://shapeworks.discourse.group/u/ongrec)\
**Replies:** 1\
**Last updated:** [May 27, 2025, 3:10pm UTC](https://shapeworks.discourse.group/t/export-mlca-eigenvalues/346 "2025-05-27T15:10:57Z")

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Is it possible to export the eigenvalues of MLCA (shape, pose, and shape+pose) for a multi-object SSM? Currently, it is only possible for PCA.

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## [ShapeWorks 6.6.0 Release](https://shapeworks.discourse.group/t/shapeworks-6-6-0-release/342)

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**Author:** [@amorris](https://shapeworks.discourse.group/u/amorris)\
**Replies:** 0\
**Last updated:** [May 6, 2025, 9:36pm UTC](https://shapeworks.discourse.group/t/shapeworks-6-6-0-release/342 "2025-05-06T21:36:55Z")

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We are pleased to announce the release of ShapeWorks 6.6.0 Download available here: Release notes here: Watch a tour video here:

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## [Unable to initialize Python in ver 6.4 and 6.5(dev)](https://shapeworks.discourse.group/t/unable-to-initialize-python-in-ver-6-4-and-6-5-dev/161)

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**Author:** [@Yuyoung](https://shapeworks.discourse.group/u/Yuyoung)\
**Replies:** 8\
**Last updated:** [May 6, 2025, 7:24pm UTC](https://shapeworks.discourse.group/t/unable-to-initialize-python-in-ver-6-4-and-6-5-dev/161 "2025-05-06T19:24:00Z")

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Hello, I am currently working with human mandible with ShapeWorks but I have some problem on version 6.4 and 6.5 (dev). I didn’t know that there was a new release so I’ve tried to install the new version and the dev ver…

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## [Different Results Between ShapeWorks Studio and Python Pipeline for Multiple Domain SSM](https://shapeworks.discourse.group/t/different-results-between-shapeworks-studio-and-python-pipeline-for-multiple-domain-ssm/334)

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**Author:** [@ongrec](https://shapeworks.discourse.group/u/ongrec)\
**Replies:** 3\
**Last updated:** [May 6, 2025, 7:21pm UTC](https://shapeworks.discourse.group/t/different-results-between-shapeworks-studio-and-python-pipeline-for-multiple-domain-ssm/334 "2025-05-06T19:21:42Z")

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After going through the multiple domain use-cases, I started developing a multiple domain SSM for pediatric forearms. Initially, I used ShapeWorks Studio, but I quickly noticed that the results were not properly aligned …

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## [Result extraction and Expectations](https://shapeworks.discourse.group/t/result-extraction-and-expectations/338)

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**Author:** [@Humzz](https://shapeworks.discourse.group/u/Humzz)\
**Replies:** 6\
**Last updated:** [April 30, 2025, 2:32pm UTC](https://shapeworks.discourse.group/t/result-extraction-and-expectations/338 "2025-04-30T14:32:41Z")

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Hello folks, I am working on a geometrical analysis project for some ~40 aortic models. I have achieved the following optimization with particles not perfectly splattered across however, they kind of are. I am currentl…

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## [Difficulties Tuning Particle Optimization Parameters](https://shapeworks.discourse.group/t/difficulties-tuning-particle-optimization-parameters/191)

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**Author:** [@dbob](https://shapeworks.discourse.group/u/dbob)\
**Replies:** 13\
**Last updated:** [April 27, 2025, 1:30am UTC](https://shapeworks.discourse.group/t/difficulties-tuning-particle-optimization-parameters/191 "2025-04-27T01:30:32Z")

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Hello, I am running into some problems with the particle optimization. As recommended on Github I am using a small subset of geometries (N=9) to explore the performance of the optimization and quickly iterate on changes…

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## [Weird shapes in Analysis results](https://shapeworks.discourse.group/t/weird-shapes-in-analysis-results/336)

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**Author:** [@Windy](https://shapeworks.discourse.group/u/Windy)\
**Replies:** 0\
**Last updated:** [April 25, 2025, 3:40am UTC](https://shapeworks.discourse.group/t/weird-shapes-in-analysis-results/336 "2025-04-25T03:40:52Z")

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\[Found a similar question\]

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## [Aligment problems](https://shapeworks.discourse.group/t/aligment-problems/330)

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**Author:** [@SLaranjeira](https://shapeworks.discourse.group/u/SLaranjeira)\
**Replies:** 3\
**Last updated:** [March 21, 2025, 3:43pm UTC](https://shapeworks.discourse.group/t/aligment-problems/330 "2025-03-21T15:43:53Z")

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Hello, I have created a DeepSSM model for each bone of the lumbar spine. I now want to use it to segment CT scans that are not part of the train/validate/test dataset. However, I am bumping against the problem of havi…

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## [Multiple Domain SSM: MLCA pose = shape variation](https://shapeworks.discourse.group/t/multiple-domain-ssm-mlca-pose-shape-variation/326)

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**Author:** [@ongrec](https://shapeworks.discourse.group/u/ongrec)\
**Replies:** 1\
**Last updated:** [March 14, 2025, 5:08pm UTC](https://shapeworks.discourse.group/t/multiple-domain-ssm-mlca-pose-shape-variation/326 "2025-03-14T17:08:32Z")

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To familiarize myself with multiple domain SSM, I have been following the ShapeWorks use case tutorials (ellipsoid\_multiple\_domain\_mesh and hip\_multiple\_domain), using the latest version of ShapeWorks (v6.5.1). Despite …

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## [“Multiple Domains SSM” in deepssm pipeline？](https://shapeworks.discourse.group/t/multiple-domains-ssm-in-deepssm-pipeline/327)

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**Author:** [@a2551465](https://shapeworks.discourse.group/u/a2551465)\
**Replies:** 1\
**Last updated:** [March 14, 2025, 5:00pm UTC](https://shapeworks.discourse.group/t/multiple-domains-ssm-in-deepssm-pipeline/327 "2025-03-14T17:00:36Z")

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Due to the extremely large volume of my data, it is difficult to run successfully on the studio. Therefore, I adopted deepssm for analysis. However, in my research, each shape actually has four parts (voxels belonging to…

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## [Trouble in large data process](https://shapeworks.discourse.group/t/trouble-in-large-data-process/319)

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**Author:** [@a2551465](https://shapeworks.discourse.group/u/a2551465)\
**Replies:** 4\
**Last updated:** [March 13, 2025, 11:11am UTC](https://shapeworks.discourse.group/t/trouble-in-large-data-process/319 "2025-03-13T11:11:12Z")

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When performing batch processing of segmentation using Python, the groom stage encountered an exit139 error while executing the find\_reference\_image\_index function. Currently, my solution is to manually specify an index,…

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## [Shape Model Evaluation - ShapeWorks](https://shapeworks.discourse.group/t/shape-model-evaluation-shapeworks/322)

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**Author:** [@h\_poole99](https://shapeworks.discourse.group/u/h_poole99)\
**Replies:** 1\
**Last updated:** [March 11, 2025, 7:25pm UTC](https://shapeworks.discourse.group/t/shape-model-evaluation-shapeworks/322 "2025-03-11T19:25:08Z")

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When calculating specificity in the shapeworks studio how many random shape samples are generated across the modes of variation to compare with training shapes. Is it a default value, based on the number of training sh…

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## [Mean Shape Calculation](https://shapeworks.discourse.group/t/mean-shape-calculation/320)

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**Author:** [@Ragavan](https://shapeworks.discourse.group/u/Ragavan)\
**Replies:** 1\
**Last updated:** [February 22, 2025, 12:16am UTC](https://shapeworks.discourse.group/t/mean-shape-calculation/320 "2025-02-22T00:16:14Z")

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Hello Alan , I am working for knee bone morphing , initially i am trying with 22 left Femurs , i groomed using (ICP) alignment data (input in .stl format) , and i did the optimization in the shape works studio . now …

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## [Contour-based Particle Optimization Issues](https://shapeworks.discourse.group/t/contour-based-particle-optimization-issues/311)

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**Author:** [@edwin\_asdf](https://shapeworks.discourse.group/u/edwin_asdf)\
**Replies:** 3\
**Last updated:** [January 21, 2025, 8:53am UTC](https://shapeworks.discourse.group/t/contour-based-particle-optimization-issues/311 "2025-01-21T08:53:48Z")

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Hello, I am currently trying to use ShapeWorksStudio to create an SSM from contours (of hand bones). I have been trying to optimise the parameters for a few days but to no avail. The problem I have is that the parti…

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## [Issue with Rough Meshes in Reconstructed Shapes when Adding Simpler Geometries in Larger Dataset](https://shapeworks.discourse.group/t/issue-with-rough-meshes-in-reconstructed-shapes-when-adding-simpler-geometries-in-larger-dataset/301)

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**Author:** [@Alexzeng](https://shapeworks.discourse.group/u/Alexzeng)\
**Replies:** 11\
**Last updated:** [January 6, 2025, 4:11pm UTC](https://shapeworks.discourse.group/t/issue-with-rough-meshes-in-reconstructed-shapes-when-adding-simpler-geometries-in-larger-dataset/301 "2025-01-06T16:11:57Z")

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Hi Shapeworks Community, I’m encountering an issue with rough meshes when reconstructing target shapes using mode coefficients. Previously, I used 7 first metacarpal models to generate the mean shape and mode shapes in …

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## [Creating An SSM for Aortic models](https://shapeworks.discourse.group/t/creating-an-ssm-for-aortic-models/303)

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**Author:** [@Humzz](https://shapeworks.discourse.group/u/Humzz)\
**Replies:** 5\
**Last updated:** [December 6, 2024, 10:32pm UTC](https://shapeworks.discourse.group/t/creating-an-ssm-for-aortic-models/303 "2024-12-06T22:32:03Z")

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Hello! I’m currently working on research that involves obtaining a conclusive ssm for Aortic models. To try to obtain as much information on my models as possible, I turned to ShapeWorks. Utilizing a small batch of 10 o…

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## [ICP alignment of mesh in python](https://shapeworks.discourse.group/t/icp-alignment-of-mesh-in-python/305)

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**Author:** [@Apoorva](https://shapeworks.discourse.group/u/Apoorva)\
**Replies:** 1\
**Last updated:** [December 6, 2024, 7:28pm UTC](https://shapeworks.discourse.group/t/icp-alignment-of-mesh-in-python/305 "2024-12-06T19:28:25Z")

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Hi, How to do ICP based alignment in the python code as we do in software shown below? An how to get rotation and translation matrix?

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