# Community

**URL:** https://discourse.slicer.org/c/community/12.md?no_subcategories=false&page=30

[Latest](https://discourse.slicer.org/latest.md) · [Categories](https://discourse.slicer.org/categories.md) · [Tags](https://discourse.slicer.org/tags.md)

**Page:** 31

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## [How to use VMTKLab CFD model in my project?](https://discourse.slicer.org/t/how-to-use-vmtklab-cfd-model-in-my-project/18848)

<div class="topic-metadata">

**Author:** [@junqiangchen](https://discourse.slicer.org/u/junqiangchen)\
**Replies:** 6\
**Last updated:** [July 28, 2021, 7:01pm UTC](https://discourse.slicer.org/t/how-to-use-vmtklab-cfd-model-in-my-project/18848 "2021-07-28T19:01:11Z")

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hi,i want simulation CFD in my project,i find the VMTKLab is suitable,but i don’t know how to use it just like vmtk library?

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## [2021.07.28 Weekly Meeting](https://discourse.slicer.org/t/2021-07-28-weekly-meeting/18930)

<div class="topic-metadata">

**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 2\
**Last updated:** [July 27, 2021, 3:50pm UTC](https://discourse.slicer.org/t/2021-07-28-weekly-meeting/18930 "2021-07-27T15:50:06Z")

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Tomorrow, we will be having our next weekly hangout at 10:00 AM ET until 11 AM ET. Anyone is welcome to join to ask questions at https://bit.ly/slicer-googlemeet-hosted-by-kitware Agenda: Slicer 5 / Extension manage…

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## [vmtkMeshGenerator error](https://discourse.slicer.org/t/vmtkmeshgenerator-error/18889)

<div class="topic-metadata">

**Author:** [@junqiangchen](https://discourse.slicer.org/u/junqiangchen)\
**Replies:** 2\
**Last updated:** [July 27, 2021, 9:18am UTC](https://discourse.slicer.org/t/vmtkmeshgenerator-error/18889 "2021-07-27T09:18:08Z")

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hi,i use vmtkMeshGenerator to get volume meshing,follow this example:http://www.vmtk.org/tutorials/MeshGeneration.html,but i get the error that is TetGen command line options: pq1.414000q10.000000q165.000000YsT1.000000e-…

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## [Conda install not working due to incompatibilities](https://discourse.slicer.org/t/conda-install-not-working-due-to-incompatibilities/18865)

<div class="topic-metadata">

**Author:** [@perecanals](https://discourse.slicer.org/u/perecanals)\
**Replies:** 2\
**Last updated:** [July 22, 2021, 9:51am UTC](https://discourse.slicer.org/t/conda-install-not-working-due-to-incompatibilities/18865 "2021-07-22T09:51:42Z")

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Hi, OS: Linux (Ubuntu 20.04.2) I was trying to install VMTK via conda in an already created environment (Python 3.7.10) and I get the following error: Found conflicts! Looking for incompatible packages. This can take …

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## [How to calculate surface length with centerline project into surface](https://discourse.slicer.org/t/how-to-calculate-surface-length-with-centerline-project-into-surface/18747)

<div class="topic-metadata">

**Author:** [@junqiangchen](https://discourse.slicer.org/u/junqiangchen)\
**Replies:** 8\
**Last updated:** [July 21, 2021, 11:51am UTC](https://discourse.slicer.org/t/how-to-calculate-surface-length-with-centerline-project-into-surface/18747 "2021-07-21T11:51:18Z")

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hi,i have centerline and centerlinesection,i want to calculate surfce line length,like this,green line is centerline and blue line is surface line,how to get this blue line?

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## [2021.07.20 Weekly Meeting](https://discourse.slicer.org/t/2021-07-20-weekly-meeting/18805)

<div class="topic-metadata">

**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 2\
**Last updated:** [July 20, 2021, 1:51am UTC](https://discourse.slicer.org/t/2021-07-20-weekly-meeting/18805 "2021-07-20T01:51:32Z")

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Tomorrow, we will be having our next weekly hangout at 10:00 AM ET until 11 AM ET. Anyone is welcome to join to ask questions at https://bit.ly/slicer-googlemeet-hosted-by-kitware Agenda: Slicer 5 / Extension manage…

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## [Help installing SlicerVMTK Extension](https://discourse.slicer.org/t/help-installing-slicervmtk-extension/17711)

<div class="topic-metadata">

**Author:** [@KyleVanBeek](https://discourse.slicer.org/u/KyleVanBeek)\
**Replies:** 2\
**Last updated:** [July 18, 2021, 3:06am UTC](https://discourse.slicer.org/t/help-installing-slicervmtk-extension/17711 "2021-07-18T03:06:54Z")

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Hello, I am looking for a straightforward tutorial for downloading the SlicerVMTK extension as I do not have a computer science background. All tutorials found online involve the usage of python and while it may be a s…

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## [Slicer Dicom to NRRD](https://discourse.slicer.org/t/slicer-dicom-to-nrrd/18629)

<div class="topic-metadata">

**Author:** [@SyedaFatima123](https://discourse.slicer.org/u/SyedaFatima123)\
**Replies:** 12\
**Last updated:** [July 15, 2021, 3:25pm UTC](https://discourse.slicer.org/t/slicer-dicom-to-nrrd/18629 "2021-07-15T15:25:30Z")

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Hello I need urgent help . I have a dataset of caner patients, every patient with an ID has a folder with 28 dcm MRI images . I am using slicer to convert it to NRRD format but I want to ask is there any way I can conver…

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## [How to avoid the holes caused by branch splitting, or repair it](https://discourse.slicer.org/t/how-to-avoid-the-holes-caused-by-branch-splitting-or-repair-it/18582)

<div class="topic-metadata">

**Author:** [@JunjieWu](https://discourse.slicer.org/u/JunjieWu)\
**Replies:** 5\
**Last updated:** [July 15, 2021, 2:57am UTC](https://discourse.slicer.org/t/how-to-avoid-the-holes-caused-by-branch-splitting-or-repair-it/18582 "2021-07-15T02:57:27Z")

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I have something trouble in branch splitting of vascular bifurcation. Holes are created at the junction of the dividing lines, and i can’t use vmtksurfacecapper to fix it. How can i avoid it, or repair it ? vmtkbranchcl…

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## [2021.07.06 Hangout](https://discourse.slicer.org/t/2021-07-06-hangout/18524)

<div class="topic-metadata">

**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 4\
**Last updated:** [July 12, 2021, 5:44pm UTC](https://discourse.slicer.org/t/2021-07-06-hangout/18524 "2021-07-12T17:44:18Z")

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Tomorrow, we will be having our next weekly hangout at 10:00 AM ET until 11 AM ET. Anyone is welcome to join to ask questions at https://bit.ly/slicer-googlemeet-hosted-by-kitware Agenda: Extension manager Slicer 5 …

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## [how to generate multiple mesh files with different time steps](https://discourse.slicer.org/t/how-to-generate-multiple-mesh-files-with-different-time-steps/18596)

<div class="topic-metadata">

**Author:** [@junqiangchen](https://discourse.slicer.org/u/junqiangchen)\
**Replies:** 3\
**Last updated:** [July 12, 2021, 1:32am UTC](https://discourse.slicer.org/t/how-to-generate-multiple-mesh-files-with-different-time-steps/18596 "2021-07-12T01:32:58Z")

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Hi, than you for sharing the PARTICLE TRACING example with vmtk,i have problem that how to generate different timestep meshs,can anyone share some example code or tools how to use it generate different timestep meshes? …

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## [Normalize Pyradiomics features by the number of pixels (Volume)](https://discourse.slicer.org/t/normalize-pyradiomics-features-by-the-number-of-pixels-volume/18617)

<div class="topic-metadata">

**Author:** [@MachadoL](https://discourse.slicer.org/u/MachadoL)\
**Replies:** 0\
**Last updated:** [July 10, 2021, 2:17pm UTC](https://discourse.slicer.org/t/normalize-pyradiomics-features-by-the-number-of-pixels-volume/18617 "2021-07-10T14:17:06Z")

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Hey guys, I am extracting radiomics from several different volume ROIS. I am afraid the ROI volume affects my evaluation, since many radiomic features are not divided by the number of pixels. I did even read an article …

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## [Shape Population Viewer](https://discourse.slicer.org/t/shape-population-viewer/13593)

<div class="topic-metadata">

**Author:** [@Madelene\_Habib](https://discourse.slicer.org/u/Madelene_Habib)\
**Replies:** 3\
**Last updated:** [July 9, 2021, 5:22am UTC](https://discourse.slicer.org/t/shape-population-viewer/13593 "2021-07-09T05:22:12Z")

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Operating system: Windows 10 Slicer version: 4.10.2 I’m trying to use the ‘shape population view’ module, when I installed and restarted 3Dslicer it does not show up when i search for the module. I tried reinstalling 3…

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## [Feature discussion: Deep learning module in SlicerSALT](https://discourse.slicer.org/t/feature-discussion-deep-learning-module-in-slicersalt/7731)

<div class="topic-metadata">

**Author:** [@styner](https://discourse.slicer.org/u/styner)\
**Replies:** 3\
**Last updated:** [July 8, 2021, 3:25pm UTC](https://discourse.slicer.org/t/feature-discussion-deep-learning-module-in-slicersalt/7731 "2021-07-08T15:25:56Z")

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This is a discussion page for a new feature in SlicerSALT under development. Goal: Add a module to SlicerSALT allowing for deep learning classification support. Features: python module use of keras for deep learning n…

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## [Method Requires VTK Object Error](https://discourse.slicer.org/t/method-requires-vtk-object-error/18386)

<div class="topic-metadata">

**Author:** [@Bastien\_Saunois](https://discourse.slicer.org/u/Bastien_Saunois)\
**Replies:** 3\
**Last updated:** [July 8, 2021, 10:18am UTC](https://discourse.slicer.org/t/method-requires-vtk-object-error/18386 "2021-07-08T10:18:52Z")

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I am implementing the extract Network algorithm, but I get an issue with this line : networkExtraction.SetInputData(surfacePolyData) I get this error : method requires a VTK object I saw on some forums that it could …

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## [Project Week Results Presentations Starting Shortly (10am ET on Friday July 2nd)](https://discourse.slicer.org/t/project-week-results-presentations-starting-shortly-10am-et-on-friday-july-2nd/18483)

<div class="topic-metadata">

**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 0\
**Last updated:** [July 2, 2021, 1:57pm UTC](https://discourse.slicer.org/t/project-week-results-presentations-starting-shortly-10am-et-on-friday-july-2nd/18483 "2021-07-02T13:57:43Z")

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Hello Everyone, Project Results presentations will be happening on zoom at 10am ET (about 15 minutes from now): What a terrific in-computer (not in-person) Project Week 35 with 139 participants and actual project work! …

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## [SPHARM-PDM surface point parameter extraction](https://discourse.slicer.org/t/spharm-pdm-surface-point-parameter-extraction/18472)

<div class="topic-metadata">

**Author:** [@Ian\_Harding](https://discourse.slicer.org/u/Ian_Harding)\
**Replies:** 0\
**Last updated:** [July 2, 2021, 3:18am UTC](https://discourse.slicer.org/t/spharm-pdm-surface-point-parameter-extraction/18472 "2021-07-02T03:18:56Z")

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After running group-level statistical models on the SPHARM surfaces, and generating 3D illustrations of areas that are significantly related to our independent variable of interest, I am curious whether it is possible to…

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## [Import issue of vmtk libraries](https://discourse.slicer.org/t/import-issue-of-vmtk-libraries/18321)

<div class="topic-metadata">

**Author:** [@Bastien\_Saunois](https://discourse.slicer.org/u/Bastien_Saunois)\
**Replies:** 5\
**Last updated:** [June 28, 2021, 8:45am UTC](https://discourse.slicer.org/t/import-issue-of-vmtk-libraries/18321 "2021-06-28T08:45:54Z")

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I am trying to re-use the ExtractCenterline.py code. In the script there are 2 imports that interest me : import vtkvmtkComputationalGeometryPython as vtkvmtkComputationalGeometry import vtkvmtkMiscPyt…

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## [Project Week 35 starting on Monday - how to navigate the week](https://discourse.slicer.org/t/project-week-35-starting-on-monday-how-to-navigate-the-week/18339)

<div class="topic-metadata">

**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 0\
**Last updated:** [June 25, 2021, 12:54pm UTC](https://discourse.slicer.org/t/project-week-35-starting-on-monday-how-to-navigate-the-week/18339 "2021-06-25T12:54:51Z")

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Dear members of the Project Week community, We are just a couple of days away from Project Week 35, the first virtual edition of Project Week to include team work on projects. The response of the community has been fant…

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## [How to change Feature Filters in 3D Slicer?](https://discourse.slicer.org/t/how-to-change-feature-filters-in-3d-slicer/18281)

<div class="topic-metadata">

**Author:** [@Mostafa2020](https://discourse.slicer.org/u/Mostafa2020)\
**Replies:** 0\
**Last updated:** [June 22, 2021, 7:20pm UTC](https://discourse.slicer.org/t/how-to-change-feature-filters-in-3d-slicer/18281 "2021-06-22T19:20:01Z")

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Hi all, Is there any way to change Feature Filters in 3D Slicer for the Radiomics module? Is “Wavelet-based features” the only option, or can we also consider other filter classes like square, square root, etc.? Thanks…

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## [2021.06.22 Hangout - 11 AM ET after Project Week Meeting](https://discourse.slicer.org/t/2021-06-22-hangout-11-am-et-after-project-week-meeting/18258)

<div class="topic-metadata">

**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 0\
**Last updated:** [June 21, 2021, 9:44pm UTC](https://discourse.slicer.org/t/2021-06-22-hangout-11-am-et-after-project-week-meeting/18258 "2021-06-21T21:44:55Z")

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Tomorrow, we will be having our next weekly hangout at 11:00 AM ET, after the Project Week meeting . We will be remaining on the Project Week Zoom call for the hangout. Anyone is welcome to join to ask questions! Agend…

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## [Reminder: Project Week prep meeting tomorrow - June 22 2021](https://discourse.slicer.org/t/reminder-project-week-prep-meeting-tomorrow-june-22-2021/18257)

<div class="topic-metadata">

**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 0\
**Last updated:** [June 21, 2021, 9:43pm UTC](https://discourse.slicer.org/t/reminder-project-week-prep-meeting-tomorrow-june-22-2021/18257 "2021-06-21T21:43:20Z")

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Dear members of the Project Week community, Please join us for our last Project Week 35 preparation meeting tomorrow June 22 (10 am Boston time, EDT) on Zoom. For our last preparation meeting, we will hear from project…

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## [ALPACA algorithm, and projection difficulties](https://discourse.slicer.org/t/alpaca-algorithm-and-projection-difficulties/18231)

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**Author:** [@Alex\_Tinius](https://discourse.slicer.org/u/Alex_Tinius)\
**Replies:** 6\
**Last updated:** [June 20, 2021, 7:58pm UTC](https://discourse.slicer.org/t/alpaca-algorithm-and-projection-difficulties/18231 "2021-06-20T19:58:19Z")

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I would like to use the semi-automated landmarking approach ALPACA to auto-landmark clavicles. However, I seem to be unable to find suitable parameters for the auto-landmarking process, and I was hoping you could point …

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## [Similarity of feature classes between 3D Slicer and PyRadiomics](https://discourse.slicer.org/t/similarity-of-feature-classes-between-3d-slicer-and-pyradiomics/18232)

<div class="topic-metadata">

**Author:** [@Mostafa2020](https://discourse.slicer.org/u/Mostafa2020)\
**Replies:** 0\
**Last updated:** [June 20, 2021, 4:17am UTC](https://discourse.slicer.org/t/similarity-of-feature-classes-between-3d-slicer-and-pyradiomics/18232 "2021-06-20T04:17:11Z")

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Hi all, I am trying to extract features from a medical image; I wondered if a more expanded library of functions for feature classes is available and usable with Pyradiomics that is not available in 3D Slicer. Thanks.

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## [Where is the code for computation of centerline?](https://discourse.slicer.org/t/where-is-the-code-for-computation-of-centerline/18183)

<div class="topic-metadata">

**Author:** [@Bastien\_Saunois](https://discourse.slicer.org/u/Bastien_Saunois)\
**Replies:** 4\
**Last updated:** [June 18, 2021, 8:19am UTC](https://discourse.slicer.org/t/where-is-the-code-for-computation-of-centerline/18183 "2021-06-18T08:19:11Z")

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Hi, I am trying to use VMTK to compute the centerline of a hollowed cylinder with Python. But I can’t find the code responsible of computing the centerline. Could someone guide me to this certain code? I would appreci…

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## [All radiomic features show blank after renaming a segmentation](https://discourse.slicer.org/t/all-radiomic-features-show-blank-after-renaming-a-segmentation/17652)

<div class="topic-metadata">

**Author:** [@xackey](https://discourse.slicer.org/u/xackey)\
**Replies:** 2\
**Last updated:** [June 16, 2021, 3:28am UTC](https://discourse.slicer.org/t/all-radiomic-features-show-blank-after-renaming-a-segmentation/17652 "2021-06-16T03:28:12Z")

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In slicer radiomics, I find an issue below. Step 1. Make a segmentation by segmentation editor. Step 2. If change name of the segmentation, all radiomic features show blank and cannot be calculated (there is no problem…

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## [2021.06.15 Hangout - 11 AM ET after Project Week Meeting](https://discourse.slicer.org/t/2021-06-15-hangout-11-am-et-after-project-week-meeting/18120)

<div class="topic-metadata">

**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 0\
**Last updated:** [June 14, 2021, 6:10pm UTC](https://discourse.slicer.org/t/2021-06-15-hangout-11-am-et-after-project-week-meeting/18120 "2021-06-14T18:10:39Z")

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Tomorrow, we will be having our next weekly hangout at 11:00 AM ET, after the Project Week meeting . We will be remaining on the Project Week Zoom call for the hangout. Anyone is welcome to join to ask questions! Agend…

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## [Reminder: Project Week prep meeting tomorrow - June 15 2021](https://discourse.slicer.org/t/reminder-project-week-prep-meeting-tomorrow-june-15-2021/18119)

<div class="topic-metadata">

**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 0\
**Last updated:** [June 14, 2021, 6:09pm UTC](https://discourse.slicer.org/t/reminder-project-week-prep-meeting-tomorrow-june-15-2021/18119 "2021-06-14T18:09:19Z")

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Dear members of the Project Week community, Please join us for our second Project Week 35 preparation meeting tomorrow June 15 (10 am Boston time, EDT) on Zoom. This week, we’ll continue de discussion on image-guided t…

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## [My deep learning module is not available](https://discourse.slicer.org/t/my-deep-learning-module-is-not-available/16785)

<div class="topic-metadata">

**Author:** [@slicer365](https://discourse.slicer.org/u/slicer365)\
**Replies:** 3\
**Last updated:** [June 14, 2021, 1:11pm UTC](https://discourse.slicer.org/t/my-deep-learning-module-is-not-available/16785 "2021-06-14T13:11:04Z")

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win 64 slicer version 4.11 2021.0226

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## [Public database of 3D segmented vessels](https://discourse.slicer.org/t/public-database-of-3d-segmented-vessels/18110)

<div class="topic-metadata">

**Author:** [@phcerdan](https://discourse.slicer.org/u/phcerdan)\
**Replies:** 0\
**Last updated:** [June 14, 2021, 9:26am UTC](https://discourse.slicer.org/t/public-database-of-3d-segmented-vessels/18110 "2021-06-14T09:26:18Z")

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Do you know the existence of any accesible database annotated with segmented vessels in 3D? I know there are a lot of private databases with vessel segmentation for AI, but wondering if there is any public initiative. I…

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