# Latest

**URL:** https://discourse.slicer.org/latest.md?page=54

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

**Page:** 55

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## [Use ANTsRegistration Extension 's QuickSyN get error](https://discourse.slicer.org/t/use-antsregistration-extension-s-quicksyn-get-error/43053)

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**Author:** [@zhaokaien](https://discourse.slicer.org/u/zhaokaien)\
**Replies:** 6\
**Last updated:** [June 2, 2025, 2:53am UTC](https://discourse.slicer.org/t/use-antsregistration-extension-s-quicksyn-get-error/43053 "2025-06-02T02:53:21Z")

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Hello, I’m trying to register two volumes using the AntsRegistration plugin. I’ve had no issues when using the Rigid and Affine+Rigid modes in ANTs. However, I consistently encounter an error when attempting to use Quic…

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## [How to make AI software to mapping cortical bone thickness](https://discourse.slicer.org/t/how-to-make-ai-software-to-mapping-cortical-bone-thickness/43183)

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**Author:** [@EsraaIsmail95](https://discourse.slicer.org/u/EsraaIsmail95)\
**Replies:** 1\
**Last updated:** [June 2, 2025, 12:54am UTC](https://discourse.slicer.org/t/how-to-make-ai-software-to-mapping-cortical-bone-thickness/43183 "2025-06-02T00:54:10Z")

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Hello, I am a dentist and new user in this amazing software I want to make a artificial intelligence for mapping of cortical bone thickness Actually it is my thesis and this will be my research work for my master degre…

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## [Exporting dicom images as one set](https://discourse.slicer.org/t/exporting-dicom-images-as-one-set/43180)

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**Author:** [@folkertvanheusden](https://discourse.slicer.org/u/folkertvanheusden)\
**Replies:** 3\
**Last updated:** [June 2, 2025, 12:40am UTC](https://discourse.slicer.org/t/exporting-dicom-images-as-one-set/43180 "2025-06-02T00:40:10Z")

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Hi, I would like to use Slicer as a tool to convert a dicom-set into a new decompressed set. I can succesfully load the set (study?) and export as dicom, but this gives 76 individual sets with each 1 dicom-image. How c…

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## [Nninteractive\_slicer\_server Does not start](https://discourse.slicer.org/t/nninteractive-slicer-server-does-not-start/43066)

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**Author:** [@eNable\_Polska](https://discourse.slicer.org/u/eNable_Polska)\
**Replies:** 2\
**Last updated:** [May 31, 2025, 2:55pm UTC](https://discourse.slicer.org/t/nninteractive-slicer-server-does-not-start/43066 "2025-05-31T14:55:40Z")

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I had been using nninteractive\_slicer\_server for segmentation for some time and everything worked fine. Unfortunately, since a few days the server stopped working. I am running ArchLinux, all packages and drivers are up…

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## [Guidance for improving first heart segmentation](https://discourse.slicer.org/t/guidance-for-improving-first-heart-segmentation/43093)

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**Author:** [@Sipan\_Hovsepian](https://discourse.slicer.org/u/Sipan_Hovsepian)\
**Replies:** 6\
**Last updated:** [May 31, 2025, 1:53pm UTC](https://discourse.slicer.org/t/guidance-for-improving-first-heart-segmentation/43093 "2025-05-31T13:53:01Z")

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Dear Community This is my first attempt of heart segmentation following the tutorial (Link), I found from this community. I would greatly appreciate any feedback for improvement. (maybe increasing the number of seed…

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## [Unexpected behavior in Transforms Module and IGT ResliceDriver](https://discourse.slicer.org/t/unexpected-behavior-in-transforms-module-and-igt-reslicedriver/42828)

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**Author:** [@sfrisken](https://discourse.slicer.org/u/sfrisken)\
**Replies:** 8\
**Last updated:** [May 30, 2025, 8:22pm UTC](https://discourse.slicer.org/t/unexpected-behavior-in-transforms-module-and-igt-reslicedriver/42828 "2025-05-30T20:22:02Z")

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When tracking two instruments using the Brainlab system and OpenIGTLink: OpenIGT link transfers transforms for both instruments from BrainLab to Slicer as expected As long as only one instrument is ever visible at a ti…

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## [Project Week 43 Prep Meeting (June 3rd)](https://discourse.slicer.org/t/project-week-43-prep-meeting-june-3rd/43170)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 0\
**Last updated:** [May 30, 2025, 5:23pm UTC](https://discourse.slicer.org/t/project-week-43-prep-meeting-june-3rd/43170 "2025-05-30T17:23:20Z")

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Dear Project Week community, The next project week preparation meeting will be next Tuesday, June 3rd, at 10:00 AM ET. If you are interested in discussing a possible project, please reply to this post with your topic. …

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## [4DCT dicom import and save](https://discourse.slicer.org/t/4dct-dicom-import-and-save/43135)

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**Author:** [@Amy\_Morton](https://discourse.slicer.org/u/Amy_Morton)\
**Replies:** 4\
**Last updated:** [May 30, 2025, 2:49pm UTC](https://discourse.slicer.org/t/4dct-dicom-import-and-save/43135 "2025-05-30T14:49:58Z")

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I found many helpful topics on the discourse, but still have yet to find a full soluiton: I have 100+ 4dct scans in dicom format, I’d like to import them and save as .nrrd or .seq.nrrd When loaded using the import dico…

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## [Segment tooth crown and root](https://discourse.slicer.org/t/segment-tooth-crown-and-root/43166)

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**Author:** [@Ayush](https://discourse.slicer.org/u/Ayush)\
**Replies:** 0\
**Last updated:** [May 30, 2025, 12:49pm UTC](https://discourse.slicer.org/t/segment-tooth-crown-and-root/43166 "2025-05-30T12:49:34Z")

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I have segmented a tooth from a full mouth cbct scan now I want to segment tooth in crown and root by 3d slicer. How can i do that automatically or manually?

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## [SlicerStable - extensions are not being built for Linux on cdash](https://discourse.slicer.org/t/slicerstable-extensions-are-not-being-built-for-linux-on-cdash/42896)

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**Author:** [@chir.set](https://discourse.slicer.org/u/chir.set)\
**Replies:** 6\
**Last updated:** [May 30, 2025, 12:40pm UTC](https://discourse.slicer.org/t/slicerstable-extensions-are-not-being-built-for-linux-on-cdash/42896 "2025-05-30T12:40:44Z")

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No extension is being built for Linux on cdash since a few weeks, there is simply no line for Linux. I just want to highlight it in case it went unnoticed. Or may be there are known reasons.

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## [Slicer 5.8.1 C++20 support](https://discourse.slicer.org/t/slicer-5-8-1-c-20-support/43097)

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**Author:** [@sogo](https://discourse.slicer.org/u/sogo)\
**Replies:** 4\
**Last updated:** [May 30, 2025, 3:25am UTC](https://discourse.slicer.org/t/slicer-5-8-1-c-20-support/43097 "2025-05-30T03:25:10Z")

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Build config Slicer Tag 5.8.1 OS = Windows 11 pro 24H2 Visual studio = 2019 v16.11.31, toolset v142 CMake 3.28.0-rc2 QT5 5.15.17 Hi, I am trying to build Slicer with variable “CMAKE\_CXX\_STANDARD” set to ‘20’ but …

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## [Sliding semi-landmarks](https://discourse.slicer.org/t/sliding-semi-landmarks/43101)

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**Author:** [@elg67](https://discourse.slicer.org/u/elg67)\
**Replies:** 4\
**Last updated:** [May 30, 2025, 1:24am UTC](https://discourse.slicer.org/t/sliding-semi-landmarks/43101 "2025-05-30T01:24:00Z")

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Hiya! I’m currently trying to apply sliding semi-landmarks to a dataset (x20 crania/scapulae/clavicles/pelvises) with fixed landmarks already applied. I tried to use the curves to create SSL between landmarks as per Rolf…

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## [MorphoCloud Instance Issue](https://discourse.slicer.org/t/morphocloud-instance-issue/42645)

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**Author:** [@Ellie\_In](https://discourse.slicer.org/u/Ellie_In)\
**Replies:** 3\
**Last updated:** [May 29, 2025, 7:38pm UTC](https://discourse.slicer.org/t/morphocloud-instance-issue/42645 "2025-05-29T19:38:30Z")

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I was wondering if anyone had any experience with MorphoCloud instances and could help me figure out what is going wrong. When I try to unshelve my instance, I get an error that says “failed to associate floating IP w…

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## [How to display video in PythonQt?](https://discourse.slicer.org/t/how-to-display-video-in-pythonqt/17564)

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**Author:** [@Chintha\_Siva\_Prasad](https://discourse.slicer.org/u/Chintha_Siva_Prasad)\
**Replies:** 2\
**Last updated:** [May 29, 2025, 9:25am UTC](https://discourse.slicer.org/t/how-to-display-video-in-pythonqt/17564 "2025-05-29T09:25:34Z")

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How can I display a video in Slicer through PythonQt?

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## [Built-in Resampling Solution for Curved Planar Reformat](https://discourse.slicer.org/t/built-in-resampling-solution-for-curved-planar-reformat/43137)

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**Author:** [@MarkLiu](https://discourse.slicer.org/u/MarkLiu)\
**Replies:** 0\
**Last updated:** [May 28, 2025, 2:01pm UTC](https://discourse.slicer.org/t/built-in-resampling-solution-for-curved-planar-reformat/43137 "2025-05-28T14:01:53Z")

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Dear Community, I’m currently using the curved planar reformat to re-sample the CT images. And it normally takes about 10 seconds to finish the execution, which is a little bit long to my application. I briefly checked …

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## [3d Slicer in Ubuntu 16.04](https://discourse.slicer.org/t/3d-slicer-in-ubuntu-16-04/11284)

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**Author:** [@CHRIS\_HUYNH](https://discourse.slicer.org/u/CHRIS_HUYNH)\
**Replies:** 6\
**Last updated:** [May 28, 2025, 12:31pm UTC](https://discourse.slicer.org/t/3d-slicer-in-ubuntu-16-04/11284 "2025-05-28T12:31:34Z")

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Hi, I’m trying to run 3D Slicer in ubuntu 16.04. I’ve downloaded the Linux version of slicer, opened the tar.gz file and copied over the containing folder to a different location. I’m trying to run the command ./Slice…

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## [Is there any video related function? If there is no solution,how to do it](https://discourse.slicer.org/t/is-there-any-video-related-function-if-there-is-no-solution-how-to-do-it/43131)

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**Author:** [@lhefeng662](https://discourse.slicer.org/u/lhefeng662)\
**Replies:** 0\
**Last updated:** [May 28, 2025, 10:23am UTC](https://discourse.slicer.org/t/is-there-any-video-related-function-if-there-is-no-solution-how-to-do-it/43131 "2025-05-28T10:23:02Z")

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Is there any video related function? If there is no solution, you can import the video signal or local video file into the software, overlay the 3D model with the video for display, and choose to hide the video; Fusion d…

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## [Example data for Film Dosimetry Analysis](https://discourse.slicer.org/t/example-data-for-film-dosimetry-analysis/21787)

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**Author:** [@johenn66](https://discourse.slicer.org/u/johenn66)\
**Replies:** 5\
**Last updated:** [May 28, 2025, 10:01am UTC](https://discourse.slicer.org/t/example-data-for-film-dosimetry-analysis/21787 "2025-05-28T10:01:03Z")

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I am trying to locate a downloadable example dataset for the “Film Dosimetry Analysis” workflow. Can someone direct me to a downloadable dataset?

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## [Do we have this feature for watershed topographic maps, or how can we implement it](https://discourse.slicer.org/t/do-we-have-this-feature-for-watershed-topographic-maps-or-how-can-we-implement-it/42653)

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**Author:** [@lhefeng662](https://discourse.slicer.org/u/lhefeng662)\
**Replies:** 5\
**Last updated:** [May 28, 2025, 9:39am UTC](https://discourse.slicer.org/t/do-we-have-this-feature-for-watershed-topographic-maps-or-how-can-we-implement-it/42653 "2025-05-28T09:39:12Z")

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Watershed Topographic Map 2.0 simulates the true boundaries of pulmonary vascular basins using artificial intelligence algorithms based on personalized lung anatomical variation patterns. Principle of watershed topograph…

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## [How can I use GPU to accelerate General Registration (Elastix) module?](https://discourse.slicer.org/t/how-can-i-use-gpu-to-accelerate-general-registration-elastix-module/43129)

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**Author:** [@LanceDuan](https://discourse.slicer.org/u/LanceDuan)\
**Replies:** 1\
**Last updated:** [May 28, 2025, 8:17am UTC](https://discourse.slicer.org/t/how-can-i-use-gpu-to-accelerate-general-registration-elastix-module/43129 "2025-05-28T08:17:38Z")

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Hi all, I’m using General Registration (Elastix) to align two different time DICOM CT of one patient, and it works very well! However it takes such a long time, about 5min. I checked the CPU and GPU usage status. As yo…

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## [How to convert series (IM files) to one file](https://discourse.slicer.org/t/how-to-convert-series-im-files-to-one-file/41269)

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**Author:** [@amirzadeh](https://discourse.slicer.org/u/amirzadeh)\
**Replies:** 1\
**Last updated:** [May 28, 2025, 3:02am UTC](https://discourse.slicer.org/t/how-to-convert-series-im-files-to-one-file/41269 "2025-05-28T03:02:14Z")

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Hi. My MRI and CT-Angio images are in a PATH that includes many series folders with IM files that don’t have any extensions. When I add the PATH to 3d slicer it load the images in different series like the images that I’…

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## [Leg CT Scan Data set?](https://discourse.slicer.org/t/leg-ct-scan-data-set/43125)

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**Author:** [@Aneel\_Kumar\_Maheshwa](https://discourse.slicer.org/u/Aneel_Kumar_Maheshwa)\
**Replies:** 3\
**Last updated:** [May 28, 2025, 2:36am UTC](https://discourse.slicer.org/t/leg-ct-scan-data-set/43125 "2025-05-28T02:36:03Z")

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Can anyone help me obtain the Leg CT Scan dataset or the lower limb CT Scan dataset? Are there any links or databases I can download?

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## [SlicerRadiomics Extension Not Showing Up on macOS 15.5 (Slicer 5.9.0 Preview)](https://discourse.slicer.org/t/slicerradiomics-extension-not-showing-up-on-macos-15-5-slicer-5-9-0-preview/43123)

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**Author:** [@Raghad](https://discourse.slicer.org/u/Raghad)\
**Replies:** 1\
**Last updated:** [May 27, 2025, 10:32pm UTC](https://discourse.slicer.org/t/slicerradiomics-extension-not-showing-up-on-macos-15-5-slicer-5-9-0-preview/43123 "2025-05-27T22:32:31Z")

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Hi, I’m trying to install and use the SlicerRadiomics extension on my Mac, but I haven’t been able to get it to show up, despite following all the instructions. System Info: macOS version: 15.5 (Sequoia) Slicer versi…

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## [Guidance on ADC Value Extraction and Rescaling Factor](https://discourse.slicer.org/t/guidance-on-adc-value-extraction-and-rescaling-factor/43124)

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**Author:** [@nima\_Taghizadeh](https://discourse.slicer.org/u/nima_Taghizadeh)\
**Replies:** 0\
**Last updated:** [May 27, 2025, 10:26pm UTC](https://discourse.slicer.org/t/guidance-on-adc-value-extraction-and-rescaling-factor/43124 "2025-05-27T22:26:14Z")

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Hello everyone, I am currently working with ADC values extracted from inhomogeneity bias-corrected brain MRIs obtained through SAMSEG and have encountered a few issues that I would greatly appreciate your insights on. …

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## [Discuss Meeting Topics for Project Week 43 Prep Meetings Here!](https://discourse.slicer.org/t/discuss-meeting-topics-for-project-week-43-prep-meetings-here/43120)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 2\
**Last updated:** [May 27, 2025, 8:52pm UTC](https://discourse.slicer.org/t/discuss-meeting-topics-for-project-week-43-prep-meetings-here/43120 "2025-05-27T20:52:08Z")

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We are looking to set topics for the next few meetings, if there is a major topic you would like to have discussed in a meeting (IGT, DICOM, etc), please reply to request!

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## [Issue Applying Wrap Solidify in Python Script](https://discourse.slicer.org/t/issue-applying-wrap-solidify-in-python-script/41742)

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**Author:** [@Miri\_Trope](https://discourse.slicer.org/u/Miri_Trope)\
**Replies:** 1\
**Last updated:** [May 27, 2025, 12:41pm UTC](https://discourse.slicer.org/t/issue-applying-wrap-solidify-in-python-script/41742 "2025-05-27T12:41:07Z")

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Dear community, I’m trying to apply Wrap Solidify in a Python script following the instructions provided here. I’ve attached the code: Create a segmentation node segmentationNode = slicer.mrmlScene.AddNewNodeByClass(“…

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## [AddNewNodeByClass: basename does not increment](https://discourse.slicer.org/t/addnewnodebyclass-basename-does-not-increment/34386)

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**Author:** [@chir.set](https://discourse.slicer.org/u/chir.set)\
**Replies:** 3\
**Last updated:** [May 27, 2025, 11:52am UTC](https://discourse.slicer.org/t/addnewnodebyclass-basename-does-not-increment/34386 "2025-05-27T11:52:01Z")

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Hi, From my understanding, AddNewNodeByClass accepts a basename that would increment with a suffix on repeat calls. For example: slicer.mrmlScene.AddNewNodeByClass("vtkMRMLModelNode", "M") should yield model nodes wit…

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## [Workshop on 3D Slicer and SOFA](https://discourse.slicer.org/t/workshop-on-3d-slicer-and-sofa/43114)

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**Author:** [@AliciaPose](https://discourse.slicer.org/u/AliciaPose)\
**Replies:** 0\
**Last updated:** [May 27, 2025, 9:16am UTC](https://discourse.slicer.org/t/workshop-on-3d-slicer-and-sofa/43114 "2025-05-27T09:16:26Z")

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Interested in medical imaging, biomechanical simulation, and immersive technologies in healthcare? The IGT group at Universidad Carlos III de Madrid is organizing a three-day intensive workshop on 3D Slicer and the SOF…

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## [Configuring the running environment for an extension build-tree](https://discourse.slicer.org/t/configuring-the-running-environment-for-an-extension-build-tree/43103)

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**Author:** [@RafaelPalomar](https://discourse.slicer.org/u/RafaelPalomar)\
**Replies:** 1\
**Last updated:** [May 26, 2025, 8:02pm UTC](https://discourse.slicer.org/t/configuring-the-running-environment-for-an-extension-build-tree/43103 "2025-05-26T20:02:19Z")

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Hello. Is there any reason for the following code not taking effect when added to a External\_something.cmake file in a superbuild extension? set(${proj}\_ENVVARS\_LAUNCHER\_BUILD "VAR1=${VAR1}" "VAR2=anything" …

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## [For creating extensions using extension index repo](https://discourse.slicer.org/t/for-creating-extensions-using-extension-index-repo/43109)

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**Author:** [@Pranav\_Rai](https://discourse.slicer.org/u/Pranav_Rai)\
**Replies:** 0\
**Last updated:** [May 26, 2025, 7:54pm UTC](https://discourse.slicer.org/t/for-creating-extensions-using-extension-index-repo/43109 "2025-05-26T19:54:39Z")

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I am trying to create extensions for my custom slicer application by running the command given in the docs. Still, after running it and setting everything in place, the final folder comes empty every time, and the soluti…

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