# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=222

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

**Page:** 223

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## [Quick question about non conventional coordinate system](https://discourse.slicer.org/t/quick-question-about-non-conventional-coordinate-system/23598)

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**Author:** [@scarpma](https://discourse.slicer.org/u/scarpma)\
**Replies:** 4\
**Last updated:** [May 27, 2022, 2:49pm UTC](https://discourse.slicer.org/t/quick-question-about-non-conventional-coordinate-system/23598 "2022-05-27T14:49:33Z")

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Hello, I have a quick question: is it possible that a nifti with an affine matrix of this kind \[ \[1,0,0,0\], \[0,0,1,0\], \[0,1,0,0\], \[0,0,0,1\] \] is not correctly read by 3dslicer ? This kind of matrix corresponds t…

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## [Elastix License Information](https://discourse.slicer.org/t/elastix-license-information/23597)

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**Author:** [@nicdubovic](https://discourse.slicer.org/u/nicdubovic)\
**Replies:** 2\
**Last updated:** [May 27, 2022, 5:03am UTC](https://discourse.slicer.org/t/elastix-license-information/23597 "2022-05-27T05:03:58Z")

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I’m interested in edits for internal use without distribution, closed source

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## [Why when adding point using Pick'n paint module it add too many points?](https://discourse.slicer.org/t/why-when-adding-point-using-pickn-paint-module-it-add-too-many-points/23516)

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**Author:** [@Moh\_d\_Al-Watary](https://discourse.slicer.org/u/Moh_d_Al-Watary)\
**Replies:** 2\
**Last updated:** [May 26, 2022, 7:03am UTC](https://discourse.slicer.org/t/why-when-adding-point-using-pickn-paint-module-it-add-too-many-points/23516 "2022-05-26T07:03:42Z")

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Operating system:Windows 10 Education Slicer version:4.13.0-2022-02-02 Expected behavior: when adding a point using Pick’n paint module, it will add only one point in the specific area. Actual behavior: automatically …

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## [Slicer quit when using vtkStatisticalOutlierRemoval](https://discourse.slicer.org/t/slicer-quit-when-using-vtkstatisticaloutlierremoval/23381)

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**Author:** [@efu98](https://discourse.slicer.org/u/efu98)\
**Replies:** 4\
**Last updated:** [May 25, 2022, 10:20pm UTC](https://discourse.slicer.org/t/slicer-quit-when-using-vtkstatisticaloutlierremoval/23381 "2022-05-25T22:20:57Z")

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Hello! I am trying to extract enclosed points of a point cloud inside a polydata using VTK. Extracting the points (with vtkExtractEnclosedPoints) seems to work. However, there are outlier points that aren’t inside the …

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## [Point list performance is very slow with large point list](https://discourse.slicer.org/t/point-list-performance-is-very-slow-with-large-point-list/23591)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 4\
**Last updated:** [May 25, 2022, 8:56pm UTC](https://discourse.slicer.org/t/point-list-performance-is-very-slow-with-large-point-list/23591 "2022-05-25T20:56:19Z")

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I am having quite a bit of slowdown with large number of points (500+)? Interactions are very slow, selection and any operations such as our MarkupsEditor, brings Slicer to almost stop. This is with the latest stable, bo…

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## [Error with export segmentation to DICOM](https://discourse.slicer.org/t/error-with-export-segmentation-to-dicom/23589)

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**Author:** [@melvlad27](https://discourse.slicer.org/u/melvlad27)\
**Replies:** 1\
**Last updated:** [May 25, 2022, 4:49pm UTC](https://discourse.slicer.org/t/error-with-export-segmentation-to-dicom/23589 "2022-05-25T16:49:35Z")

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When I want to export my segmentation, I see this message in my log. Traceback (most recent call last): File "C:/Users/AppData/Local/NA-MIC/Slicer 5.0.2/NA-MIC/Extensions-30822/QuantitativeReporting/lib/Slicer-5.0/qt-…

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## [Completed with errors ](https://discourse.slicer.org/t/completed-with-errors/23580)

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**Author:** [@maria\_2000](https://discourse.slicer.org/u/maria_2000)\
**Replies:** 2\
**Last updated:** [May 25, 2022, 8:59am UTC](https://discourse.slicer.org/t/completed-with-errors/23580 "2022-05-25T08:59:02Z")

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Hi.When I use the Matlab Module Generator I’m facing with these errors. How can I solve these errors? ERROR: Unable to find Matlab executable defined in the SLICER\_MATLAB\_EXECUTABLE\_PATH environment variable: 0 ERROR: …

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## [Old version of 3d Slicer](https://discourse.slicer.org/t/old-version-of-3d-slicer/23571)

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**Author:** [@melvlad27](https://discourse.slicer.org/u/melvlad27)\
**Replies:** 1\
**Last updated:** [May 24, 2022, 7:31pm UTC](https://discourse.slicer.org/t/old-version-of-3d-slicer/23571 "2022-05-24T19:31:43Z")

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Where can I download this version of 3D Slicer 4.11.20210226 r29738 / 7a593c8. Downloaded May 2022?

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## [What is the best way to draw a triangle shape with Python](https://discourse.slicer.org/t/what-is-the-best-way-to-draw-a-triangle-shape-with-python/23572)

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**Author:** [@minhtan16](https://discourse.slicer.org/u/minhtan16)\
**Replies:** 1\
**Last updated:** [May 24, 2022, 7:31pm UTC](https://discourse.slicer.org/t/what-is-the-best-way-to-draw-a-triangle-shape-with-python/23572 "2022-05-24T19:31:34Z")

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Hi everyone, I’m new to 3D Slicer and I was wondering what would be the best way for me to draw a triangle on a 2D and 3D view using python. Considering I have a specific coordinates, I could process it into 3 points (t…

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## [Can Slicer be linked to a moedeling software (ie : openscad, freecad...) and how?](https://discourse.slicer.org/t/can-slicer-be-linked-to-a-moedeling-software-ie-openscad-freecad-and-how/23570)

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**Author:** [@L0RD](https://discourse.slicer.org/u/L0RD)\
**Replies:** 0\
**Last updated:** [May 24, 2022, 7:10pm UTC](https://discourse.slicer.org/t/can-slicer-be-linked-to-a-moedeling-software-ie-openscad-freecad-and-how/23570 "2022-05-24T19:10:15Z")

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Hello lads, i have a school project and i want to link openscad to slicer and i want to know if its feasable and how can i do it? Thank you!

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## [error with installing extension Breast\_DCEMRI\_FTV](https://discourse.slicer.org/t/error-with-installing-extension-breast-dcemri-ftv/23569)

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**Author:** [@gekehe](https://discourse.slicer.org/u/gekehe)\
**Replies:** 0\
**Last updated:** [May 24, 2022, 7:10pm UTC](https://discourse.slicer.org/t/error-with-installing-extension-breast-dcemri-ftv/23569 "2022-05-24T19:10:07Z")

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Operating system: windows 10 Slicer version: 5.0.2 Expected behavior: installing extension Breast\_DCEMRI\_FTV and calculate FTV Actual behavior: I am new here and I installed 3D slicer without reporting any error. An e…

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## [Setup Jupyter Desktop Server](https://discourse.slicer.org/t/setup-jupyter-desktop-server/23512)

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**Author:** [@Tiago\_Guiomar](https://discourse.slicer.org/u/Tiago_Guiomar)\
**Replies:** 2\
**Last updated:** [May 24, 2022, 6:30pm UTC](https://discourse.slicer.org/t/setup-jupyter-desktop-server/23512 "2022-05-24T18:30:55Z")

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I’m trying to show the GUI in my jupyter notebook but I need to setup the Jupyter Desktop Server, any idea on how to do it?

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## [System Requirement](https://discourse.slicer.org/t/system-requirement/23564)

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**Author:** [@Akila22](https://discourse.slicer.org/u/Akila22)\
**Replies:** 2\
**Last updated:** [May 24, 2022, 6:10pm UTC](https://discourse.slicer.org/t/system-requirement/23564 "2022-05-24T18:10:32Z")

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Hello , I installed 3D SLICER on my laptop Acer swift 3 Core i5 8th generation , it works once and after a second tentative it stops with this appearing message , thank you for your clarification.

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## [File names and download of sample data](https://discourse.slicer.org/t/file-names-and-download-of-sample-data/23547)

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**Author:** [@Jacqueline\_Webb](https://discourse.slicer.org/u/Jacqueline_Webb)\
**Replies:** 2\
**Last updated:** [May 24, 2022, 3:44pm UTC](https://discourse.slicer.org/t/file-names-and-download-of-sample-data/23547 "2022-05-24T15:44:55Z")

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Problem report for Slicer 5.1.0-2022-05-22 macosx-amd64: \[please describe expected and actual behavior\] I am not seeing the file names of sample data, and when I click on the sample data file it is not clear where the s…

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## [Does Slicer support GE VolDICOM format data?](https://discourse.slicer.org/t/does-slicer-support-ge-voldicom-format-data/23559)

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**Author:** [@whu](https://discourse.slicer.org/u/whu)\
**Replies:** 0\
**Last updated:** [May 24, 2022, 12:48pm UTC](https://discourse.slicer.org/t/does-slicer-support-ge-voldicom-format-data/23559 "2022-05-24T12:48:08Z")

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Does Slicer support GE VolDICOM format data? anybody has suggestion or userguide? thanks

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## [Automatic naming of the segmentation file Corresponding to DICOM file](https://discourse.slicer.org/t/automatic-naming-of-the-segmentation-file-corresponding-to-dicom-file/23557)

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**Author:** [@prabhsharn\_Singh](https://discourse.slicer.org/u/prabhsharn_Singh)\
**Replies:** 1\
**Last updated:** [May 24, 2022, 12:40pm UTC](https://discourse.slicer.org/t/automatic-naming-of-the-segmentation-file-corresponding-to-dicom-file/23557 "2022-05-24T12:40:33Z")

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Hello, greeting folks I am working on a tumor classification model based on machine learning and deep learning that involves marking segmentation and saving it for each slice. DICOM data is labeled but while creating a …

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## [Differences between closed surface volume, labelmap volume and scalar volume](https://discourse.slicer.org/t/differences-between-closed-surface-volume-labelmap-volume-and-scalar-volume/23556)

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**Author:** [@Rosette](https://discourse.slicer.org/u/Rosette)\
**Replies:** 0\
**Last updated:** [May 24, 2022, 12:39pm UTC](https://discourse.slicer.org/t/differences-between-closed-surface-volume-labelmap-volume-and-scalar-volume/23556 "2022-05-24T12:39:22Z")

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Hello, I am new to 3D slicer and just wondering what are the differences between closed surface volume, labelmap volume and scalar volume in terms of segment statistics in 3D slicer? Any help would be appreciated!

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## [PET segmentation to CT DICOM](https://discourse.slicer.org/t/pet-segmentation-to-ct-dicom/23555)

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**Author:** [@Lieke\_2306](https://discourse.slicer.org/u/Lieke_2306)\
**Replies:** 0\
**Last updated:** [May 24, 2022, 12:39pm UTC](https://discourse.slicer.org/t/pet-segmentation-to-ct-dicom/23555 "2022-05-24T12:39:16Z")

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Dear all, I am fairly new to 3D Slicer so I am still figuring things out, but I hope you can help me. I have some data consisting of individual PET and CT scans. On the PET scans, I segmentated a lesion using PET-IndiC,…

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## [Merging different DICOM files together](https://discourse.slicer.org/t/merging-different-dicom-files-together/4345)

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**Author:** [@RexLuscus](https://discourse.slicer.org/u/RexLuscus)\
**Replies:** 11\
**Last updated:** [May 23, 2022, 10:47pm UTC](https://discourse.slicer.org/t/merging-different-dicom-files-together/4345 "2022-05-23T22:47:18Z")

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I have imported a series of DICOM files “a skull”, but it shows just all slides seperated. How can I merge them?!\[Screenshot01|690x376\](upload://jHLyIQxSvtlOjuUgvIRG Uoy5ahW.png) Thank you very much!

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## [Unable to download open3d library for ALPACA](https://discourse.slicer.org/t/unable-to-download-open3d-library-for-alpaca/22512)

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**Author:** [@Khanine](https://discourse.slicer.org/u/Khanine)\
**Replies:** 11\
**Last updated:** [May 23, 2022, 3:40pm UTC](https://discourse.slicer.org/t/unable-to-download-open3d-library-for-alpaca/22512 "2022-05-23T15:40:19Z")

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Hi all, I am trying to run some 3D morphometrics on ALPACA (a program within slicermorph) and every time I try to run it, it tells me “ALPACA requires open3d library. Installation will take a few minutes” then a whole i…

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## [Draw tube not working?](https://discourse.slicer.org/t/draw-tube-not-working/23538)

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**Author:** [@Vincent\_V](https://discourse.slicer.org/u/Vincent_V)\
**Replies:** 1\
**Last updated:** [May 23, 2022, 2:29pm UTC](https://discourse.slicer.org/t/draw-tube-not-working/23538 "2022-05-23T14:29:12Z")

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Operating system: Windows Slicer version: 4.11.20210226 Hi guys, i want to segment vessels and downloaded the SegmentEditorExtraEffects extension to use the “Draw Tube” option. However, the icon for fiducial placeme…

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## [MRML None not found](https://discourse.slicer.org/t/mrml-none-not-found/23067)

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**Author:** [@jpdefrutos](https://discourse.slicer.org/u/jpdefrutos)\
**Replies:** 7\
**Last updated:** [May 23, 2022, 5:39am UTC](https://discourse.slicer.org/t/mrml-none-not-found/23067 "2022-05-23T05:39:51Z")

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Hi! This issue is related to the SlicerLiver extension development (issue:). We are having problems a MRML node creation in our extension, on Windows 10. The error message is as follows: ASSERT failure in createNode: "…

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## [DCMTK error when building Slicer for arm64 MacOS Monterey](https://discourse.slicer.org/t/dcmtk-error-when-building-slicer-for-arm64-macos-monterey/23514)

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**Author:** [@maribernardes](https://discourse.slicer.org/u/maribernardes)\
**Replies:** 1\
**Last updated:** [May 23, 2022, 4:21am UTC](https://discourse.slicer.org/t/dcmtk-error-when-building-slicer-for-arm64-macos-monterey/23514 "2022-05-23T04:21:46Z")

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When trying to build the Slicer current source in my MacOS Monterey with M1 processor, I get this error message: – Configuring incomplete, errors occurred! See also “/opt/s/DCMTK-build/CMakeFiles/CMakeOutput.log”. See…

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## [3d model not showing up](https://discourse.slicer.org/t/3d-model-not-showing-up/23524)

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**Author:** [@Crim](https://discourse.slicer.org/u/Crim)\
**Replies:** 2\
**Last updated:** [May 23, 2022, 3:01am UTC](https://discourse.slicer.org/t/3d-model-not-showing-up/23524 "2022-05-23T03:01:41Z")

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Hello, I’m trying to do some experiments with 3D Slicer, but the 3d model doesn’t show up no matter what I do (I tried to adjust the fov and under “volume rendering” section I only have the CT object, not the 3d one). By…

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## [Clarius Plus Connection udp Port Errors](https://discourse.slicer.org/t/clarius-plus-connection-udp-port-errors/23504)

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**Author:** [@ChristophG123](https://discourse.slicer.org/u/ChristophG123)\
**Replies:** 1\
**Last updated:** [May 21, 2022, 5:41pm UTC](https://discourse.slicer.org/t/clarius-plus-connection-udp-port-errors/23504 "2022-05-21T17:41:10Z")

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Operating system: Windows 10 64 bits Slicer version: 5.1.0 2022-05-04 Expected behavior: Connecting Clarius to 3D Slicer using Cast API and Plus Server Actual behavior: Both the computer & tablet are connected on the…

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## [How to Load a Volume in Slicer](https://discourse.slicer.org/t/how-to-load-a-volume-in-slicer/23348)

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**Author:** [@emma1201](https://discourse.slicer.org/u/emma1201)\
**Replies:** 5\
**Last updated:** [May 21, 2022, 3:46pm UTC](https://discourse.slicer.org/t/how-to-load-a-volume-in-slicer/23348 "2022-05-21T15:46:57Z")

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Hi everyone, am a student who is just starting out with Slicer. I have a really basic question and am frustrated that I cannot find out what is wrong - I am unable to load any input Volumes. I have created a volume ‘DTI …

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## [Convert CSV files to be loadable as Fiducials or as Sequence of Fiducials (JSON)](https://discourse.slicer.org/t/convert-csv-files-to-be-loadable-as-fiducials-or-as-sequence-of-fiducials-json/18320)

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**Author:** [@hmaguilera](https://discourse.slicer.org/u/hmaguilera)\
**Replies:** 4\
**Last updated:** [May 20, 2022, 11:42pm UTC](https://discourse.slicer.org/t/convert-csv-files-to-be-loadable-as-fiducials-or-as-sequence-of-fiducials-json/18320 "2022-05-20T23:42:15Z")

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Hi, I have several CSV files which contain nodal coordinates of a finite element mesh at different time-points after finite element analysis. I want to validate the FE-model with echocardiography, and therefore want to…

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## [Orientation coronal and sagittal slices](https://discourse.slicer.org/t/orientation-coronal-and-sagittal-slices/23506)

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**Author:** [@anon29823344](https://discourse.slicer.org/u/anon29823344)\
**Replies:** 1\
**Last updated:** [May 20, 2022, 2:45pm UTC](https://discourse.slicer.org/t/orientation-coronal-and-sagittal-slices/23506 "2022-05-20T14:45:54Z")

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Hello everybody. I have a question about how Slicer displays data from a DICOM. Below I show you two screenshots of the segmentation of two different samples. If you look closely, the orientation of the coronal and sagi…

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## [Error when trying to load module RVesselX](https://discourse.slicer.org/t/error-when-trying-to-load-module-rvesselx/23493)

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**Author:** [@n0wm3](https://discourse.slicer.org/u/n0wm3)\
**Replies:** 3\
**Last updated:** [May 20, 2022, 6:25am UTC](https://discourse.slicer.org/t/error-when-trying-to-load-module-rvesselx/23493 "2022-05-20T06:25:32Z")

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Hello, I’m trying to install an extension SilcerRVXLiverSegmentation, and when I couldn’t load the module. Here is the error log: Traceback (most recent call last): File “”, line 1, in File “C:\\Users\\karis\\AppData\\L…

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## [Analysing Cupping Effect of a CT-Scanner](https://discourse.slicer.org/t/analysing-cupping-effect-of-a-ct-scanner/23178)

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**Author:** [@Joshua](https://discourse.slicer.org/u/Joshua)\
**Replies:** 1\
**Last updated:** [May 19, 2022, 7:27pm UTC](https://discourse.slicer.org/t/analysing-cupping-effect-of-a-ct-scanner/23178 "2022-05-19T19:27:44Z")

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Hello, I’d like to analyse the homogeneity of the voxel values along the x, y and z axis. Is there any way of getting the mean voxel value of an area along an axis. Like for each slice the same area → calculating the …

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