# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=271

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

**Page:** 272

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## [Send transform from 3D slicer to MAtlab](https://discourse.slicer.org/t/send-transform-from-3d-slicer-to-matlab/18560)

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**Author:** [@Matteo\_Boles](https://discourse.slicer.org/u/Matteo_Boles)\
**Replies:** 2\
**Last updated:** [July 9, 2021, 5:46am UTC](https://discourse.slicer.org/t/send-transform-from-3d-slicer-to-matlab/18560 "2021-07-09T05:46:59Z")

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Hello, I am trying to send a transform from 3D slicer to matlab and I followed the steps in the examples at this link: PlusToolkit/PlusMatlabUtils: Matlab utilities for reading/writing Plus data structures and communica…

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## [ultra sound 4d image into stl file ](https://discourse.slicer.org/t/ultra-sound-4d-image-into-stl-file/18547)

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**Author:** [@Christopher\_Candiote](https://discourse.slicer.org/u/Christopher_Candiote)\
**Replies:** 1\
**Last updated:** [July 9, 2021, 5:32am UTC](https://discourse.slicer.org/t/ultra-sound-4d-image-into-stl-file/18547 "2021-07-09T05:32:06Z")

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Good Day so i have followed the video to take my daughters 4d scan to convert to a stl file to 3d resin print it but no luck the program bombs out. how can i do it a other way hope anyone can help

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## [Lines appear other than centerline](https://discourse.slicer.org/t/lines-appear-other-than-centerline/18531)

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**Author:** [@parvaneh.a](https://discourse.slicer.org/u/parvaneh.a)\
**Replies:** 1\
**Last updated:** [July 9, 2021, 5:15am UTC](https://discourse.slicer.org/t/lines-appear-other-than-centerline/18531 "2021-07-09T05:15:41Z")

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Operating system: Slicer version:4.11 Expected behavior: Only one line as centerline Actual behavior:getting another colorful network such as a graph I am using the tutorial to get the center line of the vessels atta…

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## [ROS and Polaris vicra](https://discourse.slicer.org/t/ros-and-polaris-vicra/18529)

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**Author:** [@Matteo\_Boles](https://discourse.slicer.org/u/Matteo_Boles)\
**Replies:** 1\
**Last updated:** [July 9, 2021, 5:12am UTC](https://discourse.slicer.org/t/ros-and-polaris-vicra/18529 "2021-07-09T05:12:11Z")

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Hello, I was able to connect Polaris vicra with 3d slicer to track the position of the tip of a probe. Now my goal is to send the position of this tip through ROS. I have 3D slicer running on windows and I would like …

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## [how to copy a region of interest to have same size](https://discourse.slicer.org/t/how-to-copy-a-region-of-interest-to-have-same-size/18517)

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**Author:** [@ecgt](https://discourse.slicer.org/u/ecgt)\
**Replies:** 1\
**Last updated:** [July 9, 2021, 5:06am UTC](https://discourse.slicer.org/t/how-to-copy-a-region-of-interest-to-have-same-size/18517 "2021-07-09T05:06:02Z")

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Operating system:Windows Slicer version:: 4.11.202 Expected behavior:copy a region of interest in DTI module to have same size in all measurements Actual behavior:

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## [3D slicer navigation system: scrolling between CT scans](https://discourse.slicer.org/t/3d-slicer-navigation-system-scrolling-between-ct-scans/18516)

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**Author:** [@Matteo\_Boles](https://discourse.slicer.org/u/Matteo_Boles)\
**Replies:** 1\
**Last updated:** [July 9, 2021, 5:04am UTC](https://discourse.slicer.org/t/3d-slicer-navigation-system-scrolling-between-ct-scans/18516 "2021-07-09T05:04:43Z")

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Hello, I was able to make polaris vicra navigation system work with 3D slicer, because I wanted to take into account the position of the tip of an instrumented while navigating inside a 3D printed vertebral body. What …

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## [Markuppoints to freesurferoutput segment/parcellation correlations on 2dslicer viewer](https://discourse.slicer.org/t/markuppoints-to-freesurferoutput-segment-parcellation-correlations-on-2dslicer-viewer/18510)

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**Author:** [@mubafz](https://discourse.slicer.org/u/mubafz)\
**Replies:** 1\
**Last updated:** [July 9, 2021, 5:01am UTC](https://discourse.slicer.org/t/markuppoints-to-freesurferoutput-segment-parcellation-correlations-on-2dslicer-viewer/18510 "2021-07-09T05:01:16Z")

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Hi all, I wanted to ask if its possible to correlate markup points one has place to segmentations/parcellation labels of freesurfer output in ones MRI. I click the markup in the 2DSlicer viewers and it indicates where i…

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## [Expert automated registration](https://discourse.slicer.org/t/expert-automated-registration/14970)

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**Author:** [@HodaGH](https://discourse.slicer.org/u/HodaGH)\
**Replies:** 19\
**Last updated:** [July 9, 2021, 4:40am UTC](https://discourse.slicer.org/t/expert-automated-registration/14970 "2021-07-09T04:40:53Z")

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Hi everyone, I’m working on a project about registration of MR and CT images of pelvis. The only module that works for me without providing initial manual transformation is Expert Automated module which registers when t…

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## [Horizontal and vertical distances](https://discourse.slicer.org/t/horizontal-and-vertical-distances/18450)

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**Author:** [@smm9886](https://discourse.slicer.org/u/smm9886)\
**Replies:** 3\
**Last updated:** [July 8, 2021, 5:36pm UTC](https://discourse.slicer.org/t/horizontal-and-vertical-distances/18450 "2021-07-08T17:36:10Z")

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Hi all, I could utilize 3D Slicer to extract aortic root and coronary from a thorax-heart DICOM file. Now, I need to set rulers on the 3D view to show the horizontal and vertical distances on my model. However: 1- How …

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## [Help with binary labelmaps of reformatted DICOM ](https://discourse.slicer.org/t/help-with-binary-labelmaps-of-reformatted-dicom/18485)

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**Author:** [@DaZo](https://discourse.slicer.org/u/DaZo)\
**Replies:** 1\
**Last updated:** [July 8, 2021, 5:29pm UTC](https://discourse.slicer.org/t/help-with-binary-labelmaps-of-reformatted-dicom/18485 "2021-07-08T17:29:11Z")

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Operating system: Win 10 Home Slicer version: 4.10.2 Expected behavior: Actual behavior: Hi everyone! I have the following issue: I want to create a 2D segmentation on a single slice of reformatted CT DICOM images a…

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## [Run 3D slicer openIGTLink simultaneously as server and client](https://discourse.slicer.org/t/run-3d-slicer-openigtlink-simultaneously-as-server-and-client/18577)

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**Author:** [@Matteo\_Boles](https://discourse.slicer.org/u/Matteo_Boles)\
**Replies:** 1\
**Last updated:** [July 8, 2021, 3:40pm UTC](https://discourse.slicer.org/t/run-3d-slicer-openigtlink-simultaneously-as-server-and-client/18577 "2021-07-08T15:40:30Z")

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Hello, I would like to run 3D slicer simultaneously as server and client because I need it as client to get the tracked position with polaris vicra of the tip of a probe and also I need it as a server to send out some p…

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## [Voxel size scale](https://discourse.slicer.org/t/voxel-size-scale/17694)

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**Author:** [@granizado](https://discourse.slicer.org/u/granizado)\
**Replies:** 3\
**Last updated:** [July 8, 2021, 3:37pm UTC](https://discourse.slicer.org/t/voxel-size-scale/17694 "2021-07-08T15:37:39Z")

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I completed a segmentation and in the final steps when I added a scale bar I realised that the dimensions are far too big than the real ones which makes a problem with segment statistics as well. I have a voxel resolutio…

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## [Inquiries about module types](https://discourse.slicer.org/t/inquiries-about-module-types/18464)

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**Author:** [@CharlesChen](https://discourse.slicer.org/u/CharlesChen)\
**Replies:** 10\
**Last updated:** [July 8, 2021, 12:14am UTC](https://discourse.slicer.org/t/inquiries-about-module-types/18464 "2021-07-08T00:14:35Z")

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Hello, I’m new to 3D Slicer, and now I am learning how to develop a new module in 3D Slicer to implement new features. This module’s main function/feature will be: it can be used to calculate the proportion of the conf…

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## [Baffle planner may crash Slicer](https://discourse.slicer.org/t/baffle-planner-may-crash-slicer/18528)

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**Author:** [@chir.set](https://discourse.slicer.org/u/chir.set)\
**Replies:** 1\
**Last updated:** [July 7, 2021, 11:46pm UTC](https://discourse.slicer.org/t/baffle-planner-may-crash-slicer/18528 "2021-07-07T23:46:18Z")

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Seen on Linux, factory and home built. The crash happens almost always in this sequence : Load a volume Go to Baffle planner Create new closed curve from combobox Place points in a single slice view Create model with t…

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## [Volume measurement of defect with Surface Scan](https://discourse.slicer.org/t/volume-measurement-of-defect-with-surface-scan/18501)

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**Author:** [@manjula](https://discourse.slicer.org/u/manjula)\
**Replies:** 1\
**Last updated:** [July 7, 2021, 4:48pm UTC](https://discourse.slicer.org/t/volume-measurement-of-defect-with-surface-scan/18501 "2021-07-07T16:48:10Z")

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What would be the best way to measure the volume of a surface defect with a surface scan. The surface scan is in the stl format. I have tried by using converting to segment and creating a blank volume and segmenting th…

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## [Level tracing on a single slice from a 3D volume](https://discourse.slicer.org/t/level-tracing-on-a-single-slice-from-a-3d-volume/16693)

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**Author:** [@Marc0](https://discourse.slicer.org/u/Marc0)\
**Replies:** 4\
**Last updated:** [July 7, 2021, 4:14pm UTC](https://discourse.slicer.org/t/level-tracing-on-a-single-slice-from-a-3d-volume/16693 "2021-07-07T16:14:52Z")

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I would like to load a single slice out of a DICOM volume on 3DSlicer and to segment it via the Level Tracing tool. The level tracing works on the full volume but it does not work if I load a single slice out of this vol…

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## [How to disable right click zoom function individually?](https://discourse.slicer.org/t/how-to-disable-right-click-zoom-function-individually/18029)

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**Author:** [@luxiaoyang9999](https://discourse.slicer.org/u/luxiaoyang9999)\
**Replies:** 4\
**Last updated:** [July 7, 2021, 2:00pm UTC](https://discourse.slicer.org/t/how-to-disable-right-click-zoom-function-individually/18029 "2021-07-07T14:00:56Z")

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Hello everyone I tried to disable right click zoom function through interactorStyle = slicer.app.layoutManager().sliceWidget('Red').sliceView().sliceViewInteractorStyle() interactorStyle.SetActionEnabled(interactorStyl…

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## [Slicer-RT Contour Analysis ](https://discourse.slicer.org/t/slicer-rt-contour-analysis/18563)

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**Author:** [@liam-stubbington](https://discourse.slicer.org/u/liam-stubbington)\
**Replies:** 3\
**Last updated:** [July 7, 2021, 1:22pm UTC](https://discourse.slicer.org/t/slicer-rt-contour-analysis/18563 "2021-07-07T13:22:34Z")

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Hi, Massive fun of the 3D slicer project but a newbie. I want to install the Slicer RT extension - specifically I want to make liberal use of the contour analysis module. I am working within a hospital network so I su…

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## [Difficulty With Multiple Landmark Registrations](https://discourse.slicer.org/t/difficulty-with-multiple-landmark-registrations/9876)

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**Author:** [@jrhodes](https://discourse.slicer.org/u/jrhodes)\
**Replies:** 3\
**Last updated:** [January 20, 2020, 10:34pm UTC](https://discourse.slicer.org/t/difficulty-with-multiple-landmark-registrations/9876 "2020-01-20T22:34:46Z")

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I was not sure if it was more appropriate to post this on the PlusLib or here, so I apologize for the repost. I am on the last part of my arUco webcam project! I have the following setup: \*TrackerToRas Marker8ToTrac…

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## [Wrong orientation when DICOM files are opened with version 4.11](https://discourse.slicer.org/t/wrong-orientation-when-dicom-files-are-opened-with-version-4-11/18541)

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**Author:** [@neginkho](https://discourse.slicer.org/u/neginkho)\
**Replies:** 1\
**Last updated:** [July 6, 2021, 8:06pm UTC](https://discourse.slicer.org/t/wrong-orientation-when-dicom-files-are-opened-with-version-4-11/18541 "2021-07-06T20:06:48Z")

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Operating system: Windows 10 Slicer version: 4.10.2/4.11 When I open my DICOM files with the newest version of Slicer (4.11.20200930), the orientation of the images and their coordinates have changed compared to the ol…

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## [Slicer crashing during Model Making](https://discourse.slicer.org/t/slicer-crashing-during-model-making/18534)

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**Author:** [@lna090001](https://discourse.slicer.org/u/lna090001)\
**Replies:** 1\
**Last updated:** [July 6, 2021, 4:43pm UTC](https://discourse.slicer.org/t/slicer-crashing-during-model-making/18534 "2021-07-06T16:43:02Z")

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My slicer keeps crashing during model making. I load my volume, adjust the dimensions and use the legacy editor to segment (it is what i am used to). After I have generated a label map, I will use the model maker button …

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## [Slicer not opening anymore](https://discourse.slicer.org/t/slicer-not-opening-anymore/18520)

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**Author:** [@bcolbert](https://discourse.slicer.org/u/bcolbert)\
**Replies:** 2\
**Last updated:** [July 5, 2021, 10:01pm UTC](https://discourse.slicer.org/t/slicer-not-opening-anymore/18520 "2021-07-05T22:01:53Z")

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I am using a Windows desktop with plenty of RAM (64gb, no other programs open). Slicer worked fine until 20minutes ago when it crashed my computer when opening up a relatively small dataset. Computer restarted and now I …

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## [Skeleton, measuring a curve length](https://discourse.slicer.org/t/skeleton-measuring-a-curve-length/1665)

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**Author:** [@brhoom](https://discourse.slicer.org/u/brhoom)\
**Replies:** 8\
**Last updated:** [July 5, 2021, 6:32pm UTC](https://discourse.slicer.org/t/skeleton-measuring-a-curve-length/1665 "2021-07-05T18:32:19Z")

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Operating system: Ubuntu 16 Slicer version: 4.8 Expected behavior: getting an output Actual behavior: infinite loop Dear all, I have few questions related automatic measurement the length of an object in Slicer. The…

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## [Issue using Dcm2niixPlugin for 4D DTI Dicom data](https://discourse.slicer.org/t/issue-using-dcm2niixplugin-for-4d-dti-dicom-data/18402)

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**Author:** [@andieku](https://discourse.slicer.org/u/andieku)\
**Replies:** 7\
**Last updated:** [July 5, 2021, 5:39pm UTC](https://discourse.slicer.org/t/issue-using-dcm2niixplugin-for-4d-dti-dicom-data/18402 "2021-07-05T17:39:09Z")

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Hi, I have been using Dcm2niixPlugin to convert 4D DTI Dicom files to a 4D NIFTI file (.nii). However, when I checked the output from the plugin’s load(self,loadable) function, it returned a 3D volume node while it’s su…

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## [Export model to model distances as.csv](https://discourse.slicer.org/t/export-model-to-model-distances-as-csv/18506)

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**Author:** [@fred](https://discourse.slicer.org/u/fred)\
**Replies:** 2\
**Last updated:** [July 5, 2021, 6:23am UTC](https://discourse.slicer.org/t/export-model-to-model-distances-as-csv/18506 "2021-07-05T06:23:51Z")

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Slicer 4.11 on Mac OS X. Hi everyone, I’d like to export the results of the “model to model distance” extension as an .csv file for further analysis of the 3D distances. The “mesh statistics” extension only computes Mi…

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## [How to display color scalar bar (by Hounsfield Unit) in 3D views?](https://discourse.slicer.org/t/how-to-display-color-scalar-bar-by-hounsfield-unit-in-3d-views/18481)

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**Author:** [@jumbojing](https://discourse.slicer.org/u/jumbojing)\
**Replies:** 3\
**Last updated:** [July 3, 2021, 1:00am UTC](https://discourse.slicer.org/t/how-to-display-color-scalar-bar-by-hounsfield-unit-in-3d-views/18481 "2021-07-03T01:00:58Z")

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I want to know how to display color scalar bar (by Hounsfield Unit) in 3D views? Display color scalar bar in 3D views(by Radial Compression)

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## [Problems with volume rendering](https://discourse.slicer.org/t/problems-with-volume-rendering/18084)

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**Author:** [@Leo\_Pacheco](https://discourse.slicer.org/u/Leo_Pacheco)\
**Replies:** 3\
**Last updated:** [July 2, 2021, 5:46pm UTC](https://discourse.slicer.org/t/problems-with-volume-rendering/18084 "2021-07-02T17:46:46Z")

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Hello, I’ve been having problems with the volume rendering option of the program for my 910 dcom files. I followed all the basic steps for loading and creating the volume rendering but I simply can’t visualize the model …

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## [Can I export my segmentation as Voxels instead of triangular/Tetrahedral Mesh?](https://discourse.slicer.org/t/can-i-export-my-segmentation-as-voxels-instead-of-triangular-tetrahedral-mesh/10210)

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**Author:** [@Mohammad\_Tanjib\_Rahm](https://discourse.slicer.org/u/Mohammad_Tanjib_Rahm)\
**Replies:** 3\
**Last updated:** [July 2, 2021, 5:12pm UTC](https://discourse.slicer.org/t/can-i-export-my-segmentation-as-voxels-instead-of-triangular-tetrahedral-mesh/10210 "2021-07-02T17:12:17Z")

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I am segmenting some MRI data. But I see that the generated 3D model uses triangular mesh instead of voxels. Is there anyway to do this?

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## [Can we split an array of points in islands?](https://discourse.slicer.org/t/can-we-split-an-array-of-points-in-islands/18439)

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**Author:** [@chir.set](https://discourse.slicer.org/u/chir.set)\
**Replies:** 2\
**Last updated:** [July 2, 2021, 1:05pm UTC](https://discourse.slicer.org/t/can-we-split-an-array-of-points-in-islands/18439 "2021-07-02T13:05:07Z")

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My final goal is to measure cross-section area of arterial segments. The image below shows a segmented aorto-iliac aneurysm with a centerline in theaorta and the left iliac artery. The cross-section is moved along the C…

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## [Corner Annotations multiple texts](https://discourse.slicer.org/t/corner-annotations-multiple-texts/18434)

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**Author:** [@seanchoi0519](https://discourse.slicer.org/u/seanchoi0519)\
**Replies:** 2\
**Last updated:** [July 2, 2021, 7:56am UTC](https://discourse.slicer.org/t/corner-annotations-multiple-texts/18434 "2021-07-02T07:56:36Z")

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Would there be any way for me to add 2 texts in the lower middle of the view? I know that the code for adding a line of text is: self.view = slicer.app.layoutManager().threeDWidget(0).threeDView() self.view.cornerAnnota…

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