# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=368

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

**Page:** 369

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## [Synchronizing zoom factor between views](https://discourse.slicer.org/t/synchronizing-zoom-factor-between-views/8660)

<div class="topic-metadata">

**Author:** [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Replies:** 2\
**Last updated:** [October 8, 2019, 12:32am UTC](https://discourse.slicer.org/t/synchronizing-zoom-factor-between-views/8660 "2019-10-08T00:32:20Z")

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Currently, when slice views are linked, zoom factor is only synchronized between views that have the same orientation. It means that when you zoom in on an axial view, you still need to go to sagittal and coronal views i…

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## [Slicer to DICOM contrast Issues](https://discourse.slicer.org/t/slicer-to-dicom-contrast-issues/8567)

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**Author:** [@rsheth](https://discourse.slicer.org/u/rsheth)\
**Replies:** 9\
**Last updated:** [October 7, 2019, 11:22pm UTC](https://discourse.slicer.org/t/slicer-to-dicom-contrast-issues/8567 "2019-10-07T23:22:39Z")

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Hi All! I am having an issue regarding the transport of a newly converted nrrd file to DICOM (done using slicer). When I go to import the file into a DICOM viewer (Horos), the contrast suddenly changes drastically and t…

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## [How could I do that I can connect another linux computer(server) via OpenIGTLink?](https://discourse.slicer.org/t/how-could-i-do-that-i-can-connect-another-linux-computer-server-via-openigtlink/8678)

<div class="topic-metadata">

**Author:** [@Zhao\_Su](https://discourse.slicer.org/u/Zhao_Su)\
**Replies:** 1\
**Last updated:** [October 7, 2019, 6:09pm UTC](https://discourse.slicer.org/t/how-could-i-do-that-i-can-connect-another-linux-computer-server-via-openigtlink/8678 "2019-10-07T18:09:41Z")

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I want to connect a robot arm using Slicer. I had already set up the ROS enviroment and installed ROS-IGT\_bridge and everything I need. But when I use OpenIGTLinkIF module , and check the Active, the status is always “w…

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## [How can I import in the same volume 3 DICOM files of the same volume](https://discourse.slicer.org/t/how-can-i-import-in-the-same-volume-3-dicom-files-of-the-same-volume/8695)

<div class="topic-metadata">

**Author:** [@valeriofaraone](https://discourse.slicer.org/u/valeriofaraone)\
**Replies:** 1\
**Last updated:** [October 7, 2019, 5:51pm UTC](https://discourse.slicer.org/t/how-can-i-import-in-the-same-volume-3-dicom-files-of-the-same-volume/8695 "2019-10-07T17:51:13Z")

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Hi I am having a problem with the DICOM import, I have 3 DICOM files: the coronal, the axial and the sagittal MRI of the same patient. The problem is that when I add these 3 DICOM files, Slicer3D dislpays them in 3 diff…

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## [Thresholding Failing in Nightly Build](https://discourse.slicer.org/t/thresholding-failing-in-nightly-build/8693)

<div class="topic-metadata">

**Author:** [@stevenagl12](https://discourse.slicer.org/u/stevenagl12)\
**Replies:** 4\
**Last updated:** [October 7, 2019, 4:59pm UTC](https://discourse.slicer.org/t/thresholding-failing-in-nightly-build/8693 "2019-10-07T16:59:34Z")

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I am working on a windows 10, and have the latest nightly build from today. When I import my volume and then import a labelmap, convert it to a segmentation node, and attempt to threshold the volume, the segmentation fai…

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## [Capture scene layout is broken in later nightlies](https://discourse.slicer.org/t/capture-scene-layout-is-broken-in-later-nightlies/8609)

<div class="topic-metadata">

**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 5\
**Last updated:** [October 7, 2019, 12:20am UTC](https://discourse.slicer.org/t/capture-scene-layout-is-broken-in-later-nightlies/8609 "2019-10-07T00:20:46Z")

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It take a blank screen captuure, and also saves it as a model node in the subject hierarchy. There is also this error message: “class QColor \_\_cdecl qSlicerSubjectHierarchyModelsPlugin::getDisplayColor(\_\_int64,class QMa…

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## [Fail when loading DICOM: Plugin failed: MultiVolumeImporterPlugin](https://discourse.slicer.org/t/fail-when-loading-dicom-plugin-failed-multivolumeimporterplugin/8686)

<div class="topic-metadata">

**Author:** [@norus](https://discourse.slicer.org/u/norus)\
**Replies:** 2\
**Last updated:** [October 6, 2019, 5:37pm UTC](https://discourse.slicer.org/t/fail-when-loading-dicom-plugin-failed-multivolumeimporterplugin/8686 "2019-10-06T17:37:43Z")

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Hello cracks, a simple user see this warning and has no plan what to do: Warning: Plugin failed: MultiVolumeImporterPlugin See python console for error message. DICOM Plugin failed: SetAttribute argument 2: (unicode …

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## [How to measure the upper airway length and volume?](https://discourse.slicer.org/t/how-to-measure-the-upper-airway-length-and-volume/8670)

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**Author:** [@kwichuda](https://discourse.slicer.org/u/kwichuda)\
**Replies:** 1\
**Last updated:** [October 6, 2019, 2:47am UTC](https://discourse.slicer.org/t/how-to-measure-the-upper-airway-length-and-volume/8670 "2019-10-06T02:47:18Z")

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I want to measure the upper airway (oropharynx) but I don’t know how to measure. How to calculate the airway length and volume from 3D slicer.

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## [MRI Images will not load properly](https://discourse.slicer.org/t/mri-images-will-not-load-properly/8681)

<div class="topic-metadata">

**Author:** [@AnthonyG](https://discourse.slicer.org/u/AnthonyG)\
**Replies:** 1\
**Last updated:** [October 5, 2019, 3:19pm UTC](https://discourse.slicer.org/t/mri-images-will-not-load-properly/8681 "2019-10-05T15:19:31Z")

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Hello. I am having trouble importing a stacked MRI image. When it loads into Slicer, it appears like this (image below) and it is impossible to work with.

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## [Slicer crashes when using QThreadPool to start QRunnable in python module](https://discourse.slicer.org/t/slicer-crashes-when-using-qthreadpool-to-start-qrunnable-in-python-module/8596)

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**Author:** [@Guangshan\_Chen](https://discourse.slicer.org/u/Guangshan_Chen)\
**Replies:** 16\
**Last updated:** [October 4, 2019, 3:48pm UTC](https://discourse.slicer.org/t/slicer-crashes-when-using-qthreadpool-to-start-qrunnable-in-python-module/8596 "2019-10-04T15:48:42Z")

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I Would like to move some jobs to another QThread to avoid the frozen of the main thread (GUI). I tried python ThreadPoolExecutor to create a thread. However, the child thread is too slow. According to the suggestion of…

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## [Slicer 4.11 crash when switch to a layout with standard quantitave](https://discourse.slicer.org/t/slicer-4-11-crash-when-switch-to-a-layout-with-standard-quantitave/8598)

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**Author:** [@g.belmonte](https://discourse.slicer.org/u/g.belmonte)\
**Replies:** 3\
**Last updated:** [October 4, 2019, 3:32pm UTC](https://discourse.slicer.org/t/slicer-4-11-crash-when-switch-to-a-layout-with-standard-quantitave/8598 "2019-10-04T15:32:26Z")

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Hi everybody, since the last update when I switch to a layout with standard quantitative Slicer crashes (both manual switch and from python script). The error I have is An OpenGL Core Profile was requested, but it is n…

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## [Sorting images in a stack based on dicom header](https://discourse.slicer.org/t/sorting-images-in-a-stack-based-on-dicom-header/8669)

<div class="topic-metadata">

**Author:** [@mshah](https://discourse.slicer.org/u/mshah)\
**Replies:** 3\
**Last updated:** [October 4, 2019, 1:10pm UTC](https://discourse.slicer.org/t/sorting-images-in-a-stack-based-on-dicom-header/8669 "2019-10-04T13:10:18Z")

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Hi everyone, I am working with a stack of 25 DTI images taken in 26 gradient directions, this ultimately comes to 650 dicom files in each stack. In the metadata, I was moving through files from 1 to 650 and observing th…

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## [Problems uploading DICOM files](https://discourse.slicer.org/t/problems-uploading-dicom-files/8650)

<div class="topic-metadata">

**Author:** [@Nichola0155](https://discourse.slicer.org/u/Nichola0155)\
**Replies:** 2\
**Last updated:** [October 4, 2019, 10:40am UTC](https://discourse.slicer.org/t/problems-uploading-dicom-files/8650 "2019-10-04T10:40:17Z")

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Operating system: windows Slicer version: 4.10.1 Expected behavior: Loading DICOM files Actual behavior: Files will not load. Receiving the error: Irregular volume geometry detected (maximum error of 0.00282662 mm is …

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## [3DSlicer (binary version) crashes with extension manager](https://discourse.slicer.org/t/3dslicer-binary-version-crashes-with-extension-manager/8664)

<div class="topic-metadata">

**Author:** [@MachadoL](https://discourse.slicer.org/u/MachadoL)\
**Replies:** 3\
**Last updated:** [October 4, 2019, 4:45am UTC](https://discourse.slicer.org/t/3dslicer-binary-version-crashes-with-extension-manager/8664 "2019-10-04T04:45:20Z")

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Hey guys, I am struggling a lot with extension manager of Binary 3DSlicer version and all my developer version ones: Every time I open extension manager it either collapse right away or loads but freezes somewhere. I u…

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## [Inconsistency in "Attributes"?](https://discourse.slicer.org/t/inconsistency-in-attributes/8659)

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**Author:** [@unnmdnwb3](https://discourse.slicer.org/u/unnmdnwb3)\
**Replies:** 2\
**Last updated:** [October 3, 2019, 3:36pm UTC](https://discourse.slicer.org/t/inconsistency-in-attributes/8659 "2019-10-03T15:36:35Z")

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Hi everyone, I had to implement a check, if a file to import has dicom-data associated. Hence, I took a look at the example in the script repository. However, I tried different approaches, which resulted in (for me) u…

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## [Transformation does not match registration](https://discourse.slicer.org/t/transformation-does-not-match-registration/512)

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**Author:** [@Ivan\_Hidrovo](https://discourse.slicer.org/u/Ivan_Hidrovo)\
**Replies:** 10\
**Last updated:** [October 3, 2019, 3:19pm UTC](https://discourse.slicer.org/t/transformation-does-not-match-registration/512 "2019-10-03T15:19:10Z")

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Hello guys, I have done a registration in the general registration module (BRAINS) and saved the transformation matrix in a text file. Using the transforms module, I now apply the same linear transformation to the orig…

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## [How to GetIJKToRASDirections from a volume node](https://discourse.slicer.org/t/how-to-getijktorasdirections-from-a-volume-node/8651)

<div class="topic-metadata">

**Author:** [@Guangshan\_Chen](https://discourse.slicer.org/u/Guangshan_Chen)\
**Replies:** 7\
**Last updated:** [October 3, 2019, 1:45pm UTC](https://discourse.slicer.org/t/how-to-getijktorasdirections-from-a-volume-node/8651 "2019-10-03T13:45:30Z")

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Dear all, I would like to get IJKToRASDirections from a node and set IJKToRASDirections to another in python script. But I do not think I get correct one. dirs = \[\[0\] \* 3\] \* 3 body\_roi\_labelmap\_node.GetIJKToRAS…

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## [Craniosynostosis surgery planning](https://discourse.slicer.org/t/craniosynostosis-surgery-planning/8597)

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**Author:** [@martig](https://discourse.slicer.org/u/martig)\
**Replies:** 3\
**Last updated:** [October 3, 2019, 10:28am UTC](https://discourse.slicer.org/t/craniosynostosis-surgery-planning/8597 "2019-10-03T10:28:47Z")

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Hi, I’m trying to do craniosynostosis surgery planning in Slicer. Basically I need to accurately define two intersecting planes by fiducials and then separate a piece of the skull like on the first image → So far I ha…

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## [Slicer spr export](https://discourse.slicer.org/t/slicer-spr-export/8627)

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**Author:** [@Chris\_Rorden](https://discourse.slicer.org/u/Chris_Rorden)\
**Replies:** 2\
**Last updated:** [October 2, 2019, 7:18pm UTC](https://discourse.slicer.org/t/slicer-spr-export/8627 "2019-10-02T19:18:50Z")

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I think I found a tiny bug in the Slicer image export. I am using Slicer 4.10.2 on a MacOS computer. I can open a NRRD volume and choose File/Save to save the file. I want to save as Stimulate Sdt so I save Stimulate (…

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## [Error while running GradQC](https://discourse.slicer.org/t/error-while-running-gradqc/8644)

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**Author:** [@nabin](https://discourse.slicer.org/u/nabin)\
**Replies:** 2\
**Last updated:** [October 2, 2019, 12:45pm UTC](https://discourse.slicer.org/t/error-while-running-gradqc/8644 "2019-10-02T12:45:42Z")

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Dear Slicer team, I am trying to run the module GradQC to check the quality of my diffusion data and it’s supposed to be a simple process which should work by giving input as my dwi.nii.gz file and run it but it throws …

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## [Clone markups node](https://discourse.slicer.org/t/clone-markups-node/8635)

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**Author:** [@ezemikulan](https://discourse.slicer.org/u/ezemikulan)\
**Replies:** 2\
**Last updated:** [October 2, 2019, 7:50am UTC](https://discourse.slicer.org/t/clone-markups-node/8635 "2019-10-02T07:50:12Z")

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Hi, I need to clone a markups node but I can’t find a way to do it. I know that for volumes there is (using python): slicer.vtkSlicerVolumesLogic().CloneVolume() I would like to know if there’s a similar method for m…

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## [Inquiries on Virtual Realty View Interactor Style](https://discourse.slicer.org/t/inquiries-on-virtual-realty-view-interactor-style/8570)

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**Author:** [@Netta\_Z](https://discourse.slicer.org/u/Netta_Z)\
**Replies:** 1\
**Last updated:** [October 2, 2019, 2:36am UTC](https://discourse.slicer.org/t/inquiries-on-virtual-realty-view-interactor-style/8570 "2019-10-02T02:36:07Z")

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Hi, I was trying to configure my own controller interactions for Windows Mixed Reality when I came across vtkVitualRealityViewInteractorstyle (https://github.com/KitwareMedical/SlicerVirtualReality/blob/master/VirtualRe…

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## [Ultrasound Simulation Parameters](https://discourse.slicer.org/t/ultrasound-simulation-parameters/8581)

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**Author:** [@hripat](https://discourse.slicer.org/u/hripat)\
**Replies:** 1\
**Last updated:** [October 2, 2019, 2:26am UTC](https://discourse.slicer.org/t/ultrasound-simulation-parameters/8581 "2019-10-02T02:26:29Z")

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Hi, Is there a way to change the Ultrasound simulation parameters? Do users have access to change these parameters on Slicer? Thank you!

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## [Easiest method of 3D modeling of a sacrum](https://discourse.slicer.org/t/easiest-method-of-3d-modeling-of-a-sacrum/8624)

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**Author:** [@mccarthyvetsurg](https://discourse.slicer.org/u/mccarthyvetsurg)\
**Replies:** 1\
**Last updated:** [October 2, 2019, 1:54am UTC](https://discourse.slicer.org/t/easiest-method-of-3d-modeling-of-a-sacrum/8624 "2019-10-02T01:54:22Z")

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Hello Slicer community! I am new to slicer and have been trying to isolate a sacrum from the rest of the pelvis and surrounding lumbar vertebra. Is there a better way to select the individual bone without including the…

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## [Tutorial on how to download simulated US data](https://discourse.slicer.org/t/tutorial-on-how-to-download-simulated-us-data/8628)

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**Author:** [@hripat](https://discourse.slicer.org/u/hripat)\
**Replies:** 1\
**Last updated:** [October 2, 2019, 1:46am UTC](https://discourse.slicer.org/t/tutorial-on-how-to-download-simulated-us-data/8628 "2019-10-02T01:46:55Z")

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Hi, Are there any tutorials on how to download the simulated ultrasound data from the Slicer application? Or does anybody know of the steps to download multiple scans from different transducer positions without taking a…

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## [How, through python, to reach or open Segmentation-Geometry-Widget dialog or set up parameters before opening a dialog?](https://discourse.slicer.org/t/how-through-python-to-reach-or-open-segmentation-geometry-widget-dialog-or-set-up-parameters-before-opening-a-dialog/8297)

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**Author:** [@aiden.zhu](https://discourse.slicer.org/u/aiden.zhu)\
**Replies:** 1\
**Last updated:** [October 2, 2019, 1:24am UTC](https://discourse.slicer.org/t/how-through-python-to-reach-or-open-segmentation-geometry-widget-dialog-or-set-up-parameters-before-opening-a-dialog/8297 "2019-10-02T01:24:07Z")

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Operating system: Slicer version: Expected behavior: Actual behavior: Hi all, how to open Segmentation-Geometry-Widget dialog inside the segment-editor? how to setup parameters? through python. I try this: geometr…

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## [How can i save multiple models as one file?](https://discourse.slicer.org/t/how-can-i-save-multiple-models-as-one-file/8620)

<div class="topic-metadata">

**Author:** [@Sukhe](https://discourse.slicer.org/u/Sukhe)\
**Replies:** 8\
**Last updated:** [October 2, 2019, 1:13am UTC](https://discourse.slicer.org/t/how-can-i-save-multiple-models-as-one-file/8620 "2019-10-02T01:13:50Z")

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I want to make a brain model with brain tissue, tumour, and ventricle. I have made these 3 models individually. But when I save them, they are saved as three separate files. How can I save (export) them as one stl or v…

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## [Dowload Extension](https://discourse.slicer.org/t/dowload-extension/8645)

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**Author:** [@LucasMD](https://discourse.slicer.org/u/LucasMD)\
**Replies:** 1\
**Last updated:** [October 1, 2019, 9:29pm UTC](https://discourse.slicer.org/t/dowload-extension/8645 "2019-10-01T21:29:44Z")

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Operating system: Mac Mojave 10.14.5 Slicer version:4.10.2 Expected behavior: Actual behavior: Hello. I have a problem when I try to download an extension. I join in extension manager and appear the following error: …

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## [Opening extension manager makes Slicer crash on Linux](https://discourse.slicer.org/t/opening-extension-manager-makes-slicer-crash-on-linux/7589)

<div class="topic-metadata">

**Author:** [@APF](https://discourse.slicer.org/u/APF)\
**Replies:** 27\
**Last updated:** [October 1, 2019, 5:08pm UTC](https://discourse.slicer.org/t/opening-extension-manager-makes-slicer-crash-on-linux/7589 "2019-10-01T17:08:56Z")

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Operating system: Linux 4.15.0-50-generic #54-Ubuntu SMP Mon May 6 18:46:08 UTC 2019 Slicer version: Slicer-4.10.2-linux-amd64 This problem occurs when I try to open the extension manager by clicking the button “Instal…

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## [What are the necessary DICOM header fields for import into 3D Slicer?](https://discourse.slicer.org/t/what-are-the-necessary-dicom-header-fields-for-import-into-3d-slicer/8637)

<div class="topic-metadata">

**Author:** [@stevenagl12](https://discourse.slicer.org/u/stevenagl12)\
**Replies:** 1\
**Last updated:** [October 1, 2019, 4:38pm UTC](https://discourse.slicer.org/t/what-are-the-necessary-dicom-header-fields-for-import-into-3d-slicer/8637 "2019-10-01T16:38:37Z")

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I have output images that are numpy arrays. I am trying to convert them directly into DICOM images through the use of SimpleITK but I need to know what header fields are necessary to allow for them to be imported into Sl…

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