# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=238

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

**Page:** 239

---

## [Question about robotic simulation in VR](https://discourse.slicer.org/t/question-about-robotic-simulation-in-vr/21871)

<div class="topic-metadata">

**Author:** [@user5](https://discourse.slicer.org/u/user5)\
**Replies:** 9\
**Last updated:** [February 16, 2022, 3:27am UTC](https://discourse.slicer.org/t/question-about-robotic-simulation-in-vr/21871 "2022-02-16T03:27:40Z")

</div>

I am trying to use a robotic model to do needle insertion. It may include robotic simulation and transform. I would like to show and operate in SlicerVR which use the VR controller to control the robotic simulation and t…

---

## [Teeth CT and segmentation](https://discourse.slicer.org/t/teeth-ct-and-segmentation/21968)

<div class="topic-metadata">

**Author:** [@ManiaFG](https://discourse.slicer.org/u/ManiaFG)\
**Replies:** 2\
**Last updated:** [February 16, 2022, 2:51am UTC](https://discourse.slicer.org/t/teeth-ct-and-segmentation/21968 "2022-02-16T02:51:08Z")

</div>

Hello. I would ask for some help with teeth segmentation in slicer. I have a CT of the teeth, I need to segment each tooth. Now I select a tooth, and paint it on each slice. How can i speed up selection?

---

## [Error while trying to work with Slicelet](https://discourse.slicer.org/t/error-while-trying-to-work-with-slicelet/21984)

<div class="topic-metadata">

**Author:** [@Kawtar\_Lakrad](https://discourse.slicer.org/u/Kawtar_Lakrad)\
**Replies:** 0\
**Last updated:** [February 15, 2022, 9:30pm UTC](https://discourse.slicer.org/t/error-while-trying-to-work-with-slicelet/21984 "2022-02-15T21:30:28Z")

</div>

Operating system: Windows 11 Slicer version: 4.13 Expected behavior: Show Slicelet = prompt a new window Actual behavior: error

---

## [How to create Markups Point List template with GUI](https://discourse.slicer.org/t/how-to-create-markups-point-list-template-with-gui/20870)

<div class="topic-metadata">

**Author:** [@jamesobutler](https://discourse.slicer.org/u/jamesobutler)\
**Replies:** 15\
**Last updated:** [February 15, 2022, 8:20pm UTC](https://discourse.slicer.org/t/how-to-create-markups-point-list-template-with-gui/20870 "2022-02-15T20:20:08Z")

</div>

How do I create a Markups Point List template using the Slicer GUI? For the template, I want it to be a template where there are templated control point names, but no coordinate positions yet defined. Is there a way to a…

---

## [Ruler in (orthographic) 3D view](https://discourse.slicer.org/t/ruler-in-orthographic-3d-view/4656)

<div class="topic-metadata">

**Author:** [@stephan](https://discourse.slicer.org/u/stephan)\
**Replies:** 25\
**Last updated:** [February 15, 2022, 7:47pm UTC](https://discourse.slicer.org/t/ruler-in-orthographic-3d-view/4656 "2022-02-15T19:47:53Z")

</div>

Operating system: Win 7 64 bit Slicer version: 4.10.0 Expected behavior: Ruler button in 3D view inserts ruler into (orthographic) 3D view Actual behaviour: Neither “thin” nor “thick” ruler makes a ruler appear. The …

---

## [How to display the blended colors in the view of 'volume rendering'?](https://discourse.slicer.org/t/how-to-display-the-blended-colors-in-the-view-of-volume-rendering/18804)

<div class="topic-metadata">

**Author:** [@CharlesChen](https://discourse.slicer.org/u/CharlesChen)\
**Replies:** 19\
**Last updated:** [February 15, 2022, 7:24pm UTC](https://discourse.slicer.org/t/how-to-display-the-blended-colors-in-the-view-of-volume-rendering/18804 "2022-02-15T19:24:25Z")

</div>

Hello, I am using the ‘volume rendering’ module of Slicer to visualize the image data of a cell composed of red and green channels. The rendering method I chose is: ‘VTK GPU Ray Casting’ However, as shown in Figure 1,…

---

## [Default format and compress](https://discourse.slicer.org/t/default-format-and-compress/21732)

<div class="topic-metadata">

**Author:** [@Benoit](https://discourse.slicer.org/u/Benoit)\
**Replies:** 5\
**Last updated:** [February 15, 2022, 3:58pm UTC](https://discourse.slicer.org/t/default-format-and-compress/21732 "2022-02-15T15:58:56Z")

</div>

Hi I used 3d slicer to segment organs and I’m here because of 2 questions : I want to change the default format of 3d model in ply and not vtk I want to unset compress option instead of doing it manually. I don’t kno…

---

## [problem of importing .ply files](https://discourse.slicer.org/t/problem-of-importing-ply-files/21972)

<div class="topic-metadata">

**Author:** [@J\_Jang](https://discourse.slicer.org/u/J_Jang)\
**Replies:** 4\
**Last updated:** [February 15, 2022, 3:38pm UTC](https://discourse.slicer.org/t/problem-of-importing-ply-files/21972 "2022-02-15T15:38:51Z")

</div>

Hello. My name is Jang. Recently, I used the 3D slicer and Auto3dgm with 3D images of the human teeth. 3D images are laser-scanned 3D images and the file format is ply and stl. I tried to import the ply file (I clicke…

---

## [3D slicer using Jupyter notebook on cloud](https://discourse.slicer.org/t/3d-slicer-using-jupyter-notebook-on-cloud/21827)

<div class="topic-metadata">

**Author:** [@kianoosh\_kargar](https://discourse.slicer.org/u/kianoosh_kargar)\
**Replies:** 2\
**Last updated:** [February 15, 2022, 2:34pm UTC](https://discourse.slicer.org/t/3d-slicer-using-jupyter-notebook-on-cloud/21827 "2022-02-15T14:34:14Z")

</div>

I found that I couldn’t install 3D slicer on my local pc, but I am able to run it on binder from here: But I want to know that is there any tutorial for using 3D Slicer in a jupyter notebook? Is there any difference be…

---

## [Volume rendering shows grayscale even if RGB dicom is loaded](https://discourse.slicer.org/t/volume-rendering-shows-grayscale-even-if-rgb-dicom-is-loaded/21977)

<div class="topic-metadata">

**Author:** [@rasunag27](https://discourse.slicer.org/u/rasunag27)\
**Replies:** 0\
**Last updated:** [February 15, 2022, 10:46am UTC](https://discourse.slicer.org/t/volume-rendering-shows-grayscale-even-if-rgb-dicom-is-loaded/21977 "2022-02-15T10:46:18Z")

</div>

Dear all, I have loaded 'RGB" dicom file into 3D slicer. The axial, coronal and sagittal views show RGB rendered slices. But the volume rendering shows ‘Gray scale’ volume. I check with Volumes tab in the slicer and tri…

---

## [Segment cannot be hidden by eye icon off](https://discourse.slicer.org/t/segment-cannot-be-hidden-by-eye-icon-off/21969)

<div class="topic-metadata">

**Author:** [@kyoto](https://discourse.slicer.org/u/kyoto)\
**Replies:** 2\
**Last updated:** [February 14, 2022, 11:11pm UTC](https://discourse.slicer.org/t/segment-cannot-be-hidden-by-eye-icon-off/21969 "2022-02-14T23:11:25Z")

</div>

Operating system:windows10 Slicer version:4.11 Expected behavior:The segment can be not display by eye icon close. Actual behavior:The segment can,t be not displya by eye icon close. All segments eye icons were clos…

---

## [Importing a 3d Segmentation from Matlab into 3d Slicer](https://discourse.slicer.org/t/importing-a-3d-segmentation-from-matlab-into-3d-slicer/21966)

<div class="topic-metadata">

**Author:** [@Nicolas\_Weber](https://discourse.slicer.org/u/Nicolas_Weber)\
**Replies:** 0\
**Last updated:** [February 14, 2022, 8:55pm UTC](https://discourse.slicer.org/t/importing-a-3d-segmentation-from-matlab-into-3d-slicer/21966 "2022-02-14T20:55:12Z")

</div>

Hey, I segmented the head of a femur bone in matlab with the help of the Volume Segmenter App. Now I am trying to import the segmentation into 3d Slice to segment it further. The problem is that the alignment of the S…

---

## [Ultrasound and CT Fusion(manual)](https://discourse.slicer.org/t/ultrasound-and-ct-fusion-manual/21964)

<div class="topic-metadata">

**Author:** [@Young\_Wang](https://discourse.slicer.org/u/Young_Wang)\
**Replies:** 0\
**Last updated:** [February 14, 2022, 7:32pm UTC](https://discourse.slicer.org/t/ultrasound-and-ct-fusion-manual/21964 "2022-02-14T19:32:26Z")

</div>

Hi there, I recently started a project focusing on multimodal imaging modality co-registration using 3Dslicer, specifically ultrasound and CT. From the initial literature review I conducted, the exact procedure seems to …

---

## [Low-Pass High-Pass Filters](https://discourse.slicer.org/t/low-pass-high-pass-filters/21958)

<div class="topic-metadata">

**Author:** [@Effand](https://discourse.slicer.org/u/Effand)\
**Replies:** 0\
**Last updated:** [February 14, 2022, 2:25pm UTC](https://discourse.slicer.org/t/low-pass-high-pass-filters/21958 "2022-02-14T14:25:43Z")

</div>

Hi All, I am working on vessel segmentation for my ultrasound images, I have tried VMTK but it didn’t work so now I am annotating the vessels manually and to eliminate the high noise signal for sharper and finer detailed…

---

## [Problems to build 3DSlicer in Ubuntu 20.04](https://discourse.slicer.org/t/problems-to-build-3dslicer-in-ubuntu-20-04/21933)

<div class="topic-metadata">

**Author:** [@shahrokh](https://discourse.slicer.org/u/shahrokh)\
**Replies:** 2\
**Last updated:** [February 14, 2022, 5:15am UTC](https://discourse.slicer.org/t/problems-to-build-3dslicer-in-ubuntu-20-04/21933 "2022-02-14T05:15:04Z")

</div>

Hello Dear Developers and Users I want to build Slicer on Ubuntu 20.04 as mentioned in “GNU/Linux systems — 3D Slicer documentation”. My system sn@sn:~$ uname --all Linux sn 5.13.0-28-generic #31~20.04.1-Ubuntu SMP W…

---

## [Segmitor editor  printing when prints to slice come to the next slice so distribute the segmentation ](https://discourse.slicer.org/t/segmitor-editor-printing-when-prints-to-slice-come-to-the-next-slice-so-distribute-the-segmentation/21945)

<div class="topic-metadata">

**Author:** [@mohkhan](https://discourse.slicer.org/u/mohkhan)\
**Replies:** 4\
**Last updated:** [February 14, 2022, 12:42am UTC](https://discourse.slicer.org/t/segmitor-editor-printing-when-prints-to-slice-come-to-the-next-slice-so-distribute-the-segmentation/21945 "2022-02-14T00:42:04Z")

</div>

Segmitor editor printing when prints to slice come to the next slice so distribute the segmentation

---

## [Weird Error but everything looks okay](https://discourse.slicer.org/t/weird-error-but-everything-looks-okay/21939)

<div class="topic-metadata">

**Author:** [@NoobForSlicer](https://discourse.slicer.org/u/NoobForSlicer)\
**Replies:** 2\
**Last updated:** [February 13, 2022, 1:47pm UTC](https://discourse.slicer.org/t/weird-error-but-everything-looks-okay/21939 "2022-02-13T13:47:53Z")

</div>

I get this error but the models and segmentations I imported look really good… Is there something wrong? SetConversionParameter: Conversion parameter ‘Default slice thickness’ not found in converter rules!

---

## [Is it possible to perform this kind of slicing (attached below) for 3D data generated from multiple slices?](https://discourse.slicer.org/t/is-it-possible-to-perform-this-kind-of-slicing-attached-below-for-3d-data-generated-from-multiple-slices/21937)

<div class="topic-metadata">

**Author:** [@hdyk](https://discourse.slicer.org/u/hdyk)\
**Replies:** 3\
**Last updated:** [February 13, 2022, 1:42pm UTC](https://discourse.slicer.org/t/is-it-possible-to-perform-this-kind-of-slicing-attached-below-for-3d-data-generated-from-multiple-slices/21937 "2022-02-13T13:42:15Z")

</div>

Hello. I am creating a 3D dataset from multiple slices I obtained from measurement. The generated 3D dataset has a shape similar to a ball. I was able to slice the dataset and see the inside in X and Y direction. My q…

---

## [How to change default color (red) of line markup](https://discourse.slicer.org/t/how-to-change-default-color-red-of-line-markup/21916)

<div class="topic-metadata">

**Author:** [@Osman\_Basri\_Erbek](https://discourse.slicer.org/u/Osman_Basri_Erbek)\
**Replies:** 2\
**Last updated:** [February 13, 2022, 1:05pm UTC](https://discourse.slicer.org/t/how-to-change-default-color-red-of-line-markup/21916 "2022-02-13T13:05:31Z")

</div>

Hi, I want to change “default line markup color and default glyph size”. ı have 3000 measurement files, and when ı started measurement lines is coming "red and thin and little gylph ", i want to change this default sett…

---

## [How to programmatically use zoom in and zoom out to properly adjust the volume size of the 3D view?](https://discourse.slicer.org/t/how-to-programmatically-use-zoom-in-and-zoom-out-to-properly-adjust-the-volume-size-of-the-3d-view/21886)

<div class="topic-metadata">

**Author:** [@user4](https://discourse.slicer.org/u/user4)\
**Replies:** 4\
**Last updated:** [February 13, 2022, 5:32am UTC](https://discourse.slicer.org/t/how-to-programmatically-use-zoom-in-and-zoom-out-to-properly-adjust-the-volume-size-of-the-3d-view/21886 "2022-02-13T05:32:31Z")

</div>

Dear all, Here is the thing I want to do, thank you in advance for any possible help! With Slicer 4.11,I am using capture screenshot module to record my volume slice along the P-A orientation. By default, I take a 3D …

---

## [Saving resliced images from an ultrasound volume](https://discourse.slicer.org/t/saving-resliced-images-from-an-ultrasound-volume/21900)

<div class="topic-metadata">

**Author:** [@askaderd](https://discourse.slicer.org/u/askaderd)\
**Replies:** 1\
**Last updated:** [February 12, 2022, 5:12pm UTC](https://discourse.slicer.org/t/saving-resliced-images-from-an-ultrasound-volume/21900 "2022-02-12T17:12:38Z")

</div>

Hi there, I’d like to reslice an ultrasound volume at coordinates defined by given transforms (this is so that I can feed in optical tracking data to reslice the ultrasound volume). I initially tried the Volume Reslice …

---

## [how to make construct trabecular images?](https://discourse.slicer.org/t/how-to-make-construct-trabecular-images/21907)

<div class="topic-metadata">

**Author:** [@jhchoi](https://discourse.slicer.org/u/jhchoi)\
**Replies:** 1\
**Last updated:** [February 12, 2022, 5:09pm UTC](https://discourse.slicer.org/t/how-to-make-construct-trabecular-images/21907 "2022-02-12T17:09:27Z")

</div>

Operating system:windows 11 Slicer version:4.11 Expected behavior: Actual behavior: I want to make mouse 3d trabecular image using 3d slicer how to invasive bone area? puple area is need

---

## [Error when loading MRB](https://discourse.slicer.org/t/error-when-loading-mrb/21890)

<div class="topic-metadata">

**Author:** [@bcolbert](https://discourse.slicer.org/u/bcolbert)\
**Replies:** 9\
**Last updated:** [February 11, 2022, 7:40pm UTC](https://discourse.slicer.org/t/error-when-loading-mrb/21890 "2022-02-11T19:40:31Z")

</div>

I repeatedly receive the following error when loading an MRB I saved yesterday evening. Amy support would be helpful: Slicer has caught an application error, please save your work and restart. If you have a repeatable…

---

## [Unable to launch Slicer QT on Arch Linux](https://discourse.slicer.org/t/unable-to-launch-slicer-qt-on-arch-linux/21896)

<div class="topic-metadata">

**Author:** [@tsims](https://discourse.slicer.org/u/tsims)\
**Replies:** 6\
**Last updated:** [February 11, 2022, 3:53pm UTC](https://discourse.slicer.org/t/unable-to-launch-slicer-qt-on-arch-linux/21896 "2022-02-11T15:53:45Z")

</div>

Hello, I recently updated to the newest pre-release of slicer, 4.13-2022-02-09 r30598, but for some reason, I am no longer able to access QT designer, when launching it I get the errors below: Designer: The class attrib…

---

## [Export DICOM with RBG colours](https://discourse.slicer.org/t/export-dicom-with-rbg-colours/21892)

<div class="topic-metadata">

**Author:** [@lidia](https://discourse.slicer.org/u/lidia)\
**Replies:** 3\
**Last updated:** [February 11, 2022, 3:39pm UTC](https://discourse.slicer.org/t/export-dicom-with-rbg-colours/21892 "2022-02-11T15:39:18Z")

</div>

Hi, I’m working with MRI brain images, and i have segmented a structure, with the Segment Editor module, (colour: green), how can i add this segmentation to the original image, without losing the green colour? It’s tha…

---

## [Reading a Linear Transform using scripting while openigtl server keeps sending transform messages](https://discourse.slicer.org/t/reading-a-linear-transform-using-scripting-while-openigtl-server-keeps-sending-transform-messages/21879)

<div class="topic-metadata">

**Author:** [@srivastavava](https://discourse.slicer.org/u/srivastavava)\
**Replies:** 3\
**Last updated:** [February 11, 2022, 3:31pm UTC](https://discourse.slicer.org/t/reading-a-linear-transform-using-scripting-while-openigtl-server-keeps-sending-transform-messages/21879 "2022-02-11T15:31:00Z")

</div>

Hi, I have a linear transform that I receive from a OpenIGTL Server. I am using the openigtlinkIF module to receive this transform in 3d slicer. I want to read the transform message and place a fiducial by extracting th…

---

## [Access Dicom metadata dialog](https://discourse.slicer.org/t/access-dicom-metadata-dialog/21868)

<div class="topic-metadata">

**Author:** [@Shahnawaz\_Vora](https://discourse.slicer.org/u/Shahnawaz_Vora)\
**Replies:** 3\
**Last updated:** [February 11, 2022, 5:12am UTC](https://discourse.slicer.org/t/access-dicom-metadata-dialog/21868 "2022-02-11T05:12:05Z")

</div>

Operating system: Windows 11 Slicer version: 4.13 I am looking to access DICOM tag(metadata) display dialog by using button. Currently we are the same operation by right click on database. How can I access ctkBrowser…

---

## [slicer.modules.markups.logic().AddNewFiducialNode() does not work in preview release](https://discourse.slicer.org/t/slicer-modules-markups-logic-addnewfiducialnode-does-not-work-in-preview-release/21902)

<div class="topic-metadata">

**Author:** [@koeglfryderyk](https://discourse.slicer.org/u/koeglfryderyk)\
**Replies:** 3\
**Last updated:** [February 11, 2022, 12:42am UTC](https://discourse.slicer.org/t/slicer-modules-markups-logic-addnewfiducialnode-does-not-work-in-preview-release/21902 "2022-02-11T00:42:39Z")

</div>

slicer.modules.markups.logic().AddNewFiducialNode(“test\_fid\_node”) does not work in the nightly build 4.13.0-2022-02-06. When this line of code is executed ‘’ (empty string) is returned. It works in the stable release 4…

---

## [Fill the holes(Closing) isn't working](https://discourse.slicer.org/t/fill-the-holes-closing-isnt-working/21887)

<div class="topic-metadata">

**Author:** [@jo1](https://discourse.slicer.org/u/jo1)\
**Replies:** 2\
**Last updated:** [February 10, 2022, 11:22am UTC](https://discourse.slicer.org/t/fill-the-holes-closing-isnt-working/21887 "2022-02-10T11:22:54Z")

</div>

Hi I used local threshold in order to get artery. It works well but there are some holes… So I also used Smoothing after this process but it doesn’t work. (it isn’t working, actually. but in this case, doesn;t work a…

---

## [Unable to import Dicom data](https://discourse.slicer.org/t/unable-to-import-dicom-data/21893)

<div class="topic-metadata">

**Author:** [@Giovanni\_Cunha](https://discourse.slicer.org/u/Giovanni_Cunha)\
**Replies:** 2\
**Last updated:** [February 10, 2022, 3:22pm UTC](https://discourse.slicer.org/t/unable-to-import-dicom-data/21893 "2022-02-10T15:22:15Z")

</div>

Dear all Currently, I cannot import dicom data. The slicer (version 4.13) displays a message: “0 patients, 0 instances, 0 series” I tried out to open the same folder in Invesalius and it worked well. What would cause …

[Previous page](https://discourse.slicer.org/c/support/11.md?page=237)

[Next page](https://discourse.slicer.org/c/support/11.md?page=239)