# Development

**URL:** https://discourse.slicer.org/c/dev/5.md?no_subcategories=false&page=95

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

**Page:** 96

---

## [Itk Filters in 3D slicer](https://discourse.slicer.org/t/itk-filters-in-3d-slicer/11078)

<div class="topic-metadata">

**Author:** [@loubna](https://discourse.slicer.org/u/loubna)\
**Replies:** 4\
**Last updated:** [April 12, 2020, 9:44pm UTC](https://discourse.slicer.org/t/itk-filters-in-3d-slicer/11078 "2020-04-12T21:44:42Z")

</div>

how can I use itk filters in 3D slicer. I’d like to know how can i use ITK package inside my c++ loadable module for 3d Slicer 4.10. How can I import it in 3d slicer Thank’s in advance

---

## [MRB File Format - Structure and Naming](https://discourse.slicer.org/t/mrb-file-format-structure-and-naming/10624)

<div class="topic-metadata">

**Author:** [@ArneGroskurth](https://discourse.slicer.org/u/ArneGroskurth)\
**Replies:** 16\
**Last updated:** [April 7, 2020, 5:11pm UTC](https://discourse.slicer.org/t/mrb-file-format-structure-and-naming/10624 "2020-04-07T17:11:45Z")

</div>

Hi there, is there any documentation for the \*.mrb file format? I would like to implement an interface to this format for another application but would ideally not have to reverse-engineer the format. And if there is …

---

## [vtkImageLabelOutline](https://discourse.slicer.org/t/vtkimagelabeloutline/10988)

<div class="topic-metadata">

**Author:** [@loubna](https://discourse.slicer.org/u/loubna)\
**Replies:** 11\
**Last updated:** [April 6, 2020, 6:50pm UTC](https://discourse.slicer.org/t/vtkimagelabeloutline/10988 "2020-04-06T18:50:50Z")

</div>

Hi, my question is when we apply vtkImageLabelOutline filter on labelMap means get the 2D contours of segmented slices or not?what is the difference between the 2d contours obtained from segmented slices and the results…

---

## [3D visualisation techniques from labelMap](https://discourse.slicer.org/t/3d-visualisation-techniques-from-labelmap/11002)

<div class="topic-metadata">

**Author:** [@loubna](https://discourse.slicer.org/u/loubna)\
**Replies:** 1\
**Last updated:** [April 6, 2020, 3:47am UTC](https://discourse.slicer.org/t/3d-visualisation-techniques-from-labelmap/11002 "2020-04-06T03:47:13Z")

</div>

Hi, Do you know some 3d visualisation methods to convert a label Map to 3d closed surface apart marching cubes. I need some suggestions according to your experiences please. Can you tell me some ideas or techniques ? T…

---

## [Mirroring a rotation around the axis for a transform node](https://discourse.slicer.org/t/mirroring-a-rotation-around-the-axis-for-a-transform-node/10997)

<div class="topic-metadata">

**Author:** [@Mik](https://discourse.slicer.org/u/Mik)\
**Replies:** 2\
**Last updated:** [April 5, 2020, 6:11pm UTC](https://discourse.slicer.org/t/mirroring-a-rotation-around-the-axis-for-a-transform-node/10997 "2020-04-05T18:11:53Z")

</div>

Is it possible to mirror a rotation around the axis in a simple way (not making negative specific elements of the matrix) for a transform node? For example the code: vtkMRMLLinearTransformNode\* gantryToFixedReferenceTr…

---

## [Qt for Python - Thoughts?](https://discourse.slicer.org/t/qt-for-python-thoughts/10978)

<div class="topic-metadata">

**Author:** [@jamesobutler](https://discourse.slicer.org/u/jamesobutler)\
**Replies:** 4\
**Last updated:** [April 3, 2020, 4:24pm UTC](https://discourse.slicer.org/t/qt-for-python-thoughts/10978 "2020-04-03T16:24:21Z")

</div>

Does anyone have opinions about Qt for Python for the Qt python bindings? I received a promotional email about it recently and briefly looked into it. It would I guess replace PythonQt. Some background is available at h…

---

## [Update ITK to f6c37d?](https://discourse.slicer.org/t/update-itk-to-f6c37d/10396)

<div class="topic-metadata">

**Author:** [@adamrankin](https://discourse.slicer.org/u/adamrankin)\
**Replies:** 4\
**Last updated:** [April 2, 2020, 6:13pm UTC](https://discourse.slicer.org/t/update-itk-to-f6c37d/10396 "2020-04-02T18:13:14Z")

</div>

@jcfr @lassoan @pieper (and anyone else you think might want to comment) SlicerOpenCV is broken with the update to ITKv5, and requires the fix Could this be either cherry picked or the branch advanced to this commit? …

---

## [How to change the Red View to coronal via code?](https://discourse.slicer.org/t/how-to-change-the-red-view-to-coronal-via-code/10973)

<div class="topic-metadata">

**Author:** [@Isobel\_Norris](https://discourse.slicer.org/u/Isobel_Norris)\
**Replies:** 1\
**Last updated:** [April 2, 2020, 3:55pm UTC](https://discourse.slicer.org/t/how-to-change-the-red-view-to-coronal-via-code/10973 "2020-04-02T15:55:26Z")

</div>

I want to change the red view to the coronal orientation. Is there a way to do this in the code?

---

## [FYI: Packages / extensions will be late today](https://discourse.slicer.org/t/fyi-packages-extensions-will-be-late-today/10958)

<div class="topic-metadata">

**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 1\
**Last updated:** [April 1, 2020, 2:24pm UTC](https://discourse.slicer.org/t/fyi-packages-extensions-will-be-late-today/10958 "2020-04-01T14:24:44Z")

</div>

Hi all: I have restarted the factory builds to pull in the SimpleITK fix for the ITK version update.

---

## [Which to choose: Crash or Build failure?](https://discourse.slicer.org/t/which-to-choose-crash-or-build-failure/10908)

<div class="topic-metadata">

**Author:** [@gcsharp](https://discourse.slicer.org/u/gcsharp)\
**Replies:** 5\
**Last updated:** [April 1, 2020, 3:22am UTC](https://discourse.slicer.org/t/which-to-choose-crash-or-build-failure/10908 "2020-04-01T03:22:23Z")

</div>

Hi all, This is on Debian buster (stable). If I set Slicer\_USE\_PYTHONQT\_WITH\_OPENSSL=ON, Slicer builds, but it crashes due to the popular OpenSSL version mismatch issue. If I set Slicer\_USE\_PYTHONQT\_WITH\_OPENSSL=OFF, …

---

## [Get the path for a scripted module](https://discourse.slicer.org/t/get-the-path-for-a-scripted-module/10933)

<div class="topic-metadata">

**Author:** [@ZiyunLiang](https://discourse.slicer.org/u/ZiyunLiang)\
**Replies:** 1\
**Last updated:** [March 31, 2020, 3:25pm UTC](https://discourse.slicer.org/t/get-the-path-for-a-scripted-module/10933 "2020-03-31T15:25:31Z")

</div>

Hi all, I load a scripted module to Slier by adding the module path to ‘Edit / Application settings’. I want to access the path of this module in my .py file because I want to load other files to Slicer in that path wi…

---

## [How to rotate a plane around an axis by an angle](https://discourse.slicer.org/t/how-to-rotate-a-plane-around-an-axis-by-an-angle/10890)

<div class="topic-metadata">

**Author:** [@siaeleni](https://discourse.slicer.org/u/siaeleni)\
**Replies:** 3\
**Last updated:** [March 31, 2020, 12:05am UTC](https://discourse.slicer.org/t/how-to-rotate-a-plane-around-an-axis-by-an-angle/10890 "2020-03-31T00:05:01Z")

</div>

Hello, I have a plane and I want to rotate that plane around an arbitrary axis by a specific angle.For my axis, I do have two points where I can define my axis A and B, and doesn’t start from the (0,0,0). I try to gene…

---

## [Commit message prefix](https://discourse.slicer.org/t/commit-message-prefix/10921)

<div class="topic-metadata">

**Author:** [@jcfr](https://discourse.slicer.org/u/jcfr)\
**Replies:** 0\
**Last updated:** [March 30, 2020, 10:21pm UTC](https://discourse.slicer.org/t/commit-message-prefix/10921 "2020-03-30T22:21:23Z")

</div>

As discussed in this issue, the DOC: prefix is now valid when writing commit message. The Commit Style Guide and the commit check have both been updated. For reference, here is the regex used to validate the commit ti…

---

## [Placing of models under a hiearchy](https://discourse.slicer.org/t/placing-of-models-under-a-hiearchy/8587)

<div class="topic-metadata">

**Author:** [@Amine](https://discourse.slicer.org/u/Amine)\
**Replies:** 6\
**Last updated:** [October 2, 2019, 6:26pm UTC](https://discourse.slicer.org/t/placing-of-models-under-a-hiearchy/8587 "2019-10-02T18:26:02Z")

</div>

Hi, i faced some problems while dealing with models that are under a hiearchy: How to get the absolute visibility of a model (since model.GetDisplayVisibility() will return 1 wether the hiearchy is set to visible or no…

---

## [Error when building the latest build (2020-03-25)](https://discourse.slicer.org/t/error-when-building-the-latest-build-2020-03-25/10858)

<div class="topic-metadata">

**Author:** [@Fangwen\_Zhai](https://discourse.slicer.org/u/Fangwen_Zhai)\
**Replies:** 5\
**Last updated:** [March 27, 2020, 8:06am UTC](https://discourse.slicer.org/t/error-when-building-the-latest-build-2020-03-25/10858 "2020-03-27T08:06:23Z")

</div>

I just tried building the latest code and got several errors. My building environment includes VS 2017, windows 10. After some searching, I found these errors are all related to itkv5 compatibility as listed below. Er…

---

## [Failed to build SlicerCustomAppTemplate](https://discourse.slicer.org/t/failed-to-build-slicercustomapptemplate/8810)

<div class="topic-metadata">

**Author:** [@rleguay](https://discourse.slicer.org/u/rleguay)\
**Replies:** 6\
**Last updated:** [October 18, 2019, 3:02pm UTC](https://discourse.slicer.org/t/failed-to-build-slicercustomapptemplate/8810 "2019-10-18T15:02:58Z")

</div>

Hi everyone, I tried to build a custom app using the great SlicerCustomAppTemplate on Windows 10 with Qt 5.12.4 and VS 2017 in 64 bits. I have Git and SVN installed (is SVN still required?). If I checked the option Sli…

---

## [Headless DICOM, loadSeriesByUID fails](https://discourse.slicer.org/t/headless-dicom-loadseriesbyuid-fails/8831)

<div class="topic-metadata">

**Author:** [@unnmdnwb3](https://discourse.slicer.org/u/unnmdnwb3)\
**Replies:** 6\
**Last updated:** [October 22, 2019, 1:02pm UTC](https://discourse.slicer.org/t/headless-dicom-loadseriesbyuid-fails/8831 "2019-10-22T13:02:21Z")

</div>

Hi everyone, I’m trying to load DICOM files to scene (within a headless CI-pipeline) by using DICOMUtils.loadSeriesByUID, as linked here. However, trying to load the scene fails, although no error is thrown. Importi…

---

## [SimpleITK install error on mac](https://discourse.slicer.org/t/simpleitk-install-error-on-mac/9829)

<div class="topic-metadata">

**Author:** [@pieper](https://discourse.slicer.org/u/pieper)\
**Replies:** 11\
**Last updated:** [January 16, 2020, 9:47pm UTC](https://discourse.slicer.org/t/simpleitk-install-error-on-mac/9829 "2020-01-16T21:47:26Z")

</div>

I’m getting this error currently. I tried deleting all SimpleITK directories and rebuilding but I hit the same thing. When I have a chance I’ll try a completely clean build tree, but for now I’ll turn of SimpleITK in m…

---

## [additionalLauncherSettings.ini missing](https://discourse.slicer.org/t/additionallaunchersettings-ini-missing/9985)

<div class="topic-metadata">

**Author:** [@rbahegne](https://discourse.slicer.org/u/rbahegne)\
**Replies:** 6\
**Last updated:** [February 5, 2020, 3:28pm UTC](https://discourse.slicer.org/t/additionallaunchersettings-ini-missing/9985 "2020-02-05T15:28:27Z")

</div>

Hello six month ago i developped an extension. I used the 3d Slicer source version of 25/07/2019. A collegue of mine tried to compile and launch it. He took the lastest stable 3D Slicer source. He manage to compile it a…

---

## [Undo/Redo question](https://discourse.slicer.org/t/undo-redo-question/10216)

<div class="topic-metadata">

**Author:** [@Davide\_Punzo](https://discourse.slicer.org/u/Davide_Punzo)\
**Replies:** 2\
**Last updated:** [February 20, 2020, 7:35am UTC](https://discourse.slicer.org/t/undo-redo-question/10216 "2020-02-20T07:35:06Z")

</div>

Hi all, I just wanted to ask if there are plans/news regarding the Undo/Redo mechanism respect to Roadmap. Is there also a wiki page that explain/summarize the current mechanism (I could not find in the developer manua…

---

## [Slicer switches to UTF-8 everywhere](https://discourse.slicer.org/t/slicer-switches-to-utf-8-everywhere/10374)

<div class="topic-metadata">

**Author:** [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Replies:** 0\
**Last updated:** [February 21, 2020, 4:05am UTC](https://discourse.slicer.org/t/slicer-switches-to-utf-8-everywhere/10374 "2020-02-21T04:05:16Z")

</div>

Following VTK, ITK, and most other software, with this commit, Slicer switches to “UTF-8 everywhere”. This will make it possible to load files that have special character in their names, use special characters in node na…

---

## [How can I disable automatic reset of camera clipping range?](https://discourse.slicer.org/t/how-can-i-disable-automatic-reset-of-camera-clipping-range/10839)

<div class="topic-metadata">

**Author:** [@mikebind](https://discourse.slicer.org/u/mikebind)\
**Replies:** 4\
**Last updated:** [March 26, 2020, 8:09pm UTC](https://discourse.slicer.org/t/how-can-i-disable-automatic-reset-of-camera-clipping-range/10839 "2020-03-26T20:09:29Z")

</div>

I am working on some endoscopic type visualizations where the camera is often quite close to surfaces (models or volume renderings). These are automatically removed because they are too close to the camera’s close clipp…

---

## [Error while building 3D Slicer](https://discourse.slicer.org/t/error-while-building-3d-slicer/10846)

<div class="topic-metadata">

**Author:** [@alankrutha](https://discourse.slicer.org/u/alankrutha)\
**Replies:** 1\
**Last updated:** [March 26, 2020, 1:47pm UTC](https://discourse.slicer.org/t/error-while-building-3d-slicer/10846 "2020-03-26T13:47:11Z")

</div>

Hi Team, I’m facing issue while compiling 3d Slicer source code. Gave make and below are last 30 lines of compilation log. \[ 81%\] Built target SimpleITK\_ITKImageFunction \[ 81%\] Building CXX object Code/BasicFilters/s…

---

## [Python wrapping on the new external vtkAddon](https://discourse.slicer.org/t/python-wrapping-on-the-new-external-vtkaddon/10826)

<div class="topic-metadata">

**Author:** [@RafaelPalomar](https://discourse.slicer.org/u/RafaelPalomar)\
**Replies:** 2\
**Last updated:** [March 25, 2020, 2:42pm UTC](https://discourse.slicer.org/t/python-wrapping-on-the-new-external-vtkaddon/10826 "2020-03-25T14:42:32Z")

</div>

Hello. I like very much the idea of having vtkAddon as a separated project as introduced in aaf75e2aaa. In this logic, one can think about vtkAddon being a dependency of Slicer --this helps e.g., supporting the idea of …

---

## [Hide radio button or collapsible item slice](https://discourse.slicer.org/t/hide-radio-button-or-collapsible-item-slice/10817)

<div class="topic-metadata">

**Author:** [@Tokai](https://discourse.slicer.org/u/Tokai)\
**Replies:** 12\
**Last updated:** [March 25, 2020, 1:39pm UTC](https://discourse.slicer.org/t/hide-radio-button-or-collapsible-item-slice/10817 "2020-03-25T13:39:40Z")

</div>

Hi , I want to hide some option for use, in slicer shown in below. This is from Landmark registration module. Technically it should be possible to hide or show any part of the module. I have seen an example given in…

---

## [Simple way to disable Data Probe for some modules](https://discourse.slicer.org/t/simple-way-to-disable-data-probe-for-some-modules/10544)

<div class="topic-metadata">

**Author:** [@giovform](https://discourse.slicer.org/u/giovform)\
**Replies:** 3\
**Last updated:** [March 25, 2020, 8:45am UTC](https://discourse.slicer.org/t/simple-way-to-disable-data-probe-for-some-modules/10544 "2020-03-25T08:45:34Z")

</div>

What would a good way to disable the Data Probe for some specific modules? Is there a utility function for that? Thank you!

---

## [Issue 4766: misuse of vtkMRMLInteractionNode::EndPlacementEvent](https://discourse.slicer.org/t/issue-4766-misuse-of-vtkmrmlinteractionnode-endplacementevent/10822)

<div class="topic-metadata">

**Author:** [@Fangwen\_Zhai](https://discourse.slicer.org/u/Fangwen_Zhai)\
**Replies:** 1\
**Last updated:** [March 25, 2020, 3:40am UTC](https://discourse.slicer.org/t/issue-4766-misuse-of-vtkmrmlinteractionnode-endplacementevent/10822 "2020-03-25T03:40:07Z")

</div>

I think there’s a bug in the master version of void vtkMRMLInteractionNode::SetCurrentInteractionMode ( int mode ), see the issue for details

---

## [Import data automatically to a volume node from a folder using command line](https://discourse.slicer.org/t/import-data-automatically-to-a-volume-node-from-a-folder-using-command-line/10753)

<div class="topic-metadata">

**Author:** [@Tokai](https://discourse.slicer.org/u/Tokai)\
**Replies:** 9\
**Last updated:** [March 24, 2020, 8:00pm UTC](https://discourse.slicer.org/t/import-data-automatically-to-a-volume-node-from-a-folder-using-command-line/10753 "2020-03-24T20:00:16Z")

</div>

Operating system: win10 Slicer version: 4.10.2 Expected behavior: Actual behavior: Hi, I have two folders containing .IMA files. I want to load them automatically into slicer using the folder paths and then perform…

---

## [Handle Markups events from an external module](https://discourse.slicer.org/t/handle-markups-events-from-an-external-module/6332)

<div class="topic-metadata">

**Author:** [@mirclem](https://discourse.slicer.org/u/mirclem)\
**Replies:** 27\
**Last updated:** [March 24, 2020, 12:19pm UTC](https://discourse.slicer.org/t/handle-markups-events-from-an-external-module/6332 "2020-03-24T12:19:13Z")

</div>

Hi, I noticed there is a massive work in progress on the markups widget which affects some modules using markups interaction. As the markup position is now previewed when hovering a slice, “PointAddedEvent” is triggered…

---

## [Transition to GitHub](https://discourse.slicer.org/t/transition-to-github/10358)

<div class="topic-metadata">

**Author:** [@jcfr](https://discourse.slicer.org/u/jcfr)\
**Replies:** 32\
**Last updated:** [March 24, 2020, 5:26am UTC](https://discourse.slicer.org/t/transition-to-github/10358 "2020-03-24T05:26:53Z")

</div>

Here is a preview of what will be the final GitHub repository hosting Slicer sources: https://github.com/jcfr/Slicer-Git Update: Preview repository has been removed. Sources are now available at https://github.com/Slic…

[Previous page](https://discourse.slicer.org/c/dev/5.md?no_subcategories=false&page=94)

[Next page](https://discourse.slicer.org/c/dev/5.md?no_subcategories=false&page=96)