# Development

**URL:** https://discourse.slicer.org/c/dev/5.md?no_subcategories=false&page=104

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

**Page:** 105

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## [Disable specific modules on startup](https://discourse.slicer.org/t/disable-specific-modules-on-startup/8263)

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**Author:** [@dtan](https://discourse.slicer.org/u/dtan)\
**Replies:** 1\
**Last updated:** [September 2, 2019, 6:34pm UTC](https://discourse.slicer.org/t/disable-specific-modules-on-startup/8263 "2019-09-02T18:34:09Z")

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I’m trying to disable modules on startup using ./Slicer -modules-to-ignore "Welcome, data", but I notice that only the welcome module is disabled while data module is still present. Am I using this command incorrectly? A…

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## [How can I call Slicer.util.getNode function in cpp code?](https://discourse.slicer.org/t/how-can-i-call-slicer-util-getnode-function-in-cpp-code/8255)

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**Author:** [@JaceYang](https://discourse.slicer.org/u/JaceYang)\
**Replies:** 1\
**Last updated:** [September 2, 2019, 1:54pm UTC](https://discourse.slicer.org/t/how-can-i-call-slicer-util-getnode-function-in-cpp-code/8255 "2019-09-02T13:54:24Z")

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Hello,everyone: We can get node using Slicer.util.getNode in python console and scripted extensions.But how can I call this function in cpp code? I want to call the qMRMLThreeDView.resetFocalPoint when I click the Disp…

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## [Nightly 4.11.0-2019-8-30 fails to open on some Windows machines](https://discourse.slicer.org/t/nightly-4-11-0-2019-8-30-fails-to-open-on-some-windows-machines/8248)

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**Author:** [@mikebind](https://discourse.slicer.org/u/mikebind)\
**Replies:** 5\
**Last updated:** [September 1, 2019, 3:17pm UTC](https://discourse.slicer.org/t/nightly-4-11-0-2019-8-30-fails-to-open-on-some-windows-machines/8248 "2019-09-01T15:17:22Z")

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Yesterday I downloaded the Windows nightly build to one laptop and had no problems getting it up and running. Today, I tried to do the same with another laptop and it appeared to install correctly (i.e. the launcher shor…

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## [How to manipulate the orthographic view ruler in code](https://discourse.slicer.org/t/how-to-manipulate-the-orthographic-view-ruler-in-code/8238)

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**Author:** [@rat01](https://discourse.slicer.org/u/rat01)\
**Replies:** 2\
**Last updated:** [August 30, 2019, 2:30pm UTC](https://discourse.slicer.org/t/how-to-manipulate-the-orthographic-view-ruler-in-code/8238 "2019-08-30T14:30:12Z")

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How can I access this ruler in python? I’m trying to do things such as toggle its visibility and change its color and thickness. I know how to do all of these things from the pin menu, but I’d like to be able to control …

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## [Qt enum access from Slicer using Python?](https://discourse.slicer.org/t/qt-enum-access-from-slicer-using-python/8231)

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**Author:** [@mikebind](https://discourse.slicer.org/u/mikebind)\
**Replies:** 2\
**Last updated:** [August 29, 2019, 10:05pm UTC](https://discourse.slicer.org/t/qt-enum-access-from-slicer-using-python/8231 "2019-08-29T22:05:04Z")

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I’m working on a custom module and want to use a QTableWidget filled with QTableWidgetItems. I have that working, but as I work on it, I keep coming across Qt enums being used to set various policies or flags. For exam…

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## [Script to load specific modules](https://discourse.slicer.org/t/script-to-load-specific-modules/8224)

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**Author:** [@Todd\_G](https://discourse.slicer.org/u/Todd_G)\
**Replies:** 2\
**Last updated:** [August 29, 2019, 3:12pm UTC](https://discourse.slicer.org/t/script-to-load-specific-modules/8224 "2019-08-29T15:12:02Z")

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I remember posted somewhere on here (yes i searched, but cant seem to find the correct key words) an example code for the application start up script that basically made slicer a very light version. Would anyone have the…

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## [Slicer Docker images](https://discourse.slicer.org/t/slicer-docker-images/508)

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**Author:** [@jcfr](https://discourse.slicer.org/u/jcfr)\
**Replies:** 4\
**Last updated:** [August 29, 2019, 11:20am UTC](https://discourse.slicer.org/t/slicer-docker-images/508 "2019-08-29T11:20:56Z")

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Hi, Just to document that Slicer docker images are now rebuilt every night. This allow to keep working the CircleCI test checking that PR and commits pushed to Slicer code base are not breaking the built. See GitHub - …

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## [Slicelet Performance](https://discourse.slicer.org/t/slicelet-performance/8214)

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**Author:** [@burnhamd](https://discourse.slicer.org/u/burnhamd)\
**Replies:** 1\
**Last updated:** [August 28, 2019, 7:45pm UTC](https://discourse.slicer.org/t/slicelet-performance/8214 "2019-08-28T19:45:39Z")

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I have been working on a slicelet where I create my own “main window”. I originally decided to go this route so that I could define the UI in the QTDesigner. My UI diverges quite a bit from the default main window. Ho…

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## [3D Slicer source Build failed in Visual studio 2017 and 2013](https://discourse.slicer.org/t/3d-slicer-source-build-failed-in-visual-studio-2017-and-2013/5669)

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**Author:** [@smaatze](https://discourse.slicer.org/u/smaatze)\
**Replies:** 6\
**Last updated:** [August 28, 2019, 3:02pm UTC](https://discourse.slicer.org/t/3d-slicer-source-build-failed-in-visual-studio-2017-and-2013/5669 "2019-08-28T15:02:42Z")

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Hello i have a couple of week trying to build 3d slicer in visual studio 2017 and 2013. i tried qt v5.12 but it failed with so many errors. after that tried qt-4.8.7-x64-msvc2013 with vs 2013 x64 build, it was successfu…

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## [SegmentEditor - applying filter to non-visible segment, no feedback](https://discourse.slicer.org/t/segmenteditor-applying-filter-to-non-visible-segment-no-feedback/8153)

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**Author:** [@hherhold](https://discourse.slicer.org/u/hherhold)\
**Replies:** 2\
**Last updated:** [August 28, 2019, 1:48pm UTC](https://discourse.slicer.org/t/segmenteditor-applying-filter-to-non-visible-segment-no-feedback/8153 "2019-08-28T13:48:13Z")

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More than a few times, I’ve applied a filter (smoothing, etc) to a segment that I had accidentally selected but was not visible, and then thought that nothing had happened. What about a warning box saying that the filter…

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## [Required modifiers in terminology](https://discourse.slicer.org/t/required-modifiers-in-terminology/8197)

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**Author:** [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Replies:** 7\
**Last updated:** [August 28, 2019, 2:54am UTC](https://discourse.slicer.org/t/required-modifiers-in-terminology/8197 "2019-08-28T02:54:54Z")

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We would like to use terminologies correctly in NVidia’s AI segmentation plugin. However, the terminology json or logic does not seem to make sense. For example, I cannot create a segment for “spleen”. When I choose “Seg…

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## [Remove Interaction toolbar from QMRMLSliceWidget](https://discourse.slicer.org/t/remove-interaction-toolbar-from-qmrmlslicewidget/8011)

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**Author:** [@burnhamd](https://discourse.slicer.org/u/burnhamd)\
**Replies:** 10\
**Last updated:** [August 27, 2019, 2:20pm UTC](https://discourse.slicer.org/t/remove-interaction-toolbar-from-qmrmlslicewidget/8011 "2019-08-27T14:20:24Z")

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I would like to remove the toolbar from the qMRMLSliceWidget for a cleaner UI for a project I am working on. Is there a way to do this on the widget or should I display the slice by another method. For reference this i…

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## [Markups roadmap - Plane fiducial](https://discourse.slicer.org/t/markups-roadmap-plane-fiducial/8150)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 3\
**Last updated:** [August 26, 2019, 3:59pm UTC](https://discourse.slicer.org/t/markups-roadmap-plane-fiducial/8150 "2019-08-26T15:59:45Z")

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Hi all: per the roadmap, we are planning to add a plane fiducial type. Two questions: Is this intended to go into Slicer core? Is anyone working on it yet? I am trying to get the Osteotomy Planner updated for curren…

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## [Can I use a spherical brush to select the edges of a mesh in a three-dimensional window?](https://discourse.slicer.org/t/can-i-use-a-spherical-brush-to-select-the-edges-of-a-mesh-in-a-three-dimensional-window/8167)

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**Author:** [@timeanddoctor](https://discourse.slicer.org/u/timeanddoctor)\
**Replies:** 5\
**Last updated:** [August 25, 2019, 4:01pm UTC](https://discourse.slicer.org/t/can-i-use-a-spherical-brush-to-select-the-edges-of-a-mesh-in-a-three-dimensional-window/8167 "2019-08-25T16:01:02Z")

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Can I use a spherical brush to select the edges(mark the surface) of a mesh in a three-dimensional window?

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## [Rotate reformat slice view (in plane)](https://discourse.slicer.org/t/rotate-reformat-slice-view-in-plane/8127)

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**Author:** [@mikebind](https://discourse.slicer.org/u/mikebind)\
**Replies:** 5\
**Last updated:** [August 23, 2019, 11:02pm UTC](https://discourse.slicer.org/t/rotate-reformat-slice-view-in-plane/8127 "2019-08-23T23:02:40Z")

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I am working on adding some slice views in addition to the standard multiplanar views. For stereo EEG procedures for epilepsy patients, linear electrodes are inserted into the patient’s skull. The additional reformat v…

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## [OpenIGTlinkIF Transform references](https://discourse.slicer.org/t/openigtlinkif-transform-references/8097)

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**Author:** [@burnhamd](https://discourse.slicer.org/u/burnhamd)\
**Replies:** 9\
**Last updated:** [August 23, 2019, 6:16pm UTC](https://discourse.slicer.org/t/openigtlinkif-transform-references/8097 "2019-08-23T18:16:44Z")

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I am using openigtif extenstion to get streaming data from my tracker. Is there a way to get a reference to the transforms created by openigtif extenstion before they are created? I want a object to be set to a default…

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## [Build error with itk on ubuntu1804](https://discourse.slicer.org/t/build-error-with-itk-on-ubuntu1804/8107)

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**Author:** [@chenray844](https://discourse.slicer.org/u/chenray844)\
**Replies:** 2\
**Last updated:** [August 23, 2019, 6:27pm UTC](https://discourse.slicer.org/t/build-error-with-itk-on-ubuntu1804/8107 "2019-08-23T18:27:40Z")

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when I build slicer on ubuntu1804 with latest code, some error happens. \[ 74%\] Building C object Modules/ThirdParty/HDF5/src/itkhdf5/src/CMakeFiles/hdf5-shared.dir/\_\_/shared/H5Tinit.c.o In file included from /home/chenr…

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## [Select color lookup table from python](https://discourse.slicer.org/t/select-color-lookup-table-from-python/8145)

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**Author:** [@rogertrullo](https://discourse.slicer.org/u/rogertrullo)\
**Replies:** 1\
**Last updated:** [August 23, 2019, 4:49pm UTC](https://discourse.slicer.org/t/select-color-lookup-table-from-python/8145 "2019-08-23T16:49:27Z")

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Hi, I am displaying a label image in slicer using this two lines of code volumeNode = sitkUtils.PushVolumeToSlicer(anno\_itk, name='Annotations', className='vtkMRMLLabelMapVolumeNode') slicer.util.setSliceViewerLayers(b…

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## [Error when applying Medial surface in Segment Editor hollow effect (with possible fix)](https://discourse.slicer.org/t/error-when-applying-medial-surface-in-segment-editor-hollow-effect-with-possible-fix/8147)

<div class="topic-metadata">

**Author:** [@hherhold](https://discourse.slicer.org/u/hherhold)\
**Replies:** 3\
**Last updated:** [August 23, 2019, 3:41pm UTC](https://discourse.slicer.org/t/error-when-applying-medial-surface-in-segment-editor-hollow-effect-with-possible-fix/8147 "2019-08-23T15:41:19Z")

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I get an error when applying medial surface in hollow effect. The offending line is in SegmentEditorHollowEffect.py, line 157: kernelSizePixel = \[int(kernelSizePixel\[0\],2), int(kernelSizePixel\[1\],2), int(kernelSizePix…

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## [Anti Alias Model in Slice Display](https://discourse.slicer.org/t/anti-alias-model-in-slice-display/8134)

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**Author:** [@burnhamd](https://discourse.slicer.org/u/burnhamd)\
**Replies:** 1\
**Last updated:** [August 23, 2019, 3:24am UTC](https://discourse.slicer.org/t/anti-alias-model-in-slice-display/8134 "2019-08-23T03:24:25Z")

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I have a 3d model of a tool, which looks quite good in the 3D display, however the projection and intersectional views on the slice displays are pretty ugly as it seems the projections are not anti-aliased. Is there a w…

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## [Load dicom path in unicode](https://discourse.slicer.org/t/load-dicom-path-in-unicode/7365)

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**Author:** [@Mr.wyr](https://discourse.slicer.org/u/Mr.wyr)\
**Replies:** 2\
**Last updated:** [August 22, 2019, 9:41pm UTC](https://discourse.slicer.org/t/load-dicom-path-in-unicode/7365 "2019-08-22T21:41:10Z")

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i want to load dicom in chinese path, i change CTK source code,and set python defaultencoding to utf-8, now import chinese path is ok, examine is ok, but when click load button,some error: Loading with imageIOName: GDCM …

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## [No preview builds today: error with recent CTK update](https://discourse.slicer.org/t/no-preview-builds-today-error-with-recent-ctk-update/8133)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 7\
**Last updated:** [August 22, 2019, 7:54pm UTC](https://discourse.slicer.org/t/no-preview-builds-today-error-with-recent-ctk-update/8133 "2019-08-22T19:54:39Z")

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@jcfr http://slicer.cdash.org/viewBuildError.php?buildid=1675447 looking into it

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## [Extension python wrapping (python36\_d.lib not found)](https://discourse.slicer.org/t/extension-python-wrapping-python36-d-lib-not-found/8124)

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**Author:** [@adamrankin](https://discourse.slicer.org/u/adamrankin)\
**Replies:** 2\
**Last updated:** [August 21, 2019, 8:25pm UTC](https://discourse.slicer.org/t/extension-python-wrapping-python36-d-lib-not-found/8124 "2019-08-21T20:25:21Z")

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Hello all, Is it possible to use the release python built by debug Slicer to be used in extensions for wrapping? @jcfr @lassoan @pieper Cheers, Adam

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## [Running Elastix registration changes save location of "fixed" and "moving" volumes](https://discourse.slicer.org/t/running-elastix-registration-changes-save-location-of-fixed-and-moving-volumes/8093)

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**Author:** [@hbraunDSP](https://discourse.slicer.org/u/hbraunDSP)\
**Replies:** 1\
**Last updated:** [August 21, 2019, 4:40pm UTC](https://discourse.slicer.org/t/running-elastix-registration-changes-save-location-of-fixed-and-moving-volumes/8093 "2019-08-21T16:40:10Z")

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Hi everyone, I’ve been using the Elastix extension for some registrations, and it’s been working great. However, after running Elastix the volumes I selected for the “fixed” and “moving” volumes are by default saved as …

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## [The abnormal ModuleSelectorToolBar UI](https://discourse.slicer.org/t/the-abnormal-moduleselectortoolbar-ui/8103)

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**Author:** [@JaceYang](https://discourse.slicer.org/u/JaceYang)\
**Replies:** 1\
**Last updated:** [August 21, 2019, 4:17pm UTC](https://discourse.slicer.org/t/the-abnormal-moduleselectortoolbar-ui/8103 "2019-08-21T16:17:24Z")

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Hello everyone: I have modified the qSlicerModuleSelectorToolBar.cxx and the qSlicerModulesMenu.cxx.Then something strange happened. on some computers the UI is normal.And on some computers the UI is abnormal as this: …

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## [DICOM browser layout issues](https://discourse.slicer.org/t/dicom-browser-layout-issues/8106)

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**Author:** [@cpinter](https://discourse.slicer.org/u/cpinter)\
**Replies:** 9\
**Last updated:** [August 21, 2019, 3:24pm UTC](https://discourse.slicer.org/t/dicom-browser-layout-issues/8106 "2019-08-21T15:24:46Z")

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I found an issue with the new DICOM browser, and thought that we need a place to discuss these (from my experience there are always a few issues after major changes). Since the PR is closed, we can track the issues on Ma…

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## [T2 Signal intensity value from DWI image](https://discourse.slicer.org/t/t2-signal-intensity-value-from-dwi-image/8104)

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**Author:** [@fpsiddiqui91](https://discourse.slicer.org/u/fpsiddiqui91)\
**Replies:** 7\
**Last updated:** [August 21, 2019, 1:44pm UTC](https://discourse.slicer.org/t/t2-signal-intensity-value-from-dwi-image/8104 "2019-08-21T13:44:54Z")

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Hello Developers, I am developing an application for Diffusion weighted imaging. For some mathematical modeling I need the signal intensity value from DWI volume data. I just want to make sure If I load a DWI volume as…

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## [Slicer build fails on all platforms](https://discourse.slicer.org/t/slicer-build-fails-on-all-platforms/8058)

<div class="topic-metadata">

**Author:** [@cpinter](https://discourse.slicer.org/u/cpinter)\
**Replies:** 21\
**Last updated:** [August 20, 2019, 2:58pm UTC](https://discourse.slicer.org/t/slicer-build-fails-on-all-platforms/8058 "2019-08-20T14:58:19Z")

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Hi all, My clean Slicer builds failed, with undeterministic errors about CTK and/or ITK configuration. I checked and the dashboard shows failed build on all platforms http://slicer.cdash.org/index.php?project=SlicerPr…

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## [Using Dicom Module from Script](https://discourse.slicer.org/t/using-dicom-module-from-script/8048)

<div class="topic-metadata">

**Author:** [@burnhamd](https://discourse.slicer.org/u/burnhamd)\
**Replies:** 3\
**Last updated:** [August 19, 2019, 7:40pm UTC](https://discourse.slicer.org/t/using-dicom-module-from-script/8048 "2019-08-19T19:40:27Z")

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I would like to load the dicom browser in my slicelet. Is there an example of doing this? I am able to access the browser through slicer.modules.dicom.widgetRepresentation, but of course this is empty. I am assuming I…

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## [How to show models in certain views only](https://discourse.slicer.org/t/how-to-show-models-in-certain-views-only/8052)

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**Author:** [@SebastianE93](https://discourse.slicer.org/u/SebastianE93)\
**Replies:** 2\
**Last updated:** [August 16, 2019, 2:46pm UTC](https://discourse.slicer.org/t/how-to-show-models-in-certain-views-only/8052 "2019-08-16T14:46:09Z")

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Operating system: windows 10 Slicer version: 4.10.2 At Models Module, in the section of Visibility, how can I change the View to only Red, Yellow and Green for a ModelNode (with the python console)? As shown in the p…

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