# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=442

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

**Page:** 443

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## [Keep position and orientation of segmentation when saving](https://discourse.slicer.org/t/keep-position-and-orientation-of-segmentation-when-saving/963)

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**Author:** [@amewes](https://discourse.slicer.org/u/amewes)\
**Replies:** 3\
**Last updated:** [August 30, 2017, 11:23am UTC](https://discourse.slicer.org/t/keep-position-and-orientation-of-segmentation-when-saving/963 "2017-08-30T11:23:13Z")

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Operating system: Win 10 Slicer version: Current Nightly Expected behavior: surface model from segmentation should be in correct position with respect to volume Actual behavior: surface model from segmentation is shif…

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## [Improve an existing segmentation](https://discourse.slicer.org/t/improve-an-existing-segmentation/964)

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**Author:** [@Hanaana](https://discourse.slicer.org/u/Hanaana)\
**Replies:** 0\
**Last updated:** [August 28, 2017, 6:32pm UTC](https://discourse.slicer.org/t/improve-an-existing-segmentation/964 "2017-08-28T18:32:21Z")

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Hello Everyone!! I have got this femur STL as you can see its not smooth nor well determined. Can yu please let me know how i can make it better

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## [Issue with VTK leaks](https://discourse.slicer.org/t/issue-with-vtk-leaks/954)

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**Author:** [@stevenagl12](https://discourse.slicer.org/u/stevenagl12)\
**Replies:** 20\
**Last updated:** [August 28, 2017, 8:03pm UTC](https://discourse.slicer.org/t/issue-with-vtk-leaks/954 "2017-08-28T20:03:58Z")

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So I am running the Slicer nightly build from August 22nd and having an issue where I cannot load mrml or mrb files. The loading bar stops at 99% and remains there for days afterwards. I’m using a desktop computer with 3…

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## [STL of a 2d surface](https://discourse.slicer.org/t/stl-of-a-2d-surface/945)

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**Author:** [@brhoom](https://discourse.slicer.org/u/brhoom)\
**Replies:** 6\
**Last updated:** [August 28, 2017, 3:58pm UTC](https://discourse.slicer.org/t/stl-of-a-2d-surface/945 "2017-08-28T15:58:06Z")

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Dear all, I have a png image loaded to slicer and segmented. When I try generate the model using Model Maker I get this error: Model Maker standard error: The volume is not 3D. Image data extents: 0 511 0 361 0 0 Wh…

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## [Fill Between Slices Missing?](https://discourse.slicer.org/t/fill-between-slices-missing/957)

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**Author:** [@Daniel](https://discourse.slicer.org/u/Daniel)\
**Replies:** 2\
**Last updated:** [August 28, 2017, 12:53pm UTC](https://discourse.slicer.org/t/fill-between-slices-missing/957 "2017-08-28T12:53:38Z")

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I am running Slicer 4.6.2 on Windows 10. I can use the “Draw” tool to generate parallel 2D segments, but the “Fill Between Slices” tool does not show up in the “Effects” panel as described in the “readthedocs” page. Is t…

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## [Major slice scrolling performance degradation with volume rendering on](https://discourse.slicer.org/t/major-slice-scrolling-performance-degradation-with-volume-rendering-on/938)

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**Author:** [@fedorov](https://discourse.slicer.org/u/fedorov)\
**Replies:** 6\
**Last updated:** [August 25, 2017, 1:46pm UTC](https://discourse.slicer.org/t/major-slice-scrolling-performance-degradation-with-volume-rendering-on/938 "2017-08-25T13:46:06Z")

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There appears to be order of magnitude (from ~15 ms/frame to ~150 ms/frame) degradation in slice scrolling performance when volume rendering is enabled (slice is not shown in 3d view). See demo in this screencast: https…

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## [Download page inconsistent with CDash](https://discourse.slicer.org/t/download-page-inconsistent-with-cdash/947)

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**Author:** [@fedorov](https://discourse.slicer.org/u/fedorov)\
**Replies:** 2\
**Last updated:** [August 25, 2017, 1:11pm UTC](https://discourse.slicer.org/t/download-page-inconsistent-with-cdash/947 "2017-08-25T13:11:52Z")

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Slicer download page points to an older nightly package for Mac. The package downloaded directly from CDash corresponds to the latest revision.

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## [Why dentists, surceons and other doctors use DICOM and not STL?](https://discourse.slicer.org/t/why-dentists-surceons-and-other-doctors-use-dicom-and-not-stl/937)

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**Author:** [@j.avdeev](https://discourse.slicer.org/u/j.avdeev)\
**Replies:** 1\
**Last updated:** [August 24, 2017, 6:15pm UTC](https://discourse.slicer.org/t/why-dentists-surceons-and-other-doctors-use-dicom-and-not-stl/937 "2017-08-24T18:15:45Z")

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Hello. Does anyone know the reasons - why doctors use DICOM viewers for analysis and diagnosis. In respect that during this analysis doctor need to create some surfaces, lines, measure angles between lines and between …

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## [DWI convent errors](https://discourse.slicer.org/t/dwi-convent-errors/899)

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**Author:** [@Jin](https://discourse.slicer.org/u/Jin)\
**Replies:** 9\
**Last updated:** [August 24, 2017, 3:02pm UTC](https://discourse.slicer.org/t/dwi-convent-errors/899 "2017-08-24T15:02:05Z")

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Operating system:windows 10 Slicer version:4.7.0 Expected behavior: DTI datas convent Actual behavior: errors Diffusion-weighted DICOM Import (DWIConvert) standard error: The errors was described as follows: Can’t …

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## [Unable to open Slicer package on Mac](https://discourse.slicer.org/t/unable-to-open-slicer-package-on-mac/932)

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**Author:** [@fedorov](https://discourse.slicer.org/u/fedorov)\
**Replies:** 1\
**Last updated:** [August 23, 2017, 5:46pm UTC](https://discourse.slicer.org/t/unable-to-open-slicer-package-on-mac/932 "2017-08-23T17:46:34Z")

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I downloaded today’s nightly package, but when I click on the .dmg file, nothing happens - the volume is not mounted. I searched around, and the only reason I can see is that download was corrupted in the process. I com…

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## [Time Stamp information missing in NifTI header data](https://discourse.slicer.org/t/time-stamp-information-missing-in-nifti-header-data/921)

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**Author:** [@Diana\_Anthony](https://discourse.slicer.org/u/Diana_Anthony)\
**Replies:** 6\
**Last updated:** [August 23, 2017, 9:31pm UTC](https://discourse.slicer.org/t/time-stamp-information-missing-in-nifti-header-data/921 "2017-08-23T21:31:41Z")

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Operating system: Windows 10, 64 bit Slicer version: 3D Slicer 4.6.2 I am working with Philips cardiac ultrasound scans and would like to gain information about interesting slices from using their .nii header and readi…

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## [Label Selection](https://discourse.slicer.org/t/label-selection/591)

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**Author:** [@LGG](https://discourse.slicer.org/u/LGG)\
**Replies:** 5\
**Last updated:** [August 23, 2017, 2:04pm UTC](https://discourse.slicer.org/t/label-selection/591 "2017-08-23T14:04:30Z")

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Hi everyone, in Slicer 4.6.2 I can not find Fiber bundle label select in the Module-list. Since I want to do tractography between two labels or a label and a model I wanted to ask how I know the number of the label I w…

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## [Problem of retrieve(query work but retrieve dead)](https://discourse.slicer.org/t/problem-of-retrieve-query-work-but-retrieve-dead/929)

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**Author:** [@Ningrong\_Ye](https://discourse.slicer.org/u/Ningrong_Ye)\
**Replies:** 0\
**Last updated:** [August 23, 2017, 4:31am UTC](https://discourse.slicer.org/t/problem-of-retrieve-query-work-but-retrieve-dead/929 "2017-08-23T04:31:01Z")

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Hi all, I’m using Redhat7, installed Slicer-4.7.0-2017-08-16-linux-amd64 Here is my problem, I try to query from our hospital’s server. I work, I can get all patients data. But, I can’t retrieve any from the server.…

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## [Comparing Label maps: nrrd, nii and .mat](https://discourse.slicer.org/t/comparing-label-maps-nrrd-nii-and-mat/912)

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**Author:** [@mwelch](https://discourse.slicer.org/u/mwelch)\
**Replies:** 2\
**Last updated:** [August 22, 2017, 8:27pm UTC](https://discourse.slicer.org/t/comparing-label-maps-nrrd-nii-and-mat/912 "2017-08-22T20:27:44Z")

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Hi! I would like to qualitatively compare binary label maps generated from RTStruct files by visualizing them in 3D Slicer. I have three different formats: .nrrd, .nii and .mat. The .nrrd and .nii files were generated i…

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## [Strange occurances on load and Timeout](https://discourse.slicer.org/t/strange-occurances-on-load-and-timeout/914)

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**Author:** [@stevenagl12](https://discourse.slicer.org/u/stevenagl12)\
**Replies:** 1\
**Last updated:** [August 21, 2017, 8:54pm UTC](https://discourse.slicer.org/t/strange-occurances-on-load-and-timeout/914 "2017-08-21T20:54:29Z")

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I have todays nightly build downloaded onto my computer and the command window for the system keeps saying: Traceback (most recent call last): File “”, line 1, in File “C:/Users/salewis/AppData/Roaming/NA-MIC/Extensi…

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## [Blood Vessels (HELP)](https://discourse.slicer.org/t/blood-vessels-help/892)

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**Author:** [@Fefe](https://discourse.slicer.org/u/Fefe)\
**Replies:** 5\
**Last updated:** [August 18, 2017, 3:41pm UTC](https://discourse.slicer.org/t/blood-vessels-help/892 "2017-08-18T15:41:22Z")

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Hi Guys, I know that there are a lot of topics but I’ve been trying to segment blood vessels. I’ve been trying to segment liver vessels, coronary artery and aorta for one week nonstop but I’am unsuccessful. I would like …

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## [Four/Eight Neighbor Morphology Effects in Segment Editor](https://discourse.slicer.org/t/four-eight-neighbor-morphology-effects-in-segment-editor/889)

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**Author:** [@moselhy](https://discourse.slicer.org/u/moselhy)\
**Replies:** 1\
**Last updated:** [August 17, 2017, 6:53pm UTC](https://discourse.slicer.org/t/four-eight-neighbor-morphology-effects-in-segment-editor/889 "2017-08-17T18:53:43Z")

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I find that Segment Editor’s Margin effect does not achieve the same job as Editor’s “Four Neighbor” erode effect. What resources would be useful to implement a tool where the user selects neighbor type and erode/dilate …

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## [Apply reformat reslicing](https://discourse.slicer.org/t/apply-reformat-reslicing/887)

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**Author:** [@Prashant\_Pandey](https://discourse.slicer.org/u/Prashant_Pandey)\
**Replies:** 1\
**Last updated:** [August 17, 2017, 1:39pm UTC](https://discourse.slicer.org/t/apply-reformat-reslicing/887 "2017-08-17T13:39:35Z")

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What is the easiest way to resample a volume after applying the desired slice angle using the reformat widget? This page recommends using the python console - is this still the best way?

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## [AXIAL, CORONAL, SAGITAL, Slice Views - VTK model alignment Issue](https://discourse.slicer.org/t/axial-coronal-sagital-slice-views-vtk-model-alignment-issue/854)

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**Author:** [@kitlu\_s](https://discourse.slicer.org/u/kitlu_s)\
**Replies:** 6\
**Last updated:** [August 17, 2017, 1:32pm UTC](https://discourse.slicer.org/t/axial-coronal-sagital-slice-views-vtk-model-alignment-issue/854 "2017-08-17T13:32:52Z")

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Hello, Trying to load test.nrrd which consists of 3 slice views and 3d model test.vtk in 3d view which is developed using threejs. Issue when I am loading nrrd( 3 slices) file bone structure is not matching with vtk mod…

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## [Cloud version for 3D Slicer](https://discourse.slicer.org/t/cloud-version-for-3d-slicer/860)

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**Author:** [@hamedtopic](https://discourse.slicer.org/u/hamedtopic)\
**Replies:** 7\
**Last updated:** [August 16, 2017, 2:12pm UTC](https://discourse.slicer.org/t/cloud-version-for-3d-slicer/860 "2017-08-16T14:12:16Z")

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Hi Is there any way for me to work with my datasets right from my iPad?!

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## [Tractography color display from ASCII .vtk Polydata](https://discourse.slicer.org/t/tractography-color-display-from-ascii-vtk-polydata/871)

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**Author:** [@bartbols](https://discourse.slicer.org/u/bartbols)\
**Replies:** 7\
**Last updated:** [August 16, 2017, 5:44am UTC](https://discourse.slicer.org/t/tractography-color-display-from-ascii-vtk-polydata/871 "2017-08-16T05:44:05Z")

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Hi, I’m trying to visualize some fibre tracts in 3D slicer form a ASCII vtkPolydata file that I generate through Matlab. The file reads in well and displays the fibres in the correct position, however, I cannot assign c…

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## [How to open a file as a LabelMap from command line?](https://discourse.slicer.org/t/how-to-open-a-file-as-a-labelmap-from-command-line/876)

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**Author:** [@Valerie\_Sydnor](https://discourse.slicer.org/u/Valerie_Sydnor)\
**Replies:** 6\
**Last updated:** [August 15, 2017, 8:02pm UTC](https://discourse.slicer.org/t/how-to-open-a-file-as-a-labelmap-from-command-line/876 "2017-08-15T20:02:26Z")

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Operating system: Linux Slicer version: 4.5.0 Expected behavior: LabelMap file will open as a Volume with “LabelMap” checked in Volume Information, and will appear as Current LabelMapVolume in the display Actual behav…

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## [Faster registration](https://discourse.slicer.org/t/faster-registration/872)

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**Author:** [@moselhy](https://discourse.slicer.org/u/moselhy)\
**Replies:** 3\
**Last updated:** [August 15, 2017, 7:13pm UTC](https://discourse.slicer.org/t/faster-registration/872 "2017-08-15T19:13:41Z")

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How do I get my multivolume sequence to register faster? It is taking approx. 3 min and 2 seconds for the original volume sequence of spacing 1.95,1.95,1.95 and approx. 2 min 50 seconds for a downsampled volume sequence…

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## [How to get number of points in a model](https://discourse.slicer.org/t/how-to-get-number-of-points-in-a-model/874)

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**Author:** [@iplneurosurgery](https://discourse.slicer.org/u/iplneurosurgery)\
**Replies:** 1\
**Last updated:** [August 15, 2017, 3:05pm UTC](https://discourse.slicer.org/t/how-to-get-number-of-points-in-a-model/874 "2017-08-15T15:05:07Z")

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## [DTI and DWI conversion tutorial](https://discourse.slicer.org/t/dti-and-dwi-conversion-tutorial/734)

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**Author:** [@iplneurosurgery](https://discourse.slicer.org/u/iplneurosurgery)\
**Replies:** 4\
**Last updated:** [July 23, 2017, 10:54am UTC](https://discourse.slicer.org/t/dti-and-dwi-conversion-tutorial/734 "2017-07-23T10:54:10Z")

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Hi Sir, We are using the slicer version of 4.6.2 and 4.7.0 in Windows 8. In DTI processing the input DWI volume which is downloaded from slicer dataset is supported in 4.6.2 and we are able to obtain the output in 4.6.2…

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## [Porting a transformation from Matlab to Slicer](https://discourse.slicer.org/t/porting-a-transformation-from-matlab-to-slicer/868)

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**Author:** [@Prashant\_Pandey](https://discourse.slicer.org/u/Prashant_Pandey)\
**Replies:** 2\
**Last updated:** [August 15, 2017, 3:56am UTC](https://discourse.slicer.org/t/porting-a-transformation-from-matlab-to-slicer/868 "2017-08-15T03:56:56Z")

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Operating system: Windows 10 Slicer version: 4.7 Expected behavior: Transformation to match registered and transformed image in Matlab Actual behavior: Transformation is off Hi, I am trying to double check the result…

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## [VTK failure and Segment Editor failure](https://discourse.slicer.org/t/vtk-failure-and-segment-editor-failure/847)

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**Author:** [@stevenagl12](https://discourse.slicer.org/u/stevenagl12)\
**Replies:** 5\
**Last updated:** [August 14, 2017, 1:41pm UTC](https://discourse.slicer.org/t/vtk-failure-and-segment-editor-failure/847 "2017-08-14T13:41:55Z")

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For some reason when I go to apply my newly created segmentation using the segment editor (mainly using fastmarching) the segment disappears and is irretrievable. In addition, I have gotten warnings about a VTK leak. I’…

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## [Edits Transferred to Multiple Files](https://discourse.slicer.org/t/edits-transferred-to-multiple-files/863)

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**Author:** [@KateOxley](https://discourse.slicer.org/u/KateOxley)\
**Replies:** 1\
**Last updated:** [August 14, 2017, 11:45am UTC](https://discourse.slicer.org/t/edits-transferred-to-multiple-files/863 "2017-08-14T11:45:02Z")

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Hi everyone, I wanted to make a major edit to a file I’m working on, so I saved two versions of my file in different folders. I edited one, but then the same edits were transferred to both files. I’ve had this problem b…

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## [Can I adjust the center of orientation when using 'transform module'?](https://discourse.slicer.org/t/can-i-adjust-the-center-of-orientation-when-using-transform-module/857)

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**Author:** [@Ramttoong](https://discourse.slicer.org/u/Ramttoong)\
**Replies:** 3\
**Last updated:** [August 11, 2017, 8:48pm UTC](https://discourse.slicer.org/t/can-i-adjust-the-center-of-orientation-when-using-transform-module/857 "2017-08-11T20:48:11Z")

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Casue I don’t know where the center of rotation is, I can’t predict the movement of them. (When using ‘transform module’)

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## [Set segmentation master volume from Python](https://discourse.slicer.org/t/set-segmentation-master-volume-from-python/851)

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**Author:** [@Colin\_McCurdy](https://discourse.slicer.org/u/Colin_McCurdy)\
**Replies:** 7\
**Last updated:** [August 10, 2017, 5:54pm UTC](https://discourse.slicer.org/t/set-segmentation-master-volume-from-python/851 "2017-08-10T17:54:02Z")

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I have a question related to this topic (sorry if I should have posted a new topic!) I am trying to auto-create segmentations from multiple master volumes using python, but when trying to do the second segmentation it h…

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