# \#markups

**URL:** https://discourse.slicer.org/tag/markups/148.md

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

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## [Adding landmarks using Point List results in screen glitches](https://discourse.slicer.org/t/adding-landmarks-using-point-list-results-in-screen-glitches/47173)

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**Author:** [@thelobsternods](https://discourse.slicer.org/u/thelobsternods)\
**Replies:** 5\
**Last updated:** [June 8, 2026, 6:40pm UTC](https://discourse.slicer.org/t/adding-landmarks-using-point-list-results-in-screen-glitches/47173 "2026-06-08T18:40:49Z")

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We have been using the same protocol for adding landmarks to 3D models for years, but are suddenly experiencing issues with our established protocol. Specifically, we only have this problem after starting a new “point li…

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## [How to get the clicked markup node in the 3D view?](https://discourse.slicer.org/t/how-to-get-the-clicked-markup-node-in-the-3d-view/46937)

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**Author:** [@NogginBops](https://discourse.slicer.org/u/NogginBops)\
**Replies:** 4\
**Last updated:** [May 7, 2026, 2:31pm UTC](https://discourse.slicer.org/t/how-to-get-the-clicked-markup-node-in-the-3d-view/46937 "2026-05-07T14:31:35Z")

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Hi, I’m interested in knowing what node is selected/hovered by the mouse when the left mouse button is pressed. I’ve tried using the scene interactor and trying to use the vtk picker, but I’m not really able to get it …

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## [Hollow 2d markups in slice views](https://discourse.slicer.org/t/hollow-2d-markups-in-slice-views/45754)

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**Author:** [@TomOssability](https://discourse.slicer.org/u/TomOssability)\
**Replies:** 2\
**Last updated:** [January 13, 2026, 12:28am UTC](https://discourse.slicer.org/t/hollow-2d-markups-in-slice-views/45754 "2026-01-13T00:28:56Z")

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Hi, I understand support for 2D operations is limited due to this platform being mostly used for 3D tasks. However, I am developing a python extension that requires key point placement in single slice views, for which I …

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## [Include functionality of control point status in custom scripted module](https://discourse.slicer.org/t/include-functionality-of-control-point-status-in-custom-scripted-module/45658)

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**Author:** [@W.J.Heerink](https://discourse.slicer.org/u/W.J.Heerink)\
**Replies:** 6\
**Last updated:** [January 12, 2026, 4:34pm UTC](https://discourse.slicer.org/t/include-functionality-of-control-point-status-in-custom-scripted-module/45658 "2026-01-12T16:34:08Z")

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Hi, I really like the use of the control point status as it is implemented in the Markups module. I mainly use the functionality of the buttons in the column of the table to change the status of individual control points…

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## [What is the event to react to a point location being changed in a MarkupsNode/MarkupsLineNode?](https://discourse.slicer.org/t/what-is-the-event-to-react-to-a-point-location-being-changed-in-a-markupsnode-markupslinenode/45307)

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**Author:** [@Victor\_Wayne](https://discourse.slicer.org/u/Victor_Wayne)\
**Replies:** 3\
**Last updated:** [December 4, 2025, 10:34am UTC](https://discourse.slicer.org/t/what-is-the-event-to-react-to-a-point-location-being-changed-in-a-markupsnode-markupslinenode/45307 "2025-12-04T10:34:02Z")

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Hi, To react to a point location being changed in a MarkupsLineNode I’ve been using PointModifiedEvent and I am calling one function whenever the location of a point changes. However my callback function is being called…

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## [Annotation -\> Markups: disable line shading?](https://discourse.slicer.org/t/annotation-markups-disable-line-shading/44978)

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**Author:** [@codeling](https://discourse.slicer.org/u/codeling)\
**Replies:** 0\
**Last updated:** [November 6, 2025, 2:17pm UTC](https://discourse.slicer.org/t/annotation-markups-disable-line-shading/44978 "2025-11-06T14:17:52Z")

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Lines in the annotation module were rendered flat, i.e. without shading. The lines from the Markups module are now shaded by default. Is there a possibility to configure flat shading for these? I have searched, but curr…

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## [Compounded Markup for osteotomy](https://discourse.slicer.org/t/compounded-markup-for-osteotomy/44607)

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**Author:** [@Hans\_Peter](https://discourse.slicer.org/u/Hans_Peter)\
**Replies:** 2\
**Last updated:** [September 27, 2025, 3:12pm UTC](https://discourse.slicer.org/t/compounded-markup-for-osteotomy/44607 "2025-09-27T15:12:29Z")

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I want to perform a repeatable osteotomy with a certain shape using Slicer. Essentially I need a modified plane Markup, where the section crossing the bone is not simply horizontal, but for ex. a Z-shape pattern. As I am…

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## [Markups control Points 2D Views projections on Reformat Mode](https://discourse.slicer.org/t/markups-control-points-2d-views-projections-on-reformat-mode/44401)

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**Author:** [@sarafv](https://discourse.slicer.org/u/sarafv)\
**Replies:** 1\
**Last updated:** [September 10, 2025, 2:41pm UTC](https://discourse.slicer.org/t/markups-control-points-2d-views-projections-on-reformat-mode/44401 "2025-09-10T14:41:22Z")

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Hello, Following and correcting previous topic about hiding projections of control points, I’v juste realize that the problem with displayNode.SetSliceProjection happens only when 2D views are on Reformat Mode, the pro…

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## [Hidden seam placement](https://discourse.slicer.org/t/hidden-seam-placement/44253)

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**Author:** [@IanM63](https://discourse.slicer.org/u/IanM63)\
**Replies:** 1\
**Last updated:** [August 29, 2025, 2:36pm UTC](https://discourse.slicer.org/t/hidden-seam-placement/44253 "2025-08-29T14:36:54Z")

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Why is it not possible to hide the seam INSIDE the model ?

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## [how to manually edit part of a curve after automatic generation in 3d slicer?](https://discourse.slicer.org/t/how-to-manually-edit-part-of-a-curve-after-automatic-generation-in-3d-slicer/43650)

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**Author:** [@LJW](https://discourse.slicer.org/u/LJW)\
**Replies:** 2\
**Last updated:** [July 11, 2025, 4:12pm UTC](https://discourse.slicer.org/t/how-to-manually-edit-part-of-a-curve-after-automatic-generation-in-3d-slicer/43650 "2025-07-11T16:12:01Z")

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Hi, I’m currently doing research and not very familiar with 3D Slicer, so I’m posting my question here. I generated a curve using the following settings: Curve Type: Shortest distance on surface Model Node: Model Cost…

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## [Curve deviates or forms spikes when using Open Curve Markup Tool](https://discourse.slicer.org/t/curve-deviates-or-forms-spikes-when-using-open-curve-markup-tool/43654)

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**Author:** [@LJW](https://discourse.slicer.org/u/LJW)\
**Replies:** 0\
**Last updated:** [July 8, 2025, 12:46pm UTC](https://discourse.slicer.org/t/curve-deviates-or-forms-spikes-when-using-open-curve-markup-tool/43654 "2025-07-08T12:46:15Z")

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Hi, I’m using the Open Curve Markup Tool in 3D Slicer to create curves on a surface model, such as between the mesial and distal papilla of a tooth. To support this, I’m also calculating and visualizing minimum curvatur…

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## [Closed curve constrained to model surface jumps to weird locations](https://discourse.slicer.org/t/closed-curve-constrained-to-model-surface-jumps-to-weird-locations/43575)

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**Author:** [@cliftong](https://discourse.slicer.org/u/cliftong)\
**Replies:** 2\
**Last updated:** [July 2, 2025, 4:39pm UTC](https://discourse.slicer.org/t/closed-curve-constrained-to-model-surface-jumps-to-weird-locations/43575 "2025-07-02T16:39:31Z")

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Mac OSX Slicer 5.9.0-2025-04-25 I’m hoping to use a closed curve to make a new surface model from an existing model, but the closed curve behaves weirdly when I try to constrain it to the model surface. Based on previ…

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## [Making Markups and Exporting json in just one screen](https://discourse.slicer.org/t/making-markups-and-exporting-json-in-just-one-screen/43551)

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**Author:** [@Davi\_Pultrini](https://discourse.slicer.org/u/Davi_Pultrini)\
**Replies:** 1\
**Last updated:** [June 30, 2025, 7:32pm UTC](https://discourse.slicer.org/t/making-markups-and-exporting-json-in-just-one-screen/43551 "2025-06-30T19:32:04Z")

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Hello, I would like to build a module so that there is a screen where the person presses a button and the image loads, he makes the markings and presses a button to save the labels. But before doing the module, I want t…

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## [Display Glyph Size absolue](https://discourse.slicer.org/t/display-glyph-size-absolue/42300)

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**Author:** [@sarafv](https://discourse.slicer.org/u/sarafv)\
**Replies:** 2\
**Last updated:** [May 1, 2025, 4:53pm UTC](https://discourse.slicer.org/t/display-glyph-size-absolue/42300 "2025-05-01T16:53:44Z")

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Hello everybody, There is a way to set the display node glyph size as a physical length programmatically like pressing the button “absolue” in the Display Menu of Markups Module (see the attach)? When I set the size…

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## [Set the view perpendicular on each tooth](https://discourse.slicer.org/t/set-the-view-perpendicular-on-each-tooth/42636)

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**Author:** [@Yasser\_Ahmad](https://discourse.slicer.org/u/Yasser_Ahmad)\
**Replies:** 1\
**Last updated:** [April 21, 2025, 12:56pm UTC](https://discourse.slicer.org/t/set-the-view-perpendicular-on-each-tooth/42636 "2025-04-21T12:56:23Z")

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I have a 3D dental model which I can rotate in infinite directions and angles. But, I want to be able to set a view where I will be looking directly at the facial surface of each tooth What I’ve tried to do is: Draw …

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## [Adding a missing landmark to a mrk.json file ](https://discourse.slicer.org/t/adding-a-missing-landmark-to-a-mrk-json-file/42400)

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**Author:** [@grega](https://discourse.slicer.org/u/grega)\
**Replies:** 1\
**Last updated:** [April 3, 2025, 4:15am UTC](https://discourse.slicer.org/t/adding-a-missing-landmark-to-a-mrk-json-file/42400 "2025-04-03T04:15:46Z")

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I have a point on a bone that i’m landmarking that isn’t present on all the samples in my data set. To be able to run GPA+PCA analysis I need to have a consistent number of points for each sample, so is there a way I can…

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## [Disabling Surface Constraints Snap for Activated Markups Node](https://discourse.slicer.org/t/disabling-surface-constraints-snap-for-activated-markups-node/42182)

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**Author:** [@jhan1245](https://discourse.slicer.org/u/jhan1245)\
**Replies:** 3\
**Last updated:** [March 18, 2025, 11:11pm UTC](https://discourse.slicer.org/t/disabling-surface-constraints-snap-for-activated-markups-node/42182 "2025-03-18T23:11:15Z")

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Hi, I am currently using 3D Slicer 5.8.0 and developing scripted modules. As part of my work, I would like to know if there is an option to disable the automatic snapping to surface constraints when a Markups node is act…

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## [MDR software qualification or validation ](https://discourse.slicer.org/t/mdr-software-qualification-or-validation/41779)

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**Author:** [@LauraEnd](https://discourse.slicer.org/u/LauraEnd)\
**Replies:** 1\
**Last updated:** [February 19, 2025, 9:50pm UTC](https://discourse.slicer.org/t/mdr-software-qualification-or-validation/41779 "2025-02-19T21:50:03Z")

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Hi, I have used 3D slicer to evaluate the extension of a thermal treatment damage in soft tissue on CT and CBCT dicom datasets (the images were visualised and the data evaluated with markups tool). These data will be par…

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## [Warping estimated semilandmarks onto surface](https://discourse.slicer.org/t/warping-estimated-semilandmarks-onto-surface/41354)

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**Author:** [@stineblom](https://discourse.slicer.org/u/stineblom)\
**Replies:** 8\
**Last updated:** [February 5, 2025, 1:47pm UTC](https://discourse.slicer.org/t/warping-estimated-semilandmarks-onto-surface/41354 "2025-02-05T13:47:08Z")

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Hello! Using pseudoLMgenerator and ALPACA, I have produced 499 pseudolandmarks on a sample of scapulae from different species that cover the whole surface/shape. From these, I made an ancestral shape reconstruction (ASR…

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## [Closed surface area measurement going to 0](https://discourse.slicer.org/t/closed-surface-area-measurement-going-to-0/41299)

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**Author:** [@cgordon\_Slicer](https://discourse.slicer.org/u/cgordon_Slicer)\
**Replies:** 3\
**Last updated:** [January 29, 2025, 12:46pm UTC](https://discourse.slicer.org/t/closed-surface-area-measurement-going-to-0/41299 "2025-01-29T12:46:47Z")

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Hello! I’m trying to measure the surface areas of segmented muscle attachment sites using the Closed Curve (CC) Markups tool. However, whenever I trace too complex or too inwardly bending of a shape, its area automatica…

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## [Template for adult mice limb bones markups](https://discourse.slicer.org/t/template-for-adult-mice-limb-bones-markups/41073)

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**Author:** [@coco](https://discourse.slicer.org/u/coco)\
**Replies:** 1\
**Last updated:** [January 14, 2025, 4:55pm UTC](https://discourse.slicer.org/t/template-for-adult-mice-limb-bones-markups/41073 "2025-01-14T16:55:16Z")

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Dear all, I wondered if anyone has a set of landmarked limb bones (zeugopode/stylopode) in adult mice ? I have seen a video using a couple of hundred markups on a gorilla femur and some other published works with about …

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## [moving and reflecting an entire markup curve](https://discourse.slicer.org/t/moving-and-reflecting-an-entire-markup-curve/40690)

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**Author:** [@Elizabeth\_Miller](https://discourse.slicer.org/u/Elizabeth_Miller)\
**Replies:** 2\
**Last updated:** [December 15, 2024, 2:30am UTC](https://discourse.slicer.org/t/moving-and-reflecting-an-entire-markup-curve/40690 "2024-12-15T02:30:14Z")

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Hello: I have a case where the left tooth is broken but the right tooth is not. We want to approximate a landmark on the tip of the left tooth by making a curve on the unbroken tooth, cloning it and moving it to where t…

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## [Possible regression in events triggered by plane and ROI markups](https://discourse.slicer.org/t/possible-regression-in-events-triggered-by-plane-and-roi-markups/40474)

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**Author:** [@rfenioux](https://discourse.slicer.org/u/rfenioux)\
**Replies:** 5\
**Last updated:** [December 11, 2024, 2:31pm UTC](https://discourse.slicer.org/t/possible-regression-in-events-triggered-by-plane-and-roi-markups/40474 "2024-12-11T14:31:14Z")

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Hi all, I am encountering an inconsistent behavior regarding the handling of events for plane and ROI markups in the latest preview version of Slicer, comparing to the stable release (slicer 5.6.2) It seems that in the…

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## [Messed up semi-landmark names after resampling](https://discourse.slicer.org/t/messed-up-semi-landmark-names-after-resampling/39978)

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**Author:** [@Ruiqi-CUB](https://discourse.slicer.org/u/Ruiqi-CUB)\
**Replies:** 3\
**Last updated:** [November 7, 2024, 6:27pm UTC](https://discourse.slicer.org/t/messed-up-semi-landmark-names-after-resampling/39978 "2024-11-07T18:27:37Z")

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Hi all, I have a few CT scannings of shells, and I have reconstructed 3D meshes in stl format. I would like to use semi-landmarks to capture some curves, the do a PCA in R with geomorph. My slicer version is 5.6.2. I us…

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## [Rotate 3D subject while placing semilandmarks ](https://discourse.slicer.org/t/rotate-3d-subject-while-placing-semilandmarks/39976)

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**Author:** [@Ruiqi-CUB](https://discourse.slicer.org/u/Ruiqi-CUB)\
**Replies:** 3\
**Last updated:** [November 1, 2024, 6:42pm UTC](https://discourse.slicer.org/t/rotate-3d-subject-while-placing-semilandmarks/39976 "2024-11-01T18:42:34Z")

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I am using Slicer 5.6.2 on MacOS. I am working on 3D mesh file in stl format. I can’t see all the surface when placing semi-landmarks of a curve. Is there a way to rotate the subject WHILE placing semilandmarks? Right n…

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## [Lost ability to interact with closedCurves in preview](https://discourse.slicer.org/t/lost-ability-to-interact-with-closedcurves-in-preview/37134)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 7\
**Last updated:** [October 30, 2024, 9:11pm UTC](https://discourse.slicer.org/t/lost-ability-to-interact-with-closedcurves-in-preview/37134 "2024-10-30T21:11:02Z")

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In the latest previews, I cannot seem to highlight a curve by hovering over it, if the curve is drawn on a model. This breaks the ability to add points to the curve in selected regions. In the latest stable (5.6.2) this…

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## [Does the slicer have the ability to generate multi 3D volumes within the 3D slicer and operate it under specific limitations?](https://discourse.slicer.org/t/does-the-slicer-have-the-ability-to-generate-multi-3d-volumes-within-the-3d-slicer-and-operate-it-under-specific-limitations/39756)

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**Author:** [@Ming\_Lei](https://discourse.slicer.org/u/Ming_Lei)\
**Replies:** 1\
**Last updated:** [October 18, 2024, 6:23pm UTC](https://discourse.slicer.org/t/does-the-slicer-have-the-ability-to-generate-multi-3d-volumes-within-the-3d-slicer-and-operate-it-under-specific-limitations/39756 "2024-10-18T18:23:39Z")

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I’m working on an extension that requests that numerous 3D volumes be loaded or created and then moved toward MRI and CT volumes according to particular regulations. Because I need to record the transformation results in…

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## [Create a markup line after fiducial points being placed](https://discourse.slicer.org/t/create-a-markup-line-after-fiducial-points-being-placed/38402)

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**Author:** [@Kuan\_Yi\_Wang](https://discourse.slicer.org/u/Kuan_Yi_Wang)\
**Replies:** 0\
**Last updated:** [September 16, 2024, 7:40pm UTC](https://discourse.slicer.org/t/create-a-markup-line-after-fiducial-points-being-placed/38402 "2024-09-16T19:40:16Z")

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I am working on a Python extension and was wondering how I could first drop any amount of fiducial nodes and then connect them manually with a line while showing the measurement? Thank you so much.

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## [One control point out of many is read incorrectly into Slicer](https://discourse.slicer.org/t/one-control-point-out-of-many-is-read-incorrectly-into-slicer/38369)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 2\
**Last updated:** [September 13, 2024, 7:03pm UTC](https://discourse.slicer.org/t/one-control-point-out-of-many-is-read-incorrectly-into-slicer/38369 "2024-09-13T19:03:59Z")

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I have this mrk.json file that generated from our SlicerMorphR package. When this file is loaded into the scene, control point 121 (alignedPoints-121) points gets undefined (see the screenshot below). But it is defined …

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## [How to add "ellipse" based measurement in 2D using Python?](https://discourse.slicer.org/t/how-to-add-ellipse-based-measurement-in-2d-using-python/38261)

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**Author:** [@Saladi](https://discourse.slicer.org/u/Saladi)\
**Replies:** 2\
**Last updated:** [September 7, 2024, 11:30am UTC](https://discourse.slicer.org/t/how-to-add-ellipse-based-measurement-in-2d-using-python/38261 "2024-09-07T11:30:27Z")

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Hello Community, We are trying to make some measurements on Ultrasound data using ellipse. I have tried using various extensions but I was able to find ellipsoid only. I need an 2D ellipse markup preferably in Python, a…

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