# \#alpaca

**URL:** https://discourse.slicer.org/tag/alpaca/512.md

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## [Projecting surface landmarks on sample model to target model in ALPACA](https://discourse.slicer.org/t/projecting-surface-landmarks-on-sample-model-to-target-model-in-alpaca/48170)

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**Author:** [@JYTan](https://discourse.slicer.org/u/JYTan)\
**Replies:** 4\
**Last updated:** [September 15, 2026, 4:37pm UTC](https://discourse.slicer.org/t/projecting-surface-landmarks-on-sample-model-to-target-model-in-alpaca/48170 "2026-09-15T16:37:49Z")

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Hi, I am new user of 3D slicer. I have generated a template mesh and surface landmarks of orbital volume segmentation and wish to project same numbers of surface landmarks from the template model to a set of target model…

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## [Help transferring semi-landmarks to multiple specimens using ALPACA](https://discourse.slicer.org/t/help-transferring-semi-landmarks-to-multiple-specimens-using-alpaca/44919)

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**Author:** [@r\_dientes](https://discourse.slicer.org/u/r_dientes)\
**Replies:** 6\
**Last updated:** [October 31, 2025, 7:53pm UTC](https://discourse.slicer.org/t/help-transferring-semi-landmarks-to-multiple-specimens-using-alpaca/44919 "2025-10-31T19:53:46Z")

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Hi everyone, I’m working with a collection of archaeological human teeth (permanent canines) and I’m trying to transfer a set of semi-landmarks from a reference model to several specimens. Here’s my current workflow: …

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## [Problems with alpaca ](https://discourse.slicer.org/t/problems-with-alpaca/43461)

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**Author:** [@aventador17](https://discourse.slicer.org/u/aventador17)\
**Replies:** 6\
**Last updated:** [June 25, 2025, 1:35am UTC](https://discourse.slicer.org/t/problems-with-alpaca/43461 "2025-06-25T01:35:49Z")

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Hello, this is my first time using 3d slicer. I write to community 'cause I have had some problem with ALPACA, it does not run . The phyton console showes this: In the future np.bool will be defined as the correspondin…

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## [Opening ALPACA for the first time and stuck on "Installing ALPACA Python Packages...."](https://discourse.slicer.org/t/opening-alpaca-for-the-first-time-and-stuck-on-installing-alpaca-python-packages/43415)

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**Author:** [@jsguerra](https://discourse.slicer.org/u/jsguerra)\
**Replies:** 3\
**Last updated:** [June 19, 2025, 4:37pm UTC](https://discourse.slicer.org/t/opening-alpaca-for-the-first-time-and-stuck-on-installing-alpaca-python-packages/43415 "2025-06-19T16:37:40Z")

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I recently upgraded my SSD and re-installed Slicermorph and the ALPACA extension. I went ahead and tried to open ALPACA for the first time since the new install and I seem to be stuck in the “Installing ALPACA Python Pac…

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## [ALPACA problem: ModuleNotFoundError: No module named 'itk'](https://discourse.slicer.org/t/alpaca-problem-modulenotfounderror-no-module-named-itk/41335)

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**Author:** [@nightmare](https://discourse.slicer.org/u/nightmare)\
**Replies:** 5\
**Last updated:** [February 7, 2025, 1:46pm UTC](https://discourse.slicer.org/t/alpaca-problem-modulenotfounderror-no-module-named-itk/41335 "2025-02-07T13:46:11Z")

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Hi, how can I solve this problem? alpaca does not descend and does not open. Traceback (most recent call last): File “C:/Users/İhsanBeratKILIÇLI/AppData/Local/slicer.org/Slicer 5.6.2/slicer.org/Extensions-32448/Slicer…

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## [ALPACA stops at certain # of specimens](https://discourse.slicer.org/t/alpaca-stops-at-certain-of-specimens/40380)

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**Author:** [@stineblom](https://discourse.slicer.org/u/stineblom)\
**Replies:** 2\
**Last updated:** [November 28, 2024, 5:19pm UTC](https://discourse.slicer.org/t/alpaca-stops-at-certain-of-specimens/40380 "2024-11-28T17:19:53Z")

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Hi all! I hope you can help me - I am using ALPACA to produce semilandmark datasets for scapulae of 6 species, but I am experiencing a weird problem. All scapulae are mesh .ply and prepared in the same way. The first ti…

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## [Can I speed up ALPACA?](https://discourse.slicer.org/t/can-i-speed-up-alpaca/39914)

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**Author:** [@Chuan](https://discourse.slicer.org/u/Chuan)\
**Replies:** 5\
**Last updated:** [November 19, 2024, 1:01pm UTC](https://discourse.slicer.org/t/can-i-speed-up-alpaca/39914 "2024-11-19T13:01:36Z")

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Hi, I have around 7500 landmarks, and now I would like to use ALPACA to get other subjects’ landmarks. I have in total of 50 subjects, but the current problem is the processing is very slow and takes so long time for ev…