# Outer measurement technique to define bivalve morphological characteristics.

**URL:** <https://discourse.slicer.org/t/outer-measurement-technique-to-define-bivalve-morphological-characteristics/37329>\
**Category:** Support\
**Created:** [July 11, 2024, 6:02pm UTC](https://discourse.slicer.org/t/outer-measurement-technique-to-define-bivalve-morphological-characteristics/37329 "2024-07-11T18:02:25Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Tubesag](https://avatars.discourse-cdn.com/v4/letter/t/ad7895/32.png) [@Tubesag](https://discourse.slicer.org/u/Tubesag)\
**Post date:** [July 11, 2024, 6:02pm UTC](https://discourse.slicer.org/t/outer-measurement-technique-to-define-bivalve-morphological-characteristics/37329/1 "2024-07-11T18:02:25Z")

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Hi Slicer folks. I’m an aquatic ecologist looking for a detailed outer measurement technique that will produce the appropriate number of referenced measurements to accurately distinguish species with nuanced outer shell variation. See the attached 3d image for an example image. I have an app that will create a xyz output of multiple measurements (from what point I’m not sure) and am wondering if something similar could be achieved in Slicer with the benefit of having some control as to where the measurements originate from.

Any help would be much appreciated.  
-Tony

 ![three ridge 3d](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/f/7/f71fb9b6c1d3429cc5cdacc1a371a320bef28fb6.png)

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**Author:** ![muratmaga](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/muratmaga/32/3622_2.png) [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Post date:** [July 11, 2024, 6:14pm UTC](https://discourse.slicer.org/t/outer-measurement-technique-to-define-bivalve-morphological-characteristics/37329/2 "2024-07-11T18:14:45Z")

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Welcome to the slicer community. Markups tool in Slicer provide all sorts of measurement possibilities.

You can read our tutorial for it at: [Tutorials/Markups\_1 at main · SlicerMorph/Tutorials · GitHub](https://github.com/SlicerMorph/Tutorials/tree/main/Markups_1)

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/4/a/4afcd98961bbede931601040c8b5ffb95d3528b7.jpeg)