# How to make proper landmark folder

**URL:** <https://discourse.slicer.org/t/how-to-make-proper-landmark-folder/14104>\
**Category:** Support\
**Tags:** segmentation, markups-fiducials\
**Created:** [October 17, 2020, 6:33pm UTC](https://discourse.slicer.org/t/how-to-make-proper-landmark-folder/14104 "2020-10-17T18:33:53Z")\
**Posts on this page:** 1\
**Showing post:** 16

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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:** [October 23, 2020, 3:43pm UTC](https://discourse.slicer.org/t/how-to-make-proper-landmark-folder/14104/16 "2020-10-23T15:43:59Z")

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> [@lassoan](#):
>
> Running analysis on a json file should be as simple as on a csv file, because you can read it into a dataframe using a single line of code. For example, getting a table of control point labels and positions : using pandas ( `pip_install('pandas'); import pandas as pd` ):

We maintain SlicerMorph primarily for 3D landmark digitization and for basic shape analysis and visualization. Most of our users end up using R shape analysis packages for more complex analysis they want to do. It looks like, it is going to be fairly straightforward to read coordinates directly from Json as a data matrix like we currently do with fcsv. We will show it in our next user check-in (this week). But again, it will take time.

> [@lassoan](#):
>
> The main idea is that you can store all data in json (any number of markups, any metadata) and generate a table view from any parts of it, using a single line of code.

Does this mean, you guys are planning to switch to saving all markups generated in a scene to a single json file? Currently every node is saved as a distinct file. I would prefer keeping the current behavior.

Also I still do not see a [units tag in the json](https://discourse.slicer.org/t/add-unit-to-the-fcsv-header/13716/2).

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