# Chair Numbering Tags

**URL:** <https://forum.dynamobim.com/t/chair-numbering-tags/59797>\
**Category:** Revit\
**Tags:** revit, archi-lab, python, dynamo\
**Created:** [January 27, 2021, 6:46pm UTC](https://forum.dynamobim.com/t/chair-numbering-tags/59797 "2021-01-27T18:46:30Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![walid.espinosa](https://avatars.discourse-cdn.com/v4/letter/w/dc4da7/32.png) [@walid.espinosa](https://forum.dynamobim.com/u/walid.espinosa)\
**Post date:** [January 27, 2021, 6:46pm UTC](https://forum.dynamobim.com/t/chair-numbering-tags/59797/1 "2021-01-27T18:46:30Z")

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Hi All

i am trying to rest the order of the chair tags, is it possible to achieve that without using python nodes?

 ![Capture](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/7/0/7090ccab312d2103f5b5036db8143ed1d1f5ba6a.jpeg)

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**Author:** ![Joelmick](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/joelmick/32/93148_2.png) [@Joelmick](https://forum.dynamobim.com/u/Joelmick)\
**Post date:** [January 27, 2021, 7:12pm UTC](https://forum.dynamobim.com/t/chair-numbering-tags/59797/2 "2021-01-27T19:12:18Z")

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Hi,

The easiest way to do this is with a “Guide Curve” (A detail curve indicating how you want to renumber the chairs. I recommend to use a Detail Curve → Spline.

[SortAlongCurve.dyn](https://forum.dynamobim.com/uploads/short-url/nwGFFrk9ub6LhEySLxD3rKSJFSd.dyn) (27.3 KB)

 ![Untitled](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/3/d/3d2cc319841234eabc37045cbbff60b94c75b2af.png)

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<div class="post-metadata">

**Author:** ![walid.espinosa](https://avatars.discourse-cdn.com/v4/letter/w/dc4da7/32.png) [@walid.espinosa](https://forum.dynamobim.com/u/walid.espinosa)\
**Post date:** [January 27, 2021, 7:27pm UTC](https://forum.dynamobim.com/t/chair-numbering-tags/59797/3 "2021-01-27T19:27:40Z")

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Hi joelmick

First many thanks! but do you mean I have to draw the curve in Revit?

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<div class="post-metadata">

**Author:** ![Joelmick](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/joelmick/32/93148_2.png) [@Joelmick](https://forum.dynamobim.com/u/Joelmick)\
**Post date:** [January 27, 2021, 7:29pm UTC](https://forum.dynamobim.com/t/chair-numbering-tags/59797/4 "2021-01-27T19:29:12Z")

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Yes you need something to tell Dynamo how to renumber the chairs. What is did in the picture is that I drew a spline through the elements and dynamo sorts them along the curve.

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**Author:** ![Renzoj14](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/renzoj14/32/49196_2.png) [@Renzoj14](https://forum.dynamobim.com/u/Renzoj14)\
**Post date:** [January 27, 2021, 9:18pm UTC](https://forum.dynamobim.com/t/chair-numbering-tags/59797/5 "2021-01-27T21:18:20Z")

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Have you tried sorting the location of the chairs (points) in terms of Y then X? this method normally works if you the layout of the element follow a grid system?

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**Author:** ![Robert\_Younger](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/robert_younger/32/205603_2.png) [@Robert\_Younger](https://forum.dynamobim.com/u/Robert_Younger)\
**Post date:** [January 27, 2021, 9:21pm UTC](https://forum.dynamobim.com/t/chair-numbering-tags/59797/6 "2021-01-27T21:21:10Z")

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This is doable but requires some binning logic as there is the potential for Y-values to be near-identical but not truly identical (user error, or a weird room design, 17 and 18 in the image for instance are sliiiightly higher on the y-axis than their counterparts across the table)

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**Author:** ![walid.espinosa](https://avatars.discourse-cdn.com/v4/letter/w/dc4da7/32.png) [@walid.espinosa](https://forum.dynamobim.com/u/walid.espinosa)\
**Post date:** [January 28, 2021, 4:27pm UTC](https://forum.dynamobim.com/t/chair-numbering-tags/59797/7 "2021-01-28T16:27:43Z")

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hey Renzoj, no i don’t know-how . could you explain more in detail or provide me with examples

Many thanks !!

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**Author:** ![Renzoj14](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/renzoj14/32/49196_2.png) [@Renzoj14](https://forum.dynamobim.com/u/Renzoj14)\
**Post date:** [January 28, 2021, 4:48pm UTC](https://forum.dynamobim.com/t/chair-numbering-tags/59797/8 "2021-01-28T16:48:40Z")

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Hi,

have a look [here](https://forum.dynamobim.com/t/list-sort-by-key-by-z-then-by-y-then-by-x-location/23227)

you can also search similar topics in the forum 🙂

Hope this helps!

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<div class="post-metadata">

**Author:** ![walid.espinosa](https://avatars.discourse-cdn.com/v4/letter/w/dc4da7/32.png) [@walid.espinosa](https://forum.dynamobim.com/u/walid.espinosa)\
**Post date:** [January 28, 2021, 11:39pm UTC](https://forum.dynamobim.com/t/chair-numbering-tags/59797/9 "2021-01-28T23:39:36Z")

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Thanks alot , 🙂 i will try it !!