# Spot Coordinates Error

**URL:** <https://forum.dynamobim.com/t/spot-coordinates-error/35605>\
**Category:** Revit\
**Tags:** revit, dynamo\
**Created:** [May 6, 2019, 10:24am UTC](https://forum.dynamobim.com/t/spot-coordinates-error/35605 "2019-05-06T10:24:56Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Nissal](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/nissal/32/67016_2.png) [@Nissal](https://forum.dynamobim.com/u/Nissal)\
**Post date:** [May 6, 2019, 10:24am UTC](https://forum.dynamobim.com/t/spot-coordinates-error/35605/1 "2019-05-06T10:24:56Z")

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Hey Hi,  
Initially I have given some values of Project Base point for N, E, and angle to true north. Survey base point is keep as 0,0,0

Now,  
I’m extracting values from spot coordinates to find N, E of the elements.  
This is huge error. i can see it is not taking values from project base point.  
As an example below:

 ![revit%201](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/3/4/34ddbe9700c3705295a545ea7af787045b6cf258.jpeg)

and from dynamo i get this value:

 ![dyna1](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/a/5/a598ad3abaebadb253c6a0cd9620d00e6c5602e1.png)

Because there is rotation in model, i cant do simply add/subtract from project base pt values.

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**Author:** ![Alban\_de\_Chasteigner](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/alban_de_chasteigner/32/39650_2.png) [@Alban\_de\_Chasteigner](https://forum.dynamobim.com/u/Alban_de_Chasteigner)\
**Post date:** [May 6, 2019, 11:29am UTC](https://forum.dynamobim.com/t/spot-coordinates-error/35605/2 "2019-05-06T11:29:20Z")

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Hi @Nissal,

This node could help you convert points in the desired coordinate system.  
 ![Convert%20Point%20in%20Coordinate%20Systems](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/7/b/7bbda37ad4e4da0b5728451ad33b8e6e8b122b39.png)

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<div class="post-metadata">

**Author:** ![Nissal](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/nissal/32/67016_2.png) [@Nissal](https://forum.dynamobim.com/u/Nissal)\
**Post date:** [May 7, 2019, 4:35am UTC](https://forum.dynamobim.com/t/spot-coordinates-error/35605/3 "2019-05-07T04:35:59Z")

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thank you @Alban_de_Chasteigner 🙂  
from which package will I get it?

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**Author:** ![Ewan\_Opie](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/ewan_opie/32/77070_2.png) [@Ewan\_Opie](https://forum.dynamobim.com/u/Ewan_Opie)\
**Post date:** [May 7, 2019, 6:50am UTC](https://forum.dynamobim.com/t/spot-coordinates-error/35605/4 "2019-05-07T06:50:13Z")

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**GeniusLoci** package, as displayed in the node title.