# How to access realtime outside signs?

**URL:** <https://discourse.slicer.org/t/how-to-access-realtime-outside-signs/24556>\
**Category:** Support\
**Created:** [July 29, 2022, 5:40am UTC](https://discourse.slicer.org/t/how-to-access-realtime-outside-signs/24556 "2022-07-29T05:40:01Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![whu](https://avatars.discourse-cdn.com/v4/letter/w/7ab992/32.png) [@whu](https://discourse.slicer.org/u/whu)\
**Post date:** [August 8, 2022, 7:17am UTC](https://discourse.slicer.org/t/how-to-access-realtime-outside-signs/24556/3 "2022-08-08T07:17:30Z")

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Maybe this is the second topic using NDI device.  
the first as : [Navigation with NDI Aurora/Polaris tracker](https://discourse.slicer.org/t/navigation-with-ndi-aurora-polaris-tracker/905)  
Here I have connected the NDI trakSTAR using PLUS server + OpenIGTLinkIF. As image showed below.

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/1/3/13c598d37fa71938fd0bdffbfd43cb4841dbb06a.png)  
Here my question is how to get or show the data from the IGT above ?  
thanks for any suggestion. 🙏

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