# Save IGTLink 3D coordinates

**URL:** https://discourse.slicer.org/t/save-igtlink-3d-coordinates/27991
**Category:** Support
**Tags:** file-export, openigtlink, save
**Created:** [February 22, 2023, 10:30pm UTC](https://discourse.slicer.org/t/save-igtlink-3d-coordinates/27991 "2023-02-22T22:30:25Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Hugo\_Angulo](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/hugo_angulo/32/18533_2.png) [@Hugo\_Angulo](https://discourse.slicer.org/u/Hugo_Angulo)
#### Post date: [February 22, 2023, 10:30pm UTC](https://discourse.slicer.org/t/save-igtlink-3d-coordinates/27991/1 "2023-02-22T22:30:25Z")

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Hi there,

I am currently simulating that I receive some coordinates through the usage of the TrackerSim binary file that I found in an old page in the website. Now, I was able to mimic that this is a remote machine that is sending coordinates to another machine in which I have 3D Slicer running with IGTLink as a server. Initially I started the server in 3D Slicer, and after some time working on the TrackerSim, I was able to transmit some data. After that, I figured that there is a feature that allows you to ‘Collect Points’, so I assumed that this is what I wanted, and I was correct on that since I started to see that there were some ‘dots’ that got drawn into the 3D view. I was trying to download those streamed coordinates, but when I hit the SAVE button it only saves a txt file that has the following form:

#Insight Transform File V1.0  
#Transform 0  
Transform: AffineTransform\_double\_3\_3  
Parameters: -0.9974045864631055 0.04716505426897695 0.05439964112597738 -0.04716505426897695 0.14285717972280787 -0.9886188497583283 -0.05439964112597738 -0.9886188497583283 -0.1402618257905485 -49.41922555485868 -1.6675462033025057 -7.413424280973429  
FixedParameters: 0 0 0

How can I save all the coordinates that I have sent to the IGTLink Server in a CSV or TXT file? Or is there any other format that I can use to save ALL of the coordinates transmitted during a certain period of time?

Thanks and I do appreciate your help!