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Topic: Adding EVENT MARKERS to Signals
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fereshteh61606



Joined: Jun 9, 2020
Posts: 1

PostPosted: Jun 9, 2020 2:43 AM    Post subject: Adding EVENT MARKERS to Signals

Hi
I have two main questions:
1) I want to know if it is possible to add event markers to a signal using the Bioera?
2) I want to know if i can somehow add some markers that divides my signal chart into the for example 4 parts or sections before i even start recording? I mean, for instance, i need to have a chart which has 4 markers that each are 10 seconds apart then when i start my recording i can observe the recording signal falls in each section.
jarek



Joined: Oct 22, 2007
Posts: 814

PostPosted: Jun 9, 2020 4:45 PM    Post subject:

1. Yes, it is possible to add event markers when saving data in XDF file. The option to select is "Annotation", which is a text which can be saved (and then read) at any time point. Here are some snippets how to write and then read annotations:

http://proatech.com/design/xdf_write_annot.bpd
http://proatech.com/design/xdf_read_annot.bpd

2. There is little support in BioEra when it comes to annotations, so nothing like you describe. The ReportGraph is the only graph/chart which can show static data and that includes some basic way of displaying annotations (saved in XDF file). But in general showing static data is not the primary purpose of BioEra (which is about real time feedback), so you would need to experiment with a custom design like in the above example.
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