How should I present multiple point on the map in ThingSpeak Visualization code?

I am working on showing the coordinate on the map in my ThingSpeak channel. However, it only allow to show 1 coordinate on my created map. How should I hold the previous coordinate, then adding multiple coordinate continuously without refreshing the webpage? (Paid license account)

Hopefully someone can provide your suggestion to me. Thanks in advance.

Answer 1

[Christopher Stapels]

I recommend writing the position data to your channel feed in the latitude and longitude fields.

https://api.thingspeak.com/update.json?api_key=xxxxxxxxxxxxxxxx&lat=22.3&long=34.5

Then in your MATLAB visualization, use thingSpeakRead, and set the name-value pair 'location' to true.

ThemeCopy
myData=thingSpeakRead(876466,'Location',true,'outputformat','timetable','numPoints',10);

now you can use geoscatter or any of the other great mapping functions to plot your data.

geoscatter(myData.Latitude,myData.Longitude)

[Candy Lau]

Perfect solution! Thank you so much!