Clear Filters
Clear Filters

How can I draw points with 3 column data

4 views (last 30 days)
Dung Nguyen
Dung Nguyen on 22 Mar 2023
Commented: Cameron on 23 Mar 2023
Dear friend
I have a data file with 3 columns as 1 column is longitude, 2 column is latitude and column 3 is values. I want to draw a figure which I attached. I tried with 'scatter' and 'pcolor' but I didn't succeed. I attached a figure as a example and a data file. I hope someone can help me.

Answers (1)

Cameron
Cameron on 22 Mar 2023
You can adjust your plot as needed.
data = webread('https://www.mathworks.com/matlabcentral/answers/uploaded_files/1332705/tec.txt');
numericdata = str2num(data);
longitude = numericdata(:,1);
latitude = numericdata(:,2);
color = numericdata(:,3);
geoscatter(latitude,longitude,color,color,'filled')
colormap('turbo')
colorbar
  2 Comments
Dung Nguyen
Dung Nguyen on 23 Mar 2023
Dear Cameron
Thanks for your replying. I run your code but it inform a error (I sent a figure in the attachements). I use matlab 2016a, It does not have 'geoscatter'. I coppy 'geoscatter' in another verision of matlab. Can you check to help me?
Cameron
Cameron on 23 Mar 2023
All of the geoaxes plots I'm aware of are only available in R2017b and later releases. If possible, I would try to update to a more recent version as there have been 14 major releases since R2016a.

Sign in to comment.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!