Mary Maersk Location

  • Channel ID: 73734
  • Author: demo
  • Access: Public
Tracking the location of one of the world's largest container ships
  matlab, trendy, GPS, ship
 More Information

Map Plot of Mary Maersk's Location
Channel Video
Field 1 Chart
Field 2 Chart
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aybenuluturk over 1 year ago
can i ask help for mathlab code for plotting the map?
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shahul.hameedu about 1 year ago
% Enter your MATLAB code below
% Read the last 100 data points from a ThingSpeak Channel
data = thingSpeakRead(73734,'ReadKey','2I1LW1LFEWZZ0JEV','NumPoints',200);
% Assign latitude to field1
latitude = data(:,1);
% Assign longitude to field2
longitude = data(:,2);
% Load map image
url = 'https://upload.wikimedia.org/wikipedia/commons/thumb/7/74/Mercator-projection.jpg/773px-Mercator-projection.jpg';
img = imread(url);
[imgH,imgW,~] = size(img);
image(img/2+127)
axis off
% Adjust lat/long for map image
mercatorLon = @(lon) mod((lon+180)*imgW/360, imgW);
mercatorLat = @(lat) imgH/2-log(tan((lat+90)*pi/360))*imgW/(2*pi);
x = mercatorLon(longitude);
y = mercatorLat(latitude);
% Plot markers on map
hold on
plot(x,y, 'r.', 'MarkerSize',10)
plot(x(end),y(end), 'ro', 'MarkerSize',10)
hold off
axis equal
axis([325 719 84 395])
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