Unexpected result from wmline command

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Nachiket Wadwankar
评论： Nachiket Wadwankar 2021-6-6
Hello,
I want to plot a line connecting latitude and longitudes on map using wmline command. When I use the command i get and extra straight line connecting the start and end co-ordinates. How to avoid that line?
Regards,
Nachiket

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Walter Roberson
Walter Roberson 2021-6-2
That does not happen in my tests, such as
cities = shaperead('worldcities.shp', 'UseGeoCoords', true, ...
'Selector', ...
{@(v)(ismember(v, {'London', 'Paris', 'Berlin'})), 'Name'});
lat = [cities.Lat];
lon = [cities.Lon];
wmline(lat,lon)
That suggests that your first and last lat and lon are the same.
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Walter Roberson
Walter Roberson 2021-6-2
Duplicate coordinates.
I recommend plotting your latitude and longitude individually; you will see a big jump half way through.
>> [Longitude([1, end/2]),Latitude([1, end/2])]
ans =
-90.402756 40.9385799
-90.402756 40.9385799
Nachiket Wadwankar
Nachiket Wadwankar 2021-6-6
Actually my data was incorrect.
@Walter Roberson Thank you for your response

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