Plot numbers in geoplot

Question

Dion Theunissen 2021-11-8

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1581424-plot-numbers-in-geoplot

回答： Adam Danz 2021-11-8

I have the following code, but this wil not work:

           for g = 1:size(scaniadatacompare3)
                latStart = scaniadatacompare3.StartLatitude(g);
                lonStart = scaniadatacompare3.StartLongitude(g);
                latStop = scaniadatacompare3.EndLatitude(g);
                lonStop = scaniadatacompare3.EndLongitude(g);
                geoplot([latStart latStop],[lonStart lonStop],'b-*','LineWidth',3)
                geobasemap streets
                hold on
                textm(latStart, lonStart+0.3, num2str((scaniadatacompare3.DistanceKm(g))'), 'FontSize',14)
                hold on
            end

Here I read a table with latitude and longitude coordinates. In this table is also a DistanceKm number, I need to plot this number over the map as a layer. Anyone who can help me with this?

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Answer 1

Adam Danz 2021-11-8

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1581424-plot-numbers-in-geoplot#answer_826639

Specifying the coordinates in geoplots can be tricky since. Don't forget that South and West are negative values. See this demo from the documentation.

It may be helpful to use

xy = ginput(1)

to manually select the location of the text and see the coordinates.