How can I plot Latitude and Longitude in a map, color depending on a certain value

Question

Tanja 2016-10-5

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/305948-how-can-i-plot-latitude-and-longitude-in-a-map-color-depending-on-a-certain-value

回答： Marc Jakobi 2016-10-6

Hi there, I am new at Matlab and I have the following problem: I have two vectors with values for longitude and latitude (70x1) and I have a matrix (100x71) which has a date in the first column and concentrations in the other 70 columns. Each column represents the values for lat and lon in the vektor, so matrix(1,3) = lon/lat(2,1). I now want to plot them in a map using plot_google_map and several for loops, so I get a map picture for each of the 100 dates. It's working fine if I define the color of every value range. But I would actually prefer to have the color as a function of the concentration and the map with a colorbar.

for k = 1:100;
    for i = 1:70;
        if Con(k,i+1) >= 0 & Con(k,i+1) < 10;
          plot(lon1(i),lat1(i),'Marker','.','Color',colormap,'LineStyle','none','MarkerSize',20) 
        end
        if Con(k,i+1) > 10 & Con(k,i+1) < 20;
            plot(lon1(i),lat1(i),'Marker','.','Color',blue,'LineStyle','none','MarkerSize',20)
        end
        if Con(k,i+1) > 20 & Con(k,i+1) < 30;
            plot(lon1(i),lat1(i),'Marker','.','Color',light_blue,'LineStyle','none','MarkerSize',20) 
        end  
        hold on 
    end
    plot_google_map('maptype','terrain','style',styleParams)
    saveas(gcf,sprintf('figure%d.jpg', k))
 end