Adding a Border to my map using Mapping Toolbox

Question

Lucas AdrienCamus 2023-1-6

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https://ww2.mathworks.cn/matlabcentral/answers/1889447-adding-a-border-to-my-map-using-mapping-toolbox

回答： Cameron 2023-1-6

Hi,

So my problem is on the map below. I am using the France map thanks to the mapping toolbox, however, I can't find a way to put a proper border. I have drawn myself the dark line for now, and i know i can add more point to make it better, but i want to know if there is a way to import other data/something else to get it better. The code is below.

Moreover, I'd like to know if in general, i can import a map from the internet, like a picture, and superimpose it to my map, for example, the map below. I would just need the color, but i admit it would be easier to import it than create hundred of points to make it myself.

Thank you for your responses!

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Answer 1

Cameron 2023-1-6

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https://ww2.mathworks.cn/matlabcentral/answers/1889447-adding-a-border-to-my-map-using-mapping-toolbox#answer_1142907

在 MATLAB Online 中打开

Here's a start. I saved the picture you posted as "image.png". You may have to adjust the fig.Position vector to size it correctly. You also might want to select a picture that doesn't have a black background.

fig = figure;
ax = axes(fig);
img = imread('image.png');
yLimits = [0 1000]; %you can make this your longitude
xLimits = [0 500]; %you can make this your latitude
image('CData',img,'XData',xLimits,'YData',flip(yLimits))
hold on
x = randi(xLimits,10,20); %some random x data
y = randi(yLimits,10,20); %some random y data
p = scatter(x,y,'ro','filled');
hold off
axis tight