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Polymarker geographic contour plot

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Is it possible to make following contour plot using Matlab? Not only for filled buble but also for other markers such as filled three angles. Thank you for help.

Accepted Answer

Dave B
Dave B on 13 Oct 2021
Yes this is possible.
I wouldn't call this a contour plot, it's really more like a bubble plot.
You can't make triangles with geobubble, but you can with geoscatter. geoscatter provides lots of the same functionality as geobubble, but you have to scale the markers yourself and you don't get a size legend (not sure what that might look like for triangles).
x=randi([20 50],50,1);
y=-randi([70 130],50,1);
s=rand(50,1)*300;
c=randi(8,50,1);
figure
geoscatter(x,y,s,c,'filled')
colormap(jet(8))
colorbar('location','southoutside','Ticks',linspace(1,8,9))
figure
geoscatter(x,y,s,c,'^','filled')
colormap(jet(8))
colorbar('location','southoutside','Ticks',linspace(1,8,9))
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