How to plot a Map with 2 dimensional colorbar?
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sid Chen
el 14 de Oct. de 2019
Comentada: sid Chen
el 15 de Oct. de 2019
Hi, I want to plot like this figure.
My question is how to get colorbar like this one, the shape of the figure( like this map) doesn`t matter( Now it`s a gobal spatial pattern, it could be anything else)
at each point on the map, I have 2 values, mapping to one color in the two dimensional colorbar.
3 comentarios
Adam
el 14 de Oct. de 2019
As mentioned, there is no functionality for a 2d colourbar in Matlab, but you can create your 2d image representing your 2d colourmap easily and just plot it using imagesc on its own axes that you can position wherever you want.
Respuesta aceptada
darova
el 14 de Oct. de 2019
Here is a way:
clc,clear
n = 100;
I = zeros(n,n,3);
h = linspace(0,1/6,n);
s = linspace(1,0,n/2);
[H,S] = meshgrid(h,s);
I(:,:,1) = [H+0.5; H];
I(:,:,2) = [S; flipud(S)];
I(:,:,3) = [S; flipud(S)]/2+0.5;
I1 = hsv2rgb(I);
imshow(I1)
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Alaster Meehan
el 14 de Oct. de 2019
I don't think Matlab has anything that can do this nativly, but I will follow just incase any has a better idea then me.
My thoughts...
Generate an image/matrix that is what you want you color bar to look like. Use the subplot function to plot your image/map and your colorbar image next to each other.
Cheers Alaster
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