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Scatter points with a colormap based on distances

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Francesca Danielli 2022-10-2

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https://ww2.mathworks.cn/matlabcentral/answers/1815930-scatter-points-with-a-colormap-based-on-distances

评论： KSSV 2022-10-2

采纳的回答： KSSV

Hi! I have a first set of N points (each of them is identified by the three coordinates) and I have projected them on a plane (identified by a,b,c,d parameters). For each point, I calculated the distance from the plane and the coordinates of the point projected on the plane. Now I'd like to plot (scatter) the projected points on the plane according to a color map that accounts for the calculated distance..any suggestion? Thank you!

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KSSV 2022-10-2

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You can use scatter3.

x = rand(10,1) ;

y = rand(10,1) ;

z = rand(10,1) ;

d = rand(10,1) ;

scatter3(x,y,z,[],d,'filled')

colormap(jet)

colorbar

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Francesca Danielli 2022-10-2

thanks to both of you :)

I succeeded with the following

figure()

scatter3(px_0a_out , py_0a_out , pz_0a_out , 40 , distanza_0a , 'filled')

xlabel('x')

ylabel('y')

zlabel('z')

axis equal

colormap(jet());

h = colorbar;

h.Limits=[0 max(distanza_0a)]; % set(h, 'ylim', [0 max(distanza_0a)])

title(h, 'Protrusion')

KSSV 2022-10-2

Thanks is accepting/ voting the answer. :)

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