Scatter points with a colormap based on distances

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!

Answer 1

[KSSV]

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

[John D'Errico]

Correct, except it sounds like the goal was to plot the points in the projection plane. In that case, your answer would have the points plotted using scatter as a 2-d projection, but still working in a similar way.

[Francesca Danielli]

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]

Thanks is accepting/ voting the answer. :)