3D scatter plot: can I make transparent points

Hello all,

I have a dataset of XYZ and a value I want to plot in a 3D view (attach JPG of my attempt). When using scatter3 it plots all the datapoints, making it hard to see any feature in the centre of the 3D cube. Is any way I could make the points to be transparent (or smaller) depending on its value ? the same way I have a colorbar, but in dot size, or transparency.

Thanks in advance

[Voss]

"(or smaller)"

You can specify the marker sizes:

https://www.mathworks.com/help/matlab/ref/scatter3.html#mw_b556f712-aa82-4a50-8405-ab3624e1431d

[AGG]

Great ! thanks

Answer 1

[ScottB]

You can set the alpha attribute for each marker:

[X,Y] = meshgrid(-10:10);

Z = ones(21,21) * -2;

surf(X,Y,Z)

hold on

scatter([-8 2 4 -5 5 3],[7 4 2 -1 -7 0],200,'filled')

alpha('x')