How to plot a 3d graph with projection of 3d axis values on to the 2d surface with vertical lines

Hi guys,

Can any one help me out in plotting a 3d graph with projection of 3d axis values on to the 2d surface with vertical lines.

Example image is attached.

Let me know If there is any simple solution for this

[Tommy]

Should these vertical lines only be plotted for a subset of the data?

Answer 1

[KSSV]

N = 100 ;
x = rand(N,1) ; y = rand(N,1) ; z = rand(N,1) ;
% pick some points from above to draw vertical lines
idx = randperm(N,10) ; 
x1 = x(idx) ; y1 = y(idx) ; z1 = z(idx) ; 
x2 = x(idx) ; y2 = y(idx) ; z2 = 0*z(idx) ; 
% draw vertical lines 
plot3(x,y,z,'ob')
hold on
plot3([x1 x2]',[y1 y2]',[z1 z2]','r')

[Vinay Killamsetty]

Thank you very much