MATLAB: 3 dim plot, how to specify color for each point

Question

Hello,

Suppose I want to plot 3-d sin(x+y), x = [0, pi], y = [0, pi]. I have a 3*n matrix to denote the RGB for each point. How to efficiently generate the plot?

Thanks,

Weizhou

Answer 1

x = linspace(0,pi);
y = x;
z = sin(x+y); 
col = jet(numel(x)); % sample color from jet colormap
scatter3(x,y,z, [], col)