Setting the independent colors of multiple surfaces

Hi all,

I am working on a numerical methods project where I would like to model a volume. I would later like to plot the surfaces depending on their temperature, so I need to have each plot to be a different colour. However, if I use the following code, regardless of setting the colormap each time, the colour gets overwritten with the last function. Please help.

[z, y, x] = cylinder(dRadius, 20);
surf(x*discWidth, y, z);
alpha(alph);
colormap([0, 1, 0]);
hold on;
[z, y, x] = cylinder(dRadius*2, 20);
surf(x*discWidth, y, z);
alpha(alph);
colormap([0, 1, 0]);
[z, y, x] = cylinder(dRadius*3, 20);
surf(x*discWidth, y, z);
alpha(alph);
colormap([0, 1, 0]);
[z, y, x] = cylinder(dRadius*4, 20);
surf(x*discWidth, y, z);
alpha(alph);
colormap([0.6, 1, 0]); %this seems to dictate what the total colour is.

Answer 1

[Jonathan Rabe]

This line seemed to work well with a facecolor argument...

surf(x, y, (b+z*discWidth), 'FaceColor', [Temps(elem, ringno)/100, 0, 1-Temps(elem, ringno)/100], 'LineWidth', lwidth);