No, plot3 only supports a single color. You can use other graphics functions. The "traditional" one for this purpose is actually rather surprising. It's the patch function, which is designed for drawing filled polygons.
Consider this example:
x = cos(theta);
y = sin(theta);
z = theta;
plot3(x,y,z)
I can draw it colored by Z like this:
cla
patch([x nan],[y nan],[z nan],[z nan],'EdgeColor','interp','FaceColor','none')
What's going on here is the following:
- The 4th arg says to use Z for color data
- The EdgeColor=interp says to interpolate the color data as the edge color
- The FaceColor=none says to not fill the polygon. Just draw the edges
- The nans say not to connect the last point to the first point.
There are a couple of other options, but that's probably what most old-school MATLAB programmers use.
