Does anyone know if it is possible to give a different color to select intervals of a curve

I am modelling a material property curve and want to have different colors represent different elastic behavior. -Thanks

[John D'Errico]

The lazy solution is to break the curve into segments, that you then plot separately, each with its own color assigned. Do you want a smoothly interpolated color gradient along the curve?

Answer 1

[KSSV]

n = 100;
x = linspace(-10,10,n); y = x.^2;

z = zeros(size(x));
col = x;  % This is the color, vary with x in this case.
surface([x;x],[y;y],[z;z],[col;col],...
        'facecolor','no',...
        'edgecolor','interp',...
        'linewidth',2);

Answer 2

[Walter Roberson]

Look in the File Exchange; there are a few contributions for handling colored lines.

There are three basic approaches:

1. break the range up into segments each with consistent color, and output enough line() objects to draw the whole; this has the simplest representation, easiest to understand the output graphics objects, but is the most expensive to draw; or
2. use surface() objects (includes mesh objects) to draw colored edges; or
3. use patch() objects to draw colored edges. This has the greatest flexibility about how the color of the edges is to be determined.

The file contribution has various implementations that include each of the three techniques.