How I can change the color range of surface plot

Hi everyone, I followed the answer of this question: https://ch.mathworks.com/matlabcentral/answers/5042-how-do-i-vary-color-along-a-2d-line I would like to change the range of the color in a specific range. I change the code as below but it did not work. Please suggest me a solution. Thanks!

x = 0:.05:2*pi;
y = sin(x);
z = zeros(size(x));
col = linspace(0, 255, size(x,2));  % This is the color, vary with x in this case.
% colormap([col; col; col].')
surface([x;x],[y;y],[z;z],[col;col],...
        'facecol','no',...
        'edgecol','interp',...
        'linew',2);

Answer 1

[KSSV]

doc caxis

[GreenPiece]

Size of vector x is: 1x126 I want to map [0,255] values of color to [1,126]. The caxis does not work for this case.

[KSSV]

col = linspace(0, 126, size(x,2));  % This is the color, vary with x in this case.

won't this work?

[GreenPiece]

It is not full range color RGB, there is no red color in the result. That why I want to modify the command to get the full range of colors.

[KSSV]

Ok....do interpolation of size 255 to 126.