About use "surf" to paintings matrix problem

HI,

I have a matrix of a 8x8 matrix

Code chart is as follows

    clear all; clc;
a=[    56 61 63 66 66 62 55 59
       56 59 61 62 61 60 54 63
       60 61 60 58 58 65 58 71
       64 63 62 61 62 64 58 74
       71 65 65 66 64 68 66 73
       79 67 70 66 69 70 68 71
       85 71 73 73 75 74 69 68
       88 80 84 88 94 100 89 75];

 surf(a); 
 axis([1,8,1,8]);
 colorbar;
 view(0,-90);

The color of the drawn graph is not the same as I want

http://ppt.cc/5Btu

ex: the original value of 100 (8 line 6 position)

How is not the same color?

What's wrong with me?

thanks

Answer 1

[Walter Roberson]

surf() uses the current colormap. They might have used a different colormap than you are using.

[BB]

hi,

i mean the position(8 line 6 position) value is 100

but the drawn graph color is not red

so,maybe i can't use the "surf" command

i want plot 8x8 picture and the value use different color to represent the strength.

what the command can reach my goal?

Answer 2

[BB]

The picture should like this

http://ppt.cc/nsSC

please help me ,thanks