Question

There is an object on an area with dimension M*M unit cells. The coverage rate C=1/M * Sum(i=1 to M J(i)) where J(i)=1 when the cell i is covered and 0 otherwise. This is a color scale map representing the visit of the cells vs the times of visiting by the object. So, the legend shows that there are cells which have been visited from 0 to 8 times in N number of iterations. Can anyone tell me how this color representation can be coded? What and how this can be generated?

Answer 1

Use image (or imagesc). You need a matrix of X values and Y values, and the corresponding matrix of Z values.

For example:

% generate some x,y
[x,y]=meshgrid(1:10,1:10);
% generate some z values: random numbers from 0 to 8
z = randi([0 8],size(x));
% plot
imagesc(x,y,z)

How you determine your x, y, z … well, you’d have to provide more information.