Overlay imagesc with crosses

Hi,

I wonder if it is possible to add crosses at some locations of an imagesc plot, like in the picture below, but with crosses that have the same size as the rectangles containing them?

All help appreciated,

Sylvain

 Code used
 im=imagesc(magic(3))
 hold on
 plot(2,2,'marker','x','MarkerSize',20,'Color','white')

Answer 1

[Walter Roberson]

On my system, with the default figure size, it came out as

im=imagesc(magic(3)); axis image; hold on
plot(2,2,'marker','x','MarkerSize',165,'Color','white')

However, if there were any kind of resizing, the marker would stay the same size on the screen rather than resizing with the box. It is therefore better to draw the lines, such as

plot([1.5 2.5 nan 2.5 1.5], [1.5 2.5 nan 1.5 2.5],'Color','white')