Add some kind of texture or pattern to a 2D plot generated using surface

Hi!

I have a question but I am not too sure as to how to explain it.

Let's say I generate a figure using surface and get something like:

Now this is for a publication and I do not want to pay for color, so I have to turn it to black and white, if I change the color map to gray, it looks horrible:

So i wanted to know if it is possible to plot some kind of pattern or texture to differentiate the two regions.

For simplicity lets say that red=1 and blue=0 and it is a matrix that map the space between 0.5 and 2 in F and 0.2 and 1.5 in T.

What i want would be to have a pattern instead of red and a pattern instead of blue, something like

the horizontal lines for blue and the vertical lines for red (or anything of the sort)

I looked into the texturemap but I honestly did not understand how it works, and I think there must be a simple solution to this, so I came to ask the pros ;)

Thanks in advance for your help!!

Alejandro

[Thorsten]

To me the b/w version looks fine. What's so 'horrible' about it?

[Alejandro]

hahahaha, just a matter of personal taste I guess, in the end I came up with a couple of ideas but decided to just use a scale of greys so the contrast was not a strong as in the b&w.

Thank you!