pcolor gridding, grid not match

Hi. I have a 15 X 15 matrix, and each value in the matrix represents a specific gridblock value. For example if AmountOfRock(1,1) = 300, then gridblock(1,1) with an area of A X A meters in real life have 300 rocks in it, and so on. The problem is, when I use

    pcolor(AmountOfRock)

there are only 14 gridblocks, with 15 grid intersections in both X and Y axis. Apparently, pcolor creates a plot in which it assigns each value in AmountOfRocks to grid intersections, not to gridblock. Is there any way to make pcolor assign each value in a matrix to its respective gridblock location and NOT to grid intersection?

Answer 1

[Walter Roberson]

No, there is not. Use image() or imagesc() instead of pcolor().

[Image Analyst]

Common problem. Unfortunately way too common. It should really be explained better or made more obvious in the help. Actually I wonder how so many people, to their detriment, stumble upon pcolor(). I would think they would have encountered image(), imshow(), or imagesc() before pcolor() in their search for a method to display images.

Answer 2

[Ilham]

Not a single way? Ok then, I guess I'll just create one additional empty gridblock at the end of the matrix and modify the axes in paint or something...

edit: image() and imagesc() don't work. I guess I'll stick to paint to edit the axes...

[Walter Roberson]

Creating an empty gridblock will not solve the problem that your points are going to be interpolated.

What result did you get with imagesc() that was different from what you hoped for?