Extract x and y coordinates for points in a multivariable function

I have a function of two variables(x and y). This function only has values of 0 and 1 for each point on the x-y grid. How would I extract the x,y location on the grid for the values which are 1? Thanks

Answer 1

[dpb]

Given a z

[i,j]=find(z);  % indices for lookup into x,y

[Shaildhish Rai]

It works! Thanks

[dpb]

Of course it works! :)

I'll point out that you can be assured it'll find the values since they're integers in this case. If z were some general f(x,y), one has to be careful the simple application of == (which is implied in the above find to locate exact values; even a single bit in the least significant portion of the mantissa will cause the comparison to fail.