Z order (Morton Curve) for matrix .and Hausdorff distance.

Hi everyone, I'm new and I'm doing a photo-processing project to recognize faces.

I have problem calculating the Z order for the matrix. I saw a code about it

function A = mapping(n)
% To create a Morton Scan order matrix
if n == 2
A = [1 2; 3 4];
else
B = mapping(n/2);
A = [B B+(n/2)^2; B+(n/2)^2*2 B+(n/2)^2*3];
end

But when I did it reported an error

>> Zorder(C)

Undefined function or variable 'mapping'.

Error in Zoder (line 6)

B = mapping(n/2);

Im working on Local Start Search algorithm

Answer 1

[Srivardhan Gadila]

From the above information the function mapping calls itself recursively.

So if you simply renamed the function mapping to Zorder without adding more code or without making any other changes then you also have to change the line

B = mapping(n/2);

to

B = Zorder(n/2);

If you have done anything differently than mentioned above in the answer, then can you provide more details & reproduction steps?