[Alucard]

Goodmorning
I need to perform some interpolations in Openfoam.

Imagine I've a point P(x,y) ( I know x and y) I need to find at which cell volume this point belongs and,obviously I need he cell center coordinates via the .x() and .y() functions.
All this because I need to know the vector position difference between the point P and the cell center
Xdiff=X(c)-X(P)

(X is a vector)

that I'll use later for some interpolations.

Does some clever function exist in OpenFOAM??
I'm surfing in the *.C,*.H openfoam files and I'm reading the forum since four days without success .