Finding maximum along a line

Hi community,

in my model (2D, x- and y-positions) I need to know the x-position of the maximum temeperature on any fixed y-position during the calculation over the whole domain.

The problem is, that if I define the maxop1 operator for example over the whole domain, I get only the x-position of the global temperature by using maxop1(T,x).

In my oppinion I have to use some extrusion or projection coupling operators but I'm not sure how to do it in the right way.

Thanks for your replies,
Sincerely Thomas