That aside is both a nitpick (the curvature of Earth is small enough on the local scale of a city that the differences are negligible) and it is wrong, as cartesian coordinates are planar and aren’t useful for accounting for spherical curvature. “Euclidean” and “cartesian” are basically synonyms for this purpose.
I think you should use ‘cartesian zoning’ unless you have a flat earth agenda.
That aside is both a nitpick (the curvature of Earth is small enough on the local scale of a city that the differences are negligible) and it is wrong, as cartesian coordinates are planar and aren’t useful for accounting for spherical curvature. “Euclidean” and “cartesian” are basically synonyms for this purpose.
Euclidian geometry is used for things on a globe.
non-euclidian spaces are those that are not spherical. Such as a flat earth.
Caretesian means to exist in an X-Y plane. Such as a grid in a city. Seems closer to your seeming intent.