"Triangulating" is a word in ENGLISH

An examination of a region as to its general natural features, preparatory to a more particular survey for the purposes …

To divide into triangles; specifically, to survey by means of a series of triangles properly laid down and measured.

To make triangular, or three-cornered.

of Triangulate

The series or network of triangles into which the face of a country, or any portion of it, is divided …