The Carte de l'Égypte, from the Description de l'Égypte, was the first triangulation-based map of Egypt, Syria and Palestine. The mapmaking expedition was led by Pierre Jacotin. It was used as the bas
In surveying, triangulation is the process of determining the location of a point by measuring only angles to it from known points at either end of a fixed baseline by using trigonometry, rather than
Triangulation of Kodiak Island in Alaska in 1929.
Liu Hui (c. 263), How to measure the height of a sea island. Illustration from an edition of 1726