Surveying is the technique of collecting evidence related to legal boundaries
and the science of accurately determining the terrestrial or three-dimensional
space position of points and the distances and angles between them. These
points are usually on the surface of the Earth, and are often used to establish
topography maps and boundaries for ownership or governmental purposes. In
order to accomplish their objective, surveyors use elements of law, geometry,
engineering, trigonometry, mathematics and physics.