TIN (Triangulated Irregular Network)

A Triangulated Irregular Network (TIN) is a digital representation of a terrain's surface. It uses a collection of non-uniform triangles to model the shape of land features, connecting points called nodes that have known elevation values. These triangles adapt to the terrain's complexity, capturing details like hills or valleys more accurately than regular grids. TINs are useful in geographic information systems (GIS) for analyzing and visualizing terrain, planning construction projects, and managing environmental resources, providing a flexible and precise way to represent the Earth's surface.