Geometric Data
Definition
Geometric data refers to the type of data in a GIS that’s associated with geographic datasets. It includes points (0D), lines (1D), polygons (2D), and solids (3D).
Analogy
Imagine you're building a model city out of LEGO blocks. Each block represents geometric data - some are points (like lampposts), some are lines (roads), some are polygons (buildings) and some might even be 3D solids (skyscrapers).
Related terms
Vector Data: This is one form of representing geometric data where locations are represented by points connected through lines or arcs.
Raster Data: Another form of representing geometric data where the world is divided into regular grid cells each storing a value representing an attribute for that area.
Topology: A key property related to how point, line, or polygon features share coincident geometry.
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