GIS Dictionary

1 [surveying] An accurately surveyed coordinate location for a physical feature that can be identified on the ground. Control points […]

[spatial statistics use for geostatistics] In statistical testing, a set of assumptions that will be accepted by test data if

[cartography] The angle between a vertical line (grid north) and true north on a map.

[data conversion] The process of changing input data from one representation or format to another, such as from raster to

[mathematics] The smallest convex polygon that encloses a group of objects, such as points. In ArcGIS, TIN boundaries are convex

[mathematics] A polygon in which a straight line drawn between any two points inside the polygon is completely contained within

[ESRI software] In Survey Analyst, a process of computing a sequence of survey point locations starting from an initial known

A reference framework consisting of a set of points, lines, and/or surfaces, and a set of rules, used to define

The process of converting the coordinates in a map or image from one coordinate system to another, typically through rotation

[astronomy] The official timekeeping system of the world’s nations since 1972. It refers local time throughout the world to time

[coordinate systems] A set of values represented by the letters x, y, and optionally z or m (measure), that define