GIS Data:

Types of vector data

Billy Rogers

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The real world is represented by GIS data

GIS, or Geographic Information System, manages, and analyzes data tied to spatial or geographical location.

Vector data is one way that real world features and concepts are represented in GIS.


Let's take  a look at  vector data

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Map of time zone boundaries

Types of VECtor GIS datA:

1. point 2. line 3. polygon

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Point Data

Point date is discrete and doesn't immediately border other data. Point data has zero dimensions - you can't measure area or length. Examples: points of interest, cities on a small scale map, trees, elevation points

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Line data is used to represent linear features. Line data has one dimension - you can measure length. Examples: roads, rivers, tornado tracks, hurricane paths, borders

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Line Data

Polygons are used to represent areas.  Polygons are two-dimensional so you can use this data to measure area and perimeter. Examples: lakes, urban areas, parks, glaciers, countries, states, provinces

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Polygon Data