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==Vector Data==__NOEDITSECTION__
Vector data is not made up of a grid of pixels. Instead vectors are comprised of vertices and paths. These include points (locations), lines (Roads) and polygons (Areas).
==Raster Data==__NOEDITSECTION__
Raster data is made up of pixels (also referred to as grid cells). Raster’s often look pixelated because each pixel is associated with a value or a class.
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More reading:
[http://gisgeography.com/spatial-data-types-vector-raster/ GIS Spatial Data Types: Vector vs Raster]