See Vector Formats & Sources for more information. Raster formats use pixels at a known resolution to convey information, whereas vector formats use geometric primitives that are generally resolution independent. vector: datasets defined as geometric primitives rather than raster dataĬartographers use raster and vector data sources to produce maps (Kimerling et al., 2009) and deliver maps in raster or vector formats.resolution: the number of distinct pixels that can be displayed in a measured space.raster: datasets defined as an array of pixels.pixel: a portmanteau of ‘picture element’, the smallest unit of a raster.
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