3 Getting the World into Your GIS
Do you know what you want to map but do not know how to make or get data that will work for the project? Where do you start? There is a world of data available for Geographic Information System (GIS) projects through many possible sources, and, in today’s age of global networking, it is often just a click away. Both public domain and commercial datasets provide options for mappers in generally usable formats, whether the application requires physical, human, vector, or raster data. Sometimes data that exists in tabular form with spatial fields can be converted quickly into mappable layers. You may also require remote sensing images or digital terrain data that can be used to visualize ...
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