Part III: Geospatial Rails
So far we’ve talked about querying data using ActiveRecord and also using raw SQL. We’ve done several different data visualizations using that data. Those visualizations utilized several different types of graphs. All the applications we built have an additional component that we have not yet addressed.
They all have location information.
This next section will discuss how to work with geospatial data in Rails. In Chapter 9, “Working with Geospatial Data in Rails,” we discuss PostGIS, the Postgres GIS extension. We discuss geographic data types and how to make use of them in your Rails apps. You also learn how to import data, specifically a geospatial data format called a shapefile.
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