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In addition to displaying geographic data, QGIS is a powerful tool for processing data for use by other mapping applications. If you want to make online maps, using tools including TileMile and Leaflet, for instance, QGIS can help get your data into the right shape.

In this class, we'll explore some useful QGIS data processing functions, including joining tables of data to existing shapeflies, simplifying geographic features so that online maps will render quickly, and how to save data in formats commonly used for web mapping. We'll also learn how to edit geographic data, and how to process data consisting of hundreds or thousands of closely spaced or overlapping points to give a more meaning summary display.