Learning objectives

Chapter six provides an overview of vector data processing in Python. You will learn how geographic objects can be represented and manipulated in Python, how coordinate reference systems can be defined and modified, and learn how to conduct common spatial analysis processes and techniques such as geocoding, spatial queries, spatial joins,nearest neighbor analysis and geographic overlay analysis.

Basic knowledge of tabular data manipulation using the pandas library introduced in Part I is a prerequisite for learning to use geopandas for spatial data analysis in this section.

Learning objectives

At the end of this chapter, you should be able to:

• Represent geographic vector objects in Python using the shapely library

• Understand the basic data structures and methods of geopandas GeoDataFrames

• Execute common geometric operations with points, lines and polygons

• Define and reproject the coordinate reference system of a spatial dataset

• Geocode addresses to coordinates using Python

• Perform spatial queries and spatial join operations

• Conduct nearest neighbor analysis

• Perform various geographic overlay analysis