Chapter 4. Working with PostGIS
In this chapter we will cover the following topics:
- Executing a PostGIS ST_Buffer analysis query and exporting it to GeoJSON
- Finding out whether a point is inside a polygon
- Splitting LineStrings at intersections using ST_Node
- Checking the validity of LineStrings
- Executing a spatial join and assigning point attributes to a polygon
- Conducting a complex spatial analysis query using ST_Distance()