PostGIS has functions to identify topological elements at a given spatial location. There are three functions, each for one element type.
Querying topological elements by a point
by Tomasz Nycz, Michal Mackiewicz, Dominik Mikiewicz
Mastering PostGIS
- Preface
- Importing Spatial Data
- Obtaining test data
- Importing flat data
- Importing shape files using shp2pgsql
- Importing vector data using ogr2ogr
- Importing data using GIS clients
- Importing OpenStreetMap data
- Connecting to external data sources with foreign data wrappers
- Loading rasters using raster2pgsql
- Importing data with pgrestore
- Summary
- Spatial Data Analysis
- Data Processing - Vector Ops
- Data Processing - Raster Ops
- Exporting Spatial Data
- ETL Using Node.js
- PostGIS – Creating Simple WebGIS Applications
- ExtJS says Hello World
- Configuring GeoServer web services
- Making use of PgRaster in a simple WMS GetMap handler
- Consuming WMS
- Enabling CORS in Jetty
- Consuming WFS in ol3
- Outputting and consuming GeoJSON
- Outputting and consuming TopoJSON
- Implementing a simple CRUD application that demonstrates vector editing via web interfaces
- Summary
- PostGIS Topology
- pgRouting
Querying topological elements by a point
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