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The pg_featureserv micro-service is a thin middleware that binds tables and functions in a PostgreSQL database to a JSON collections API, accessible over HTTP. Using the Crunchy Bridge container apps, I'm going to give a quick overview of how to set up a web based spatial heatmap from Postgres. Application The application uses PostgreSQL to store and search 2.2M geographic names in the USA. Type i
Leafmap offers a wide range of features and capabilities that empower geospatial data scientists, researchers, and developers to unlock the potential of their data. Some of the key features include: Creating an interactive map with just one line of code: Leafmap makes it easy to create an interactive map by providing a simple API that allows you to load and visualize geospatial datasets with minim
NameST_AsMVT — Aggregate function returning a MVT representation of a set of rows. bytea ST_AsMVT(anyelement set row); bytea ST_AsMVT(anyelement row, text name); bytea ST_AsMVT(anyelement row, text name, integer extent); bytea ST_AsMVT(anyelement row, text name, integer extent, text geom_name); bytea ST_AsMVT(anyelement row, text name, integer extent, text geom_name, text feature_id_name); Descrip
Building maps that use dynamic tiles from the database is a lot of fun: you get the freshest data, you don't have to think about generating a static tile set, and you can do it with very minimal middleware, using pg_tileserv. However, the day comes when it's time to move your application from development to production, what kinds of things should you be thinking about? Let's start with load. A pub
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