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Point-in-polygon: one PostGIS query for geofencing, zones, and spatial lookups

Point-in-polygon: one PostGIS query for geofencing, zones, and spatial lookups

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2 min read
How We Built Maparz: A Free GIS File Converter for Modern Geospatial Workflows

How We Built Maparz: A Free GIS File Converter for Modern Geospatial Workflows

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3 min read
How I built an Offline-First Voice-Controlled Map Engine in JavaScript

How I built an Offline-First Voice-Controlled Map Engine in JavaScript

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3 min read
I Built a Real-Time Zombie Outbreak Simulator Using Uber’s H3 Spatial Index and Web Workers

I Built a Real-Time Zombie Outbreak Simulator Using Uber’s H3 Spatial Index and Web Workers

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7 min read
Building a Marine Chart Parser in TypeScript: Parsing Binary Formats, Topology, and IHO Symbology

Building a Marine Chart Parser in TypeScript: Parsing Binary Formats, Topology, and IHO Symbology

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2 min read
How to Geocode Thousands of Addresses for Free

How to Geocode Thousands of Addresses for Free

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9 min read
How I Built a Childcare Availability Platform for 38,000 French Nurseries

How I Built a Childcare Availability Platform for 38,000 French Nurseries

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2 min read
I Built CityDistance.io: A Free Tool to Find Cities from Distance

I Built CityDistance.io: A Free Tool to Find Cities from Distance

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3 min read
How to Draw Shapes with Different Colors in MapLibre GL JS

How to Draw Shapes with Different Colors in MapLibre GL JS

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2 min read
Why Reverse Geocoding Doesn’t Return the Exact Clicked Location

Why Reverse Geocoding Doesn’t Return the Exact Clicked Location

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4 min read
Is There a Free UK Postcode Lookup API?

Is There a Free UK Postcode Lookup API?

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4 min read
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