Topic-wise articles on spatial formats, coordinate systems, measurement and everyday GIS workflows — written around the tools in GeoToolBox.
A plain-language introduction to Geographic Information Systems: vector vs raster data, layers, attributes, coordinate systems, and where browser-based GIS tools fit in.
Compare the four most common vector GIS formats — GeoJSON, KML, WKT and Shapefile — and learn which to pick for web maps, Google Earth, databases and data exchange.
Understand WGS84 latitude/longitude, UTM zones, eastings and northings — and how to convert between them without breaking your data.
Why geodesic measurement beats pixel measurement, how projections distort area, and how to get trustworthy distance and area numbers from GeoJSON.
How buffer distances and simplification tolerances work, when each is appropriate, and how to shrink a heavy polygon without wrecking its shape.
Practical patterns for combining GeoJSON collections, splitting features into separate files, and turning a map into a printable PDF report.