Tag Archives: PostGIS

The problems with representing GPX tracks in spatial databases

This is something I’ve been wrestling with for a while, both with Spatialite and latterly with Postgis. The problems stem from the fact that a GPX track segment contains information that can be represented in two entirely different ways in … Continue reading

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Speed Map of Berlin

I’ve been experimenting with Mathieu Baudier’s PostgreSQL / PostGIS importer for our tracks (I’ll write about this later soon) and visualising my database of tracks in QGIS. Many possibilities become available. Mathieu’s importer calculates speed for every vector in the … Continue reading

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