Posts Tagged ‘geo’

Convert Rijksdriehoekscoördinaten to latitude/longitude
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Posted in php on October 23, 2009

Convert Rijksdriehoekscoördinaten to latitude ...

A Rijksdriehoekscoördinaat is used by the Dutch cadastre. Since all cadastre geo-data is not according the WGS84-standard, you need to convert a Rijksdriehoekscoördinaat (RD) to latitude / longitude values, for use in Google maps for example. You can convert them with this function P ... Continue Reading

Geo/Spatial search using Sphinx search and php
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Posted in php on October 20, 2009

Geo/Spatial search using Sphinx search and php

I have some databases with geo-location data in it, and wanted it displayed on my iPhone using Layar. Doing some research on this, I found a great presentation on Geo/Spatial search in MySQL. Reading this presentation shows that doing a search of geo-locations in a radius around a geo-loc ... Continue Reading