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- Sun Mar 14, 2004 9:53 am
- Forum: PHP - Code
- Topic: circular buffer around a central point
- Replies: 1
- Views: 250
circular buffer around a central point
I have a database full of OS grid references related to postcodes. I need to be able to extract all postcodes that appear a certain distance away from a postcode that a user enters. so... 1. user enters postcode into form 2. easting (horizontal) and northing (vertical) grid references for entered po...