2010-04-07

O/S Data

OK so I have downloaded all of the free O/S data and trying to work out what to do with it :-)

For a start, the 1 pixel per m² street level map tiles are fun. They are done as 5km x 5km tiff images, so I'll be re-tiling them I think. They only show road and building data not general terrain, etc. But are rather fun.

Royal Mail must be pissed though - as they charge for postzone (postcode to grid ref mapping) and O/S just gave it away free :-)

OK... rant - some of the O/S grids use lower case filenames and some use upper case and no consistency. Arrrg!
at

2 comments:

  1. RevKSaturday 10 April 2010 at 07:36:00 BST

    Just making tiles is hard work - takes the poor server days.

    10,586 tiles of 5km x 5km makes
    264,650 tiles of 1km x 1km makes
    26,465,000 tiles of 100m x 100m

    That is a lot of files :-)

    ReplyDelete
  2. Matthew NewtonTuesday 13 April 2010 at 15:42:00 BST

    Now you know the amount of pain that OpenStreetMap have with map tiles :-) (and that's the world over, not just the UK)

    ReplyDelete

Comments are moderated purely to filter out obvious spam, but it means they may not show immediately.

Subscribe to: Post Comments (Atom)

Breaking my heart

One of the things I suffer from is tachycardia. My first memory of this was in secondary school, when I got a flat tyre cycling to school an...

  • It's official, ADSL works over wet string
    Broadband services are a wonderful innovation of our time, using multiple frequency  bands  (hence the name) to carry signals over wires (us...
  • Air conditioning at home (planning permission!)
    For many years I used a small stand-alone air-conditioning unit in my study (the box room in the house) and I even had a hole in the wall fo...
  • EICAR test QR
    It seems there is something of a standard test string for anti virus ( wikipedia has more on this). The idea is that systems that look fo...