[OSM-talk] using SRTM contours when editing

Steve Hill steve at nexusuk.org
Mon Sep 15 11:07:13 BST 2008


On Sun, 14 Sep 2008, Andy Allan wrote:

> And I might try full-world contours at some point to see how slow it 
> gets with several gigs in postgis!

Time to buy a bigger hard drive? :)

Actually, I suspect PostGIS will probably cope quite well (speed wise) 
since it is a spacial database and should be able to cheaply select 
contours within the requested region.  Tiles which contain a lot of 
contours will be much slower to render than flatter areas though.

  - Steve
    xmpp:steve at nexusuk.org   sip:steve at nexusuk.org   http://www.nexusuk.org/

      Servatis a periculum, servatis a maleficum - Whisper, Evanescence





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