[OSM-newbies] The BIG mapping picture
Ernst Radema
Radema at xs4all.nl
Sat May 2 19:00:46 BST 2009
Hello all,
Before I'll be able to answer my own question -as is obviously the intention
of this newbies-list- I would like to ask for some information. Not on
mapping details or (dis)functioning software features o rprograms, but on
the BIG picture of the mapping process.
In other words, what is the full process along which a map is created ?
As far as my current knowledge goes the process must be something like this:
. Recording of GPS-tracks as a collection of real word places.
. Editing of GPS-tracks: conversion of points to map elements:
roads, canals, POI, etc.
o Who decides and how is decided what all these points rare: eg in
Holland ( where I live ) you often encounter a canal, a street, a bike path
and a foot path next to each other.
. Storage of all this information in a huge database (done in steps
1 and 2 )
. Rendering of database information into visible map-images
o What are OSMarender ( sounds like OpenStreetMaps ) and
o Mapnik rendering ?
. Tiling: maps are cut into tiles of 0,25 x 0,25 degrees on a
Tile-server.
. Client request and presentation on a user interface
Is this -more- or less- how mapping Works? Is it completely else? Who has
more information, corrections, additions?
All reactions welcome (except for the flaming J) !
Ernst Radema
Amsterdam, The Netherlands
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/newbies/attachments/20090502/220ec5e1/attachment.html>
More information about the newbies
mailing list