OJW's magic organ grinder

A set of scripts for turning OSM data into something usable

Download

(optional - or just start with planet.osm)

• create download filter
• download area from xapi

Process

http://svn.openstreetmap.org/applications/utils/export/osm2stuff/process.pl

• nodes,segments stored in memory, used for (todo:whatstheword)
• creates a textfile with interesting ways
• creates a textfile with interesting nodes

'interesting' means that it contains tags, where 'boring' tags like id, lat, created_by, etc. are ignored

Filter

• choose view definitions
• choose searchable items
• create object filter from union of those
• allocate type IDs to objects used
• creates new textfiles for ways and nodes

creates a textfile where each object has an enumerated type. e.g. 'highway=cycleway' => 'type 35'

Tile

• define a tilesize
• for each tile
  • copy ways which intersect
  • copy areas which surround or intersect
  • copy nodes which are within
    • (TODO: or if a specified bounding box around the node intersects?)
• creates a load of textfiles where each one contains enough data to draw the area within it

Pack

• iterate based on layer/level (to order result)
• pack into binary format
• create meta-info file
• create strings file

Code

All in http://svn.openstreetmap.org/applications/utils/export/osm2stuff/

Other similar projects

• OSM to (various databases)
• http://svn.openstreetmap.org/applications/utils/export/