Sam Vekemans wrote: > > > On Tue, Nov 17, 2009 at 12:10 PM, Ian Dees <[email protected] > <mailto:[email protected]>> wrote: > > On Tue, Nov 17, 2009 at 2:02 PM, Pieren <[email protected] > <mailto:[email protected]>> wrote: > > On Tue, Nov 17, 2009 at 8:20 PM, Emilie Laffray > <[email protected] <mailto:[email protected]>> > wrote: > > Ian Dees wrote: > >> Who wrote the Java program? I'd love to integrate that in > to shp-to-osm. > > Pieren did. > > > > I'm sure it can be coded in a better way, especially with a > real xml > parsing but it's fast and worked well: > > http://wiki.openstreetmap.org/wiki/WikiProject_Corine_Land_Cover/Corine_Data_Import#Removing_duplicate_nodes > > Ah, so this is only removing duplicate nodes and not creating > boundary relations out of exactly-overlapping ways. > > > I think thats 3 separate bugs. Where this this one handles nodes of a > way. and the next challenge is to handle polygons. and the next, > multi-polygon. > > It sound like thats the solution which would solve the > 'railways/rivers/powerlines/roads' map features of canvec. Sweet! > > It appears that scripts are around for each of them, it would be wild > if the script could 'detect; in the shp file as to if it's a polygon > or a multi-polygon. > > ... tipping beyond my comprehension, but its wild to see it all fall > together. :) > > and on another (similar note) > > Cool, so to answer my own question. Yes, it can be included as part > of the python script routeen, as another step, making a new .osm file. > :) > > Has anyone figured out how to slice that .osm file into a grid? So > that each grid piece can be made available (for people to manually > copy in what they like) (so that full.osm file is ALSO available) > > The only way that i know of is gpsbabel (might be able todo that). So > i think it would be a matter of having a script measure the size of > the area, and find the mid-point, and draw a line through the area. > (just like how in JOSM you can copy the top half and make a new layer > and past it, then delete) (in other words 'cut' and 'paste') but > doing this as part of a script instead of this manual way. If you are interested in a grid, I can whip up a quick SQL script within Postgres. It is very simple. I suspect I could do the same in C++ with more time with libgeos (which is powering Postgis). Since Ian is working in Java, I would suggest that he has a look at JTS in order to perform gis functions. He may be already doing it ( I haven't looked at the code of shp-to-osm in a long time now).
Emilie Laffray
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