[Tilesathome] Osmosis Questions

[Brent Easton]

Hi Brett,

I started to write a new program to split up t at h .osm files. Fortunately, I checked out Osmosis before I got too far. It does most of what I want.

The resource problem in t at h is being caused by the large size of the Z16 and Z17 svg files.  What I want to try is to use Osmosis with the bounding box option to cut the .osm file into strips and then create smaller svg files. For Z >12, the SVG files are processed strip by strip anyway. This should (theoretically) completely solve the current problems with unrenderable tiles.

The only problem I can forsee is with ways that will cross one of the stripes without having a node within the stripe. I checked the source and AFAICS, Osmosis only include ways that have a node within the bounding box. It looks to me like it would be a pretty simple to change to AreaFilter and BoundingBoxFilter also include ways that cross the bounding box. Perhaps this feature should be turned on with an additional parameter?

Thoughts?

Thanks,
Brent.




____________________________________________________________
Brent Easton                       
Analyst/Programmer                               
University of Western Sydney                                   
Email: b.easton at uws.edu.au