Hi all, I've been updating my gml2osm script during all day, feeding it with the Naga City data, which is in the public domain. Re-read the "talk" list for more info on that data.
You can download the resulting .osm file (can be opened in JOSM, etc) from http://blackspark.homelinux.net/landuse2000.osm - please be kind with my crappy *DSL upload bandwidth. My problem is, I've converted a bunch of multipolygons from GML, defining the land use. And: - They are "areas with holes". - Every area boundary overlaps every other. Seeing that I'm duplicating the number of neccesary ways (and using every node in two different, overlapping ways), my questions are: Woudln't it make sense to use relations to build polygons for any kind of area, thus reusing ways? The ways should then be the edges of a graph, the graph nodes being nodes with three or more ways diverting from then, and any areas would be the graph loops. (Using that model would even simplify by half some steps of rendering, such as bezier-curve-hinting area boundaries) If I use a relation of ways (making up a ring) as the outer (or inner) hull of a multipolygon relation[2], will it work? [1] http://wiki.openstreetmap.org/index.php/Relations/Proposed/Boundaries [2] http://wiki.openstreetmap.org/index.php/Relations/Multipolygon -- ---------------------------------- Iván Sánchez Ortega <[EMAIL PROTECTED]> Proudly running Debian Linux with 2.6.24-1-amd64 kernel, KDE 3.5.9, and PHP 5.2.5-3 generating this signature. Uptime: 03:11:12 up 5 days, 13:52, 2 users, load average: 0.92, 1.04, 0.89
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