On Fri, May 3, 2013 at 9:03 PM, Matthew Petroff <[email protected]>wrote:
> > Using QGIS, I assigned approximate street addresses to each building using > a > parcel map [3] and used the field calculator to clean up the labels and > remove > abbreviations. In addition, I removed all data that intersected with > existing > buildings to preserve existing work. I then separated the data into smaller > chunks and converted the Shapefiles to OSM with Merkaartor. After > simplifying > Merkaartor's output using osmconvert's "--drop-author" switch, I tagged the > data with sed, before finally using JOSM to remove duplicate vertices and > empty > tags. My only qualm with the data is that some buildings have more nodes > than > they need, but I'm not sure what can be done about it besides manually > reviewing > and simplifying all 200k+ outlines. > This is a great project. Having building outlines really helps when doing mapping parties. I would recommend doing a sample check of parcels and building outlines to verify that the combined data is accurate. And since you are using parcel data, is that also Public Domain? How many more nodes do typical building contain? We found importing building outlines in Seattle, that the imported outlines were much more detained, and accurate, than human drawn outlines. More nodes, but much richer looking outlines. I would recommend reading wiki.openstreetmap.org/wiki/Imports and adding your import to the catalog. You can use our import of buildings and addresses to Seattle as an example. See wiki.openstreetmap.org/wiki/SeattleImport Lastly, how do you plan to actually import the data? Are you using a script? If so what are you using? -- Clifford OpenStreetMap: Maps with a human touch
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