I'm happy to hear that you spoke with some other members of the community, but I'm not satisfied that the import is technically sound.
As someone that has performed several imports incorrectly (NHD and county borders to name a couple), I can tell you already that your import will fail since you are uploading 50,000 nodes at a time. If any of these nodes are touched before you start uploading ways (changing their version number), then that entire chunk of ways will fail, leaving millions of "orphaned nodes" without a way. Also, presumably these parcel data consist of polygons that abut each other? Have you written your OSM code in a manner that deals with overlapping ways? If you have two 4-node polygons with an overlapping edge, do the nodes overlap? Is there one node attached to the two ways? Do you create a relation for each polygon with the shared edge sitting in both relations? As you can see, imports like this are very complicated and should not be dumped into OSM without lots of vetting and testing. Ideally, the community would help you import it. While I'm happy to hear that Arkansas and ESRI are working OSM on this, I don't think it's quite ready for prime time yet. -Ian On Mon, Mar 28, 2011 at 2:21 PM, Marten Hogeweg <[email protected]> wrote: > Hi Ian, > > > > We have had other responses from OSM contributors and are working with the > State of Arkansas and those folks tell us there is no issue contributing > this data to OSM. We also see various places around the world that have the > parcel boundaries loaded into OSM and some of those are featured as ‘best of > OSM’. We do not see it as a data dump. > > > > Kind regards, > > > > Marten > > > > *From:* Ian Dees [mailto:[email protected]] > *Sent:* Monday, March 28, 2011 12:14 PM > *To:* Al Pascual > *Cc:* [email protected]; Christine White; Marten Hogeweg > *Subject:* Re: [Imports] Importing Arkansas data > > > > Hi Al et al, > > > > I noticed (http://www.openstreetmap.org/user/Al%20Pascual/edits) that have > decided to go forward with your parcel import even though we expressed our > wishes that you do not (or at least that we talk about it more). > > > > Can you at least answer the questions I posed earlier before continuing > dumping this data into OSM? > > > > -Ian > > > > On Mon, Mar 21, 2011 at 12:29 PM, Al Pascual <[email protected]> wrote: > > Imports, > > > > The state of Arkansas provided the data in shapefiles to be uploaded to > OpenStreetMaps, we prepared the parcel data to be uploaded making sure they > are not duplicates of parcel data in Arkansas, also we have all road data > for the state that we will like to upload, we wrote a tool that using ArcGIS > Editor for OpenStreetMap 1.1 detects duplicates by how many collisions and > intersections we found and only uploads the ways that do not have any > collision. > > > > Let us know if you have any questions. > > > > Cheers > > Al > > > > *Al Pascual* > > ESRI Professional Services > > Office:(909)793-2853 x1045 > > [image: Description: Followme] <http://twitter.com/alpascual> > > > > [image: Description: esri] > > > > > > > _______________________________________________ > Imports mailing list > [email protected] > http://lists.openstreetmap.org/listinfo/imports > > >
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