Since someone mentioned the Mumbai Freemap [1] into OSM, I thought I would finally introduce myself to the list. I am coordinator of the project, which was developed in 2005-2006 to showcase the kind of geo-data being collected by volunteers in Mumbai's architect and activist communities connected to CRIT (Collective Research Initiatives Trust) [2].
The data itself is poorly formed, having been originally drawn in AutoCAD without geographic attributes and retrospectively warped into shape files from sets of disconnected lines and attribute tables [3]. In our community mapping project, we now hope to merge our base layers into OSM and train groups in JOSM to detail particular areas, which we can use as the basis for projects on public spaces, community housing and heritage conservation in Mumbai. For some time now we have wanted to contribute this data to OSM, and we now have devoted funds from UNDP [4] which we plan to use in support of OSM as an infrastructure for our research and design practice. Earlier this year Mikel Maron and Schuyler Erle organised a series of Freemap/OSM workshops [5] which seeded new communities in cities across India, and in Mumbai generated significant interest. We think that the existing Mumbai Freemap is mostly useful as a backdrop (WMS) against which new nodes and relations need to be traced and tagged within OSM, and we are determined to migrate our vector data into OSM in stages over the next few months. Chris Schmidt wrote this script [6] to migrate MassGIS shape files into OSM. Any suggestions on how best to approach this SHP to OSM migration and the wider goals of our project are most welcome! Best, Shekhar [1] http://mumbai.freemap.in [2] http://crit.org.in [3] http://wiki.freemap.in/moin.cgi/MumbaiFreeMapDatabase [4] http://www.apdip.net/projects/ictrnd/2005/l43-in/ [5] http://wiki.freemap.in/moin.cgi/FreeMapIndia2008 [6] http://boston.freemap.in/osm/files/mgis_to_osm.py 2008/7/5 Nathan Vander Wilt <[EMAIL PROTECTED]>: > On Jul 5, 2008, at 1:01 AM, Kenneth Gonsalves wrote: > > On 05-Jul-08, at 3:24 AM, Frederik Ramm wrote > >> > >>> everything is AND and everything is consistently out of place to > >>> the southeast with the same offset - is there any way to > >>> programmatically change this? > >> > >> I have a script that I could use for this task if people want. > >> Obviously I'd need to know exactly what to move and by what amount... > > > > cool - will measure the offset and revert > > Are you sure this isn't a coordinate system datum issue? If the AND > data uses a different datum than WGS-84, it may be more than just a > simple offset for all vertices that you need. There are several open > source programs available for converting from one datum to another. > What datum is the original AND data in? > > thanks, > -natevw > > _______________________________________________ > talk mailing list > talk@openstreetmap.org > http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk > -- Shekhar Krishnan 9 Supriya, 2nd Floor Plot 709, Parsee Colony Road no.4 Dadar, Mumbai 400014 India http://web.mit.edu/shekhar http://heptanesia.net http://bombayology.net
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