> On 28 Apr 2014, at 10:48 pm, Michael Gratton <[email protected] > So how accurate does it have to be? For example, I just downloaded Andrew's > ABS OSM converted datafile (thanks Andrew!), loaded it into JOSM, and have > been eyeballing the differences for the ABS version of Randwick with the LPI > cadastre using in SIX Maps. It's confidence is rated very good and I can see > that the ABS data matches quite well, but it's missing fine details such as > where the suburb falls entirely one one side of road rather than the > centerline, and some corners are a bit off.
When I'm doing a suburb boundary I think it's minimally important that each property is in the correct suburb. So sometimes that makes the road the boundary. At other times the property line not facing the road. I don't hesitate to modify the ABS data accordingly. What we are mapping is our very best estimate of where the suburb boundary lies. This is especially true for coastline. I think this is the best we can hope for with the data we have available to us today. Ian. _______________________________________________ Talk-au mailing list [email protected] https://lists.openstreetmap.org/listinfo/talk-au
