I've found very nice web wikimapia.org that deals with geographical objects using the rectangle boarder area approximation, but it lacks web service interface for reverse geocoding. Area borders are very important especially in case of cities with large area like London or mountain ranges. I had suggested similar approximation hear in this forum (using elliptical approximation), but I was rejected that you are waiting and searching for more precise data that enable you to show exact area borders.
I'm afraid that this data aren't and will not be free in the near future (I also know about your experiments to analyze satellite images)
Wouldn't be possible to reconsider my suggestion for rough e.g. rectangle area object approximation until the more precise data are available? Wouldn't be possible to cooperate with wikimapia server and use your web service interface? Or would it be possible to use wikimapia data for you initial upload and that use your modified web editor to enter rectangle area data?
As far as I know wikimapia is a pure end-user application with no api or download possibilities. GeoNames in contast is a developer resource. The goal of GeoNames is to provide application developers with data and webservices.
I agree with you that in the short term we will not have any good polygon data from official sources. Would you like to help develop a polygon edit interface?
Hi
As far as I know wikimapia is a pure end-user application with no api or download possibilities.
Now, you are true, but they already have an api specification and they are going to provide web services. See http://wikimapia.org/forum/?t=81
marc wrote:
I agree with you that in the short term we will not have any good polygon data from official sources. Would you like to help develop a polygon edit interface?
Yes, I'd like to help you with it. But in the next fortnight I'll be offline as I have vacation in mountains. I'll be available since 4th August.
Polylines could be edited by means of google maps scripting library.
Google polyline editor has very nice ability of "fractal" refinement of the polyline path so "rough" geoname border can be drawn very fast and there is still easy open way to refine the border further...