James, This sounds interesting - to make sure I understand are you saying that you can use gdalcontour to process image files and extract boundaries from it....like forests from satellite images? I had never thought of doing that - what a good idea! I thought it would only have worked with monochrome images.
I would really like this because I am keen to add forests to the map to help with outdoor navigation, but my eyes are not up to tracing them from satellite images. Is this something that could be automated into an editor to highlight areas you might want to trace around? Regards Graham. On 10 March 2010 20:25, [email protected] < [email protected]> wrote: > I have not done any monster forests, It is just in the beginning. > > Feel free to try the program on a big file, I would be interested to know > how it works. > any bug reports will be processed asap. > > I have updated the blog post, at the bottom you will see two features i > extracted and the source. > > I hope to have some more results soon, > > mike > > > On Wed, Mar 10, 2010 at 9:21 PM, Nic Roets <[email protected]> wrote: > >> On Wed, Mar 10, 2010 at 8:54 PM, [email protected] >> <[email protected]> wrote: >> ... >> > Now my code works in a single pass, at least over the entire data. It >> builds >> ... >> > This can be optimized further. I have exploited the following >> optimisations >> ... >> >> I process the entire planet every week (+- 5 passes, +-12 counting >> compression and decompression). I guess I'll be able to cope if the >> planet grows by 40% p.a, but you make it sound if that is too slow for >> you. >> >> On a less "predicting the future" topic: Can you please point me to >> some of these monster forests or lakes you've uploaded, so that I can >> check that my software can handle them ? What about Potlatch ? >> > > > _______________________________________________ > dev mailing list > [email protected] > http://lists.openstreetmap.org/listinfo/dev > > -- Dr. Graham Jones Hartlepool, UK email: [email protected]
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