Hi Y'all,
What qualifies as too many nodes? Do we have metrics for this? I can
apply some kind of simplification if we can quantify what we want...
cheers
ben
On 4/28/11 4:34 PM, Alan Millar wrote:
I've been checking some of the imported data and my general feel is that it is
overdigitized. I don't know if medium versus high reflects just the quality or
the amount of digitization. That would be something to check. One could also
just run some sort of simplification algorithm on all the data.
I definitely found this to be the case for some parts of the
area I did (Washington County, Oregon).
I particularly remember it on
areas like ponds and lakes; not so much on rivers and streams. Most of them
were reasonable, but a fair
number of them had way too many nodes.
I used the JOSM "simplify way" quite a bit, which worked perfectly in my
opinion.
It may be analogous to TIGER, in that NHD may have a composite dataset that got
created in multiple ways. It may show up more in some places than others.
- Alan
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