I'm interested in helping, but with the caveat that I don't have much free time available to commit.<div><br></div><div>- Dan<br><br><div class="gmail_quote">On Wed, Dec 2, 2009 at 9:42 AM, Apollinaris Schoell <span dir="ltr"><<a href="mailto:aschoell@gmail.com">aschoell@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">we have some very detailed data for vegetation in California and try to make a plan for an import.<br>
Has anyone done something similar for US. Any locals interested to help? It's a huge dataset and needs some major work to be really useful.<br>
some challenges are<br>
- simplification to reduce number of nodes. there are many redundant nodes and duplicates<br>
- smoothing edges, resolution is ~5m grid and rendering looks ugly this way, some spline interpolation could really make it similar to USGS maps style<br>
- areas duplicate nodes/lines in shape files, this should be converted to line segments and relations to avoid duplicate lines in osm. Still no simple solution for that as far as I know<br>
- filter out useless features, urban, residential, … areas are already covered in better ways and should be skipped<br>
- propose tagging scheme, current tags don't support all the details in this data but should be used as much as possible to get rendering for most features<br>
- find local experts to verify fix and upload the data.<br>
- documentation on the wiki<br>
</blockquote></div><br></div>