A P2 deployment with a NHD layer

classic Classic list List threaded Threaded
2 messages Options
Reply | Threaded
Open this post in threaded view
|

A P2 deployment with a NHD layer

Paul Norman
For the last couple weeks I've been working on getting NHD into P2 and I've
now got a working preview at
http://took.paulnorman.ca/potlatch2/potlatch2.html

This P2 instance will take you to the east side of Missouri in the 0714
basin. This is the south end of the 07 region and covers part of Illinois.

The NHD layer is being served by snapshot-server off of my home computer so
it may be slow as it's not properly deployed and it's behind a home internet
connection.

With the styles that come up by default the gray lines with orange outlines
are features from NHD which aren't marked as completed and the fainter gray
with green have been marked as completed. I've marked some ponds as
completed where there weren't any signs of them on the imagery.

You can change the NHD style by going to Background -> Load Vector File.

The NHD tagging doesn't represent a finished product.

A few warnings:

- NHD represents riverbanks as giant polygons. These slow down my server and
it may take a while to respond. That's why I chose this starting point to
view, there aren't any giant ways right beside it.

- The tagging is not yet complete. The main impact in this basin is that
some points may have unconverted data. I believe all ways will be
appropriately tagged.

- The geometries are not simplified.

- Snapshot-server doesn't fit nicely into any of the traditional
classifications of imports. In any case, at this point it's a proof of
concept.

- I may at times randomly shut off the server as I do work with it.

- There may be some scaling issues with snapshot-server

- The default cyclestreets style for the NHD layer is not great

More information on the P2 merging tool can be be found at
http://wiki.openstreetmap.org/wiki/Potlatch_2_merging_tool



_______________________________________________
Talk-us mailing list
[hidden email]
http://lists.openstreetmap.org/listinfo/talk-us
Reply | Threaded
Open this post in threaded view
|

Re: A P2 deployment with a NHD layer

James Umbanhowar-5
This is really cool.  I have a few comments and questions about how this
will work, but I think this will be a great way to import the NHD.  

1.  Can you edit points and locations before you approve a feature?
This would be nice for both inaccurately located points, but also for
integrating with existing water features.

2.  I didn't quite understand marking feature as complete.  In your
email, you said that you marked ponds that didn't show up as complete.
Could there be different levels of approval/rejection of objects so that
complete= move into OSM database, remove= remove from import database,
survey= can't tell from bing imagery.  

3.  A few tagging nits:  

a. I still think that 46006 streams without names should be included.  I
don't know if it is from being in a wet place, but many streams in NC
that are a couple meters wide, have road bridges over them and flow
noticeably have no name (at least in the NHD).

b. I would rather have the dam as way features than node features.
Although it probably would be best to not have every little water pond's
dam imported.

James

On Sun, 2012-11-18 at 19:52 -0800, Paul Norman wrote:

> For the last couple weeks I've been working on getting NHD into P2 and I've
> now got a working preview at
> http://took.paulnorman.ca/potlatch2/potlatch2.html
>
> This P2 instance will take you to the east side of Missouri in the 0714
> basin. This is the south end of the 07 region and covers part of Illinois.
>
> The NHD layer is being served by snapshot-server off of my home computer so
> it may be slow as it's not properly deployed and it's behind a home internet
> connection.
>
> With the styles that come up by default the gray lines with orange outlines
> are features from NHD which aren't marked as completed and the fainter gray
> with green have been marked as completed. I've marked some ponds as
> completed where there weren't any signs of them on the imagery.
>
> You can change the NHD style by going to Background -> Load Vector File.
>
> The NHD tagging doesn't represent a finished product.
>
> A few warnings:
>
> - NHD represents riverbanks as giant polygons. These slow down my server and
> it may take a while to respond. That's why I chose this starting point to
> view, there aren't any giant ways right beside it.
>
> - The tagging is not yet complete. The main impact in this basin is that
> some points may have unconverted data. I believe all ways will be
> appropriately tagged.
>
> - The geometries are not simplified.
>
> - Snapshot-server doesn't fit nicely into any of the traditional
> classifications of imports. In any case, at this point it's a proof of
> concept.
>
> - I may at times randomly shut off the server as I do work with it.
>
> - There may be some scaling issues with snapshot-server
>
> - The default cyclestreets style for the NHD layer is not great
>
> More information on the P2 merging tool can be be found at
> http://wiki.openstreetmap.org/wiki/Potlatch_2_merging_tool
>
>
>
> _______________________________________________
> Talk-us mailing list
> [hidden email]
> http://lists.openstreetmap.org/listinfo/talk-us



_______________________________________________
Talk-us mailing list
[hidden email]
http://lists.openstreetmap.org/listinfo/talk-us