[Talk-us] NHD import and conversion - sample data

[Ian Dees]

On Fri, Apr 29, 2011 at 10:49 AM, Ben Supnik <bsupnik at xsquawkbox.net> wrote:
>
>  3.  Duplicate nodes need to be merged, especially in the flowline files.
>>  The
>> data currently have duplicate nodes a every point where one reach
>> intersects
>> another.  This creates many duplicate nodes.  The Corine data import folks
>> wrote a java tool to remove these
>> (
>> http://wiki.openstreetmap.org/wiki/WikiProject_Corine_Land_Cover/Corine_Data_Import
>> )
>> which I use to remove the duplicate nodes.
>>
>
> With some modification, that seems to have worked.
>

I've been meaning to add a "node dedupe" step to the shp-to-osm suite. I'd
love to see what you had to modify to get it to work. I'd also like to add a
"way dedupe" at some point, too (to handle abutting areas like boundaries).


>         g.  In points and lines files there were many things that had no
>> osm tags
>> including gauging stations and nonearthen shores.  We should not import
>> things
>> that have no osm tags.
>>
>
> Hrm...interesting.  The tools don't currently strip untagged data, do they?
>  Is there an existing tool that strips 'null' data?
>
>
There is an option (I think it's the "-t" flag?) to shp-to-osm to only
include OSM primitives that had tags applied.
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