WFS Feature merge/import

Marián Kyral mkyral at email.cz
Sat Feb 27 07:27:53 UTC 2021


Hi Flo,

Dne 19. 02. 21 v 22:37 Florian Lohoff napsal(a):
> Hi,
> in a part of Germany (NRW) we used to import large swaths of Buildings
> from an official source by tracing from WMS imagery. The tool was used
> Tracer2 - Today we have open data exports as a shape every 6 Months.
>
> I am looking for a method to point-and-click and import specific build
> outlines/parts into the OSM dataset much like the Workflow with tracer2.
>
> So - reusing lines/nodes, mergeing with neighboring buildings/nodes etc.
> I found the tracer-ng plugin which seems to have some WFS module (Lpis)
>
> https://github.com/mkyral/josm-tracer
>
> My idea was to quickly spin up a local geoserver (in docker) with the
> hu_nrw shape and use the wfs api to fetch features.
>
> It seems i need to copy the Lpis module and fixup some Lpis specific
> inner workings like projection and stuff.
>
> Or is there some other way for this kind of workflow? I think
> a more generic WFS based Plugin would be of great use for all kinds
> of manual data import/merge.
>
> Is there one? Somebody working on that?

I like an idea about generic WFS module. Question is, how to design it. 
Issue with LPIS is, that I need a two different requests to get all 
data. In one request I get properties like type and in second the 
geometry. So it is possible, that generic plugin will end in very 
complex code.

Marián
> Flo




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