[Talk-ca] Question on CANVEC

[Andrew]

	I agree, that the large polygons, are a pain. I would second the idea
of deleting and recreating the wooded areas from imagery. I don't think
I would go so far to say all of the canvec imported data is bad. i.e.
Lakes, rivers, roads, address data, train tracks, etc.

	I must from the camp where the goal is to "improve the quality of the
map even if it is from an incremental point. (i.e. no data to some data)
or I guess (no data to PIA data? :-)


Andrew
aka CanvecImports.
aka I guess, one of the "offenders" :-)


On Tue, 2014-07-22 at 09:25 -0500, Harald Kliems wrote:
> Just delete and recreate. There have been several discussions on this
> list about the data quality of the landuse data and if it should've
> been imported in the first place (no data vs. bad data). Working with
> gigantic multipolygons is indeed a pain and I don't think there is any
> value to preserving the import data. 
> 
> 
> Just my two cents,
>  Harald.
> 
> 
> On Tue, Jul 22, 2014 at 8:36 AM, Adam Martin <s.adam.martin at gmail.com>
> wrote:
>         Hey all,
>         
>         
>         I have a quick question on data that has been imported from
>         CANVEC. I have been doing some work on the North-West side of
>         Thunder Bay in Ontario. Part of that has been attempting to
>         revamp the land use designations there. At the moment, the use
>         has been entered via CANVEC import, but a review comparing
>         that data to the actual land underneath from the Satellite
>         shows fairly large variances. As well, the "Wood" polygon
>         itself is oddly shaped, with squared lines denoting where it
>         two CANVEC products were imported side by side.
>         
>         
>         Large multi-polygon areas like these are impossible to edit in
>         ID and still difficult in JOSM. So my question is this - if I
>         am editing the area, what is the perception on deleting the
>         main "Wood" polygon altogether and re-creating it? My intent
>         would be to increase the accuracy of the map in the area based
>         on the satellite data provided by Bing and this would be
>         easier if the land use were cleared and re-built. I would
>         leave the features that CANVEC imported - only the land use
>         would be re-constructed in that case. The other components
>         would simply be moved and edited as needed.
>         
>         
>         Thanks,
>         
>         
>         Adam
>         
>         
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