[Talk-ca] Canvec/Geobase point feature - Render

Sam Vekemans acrosscanadatrails at gmail.com
Mon Mar 23 18:33:19 GMT 2009


Thanks,
Good call. :-)

The point feature "building=yes"  otherwise known as

point,CODE,2010010,canvec:CODE,2010010
point,CODE,2010010,building,yes

What it does is show up as a little house icon with JOSM

for the polygons, they show up as nice shapes.. and when clicked on would
simply state this this is a building.

outer,CODE,2010012,canvec:CODE,2010012
outer,CODE,2010012,building,yes
inner,CODE,2010012,canvec:CODE,2010012
inner,CODE,2010012,building,yes


I have not yet received the answer from NRCan about if the location of the
node is EXACTLY where the building actually is, or is it just shown in the
general area.  If it is the former, then this information can be taken into
account.

What i can do, and i presume that you all would agree, is to add this
feature to the "not4osm" folder so then it could be used as an assistant for
the person who is actually uploading the information.

However,  I would also agree that adding this feature would be similar to me
using the Aerial imagery and whereever i spot some "THING" that looks like a
building, quickly tag it as building=yes.  ... this information is
meaningless to the map user.  ... odds are, that right next to it is some
other 'building'.   Unless the purpose is clearly stated, we dont need to
include this feature.

And YES, there are other point features which need to be looked at to see if
they are actually useful.  As im going through the sharts, i'll now be
looking at it.

For example, when the feature lists 9 or so different feature types, the
general practice for both GeoBase & CanVec is to state "-1" unknown  and "0"
none ... i would suggest that these features be omitted from the import
also.

Any thoughts on that?

Cheers,
Sam

P.S. I was thinking of adding another column to the 11 themes of CanVec
charts, for "status"
PPS. I am still finding some features that were accidentally missed when i
was copying the data from the feature catelogue to the charts, so it's a
good idea to cross-check with the .pdf catelogue to find out what the actual
definition was. ~ probably 95% accurate, but always good to check :-)

Hi all,
>

> Two weeks ago, I worked on the import of CanVec-Buildings using Map feature
>
table on the wiki. I noticed at that time that point buildings imported as
>
building="yes" did not appear on the osm map. Sam probably rebembered the
>
discussion about it. So, I sent my question to the
>
tilesathome at openstreetmap.org. It appears that building="yes" will be
> <tilesathome at openstreetmap.org>

rendered on the map only if they are polygons.<tilesathome at openstreetmap.org>
> <tilesathome at openstreetmap.org>


> To conclude, I think there is no reason to import Canvec point building
>
unless they have specific functions. It may be true for other point
>
features. We should make sure before importing them.
>

> cheers,
>

> Michel
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/talk-ca/attachments/20090323/fa201c9d/attachment.html>


More information about the Talk-ca mailing list