[Imports] canvec-to-osm 0.9.6 now available

James A. Treacy treacy at debian.org
Sat Nov 7 15:48:53 GMT 2009


Frank,
Some more issues to add to the list.

There are cases where the same way exists in different data sets but
with different uses. A good example is that islands in the waterbody
data are often repeated in the wooded data (if the island happens to
be wooded, which happens a lot). Importing one set after another leads
to duplicated ways. This case is time consuming to fix because you
have to reconcile two ways and a relation. This same issue arises with
wetlands. Probably others too but these are the ones I've encountered
most often.

It would be wonderful if this was handled automatically, but as you
stated merging the different data sets for a more sophisticated
analysis of the data would lead to massive files.

Another issue is how the data is partitioned. It would be really
helpful if they were divided by geographical area. Currently there
are a number of files sparsely populated with features (040P07 has 23
files for Wooded_area). If you are working on one area you need to
import all the files which defeats the purpose of splitting them in
the first place.

Please don't suggest importing the current files one at a time as you
can't download that large an area at once from openstreetmap. One
could do a mass upload of each file but I thought that was frowned
upon. Additionally, it means uploading without running the validator
(resulting in duplicated nodes & ways).

-- 
James Treacy
treacy at debian.org




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