[Talk-ca] Help for Canvec to OSM for part of NB

Sun Nov 22 02:33:59 GMT 2009

Hi Frank

Yes I'm on Windows. Where I am today:
- installed GDAL 1.6.1 from 
http://pypi.python.org/packages/2.6/G/GDAL/GDAL-1.6.1.win32-py2.6.exe#md5=5e48c85a9ace1baad77dc26bb42ab4e1
this download location was referenced by http://pypi.python.org/pypi/GDAL/

In a cmd, window, I set path to include python, and try to run geobase2osm:

C:\OSM>set PATH=C:\OSM\Python26;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Cygwin\Bin;C:\Progr
am Files\Vim\vim72;C:\Program Files\QuickTime\QTSystem\;C:\Program Files\OpenVPN\bin

C:\OSM>python
Python 2.6.4 (r264:75708, Oct 26 2009, 08:23:19) [MSC v.1500 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> ^Z

C:\OSM>bin\geobase2osm.py
C:\OSM\bin\geobase2osm.py:5: DeprecationWarning: the sets module is deprecated
  import sets
Traceback (most recent call last):
  File "C:\OSM\bin\geobase2osm.py", line 10, in <module>
    import osgeo.ogr
  File "C:\OSM\Python26\lib\site-packages\osgeo\ogr.py", line 7, in <module>
    import _ogr
ImportError: DLL load failed: The specified module could not be found.

That line 7 has this:
import _ogr

Obviously it's trying to import something. Maybe the something is in a python egg GDAL-1.6.1-py2.6-win32.egg that's listed on the GDAL python package page. I have no idea what to do with a python egg but maybe it involves finding and installing "setuptools".... or maybe "easy_install" ....

????

John

________________________________
From: Frank Steggink <steggink at steggink.org>
To: JOHN SMART <smartowka at rogers.com>
Cc: talk-ca at openstreetmap.org
Sent: Sat, November 21, 2009 12:23:10 AM
Subject: Re: [Talk-ca] Help for Canvec to OSM for part of NB

Hi John,

It's been a while ago since I installed this. I didn't have GDAL on my machine before, so I'm using the latest version (still 1.6.2). And after the installation I didn't bother about it anymore ;)

Which OS are you using? If you're using Windows, then you should be able to use the installer for the Python version you're using at the bottom of the page. Maybe you also need to install GDAL 1.6.1, if you're currently using an older version, but it might still work if you have an older version. If you're not sure what to choose, you can best try to contact Howard Butler. He is the author of these bindings, and his e-mail address is listed on the page.

If this doesn't work for you, I could make a number of files available, which you can import. A while back I did that also for someone else, which worked well.

By the way, I forgot to add in my first mail that when you're using the Geobase files, you'll have the same attributes which are used in most of the country. This won't be the case for Canvec.

Hope this helps,

Frank

JOHN SMART wrote:
> Hi Frank
> 
> Thanks for your reply. I'll use the NRN data for now then. I have grabbed the NB NRN files, no problem there.
> 
> What I have done so far and where I am stuck now:
> -- following what's written in http://wiki.openstreetmap.org/wiki/Geobase2osm:
> - installed python 2.6 (I already had python 2.something as part of FWTools but python version is too early to support Shapely)
> - installed Shapely 1.0.14 under the Python directory tree
> 
> but now I am stuck at installing "OGR Python bindings osgeo.ogr Python GDAL" <http://pypi.python.org/pypi/GDAL/>
> Question: what, exactly, do I need to download and install here.
> Note that I already have the FWTools (http://fwtools.maptools.org) installation which includes GDAL and OGR.
> What more / different do I need, to satisfy this Python bindings requirement?
> 
> Am I still on the right track?
> 
> Thanks for any more help
> John
> 
> 
> ------------------------------------------------------------------------
> *From:* Frank Steggink <steggink at steggink.org>
> *To:* John Smart <smartowka at rogers.com>
> *Cc:* talk-ca at openstreetmap.org
> *Sent:* Thu, November 19, 2009 11:33:29 PM
> *Subject:* Re: [Talk-ca] Help for Canvec to OSM for part of NB
> 
> Hi John,
> 
> Thanks for looking at the scripts. Please see below.
> 
> John Smart wrote:
> > Hello
> >
> > I would like to take a shot at updating the OSM for some of New Brunswick, which presently does not have very much mapping compiled. The plan I think I'd like to follow is:
> >
> > 1. Select an NTS 1:50 000 area that has few roads and which has no OSM or minimal OSM.
> > 2. Run script(s) to generate OSM from the Canvec data set. At this point I am only interested in roads, to prove the process for that.
> > 3. Upload the OSM.
> > 4. Have some people (you?) review the data, make comments.
> > 5. Iterate the process a bit till quality good (or I give up!)
> > 6. If I'm still here, maybe add some more.
> >
> > Any comments on my plan are very welcome, especially helpful tips!
> > Regarding the road data, Canvec is derived from Geobase NRN, so it might be better to use the latter. The CITS guys here should be able to give a better answer ;) For Geobase NRN there is a different script, named geobase2osm.py [1].With that it is possible to convert certain areas (like a NTS tile) to an OSM file, and then you can use JOSM to import the data. There is a wiki page describing the Geobase process [2], but it still describes the convoluted process involving RoadMatcher.
> 
> The current process is:
> * create a bounds file for a certain area for geobase2osm.py
> * execute geobase2osm.py
> * download OSM data for this area from JOSM
> * open the resulting OSM file in JOSM
> * copy over the features which do not exist
> -> make sure you connect the new roads to the existing roads in OSM
> -> depending on the density of the data, it is generally better to work in multiple iterations
> * upload the data to OSM
> -> indicate in the description of the changeset that you imported data from Geobase for tile 999x00.
> 
> Several people on this list have experience with this process, so don't hesitate to ask any questions you might have.
> 
> For Canvec we're organizing a meeting in a few weeks, in order to get some experience with the import, and to work on the process.
> > The part I'm currently interested in is #2, generating OSM from Canvec. I saw on the mailing list that there is a python script called canvec_to_osm_features.py, and I have downloaded that. However, I have difficulty running it on my Windows XP box. Specifically:
> > - I can launch python (which I happen to have on my path)
> > - But if I just run "C:\Canvec2Osm>python canvec_to_osm_features.py --version" then nothing happens.
> >
> > I'd appreciate any comments on exactly what I need to do to get this .py script to work.
> > The script you should execute is canvec-to-osm.py. :) The other script only contains the list of features which should be imported. I separated it to make it easier to manage. (Unfortunately the second script file contains underscores, but I'll update that soon. Maybe I should just rename it to "features.py", so that it is immediately obvious that this script should not be called directly.)
> > Lastly (for now) I think that if I get the .py working, I will immediately run into a problem with shp-to-osm. Like the .py readme said, I have made a bin directory and I've put the shp-to-osm in there. Actually I have both:
> > 2009-11-11  17:37        7,365,493 shp-to-osm-0.7.3-jar-with-dependencies.jar
> > 2009-11-11  17:37        7,365,493 shp-to-osm.jar
> > in case there is some naming problem. Have I done the right thing?
> > Ian Dees always uses the longer name when building the jar file, so you only have to keep the first one. You'll learn quickly enough if the jar file can't be found for some reason :)
> 
> > Thanks for any help. I hope I won't get frustrated and that I'll be able to help the project a bit!
> Helping us would be wonderful. Especially New Brunswick still has large white areas, so it would be excellent to see that filled up!
> 
> Cheers,
> 
> Frank
> 
> [1] http://wiki.openstreetmap.org/wiki/Geobase2osm
> [2] http://wiki.openstreetmap.org/wiki/Geobase
> 
> 
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