- Since the OSM blogs are not able to display xml code with their Markdown stuff I post that entry here.
- (This is mostly a note to myself.)
- Download http://toolserver.org/~master/wiwosmlog/broken.php
- I will work on a subset of that data:
- grep mississippi broken.php> mississippi
- Filter for the ways:
- grep '"t":"w","l":""' mississippi > ways_mississippi
- Look if there is an wikipedia entry for each object - assuming all objects in Mississippi are from english WP.
- For not to overload anything I will limit the lookup to 100 objects:
- for i in $(less ways_mississippi | cut -d '"' -f 16|head -n 100|sed s/" "/_/g); do firefox http://en.wikipedia.org/wiki/"$i"; done
- Scroll through the opened tabs and watch carefully for glitches.
- While doing so I download the data using Overpass API into one single file:
- for i in $( less ways_mississippi | cut -d '"' -f 4|head -n 100); do wget - "http://overpass-api.de/api/interpreter?data=rel($i);out meta;" -O >> 100.osm ; done
- Looking at the WP entries there is a "no article" for "D". The next in the row would be Bilox, so I have a look at the data in the file near "Bilox".
- <tag k="wikipedia" v="D"Iberville,_Mississippi"/>
- caused that hiccup. Since also the names in several values are messed up (great import) and a spammy bot added an useless tag I correct this and go on.
- <a href="http://www.openstreetmap.org/browse/way/32950385">Have a look at this way</a>.
- Having found no further glitches while looking at the WP entries I can search and replace
- <tag k="wikipedia" v="
- <tag k="wikipedia" v="en:
- Remove the following xml headers and footers from the single downloads piped into 100.osm except the first and the last:
- <?xml version="1.0" encoding="UTF-8"?>
- <osm version="0.6" generator="Overpass API">
- <note>The data included in this document is from www.openstreetmap.org. The data is made available under ODbL.</note>
- <meta osm_base="2013-02-17T10:24:01Z"/>
- To replace underscores by blanks, I do the following:
- for i in $(grep ",_" 100.osm | grep wiki | grep _| cut -d '"' -f 4); do rpl "$i" "$(echo "$i"| sed s/"_"/" "/g)" 100.osm ; done
- Now I open the file with JOSM and make a fake edit to tell JOSM that the objects are changed. I do add something like "foo=bar" and remove it again immediately.
- To see if objects to upload are close to each other I now update the data (ctrl-u) which will fetch all depending stuff.
- With ways that would be the nodes for the ways, with relations all their members.
- Additionally we should get an conflict if any of the objects has been edited by an other user meanwhile. (Never had happened to me so far.)
- To not make one awful big changeset I do the following:
- Zoom to the region where the data is located.
- Select one changed object using middle click (changed, not uploaded objects are shown bold)
- If there are other changed objects in a reasonable distance select them too.
- Upload the selection pressing ctrl-alt-shift-u, space, enter (enter/change the changeset comment), enter.
- For better visualisation I've created a filter for "(child user:malenki) | user:malenki". After uploading some changes I press ctrl-alt-u and the objects selected, changed and uploaded will be hidden. Now I can see better which objects still remain.
- <a href="http://malenki.ch/OSM/Bilder/2013-02-17_142055_scr.png"><img src="http://malenki.ch/OSM/Bilder/2013-02-17_142055_scr.png" alt="JOSM with selected and filtered entries" width="500"/></a>
a guest Feb 17th, 2013 34 Never
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