developmentseed/zambia-buildings-import

Import process of Zambia buildings to OSM

zambia-buildings-import's Issues

Create Zambia extract

Creating the extracting for Zambia. Currently I am testing the script (extract-creation-script.js) on Baltimore to see if the script is working properly, it will then be run on the Africa dataset to create the Zambia extract.

QA source dataset

Check source dataset for overlapping polygons. Outline what we'll do if there are overlaps. Post final dataset.

Create import accounts/import process

Create designated import accounts for the Zambia import

Create Overlay (ST_Overlaps)

Includes two steps:

1. Translation of the Zambia-extract.geonjson into a Postgresql file and then 2. Overlaying the households dataset with the extract to figure out if there are redundancies that do not need to be included in the import.

Failed upload

So... for some reason my import got messed up. Instead of full polygons, the upload added only the nodes of each building. Resulting in this:

My initial uploads were added through 3 different changesets.

Original changeset	# nodes added	Revert changeset	# nodes reverted
#35128454	50001	#35244022	28314
#35133348	1632	#35241511	1632
#35133937	33111	#35253299	33111

For a full list, see my profile page

While I was able to revert a lot of the erroneous nodes using a revert script, I wasn't able to fully revert the first changeset. Running the script a second time on the same changeset doesn't work, resulting in these errors for the non-reverted nodes:

GET http://api.openstreetmap.org/api/0.6/node/3821043733/history... 200 OK (428b)
node 3821043733 was created; deleting
DELETE http://api.openstreetmap.org/api/0.6/node/3821043733... 409 Conflict (60b)
node 3821043733 cannot be deleted: 409 Conflict

@kamicut What's the most elegant way to tackle this? Diff both changesets for the remaining nodes and then batch delete them?

Post import update to Africa listserv

As soon as #2 checks out and #4 is complete, we will need to send an update to the Africa listserv to get input and review.

Conduct sample import

Conduct an import of a small amount of the houses data to test the import process

Post import plan to Imports listserv

Once #2 and #4 are complete, post update and plan to Imports listserv

Create wiki page

We've drafted a final proposal, ready to make a wiki page