[OSM-Talk-ZA] High Resolution Aerial Imagery of Cape Town (8cm)

[Grant Slater]

Hi OpenStreetMap ZA,

I've been able to get permission for OpenStreetMap to use the City of
Cape Town's very high resolution 2015 aerial imagery (8cm). I
collected a copy of the imagery last month.

It will be available in JOSM and iD in a few weeks time.

In the mean time, here is a quick preview:
http://coct.aerial.openstreetmap.org.za/

The imagery is expressly ONLY FOR OPENSTREETMAP USAGE. I would have
preferred it be open to all, but wasn't able to negotiate this with
CoCT.
Note CoCT list the imagery on their Open Data portal:
https://web1.capetown.gov.za/web1/OpenDataPortal/DatasetDetail?DatasetName=Aerial%20photography

Due to continental drift and the conversion between Hartbeeshoek94 and
WGS84 (as used by OSM) the imagery is *currently* around 66cm offset
(2016 - 1994 = 22 years. Drift ~3cm per year). I am busy processing
the imagery to correct this, hence the delay in getting it into OSM
editors.

Kind regards,

Grant