[Imports] Import of SAU data - French Polynesia

[Violaine_Do]

Hello,

Just wanted to point out that I did some updates on the wiki while 
working on the data transformation :

* minor about fields (added some fixme, added a few fields)

* about geodesic system used : we finally chose not to transform to 
wgs84 because the local system has a topographic accuracy, and is close 
to wgs84 (OSM users won't see a difference : 30-50 cm with standard qgis 
tranformation, or 1.5m taking into account epoch). We are on the Pacific 
and the tectonic plate is moving of 7cm a year. So we chose to use the 
local system wich is fixed on time and ensure to keep orginal accuracy 
which is high and great value. Users won't create position error with 
inverse transformation. We have discussed the issue on french mailing 
list (discussion is linked on the wiki page of the import plan).

Have a great week end,

Violaine

On 30/08/2019 15:15, Violaine_Do wrote:
>
> Hello,
>
> The SAU (similar to national geographic institute, in French 
> Polynesia) has requested my support to import some of their data into 
> OSM. We have the licence agreement ok.
>
> We plan to start a first pilot with the commune of Arue, in order to 
> test the quality of our import process and improve it if needed.
>
> We would be very happy if you could bring your constructive inputs 
> about this, please have a look at wiki page dedicated for that, you 
> will find the data transformation scheme we used.
>
> The details are available on the wiki here 
> (https://wiki.openstreetmap.org/wiki/SAU_data_to_OSM) and you can also 
> check the Data transformation model here 
> (https://wiki.openstreetmap.org/wiki/SAU_data_to_OSM/Data_transformation_and_follow_up#Per_table 
> )
>
> We are looking forward for feedbacks from you before we proceed (from 
> october). Please let us know if there are any comments, questions or 
> concerns.
>
> Sincerely,
>
> Violaine, and SAU team
>
> -- 
> Violaine_Do (https://wiki.openstreetmap.org/wiki/User:Violaine_Do)
>
> _______________________________________________
> Imports mailing list
> Imports at openstreetmap.org
> https://lists.openstreetmap.org/listinfo/imports

-- 
Violaine_Do

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