[talk-au] Importing Hobsons Bay City Council tree data into OSM

Sebastian Spiess mapping at consebt.de
Mon Apr 15 14:15:02 UTC 2019


Hi David, thanks for your explanation.

I think it is good practice to use a separate import account, so good on
you!

On 15/4/19 11:17 pm, David Sisourath wrote:
>
> Hi Sebastian,
>
>  
>
> Thanks for the feedback. The trees seen in the adjacent Wyndham City
> Council have actually been manually mapped by another contributor.
>
>  
>
> I will change the changeset comments to be ‘Hobsons Bay Tree Import
>https://wiki.openstreetmap.org/wiki/Import/Catalogue/Hobsons_Bay_City_Council’.
>
>  
>
> I have also decided to create a dedicated OSM account for the import.
> This will be called HobsonsBayCityCouncil_Import with the user
> description linking to the import page.
>
>  
>
> Let me know if anything on the import page is unclear or if anything
> needs changing. I will be undertaking another test import, this time
> in an area with existing trees.
>
>  
>
> Thanks,
>
> David
>
>  
>
> ------------------------------------------------------------------------
> *From:* Sebastian Spiess <mapping at consebt.de>
> *Sent:* Monday, April 15, 2019 10:31:36 PM
> *To:* David Sisourath; Andrew Harvey
> *Cc:* talk-au at openstreetmap.org
> *Subject:* Re: [talk-au] Importing Hobsons Bay City Council tree data
> into OSM
>  
>
> Hi David,
>
> I'd like to say that the test import looks very impressive on the map.
> Thank you for your effort on this.
>
> Are there guidelines how to mark the import in the changeset? Not
> having read up on it but I would think the changeset should reference
> the wiki page for the import?
>
> For those who are interested in the import, see the wiki here:
> https://wiki.openstreetmap.org/wiki/Import/Catalogue/Hobsons_Bay_City_Council
>
> Cheers, Seb
>
>
> On 14/4/19 10:45 pm, David Sisourath wrote:
>>
>> Thanks Andrew, I have looked at all of the tags in the raw data and
>> have created a Python file to process this.
>>
>>  
>>
>> I have considered the ‘Unknown’, ‘Not Applicable’ and also removed
>> the trees where they are ‘stumps’ or ‘vacant’.
>>
>>  
>>
>> The data is linked here:
>>
>> https://data.gov.au/dataset/ds-dga-80051ffe-04d5-4602-b15b-60e0d0e3d153/
>>
>>  
>>
>> I have actually proceeded with a test import on a small area in
>> Seabrook. A reason why I think a source tag would be useful is the
>> identification of imported trees in subsequent updates from Council
>> being imported.
>>
>>  
>>
>> I note that this test import is easily reversible by me if plans do
>> not eventuate.
>>
>>  
>>
>> The test import changeset is here:
>>
>> https://www.openstreetmap.org/changeset/69182499#map=16/-37.8860/144.7627
>>
>>  
>>
>> Also, there is a non-existent boundary through Seabrook Primary
>> School that renders on Mapnik. I noticed this during the test import
>> and am unsure of the issue here.
>>
>>  
>>
>>  
>>
>> Regards,
>>
>>  
>>
>> David
>>
>>  
>>
>>  
>>
>> ------------------------------------------------------------------------
>> *From:* Andrew Harvey <andrew.harvey4 at gmail.com>
>> *Sent:* Sunday, April 14, 2019 9:56:38 PM
>> *To:* David Sisourath
>> *Cc:* talk-au at openstreetmap.org
>> *Subject:* Re: [talk-au] Importing Hobsons Bay City Council tree data
>> into OSM
>>  
>> Great working on sourcing those waivers!
>>
>> Do you either have a sample .osm file or could you post an example of
>> what tags/values will be imported? Can you say anything further about
>> how you will transform the data? ie. removing "Unknown" values etc.
>>
>> Regarding the source tag, I think it must be on the changeset, but
>> can optionally be on each object as well. It was once pointed out to
>> me that the source on the object may lead to editors thinking they
>> can't change/touch the object, and it can also be misleading when
>> changes subsequently happen. Mind you, I still add source,
>> source:geometry, source:name etc. tags where I feel it's appropriate
>> manually, I just don't think it's essential to have them on each object.
>>
>> Feel free to post a link to this
>> thread https://lists.openstreetmap.org/pipermail/talk-au/2019-April/012577.html as
>> a changeset tag or comment to help link the import back to this
>> discussion.
>>
>> On Sun, 14 Apr 2019 at 15:35, David Sisourath
>> <david.sisourath at hotmail.com <mailto:david.sisourath at hotmail.com>> wrote:
>>
>>     Hi,
>>
>>      
>>
>>     I intend to import tree data in the Hobsons Bay LGA into OSM.
>>
>>      
>>
>>     The data has been verified by myself with aerial imagery and
>>     DELWP/VicMap boundaries.
>>
>>      
>>
>>     I will be importing small squares of data at a time, including
>>     the tree circumference, species (if known) or genus (if species
>>     unknown). Tree circumference in the data are grouped by ranges of
>>     150mm. I have taken the maximum of these ranges to be the
>>     circumference in my code.
>>
>>      
>>
>>     A source tag will be attached to each tree node imported,
>>     source=data.gov.au:Hobsons Bay City Council, and also on the
>>     relevant changesets.
>>
>>      
>>
>>     A waiver has been signed by Hobsons Bay and is available on both
>>     the Australian Data Catalogue page and the Contributors
>>     <https://wiki.openstreetmap.org/wiki/Contributors#Hobsons_Bay_City_Council_data>
>>     page.
>>
>>      
>>
>>     Any questions or feedback regarding the import would be highly
>>     appreciated, including whether the approach to the circumference
>>     tag, and source tag is acceptable.
>>
>>      
>>
>>      
>>
>>     Regards,
>>
>>      
>>
>>     David
>>
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