[OHM] Building Infrastructure for OHM ­­ RPA Historic Wetland Mapping

[Sanjay Seth]

Tim –

Thanks for the reply.

Is there any utility in developing a warp.openhistoricalmap.org instance as well, since we will already be installing some kind of tasks.openhistoricalmap.org in the near future?

The Wikimaps Warper integration with OHM iD makes a lot of sense. Very cool. It doesn’t seem like a good fit for this current project, though, as the lack of a Tasking Manager to control the workflow would make georeferencing and tracing ~175 maps a bit chaotic. That said, the ability to import batch import control points and images is awesome – and would be great for projects with a smaller number of maps and participants.

Best,
-s


—

Sanjay Seth | Research Analyst

Regional Plan Association

(917) 546-4327 | rpa.org


From: Tim Waters <chippy2005 at gmail.com<mailto:chippy2005 at gmail.com>>
Date: Tue, 3 Nov 2015 08:05:32 -0500
To: Sanjay Seth <sanjay at rpa.org<mailto:sanjay at rpa.org>>
Cc: Albin Larsson <albin.post at gmail.com<mailto:albin.post at gmail.com>>, "Historic at openstreetmap.org<mailto:Historic at openstreetmap.org>" <historic at openstreetmap.org<mailto:historic at openstreetmap.org>>
Subject: Re: [OHM] Building Infrastructure for OHM ­­ RPA Historic Wetland Mapping

Ahh yes, sorry, currently there are no plans for batch imports of maps for public users.

Organisations with hundreds or thousands of images tend to run their own warper instance and connect it up to their repository and metadata services, as everyone keeps their images and the data about the images in different formats etc. An example from the US Govt - http://warp.nepanode.anl.gov/ by the DoE / NEPA

One solution we are building for public organisations and their old maps is to add them to Wikimedia Commons and then import an entire Wiki Category into the Wikimaps Warper. That warper also has an embedded OpenHistoricalMap iD editor. This import process will be live before the end of the month. This is also the project which will have the ability to import batch control points.

Regards,

Tim




On 31 October 2015 at 18:21, Sanjay Seth <sanjay at rpa.org<mailto:sanjay at rpa.org>> wrote:
Thanks for the reply, Tim – and for building out a tool like mapwarper.net<http://mapwarper.net>.

I was thinking more about batch import of maps, rather than control points.

I've had a chance to play around with it a bit and was getting some of the distortion you mentioned, which is likely unavoidable. I'm going to test the same map in ArcGIS and in MapWarper – I have a feeling I will get a similar amount of distortion in each. Some of it may come down to adding points to adjust the map by eye.




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