[ckan-dev] Tiff Files

Wed Mar 23 15:08:58 UTC 2016

*Per extending Mapwarper as a harvest source for CKAN...*

It's pretty ugly as we only did this as a test case, but it did work and
I'll add that MapWarper is a solid project we ran it for a year as a pilot
without incident. Here is the repo the work was done in -
https://github.com/DOE-NEPA/mapwarper - but there is alot of
extra/irrelevant code. So it might make more sense to start fresh from the
main project - https://github.com/timwaters/mapwarper and take the
following steps:

1. Add the Web Accessible Folder (WAF) index and XML view:
https://github.com/DOE-NEPA/mapwarper/blob/ruby1.9.1/app/views/maps/waf_index.html.erb
https://github.com/DOE-NEPA/mapwarper/blob/ruby1.9.1/app/views/maps/waf_show.xml.erb
 (*we used FGDC schema as for the test - but should've used ISO 19115 as
the xml template)

2.  Define the view's controller and remap the data attributes from the
existing model:
https://github.com/DOE-NEPA/mapwarper/blob/ruby1.9.1/app/controllers/maps_controller.rb#L22-L73

3. Register the new view to the route config:
https://github.com/DOE-NEPA/mapwarper/blob/ruby1.9.1/config/routes.rb#L4-L5

4. ... Point CKAN's WAF harvester at the {{ baseurl }}/waf to register the
records

*...for the curious, here are some existing/example Mapwarper instances out
there:*

   - http://maps.nypl.org/warper/
   - http://warp.worldmap.harvard.edu/
   - http://warper.mapstory.org/

On Wed, Mar 23, 2016 at 9:31 AM, John Jediny - XAAB <john.jediny at gsa.gov>
wrote:

> Mike all,
>
> I'll see if I can't bundle the links for our past mapwarper work.
>
> But if your interested in geoserver, why not just go with
> http://geonode.org. As it is just Geoserver with a Django UI that
> provides a way to offer user uploads of geotiffs (and shapefiles) through a
> Web UI and as it is already packaged with pyCSW... all you'd need is CKAN
> geoharvester to point at the CSW endpoint to sync the records...
> On Mar 23, 2016 4:28 AM, "Mike Sinclair" <mm.sinclair08 at gmail.com> wrote:
>
>>
>> Thanks for the responses. I think I will look at using GeoServer or
>> something similar to serve them.
>>
>> John, it would be awesome if you could provide those docs/code? That
>> sounds interesting.
>>
>> Cheers,
>>
>> Mike
>> ᐧ
>>
>> On Thu, Mar 17, 2016 at 8:46 AM, John Jediny - XAAB <john.jediny at gsa.gov>
>> wrote:
>>
>>> Probably not your particular use-case, but if someone needed to perform
>>> the actually georeferencing of an image and then register it to CKAN. A
>>> workflow to consider would be is using MapWarper
>>> <https://www.google.com/webhp?q=mapwarper> as a separate service to
>>> perform the georeferencing (work had already been done to expose each
>>> completed georeferenced image metadata as ISO and exposed these records in
>>> a Web Accessible Folder).
>>>
>>> This was then tested/proven using CKAN's geospatial harvester extension
>>> (WAFharvester), if anyone is interested lt me know and I can pull together
>>> some of the docs/steps/code to doing so.
>>>
>>> On Thu, Mar 17, 2016 at 4:09 AM, Derek Hohls <dhohls at csir.co.za> wrote:
>>>
>>>> Geoserver would be one way to go - you can use it to serve up, for
>>>> example, WMS from your TIFF and then visualise that via the GeoView plugin
>>>> - https://github.com/ckan/ckanext-geoview  (of course, there are other
>>>> tools to produce WMS - e.g. MapServer or QGIS Server)
>>>>
>>>> >>> Angelos Tzotsos <gcpp.kalxas at gmail.com> 03/16/16 9:48 PM >>>
>>>> Hi Mike,
>>>>
>>>> We have integrated CKAN with Rasdaman and GeoServer in PublicaMundi
>>>> project:
>>>> http://publicamundi.eu/
>>>>
>>>> Cheers,
>>>> Angelos
>>>>
>>>> On 03/16/2016 08:58 PM, Mike Sinclair wrote:
>>>>
>>>> Hi all!
>>>> Has anyone done anything with geocoded images in CKAN? Previewing and the
>>>> like?
>>>> Cheers.
>>>> Mike
>>>> ?
>>>>
>>>>
>>>>
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>>>> --
>>>> Angelos Tzotsos, PhD
>>>> OSGeo Charter Member
>>>> http://users.ntua.gr/tzotsos
>>>>
>>>>
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>>>
>>>
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>>> Chief Data Engineer
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-- 
Chief Data Engineer
202-341-0191
@Data.gov
@Office of Citizen Science and Innovative Technologies/18F
<http://www.gsa.gov/portal/category/25729>
General Services Administration

Work in the Open... ideate, innovate, iterate...
@github <https://github.com/JJediny> | @projectopendata
<https://github.com/project-open-data>
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