[Talk-GB] [OHM] New York Public Library - Building Inspector

Tim Waters chippy2005 at gmail.com
Sun May 18 21:35:49 UTC 2014

Couple of things - building inspector update and British Library Goad maps.

Building Inspector update:

I've got it working and have put up an instance on heroku for the moment -
Works well and it can handle 10K rows in the database for free.

* It's just got about half of the NYPL data in it
* Only Twitter log in will work for it.
* Initially only the Check Polygons task will work until there's enough
that's been checked, and then the other tasks become unlocked.

The code is here: https://github.com/timwaters/building-inspector

So, it does require some configuring. We need:
* a tile set for the basemap
Also - some files like what's in
https://github.com/timwaters/building-inspector/tree/master/public/files :
* ingestor_config_builder.py run on the geotiffs
* The traced and centroid json files which I imagine are generated by the
vectorising process.

We'd also need to tweak the website blurb etc

Overall it should be quite easy to get a pilot area done.


British Library Goad Maps

Like the NYPL's maps - these are fire insurance maps of the 19th century -
they have various colours, addresses etc and great detail. They are the
perfect thing for our Building Inspector. In addition, the coverage is
immense. Major towns and cities in Ireland and the UK.


I've reached out via Twitter and via email to the Library asking for a
couple of maps for a pilot area to look at.



On 16 May 2014 19:57, Rob Nickerson <rob.j.nickerson at gmail.com> wrote:

> Thanks for you help Tim,
> The NYPL code is here:
> https://github.com/NYPL/building-inspector/
> I'm assuming it's rails as that's mentioned in some of the code commits,
> but I don't know any more than that.
> Best,
> Rob
> p.s. The code for vectorizing maps is also on GitHub. Chris has sent me a
> couple of GeoTIFs so I'm going to have a go with them this weekend.
> On 16 May 2014 12:51, Tim Waters <chippy2005 at gmail.com> wrote:
>> I might have some time this weekend to look at the Rails side of things
>> (that is, if no one else has made any progress)
>> Will ping back in a couple of days
>> Tim
>> On 12 May 2014 21:08, Rob Nickerson <rob.j.nickerson at gmail.com> wrote:
>>> Hi Steven,
>>> Thanks for the offer of help. Yesterday I managed to get the NYPL
>>> vectorizer working (this is the tool that has a first stab at creating
>>> vectors from the map). I did this on a small screenshot of NLS's London
>>> maps. I've asked Chris if he could send me a GeoTIF to do a larger scale
>>> test.
>>> Some of the key areas that I think need addressing:
>>> * Improving the automated vectorizer. Currently the vectorizer creates
>>> polygons of the inside of buildings (rather than following the wall). For a
>>> terraced street this produces a row of detached buildings. Some processing
>>> could improve this. I guess this could be done before, after, or both
>>> before and after the polygon has been processed by the human volunteers on
>>> the website.
>>> * The website looks like it's a Rails site. I would need a lot of help
>>> with this as it's an area I know very little about.
>>> Are you able to help with either of these?
>>> Kind regards,
>>> Rob
>>> On 12 May 2014 16:26, Steven Horner <steven at stevenhorner.com> wrote:
>>>> Hello,
>>>> I would be happy to help in anyway and have previously had a
>>>> conversation with Chris at NLS regarding helping georeference some of their
>>>> maps.
>>>> I had been looking into creating my own historical version of OSM for a
>>>> local personal project, when I looked a few weeks ago Open Historical Map
>>>> was down and was never very usable before that. It sounds like from the
>>>> WIKI things maybe starting to happen, date slider planned, etc.
>>>> regards,
>>>> Steven
>>>> On Sat, May 10, 2014 at 10:04 PM, Rob Nickerson <
>>>> rob.j.nickerson at gmail.com> wrote:
>>>>> Hi All, Historic Map folks,
>>>>> I have now heard from Chris at National Library of Scotland (NLS). He
>>>>> is very supportive* of the idea of using something similar to the NYPL
>>>>> Building Inspector software and website for digitizing some of NLS's
>>>>> historic maps. As NYPL have made all their software Open Source, it should
>>>>> be relatively easy to roll this out with NLS's (or other) maps.
>>>>> Who's interested in getting involved? You lot set the pace of this :-D
>>>>> Regards,
>>>>> Rob
>>>>> * NLS would be able to supply the scanned and geo-rectified maps. As
>>>>> with everyone else their ability to do any more is limited by their level
>>>>> of funding. This should not be a problem as we can self host the website.
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