[Talk-GB] Update: Deploying our own version of NYPL Building Inspector
chippy2005 at gmail.com
Mon Jun 2 14:15:21 UTC 2014
here's my thoughts
Remember that people will fix the automatic vectorisations if they are off
- they can also add extra buildings if need be also.
I think we have enough to move it forward and see what happens. As the NYPL
Building Inspector says: "Don't let perfect be the enemy of good"
Yes I think it should be branded an OHM project - but with space for donors
and supporters particularly if other organisations apart from NLS want to
I've also forked the project into the OpenHistoricalMap repo
https://github.com/OpenHistoricalMap/building-inspector as I think that's
the best place for it (not sure why I didn't do that at first, tbh)
On 1 June 2014 18:25, Rob Nickerson <rob.j.nickerson at gmail.com> wrote:
> Hi All,
> An update on progress deploying our own version of NYPL's historic map
> vectorizer/building inspector tool .
> 1. Chris Fleet from National Library of Scotland (NLS) has kindly
> provided a couple of GeoTiff example scans from their London 1890's maps
> 2. Using the NYPL map-vectorizer  I am able to get initial building
> outlines from these maps.
> 3. Tim Waters has managed to get a copy of the NYPL website up ready
> for loading NLS's maps/vectorized buildings. This is at . Meanwhile he
> has opened initial conversations with the British Library who also have a
> good collection of historic maps.
> 4. I am concerned that the initial building outlines end up leaving
> gaps between terraced buildings. This is due to the way that the NYPL
> map-vecotrizer works to trace the _inside_ of buildings. I'm no GIS expert
> so may be missing a simple solution. However I have noticed that we could
> use the Strava Slide tool  to 'slide' the building polygons onto the
> building walls. In essence this works by using pixel "blackness" of the map
> scan (rather than GPS traces as per the initial Strava Slide tool).
> 5. I have contacted Paul at Strava to ask about this. He thinks the
> idea is a really good one and is hoping to add the functionality we will
> require. He's a bit busy at the moment but is presenting at FOSS4G (in
> September?) and would like to use this as an example of what's possible
> with slide.
> So, where does this leave us? Well we're at the same place as NYPL so
> could go ahead with adapting the website Tim put up to our needs and then
> launch when ready. Or, we could hold off until Paul at Strava is able to
> add the functionality we need to the Slide tool.
> Also, are folks happy for this to be branded as an OpenHistoricalMap
> project? (Chris at NLS is okay with this).
>  http://buildinginspector.nypl.org/
>  http://maps.nls.uk/os/london-1890s/index.html
>  https://github.com/NYPL/map-vectorizer
>  http://leatherwood.herokuapp.com/
>  http://labs.strava.com/slide/
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