[Talk-GB] Environment agency LIDAR tiles

[Tom Crocker]

Thanks all.

Well, I've never used QGIS before and I have to say I'm a bit lost. I've
managed to get the WMS tile layer that Rob mentioned into QGIS, which looks
great, but no idea how to get that into JOSM. Should I be able to set up
some kind of QGIS server as an intermediary? Is there a reason I can't
access the tiles directly in JOSM (apart from my lack of knowledge)?

On Wed, 3 Mar 2021 at 14:13, Ed Loach <edloach at gmail.com> wrote:

> The old data for the Tendring area that I processed at the time is still
> available.
>
>
>
> Visible here
>
> http://www.loach.me.uk/lidar/
>
>
>
> With (old) notes here:
>
> https://wiki.openstreetmap.org/wiki/User:EdLoach/Tendring_LIDAR
>
>
>
> Ed
>
>
>
> *From:* SK53
> *Sent:* 03 March 2021 13:24
> *To:* Tom Crocker <tomcrockermail at gmail.com>
> *Cc:* talk-gb at openstreetmap.org
> *Subject:* Re: [Talk-GB] Environment agency LIDAR tiles
>
>
>
> Hi Tom,
>
>
>
> I'm not aware of a tiled dataset directly usable within OSM editors. The
> tiled data I am aware of are:
>
>
>
> * As background layers on the NLS maps site
>
> * On houseprices.io (AFAIK the original EA releases)
>
>
>
> The newer Lidar data (post 2018) has much more extensive coverage at 1 m
> resolution, but I'm not sure how much of the country has been covered yet.
>
>
>
> When I've wanted to use this Lidar data, I've just downloaded tiles (the
> old data is in 1km square tiles, the new data in 5 km square tiles) and
> processed them in QGIS to generate a hillshaded DSM & a hillshaded DSM-DTM
> delta layer, which can be georeferenced & used in JOSM (via the imagery
> import plugin). Hillshades are often the most useful for interpretation.
> Other things might be to pull buildings from OSM into QGIS & extract
> maximum heights (from a DSM-DTM delta) for the buildings. I've also
> extracted contours at 1 m intervals & used something like the 3m contour to
> estimate building centroids to compare offset of OSM buildings (doesn't
> work for all if trees are nearby).
>
>
>
> Jerry
>
>
>
> On Wed, 3 Mar 2021 at 12:50, Tom Crocker <tomcrockermail at gmail.com> wrote:
>
> Sorry if this has been discussed before, I've just joined. I have seen
> some threads from 2015 discussing the Environment Agency LIDAR data, which
> seems to confirm my understanding that it would be fine to use the data in
> OSM. Are there any tile servers available for this, or some method of
> adding overlays to JOSM for example? I think it would be really useful in
> wooded areas.
>
>
>
> Thanks
>
>
>
> Tom
>
>
>
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>
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