Hi Vic,
No problem, you’re quite welcome.
However, while the OS have their faults with regards to overzealous
licensing requirements, generally they don’t seem to care if it actually is
every tile. Certainly the site we created we made them aware of (they even used
it as a case study!) and we used the method as below and it probably doesn’t
cover every tile.
Oh yes, be sure to set a max scale so it only appears on OS MasterMap and not
all of the other products in your zoom stack.
You can see it in action here (zoom to 1:5000 or closer):
http://maps.warwickshire.gov.uk/
Cheers,
Jonathan
From: Kirk, Victor [mailto:[email protected]]
Sent: Tuesday, August 11, 2015 4:16 PM
To: '[email protected]'
Subject: Re: [Geoserver-users] Watermarking
Sorry, I completely forgot to thank you for the reply, it came in just as I was
leaving for a few days and I’ve only just got back to looking at this issue.
I’ve tried what you suggested but my interpretation of the licensing requires
each tile requires a watermark. The images rendered with this method only
contain part of the watermark, or sometime none if the tile size is small
enough.
I did look at using a layout (thinking I could add the layout parameter at the
proxy server) but I could not see anyway of dynamically setting the size of the
logo so it filled 10% of the tile.
Are there other tricks I could use? To summarise the my goal, render a graphic
that fills a percentage of the requested tile at a particular zoom level.
From: Jonathan Moules [mailto:[email protected]]
Sent: 18 June 2015 17:03
To: Kirk, Victor; '[email protected]'
Subject: RE: Watermarking
Hi Vic,
I know this has come up before, but a quick search isn’t finding it.
Watermarking is fairly easy. The way I did it if memory serves;
- Create a shapefile covering the entirety of the UK.
- Style the shapefile with the watermark so that only the watermark is
visible and somewhat transparent (20%?).
- Use the watermark as the “top” layer in a layergroup with any of your
OS datasets.
It works quite well and gets included in all outputs, WMTS, WMS, cached or
otherwise.
You can see it in action here when you zoom in to 1:5k or closer.
Cheers,
Jonathan
From: Kirk, Victor [mailto:[email protected]]
Sent: Friday, June 12, 2015 11:02 AM
To: '[email protected]'
Subject: [Geoserver-users] Watermarking
Hi,
I’m currently working with a dataset whose licensing requires a watermark. The
watermark is to cover 10% of the rendered image. This data only required when
zoomed right in. I couldn’t find a way of doing this in Geoserver so I’ve made
a modification to the watermarking to accept a zoom level and a ratio of the
tile to resize the watermark logo to.
The dataset in question is Ordinance Survey’s Master Map, so I’m sure other
people must face similar watermark restrictions.
Is there a way of doing the above with Geoserver and if not, is there a better
way of implementing my changes as a plugin rather than the core? Lastly, if
the answer to both of these is no, would such a change be of enough interest to
warrant pursuing incorporation into Geoserver’s code base.
Kind Regards,
Vic
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Victor Kirk
Lead Developer
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