Support for Swedish Lantmäteriet's "Min Karta" - WMS

Thanks for your response!

I actually use the standard topo map of Lantmäteriet a lot since it first was introduced in Locus. But this would be a very nice addition.

The map is for public use AFAIK, with no login, but must say I have not reviewed the license text.

You can use it by just going to https://minkarta.lantmateriet.se/ .

edit: Ah, you mean the WMS service specifically of course. I can't say for certain, I have never met a WMS service that requires login, though I'm sure there are many, but I would expect Locus to throw some kind of informative error in such a case.

Does not function by Gpx Viewer either.

By the way: the lantmateriet.se wms (free) services do expect (free!) login by a token in the wms link.

Receive your personal token by registering.

https://www.lantmateriet.se/sv/Kartor-och-geografisk-information/oppna-data/

Thanks 0709 for your sleuthing!

I just want to add that the page with information about the use of Lantmäteriet's map data is available in English also: https://www.lantmateriet.se/en/maps-and-geographic-information/open-geodata/

A bit strange though is that when I continue into the details about their OpenData services I can't find any information about the WMS based "Min Karta" map. Only about the WMTS service: https://opendata.lantmateriet.se/#apis?api=OpenDataWMTS&version=v1

This FAQ might be useful and has a lot WMS-implementation-specific information: https://www.lantmateriet.se/en/maps-and-geographic-information/geodataprodukter/fragor-och-svar/visningstjanster2/

I messed around a bit with the OpenData services. Using the token provided there you can get access to four main services at api.lantmateriet.se:

1. "Stompunkt" - WMS server of measurement points information. Works with Locus.

2. "Tyngdkraft" - WMS server of gravity information. Works with Locus.

3. "Historiska kartfoton" - WMS server with two very interesting layers of historical aerial photos (1960 and 1975), nice find that I wasn't expecting! Works fine with Locus.

4. WMTS(!) server of topographical web map tiles, which Locus still does not really support AFAIK.

So none of this does really seem related to the WMS topographical map at minkarta.lantmateriet.se, which makes me think the registered-user-token at OpenData might be a red herring for the original question.

Hi,

the initial issue is really caused due to missing login information. Please login and provide the token in the request URL. WMTS Topoweb layer is already supported in Locus and you can add it into the list of online maps as I described in my previous post.

Thanks, Petr

Here are also examples of two types of tile urls from Min Karta that works fine without any user-identifying information in headers/cookies:

Topographical map:

https://minkarta.lantmateriet.se/map/topowebb/?SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&FORMAT=image%2Fpng&TRANSPARENT=false&LAYERS=topowebbkartan&TILED=true&STYLES=&WIDTH=256&HEIGHT=256&SRS=EPSG%3A3006&BBOX=317824%2C6396832%2C317952%2C6396960

Property borders:

https://minkarta.lantmateriet.se/map/fastighetsindelning/?SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&FORMAT=image%2Fpng&TRANSPARENT=true&LAYERS=granser%2Ctext&TILED=true&STYLES=registerkarta%2Cregisterkarta&WIDTH=712&HEIGHT=712&SRS=EPSG%3A3006&BBOX=318030%2C6396910%2C318386%2C6397266

Unfortunately the WMTS topoweb layer that I get through the officially supported way in Locus does not give anything close to the quality of Lantmäteriet's Min Karta information. That is the main reason why I am trying to add the WMS service. A secondary reason would be that it also supports the property borders layer.

Since the tile examples above seem to work without any login, and since Locus does not give the "unauthorized" response I get for similar services when trying without proper credentials I don't really see why it should be a login problem, but maybe it is anyway?

I've tried using my Lantmäteriet API credentials for login/password, it does not help, I've tried adding token=<my token> parameter to the URL and it does not help either, but maybe I'm doing it wrong.

Dear Kristoffer,

could I ask you for help? Would you please contact the administrators of this WMS service and ask them for more info, please?

The request below works fine:

https://minkarta.lantmateriet.se/map/topowebb/?SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&FORMAT=image%2Fpng&TRANSPARENT=false&LAYERS=topowebbkartan&TILED=true&STYLES=&WIDTH=256&HEIGHT=256&SRS=EPSG%3A3006&BBOX=317824%2C6396832%2C317952%2C6396960

But the same layer and area requires login

http://maps.lantmateriet.se/topowebb/wms/v1?SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&FORMAT=image%2Fpng&TRANSPARENT=false&LAYERS=topowebbkartan&TILED=true&STYLES=&WIDTH=256&HEIGHT=256&SRS=EPSG%3A3006&BBOX=317824%2C6396832%2C317952%2C6396960

So the problem is in server that process the request. Unfortunatelly the "GetCapabilities" request on https://minkarta.lantmateriet.se/map/topowebb/ defines that client should use the URL http://maps.lantmateriet.se/topowebb/wms/v1. But the 'http://maps.lantmateriet.se' requires the login.

Please ask them why login is required on 'http://maps.lantmateriet.se'

Thank you

Petr

Thanks for your analysis Petr, I'll try to get an answer!

Answer: That service is not for free access with other clients. Use other services at https://www.lantmateriet.se/en/maps-and-geographic-information/open-geodata/ . Case closed for "Min Karta". Though I also asked if they might have any open WMS access to the topographical map, since I only can find WMTS access to it on the linked page.

Thank you for your help with this topic and explanation of this issue.

Thanks, Petr

A question regarding the same map (Lantmateriet Topo). Why is the download limit set to 1000. This is a free map. Sees that the limit is higher or even unlimited for other maps. A higher limit would be desirable.

The limit is set due to Lantmateriet restrictions. Locus app (all users together) is limited to 6000 requests per minute. To avoid high traffic is the daily limit set to 1000 tiles.

Thanks for understadning

Petr

6000 request per minute is about 8,5 miljon request per dag. I think it is a litle to limited. I think it could be set to at least 10000 per day?

well during downloading can user download about 200 - 300 tiles per minute. So only 20 simultaneous downloads can drain the limit. Please consider the maximal zoom-level you need to download and we can also think about increasing the limit to 2000 per day

Sounds great.