Thursday, October 19, 2006

Spain's topographic maps

From the beginning of Wikiloc there's been external map servers available for the region of Catalonia (North-East of Spain) thanks to the initiative of the Institut Cartografic de Catalunya to open their web map services and geodata to the public. Later on I added the Terraserver-USA Web Map Services (topo/imagery) for the United States.

Today I'm glad to announce that there's already coverage for the whole spanish territory thanks to the IDEE project of the Instituto Geografico Nacional. Their web map services have been around for quite a long time, it was my fault (lack of time!) not to made them available within Wikiloc until now.

I'm glad that the public sector in Spain is opening access to geodata to citizens, freely, interoperable, useful. Good.

I'll do my best to add all the web map services that many of you have been requesting! Stay tuned! :-)

As usual, if you want to activate additional base imagery and maps for the region you're viewing, you can do it by clicking on the "More Maps" drop down list:

4 comments:

Toni V. said...

Congratulations for adding wms layers from ICC.

There is a litle problem with reprojection. The different tiles have a deformation of 4 pixels. I supose that is due to reprojection, because ICC serves his cartography using European Datum 1950.

Anyway, this is a very good example of overlaying maps of Catalonia from ICC and Google maps.

Jordi Lopez Ramot said...

Thanks for your comment.

Yes, this is an issue that I still have to workaround. Someone told me that was an issue with ESRI ArcIMS WMS servers, but those layers you mention come from Lizardtech' products, perhaps is some issue at my end. Anyways it is already in my TODO list... :-)

Wladimir S said...

Hi Jordi,

With regard to the ESRI WMS than using the parameter reaspect = true or false now I do not remember which is, solve the problem of changing shape.

Regards,

Wladimir

Jordi Lopez Ramot said...

Thanks Wladimir! The guys at ICC's IDEC :) told me about that parameter, once added to requests to ESRI services it solved some of the cases perfectly.