On Saturday, 11 June 2011, at 19:39:52 +0200,
Albrecht Dreß wrote:
> Am 08.06.11 00:00 schrieb(en) Jose Luis Domingo Lopez:
> >I then configured a quick and dirty XML definition file for GDAL/QLGT, see
> >below, and seems to work ok, but the WMS servers are SOOO slow, that it
> >makes for a painful experience (lower than 20 KB/s download speed):
> [snip]
>
> Wow, thanks a lot, it works and is *really* cool!
>
> >Most of the information in the XML above ("File -> Load Map" from QLGT) is
> >shown in the XML file the WMS server sends when asked for the
> >"getCapabilities - Anfrage" URL in the server list quoted above. SizeX and
> >SizeY is a trial and error game, as you should set them to the dimensions,
> >in pixels, of the whole area covered by the (in this case) aerial imaginery.
>
> Your explanation is really great - maybe you can add it to the Wiki? This
> feature is so nice that I guess many people want to make use of it...
>
Hi Albrecht, in fact, writing some instructions on how to configure the XML
files for GDAL, so to make QLGT able to load online maps on demand is on mi
TODO list, but the list is long, and growing :-)So far I have been spreading the word on QLGT in Spanish forums (see for example the next URL, if the server is not down, as it is sometimes): http://www.foromtb.com/showthread.php?741846-QLandkarteGT-Hilo-para-centralizar-dudas-experiencias-y-comentarios Creating the XML files is easy as you have already seen, but can take some knowledge about the syntax of the WMS protocol, and some trial and error (to estimate good values for SizeX and SizeY, as too low values would give bad resolution at the highest QLGT zoom (x1), but too high ones will exercise the remote map server more than necessary, requesting tiles for resolutions that are not available, and creating unnecessary load on the remote servers, that should be treated with care. I also have some XML files for accessing Google Maps layers (street layer, satellite imaginery layer, street overlay and terrain layer), and when I have time to debug them a bit I'll send them all to Oliver for inclusion in the download section of the webpage (there are some files already). And will write a short tutorial on how to create these files, that hopefully can be included with the program sources, or even as a help window from the program itself. Greetings, -- Jose Luis Domingo Lopez Linux Registered User #189436 Linux Kubuntu 11.04 (Linux 2.6.38-8-generic-pae)
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