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#88 Local QCT maps
open
nobody
None
5
2014-08-22
2011-04-16
Anonymous
No
Firstly I have to say that I'm loving Viking. It's doing everything I need it to do. Brilliant.
My question is this. How could I get Viking to use my (memorymap) QCT map files as a map layer?
Would this mean a huge amount of coding for Viking to utilise local maps rather than hosted maps? And even more coding to read the qct files?
I would value your opinions on this.
Again many thanks
Mark
Can you give us more details, URL? With keywords memory-map and qct I found:
http://www.memory-map.co.uk/fr/presentation.html
What is the format of map files? I fear they are protected.
Memory map uses Ordinance Survey maps for its mapping data. The maps come with the software and are available to buy with the main application. They are useful as they are in the standard OS format and come in varying levels of scale. I would really like to be able to use these files in Viking as they give an extra level of detail that the openmaps just don't have yet.
LICENCE ISSUES - There doesn't seem to be anything in the licence agreement about using the map (qct) files for another purpose aside from the usual copying and numbers of uses (T&Cs for memory map and OS data here http://www.memory-map.co.uk/terms_and_conditions.htm#1\)
QCT File format - There is an application for extracting PNGs from the QCT files here http://www.sat.dundee.ac.uk/~arb/qct
I don't know the mechanics of it all yet but there seems to be two options.
a) getting Viking to read the qct files nativly using the code available from the qct2png project
b) Somehow extracting the png tiles from the qct files and getting Viking to see these local (converted png) files by using a local url rather than a internet hosted server.
your thoughts on this matter would be most welcome.
Again I don't have a problem with Viking and it is doing a sterling job of keeping my gpx files in order (although I have to convert back and forth from Garmins .tcx file format) As I already have the qct files it seems a shame that I can't use them in Viking to make it even better for me.
Keep up the good work
Mark
As I do not know QCT format (single files or multiple files, tile oriented, what projection...) it is hard to imagine the simplest solution.
Offering a local map source is in the todo list, but not done yet.
Probably, the most simple solution nowadays would be to hack around the software you pointed at, in order to create a local WMS server (see http://code.google.com/p/twms/ at least). Then, point viking to this local WMS and that's it :-)