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Creating a map theme from a regional, not global, image?

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Hello,

I'm hoping someone can point me in the right direction.  I've decided to try to undertake the task of stitching all the tactical pilotage charts for the island of New Guinea together, and making them a map theme for LNM.  An example chart can be seen here:

https://maps.lib.utexas.edu/maps/tpc/txu-pclmaps-oclc-22834566_n-15a.jpg

(The others are scattered through this page, with other areas of the world available as well:)
https://maps.lib.utexas.edu/maps/tpc/

Now, I've worked with georeferenced images before, I know my way around photoshop, and I've done some simple coding/xml/web scripting.  I understand this may be a tedious process, but I hope I have the basic skills needed (and a lot of time to kill in hotels).

But I need a nudge in the right direction.  I'm having trouble understanding how you would geo-reference such a map, that is regional and not global in nature?  I see no coordinates in the .dgml, and the tutorials linked in the LNM docs all seem to reference global maps, where it appears you just align your global map with an example image.

I'm glad to put in the study time to figure out how to do this... but I need to know what to study :D.

If anyone has any hints, I'd be interested to hear them...

Thanks!

 

Andrew Crowley

Here are some hints and links in the manual: https://www.littlenavmap.org/manuals/littlenavmap/release/2.6/en/MAPTHEMES.html

You certainly don't want to create a slippy map configuration which needs a map server.
You can try the linked tutorial for Marble using historical maps: https://techbase.kde.org/Marble/HistoricalMaps
These also use single images for background but covering the whole world. No idea how this can be done for smaller maps.

Alex

 

  • Author
9 hours ago, albar965 said:

These also use single images for background but covering the whole world. No idea how this can be done for smaller maps.

Yup that's the problem I'm running into. I thought I'd ask at the Marble/KDE forums but they seem pretty inactive.  There must be somewhere the electronic map fans hang out online, I'll keep looking...

Andrew Crowley

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