Hi all
I have read your messages about the problem of overlayingareas hiding the
contiguous map when several img maps are loadead at the same time.
I have downloaded freizeitkarte-osm IMG files of Spain, Portugal, and
Pirineos, and after being playing a bit, here is a way to avoid the
overlaying problem at the country borders when all of them are displayed at
the same time. A bit of "cooking" is necessary, but once the process is
known it can be done very fast.
1-Extract the typ file from the IMG file with GmapTool
2-Edit the TYP file (e.g. with TYPViewer.exe) and set to transparent the
Background (4b) and the Land (3a) Polygons.
3-Replace the original TYP with the new TYP in the IMG file with Gmaptool.
notice that:
-the overlaying areas in these maps are Background and Land, but in other
maps could be different
-You will want to save the edited .TYP with a different name. The name must
be 8 characters plus '.TYP'
At this point, if you load the maps, the problem seems to be solved, and it
will be done in most cases, but not completely, because in some cases
(e.g.with the pirineos map that cover a large area of France and Spain) not
only the background and Land polygons are overlaying, other areas like
woods will be overlaying too, so they will be hiding text and lines of the
contiguous map in a large area.
We can solve this replicating the maps and loading two versions, one will
be used as base layer for displaying the areas and another one for
displaying lines and text above all the others. To do so:
4-In your map folder, and for each map you want to replicate, create a link
to the IMG file. (e.g. create a link pointing to pirineos.IMG and rename it
as to-pirineos.IMG). In this way it will be a different map for QMS but the
data (and the Mb) will not be duplicated in your disk.
5-In QMS click on 'Setup Map Paths' and then Ok to refresh the map list to
see the new ones.
6-In the map window change the order of the maps placing first all the maps
that will be used to show the areas with the 'area' checkbox activated
only, and above them (this is below in the map list) place the replicated
ones with the 'lines' and 'points' checkboxes activated only.
This will make QMS drawing first the areas of all the maps, and then the
lines and points of all the replicated maps.
In the case of two contiguous maps (eg: Germany Austria) steps 1 to 3 must
be done on both IMG, and steps 4 to 6 will be necessary only for one of
them. So you can place the maps like this:
Germany (areas)
Austria (areas, lines, points)
to-Germany (lines, points)
------
Some links
For extracting and replacing typ files with gamptool:
http://www.gmaptool.eu/en/content/gmaptool
another howto for replacing the typ (spanish):
http://www.elgps.com/foroGPS/viewtopic.php?f=11&t=9491
For editing the TYP:
Typviewer (for windows, and I have not been able to run it with wine):
https://sites.google.com/site/sherco40/
-------------------------
All this brings me a thought(may be could be considered for for future
versions):
Now QMS draws all the elements (areas, lines, points) of an IMG map, and
goes on with the next one.
Perhaps drawing first the areas of all the maps, and then going on with the
lines and points will solve the overlaying issue.
To be more precise , it will be necessary to draw first the Background (4b)
and the Land (3a) areas, then the other areas, and finally the lines and
the points. But this is not sure, 'Background' is usually assigned to (4b)
in all maps, but what will be in (3b) is not so clear. Finally, all depends
on how the maps are structured, and each "cooker" has a different recipe.
Hope it helps
Mitxel
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