craporola

As far as I can tell, one of the rules that the OS impose with their digital mapping is that it is distributed in a non-public format. I don't know the details of Anquet but you may find a hacking tool to extract the maps. There is, for example, a tool call OziMapTrans that will, among other things,...

There's now a new version of the Calibration conversion program with additional function : Full-screen calibration of maps; cropping and rescaling maps whilst retaining the Calibration and writing tiles compatible with Trekbuddy and others. http://www.the-thorns.org.uk/mapping

I'm pleased it's working. GPSMAP only uses 2 points; the order doesn't matter. You can also check the calibration by loading the image and .mcd onto your portable device; loading the map in GPSMAP and clicking on it.

There are two flavours of the pocket-PC software - GPSMAPOS and GPSGO. They both use a .mcd calibration file but the formats are different. I decided that if the data was in the UK I would use the GPSMAPOS format and the other one outside. 'In the UK' was defined as latitude 50 to 60 and longitude 1...

Sorry about that; a new version 1.0.1 is available for download. Let me know if that fixes the problem. [For some reason, I was only coping with reading .mcd files for the UK which have a different format whereas you are out in the Atlantic, I believe. The .mcd file should have worked with GPSGO]

Version 1.0.0 of MAPC2MAPC is now available as above and includes the functionality to calibrate maps as well as convert existing calibrations.

I'm just putting the finishing touches to a version of MAPC2MAPC that will calibrate images (previous versions only converted existing calibrations); it will write .mcd (OS or GPSGO version depending on where the map is). If the .mcx layout has been finalised I can add that, too.

The example I sent you seems to use every point on the trail as Placemark without using linestrings. I guess there are different ways to achieve the same result but I do like to look at my track to see where I was and when to locate photographs and to plot graphs like distance over time.

I don't claim to fully understand kml but a placemark seems to allow a timestamp - see this example created by GPSU (also recommended!) <Placemark><visibility>0</visibility> <name>2009-06-09 16:14:35Z</name> <TimeStamp><when>2009-06-09T16:14:35Z</when>...

If you are adding altitude to the .trl file, is it possible to add a time and date to each point too - either GPS time or PocketPC time. And to the .kml file??

Thinking about it a bit more, a linear method should give close results as long as you realise that the map is rotated in comparison with the coordinate system. For example, the eastings of the top right will not be the same as the eastings of the bottom right of the map; the northings of the top ri...

*** Revised post *** By 'projection' I meant the (mathematical) way by which the curved earth is projected onto a flat map. Google Earth uses a Mercator projection whilst the OS uses a Transverse Mercator projection. (Wikipedia has better descriptions than I can write here). Mercator projections are...

Can you PM an example of an MCD for a big map and it's 'children' - I may be able to help. Also tell me the map projection.

.... or if you already have a calibration file (map, jpr, cal, tfw, gmi, gux) then mapc2mapc available at http://www.the-thorns.org.uk/mapping will create a .mcd for you (or the non-OS version if the map is not for the UK)

Another source of maps - not just the UK - is Open Street Map http://www.openstreetmap.org These are street maps, not footpaths or contours and are still being added to but definitely have their uses. There is a tool http://alpo.hassinen.googlepages.com/osm-map which downloads tiles and creates a .m...