I have quite a number of huge TIFF files, each TIFF file has a TFW file associated.
gdalinfo shows that the TIFF files are not real GeoTIFF (no embedded data). I know the TIFF's are in
WGS84, UTM format. I was able some time ago to load these files into CompeGPS, which created properly calibrated images in that software.
Now I need them converted to MBTILES to use with AlpineQuest on Android. I can create the mbtiles with this command:
gdal_translate test.tif test.mbtiles -of MBTILES
The problem is that the map is not correctly calibrated!
It should sit around 45N/7E, but if I open the MBTILES in QGis or in AlpineQuest I see it around 40N/1E.
I suspect the problem is with the source image, since also the TIFF+TFW will create a similarly misplaced image in QGis.
Now I am quite an amateur in GIS matters, so I am puzzled and really don't understand what I am doing wrong or what I should be actually doing?
Can somebody help me undestand what I am doing wrong?