On To The Next Step you've got your screen capture so this is my multi-direction Hill shade map of
this particular area but at this point this is just a image what you need to do is enter the
coordinates for this image you got to put a north and a South and an East and a West coordinate
into this image file so that your mapping program knows where this image goes to do that I use this
program called map C to map C there's a link on the Osman web page you go to how to make maps and
this is the most basic way to make a map or Osman also works with many many other programs there's
a lot of different options yeah put a link to this video in the video description Bart Eisenberg did
a really good video explaining how to use this map C to map C program to do very sophisticated
map calibration or geo-referencing so anyway let's jump into the really simple use of this program
you start up the program you can download this from the link on the Osman page you can use the
free version or I found this useful enough that I did the paid for version and I think it was well
worth it this is a really powerful tool to use it you just come over here to file and you want
to load an image for calibration and do to this north south east west select the image you want to
calibrate so I was using this one then over here for small images or Maps this one works okay the
latitude longitude and then you want to do wgs 84 which is the datum that USGS uses this has
to match what your base map is so you do that next and then up here this is where your coordinates go
in that's why you need to have this in a text file so this was CT slide this was my North copy here's
your north latitude so this is the Northwest so this is why you need to separate the coordinates
out so you want to paste that in and then you come over here to the west and grab that decimal degree
and then you paste in the decimal degrees for your west longitude if you like degrees minutes
and then seconds over here but this is easier and then you've got to do the south east corner so you
got to get yourself paste and then you want to get this one you need the East you have to pay
attention here it'll say Southeast corner but over here it's it says West and north but that's just
north latitude and west longitude so you get your coordinate there and you say okay in this case I
already had a file there and you want to overwrite anything don't merge or overwrite is what you want
to do and so there it gives you the calibration points and the meters per pixel so I guess on that
map it's roughly a half meter per pixel or maybe 20 inches so now you've calibrated the map and
the next thing you need to do is write map for mobile device and you can see there's a ton of
formats here for Osman you want to use this Locus and all these other ones but it's the sqlite dot
DB format so you got to select that then unselect this you don't want the tile selectable but you
want to make the tile margins transparent and then you say okay and right here it says oh that file
already exists you want to merge with it and you want to say no don't merge you want to overwrite
it I ran into that problem I had an old file that was wrong and then I merged in the new file and it
was still wrong so you have to overwrite it and then at that point over here you've now got c t
slide 2 dot sqlite DB so that's the file you want to move over to your mobile device because that's
the map format that Osman understands you've got the PNG file that's your screen capture
and then you've got this map file that's what map C to map C uses so anyway that's the end
of step three and then I'll show you how to get the map over to your mobile device in step four