Thread Subject: Help overlapping a JPEG with a map.

I would like to read in a JPEG image of an island with IMREAD and then
overlay a plot of shoreline datapoints with HOLD ON. I would like to be
able to adjust the shoreline so that it overlaps the JPEG, expanding the x
and y scales and offsets as necessary (I am sure someone has done
something like this already, and can tell me the best way, probably using
the mouse).

Once I have the shoreline scaled to the JPEG I plan to digitize points
on the JPEG into an array with [x,y]=GINPUT.

Thanks for your suggestions in advance! Do you have some code that will
let me scale my plot of shoreline to the JPEG of an island on which it
overlies?

alberts