[Openstreetmap] Using cURL to grab Landsat images

[Nick Whitelegg]

Hello everyone,

Further to my questions on Landsat data earlier in the week, I've found it's 
actually very easy (well, much easier than I thought) to grab the data. You 
can make a request to the onearth server which will return a given square of 
variable resolution (defined by north, south, east, and west bounds, and 
pixel width and height) in JPEG format. 

Using the cURL library it's easy to incorporate this into your own programs. 
I've uploaded a couple of examples (in C) to

http://www.free-map.org/uk/downloads/

The files are lsg.c (a small demo application which grabs a JPEG and writes to 
standard output) and grab_landsat.c (a function which grabs the data and 
stores it in memory in a character array).

Nick