See Geographic mapping the Tcl way for more details. RS: I proposed rules there that I myself didn't sctrictly follow ;-) more so in Mapping Colorado than in this midnight project, that was driven by the fact that I finally had coastline data.
Get TkWorld (a zoomable, scrollable world map on a canvas, based on data from http://dss.ucar.edu/datasets/ds780.0/ ) as TclKit (39kb) from http://www.digital-smarties.com/pub/tkworld.bin , or mailto:[email protected] for the 111KB source (single file with all data)
Vince How does one zoom? There are no controls and all the keypresses and clicks I've tried (WinTk 8.4a4) don't do anything.
RS Plus and minus keys on the keyboard (sorry, it was late ;-)