'''Desciption:''' [tb] 2011-06-10

This little script shows a daily updated radiation map of Germany. I found this source of information quite serious.

'''Code:'''
======tcl
# Version 0.1
package require base64
package require http
package require Img

catch { console show }
# http::config -proxyhost <host> -proxyport 8080
set hConn [::http::geturl http://odlinfo.bfs.de/pics/germany.gif]
catch {set data [::http::data $hConn]}
catch {set imdata [::base64::encode $data]}
image create photo IMG -data $imdata
pack [label .l -image IMG] -fill both

wm title . "Strahlungsverteilung"
wm protocol . WM_DELETE_WINDOW {exit}

======

'''Reference Url:'''

http://odlinfo.bfs.de/

I had to wait a little on my low end Core2Duo on Ubuntu32 for the image to get created from the base64 encoded data, so be a little patient ;)

----
'''2011-06-28''' [tb] - The URL of the map has changed from ''http://odlinfo.bfs.de/bilder/germany_php.gif'' to ''http://odlinfo.bfs.de/pics/germany.gif''. '''Code changed!'''

----
'''2011-06-28''' [tb] - This version adds a procedure to scale the map on Linux using convert: It was needed because the original map is too big to display on my screen.

======tcl
# Version 0.2
package require base64
package require http
package require Img

catch { console show }
# http::config -proxyhost <host> -proxyport 8080
set hConn [::http::geturl http://odlinfo.bfs.de/pics/germany.gif]
catch {set data [::http::data $hConn]}
catch {set imdata [::base64::encode $data]}
image create photo IMG -data $imdata
proc scaleImage {percentage} {
  # Sorry, works only on Linux so far...
  set cnv [exec which convert]
  if {[string trim $cnv] != ""} {
    set infile /tmp/tsb.png
    set outfile /tmp/tsb_scaled.png
    IMG write -format PNG $infile
    catch {exec $cnv $infile -resample $percentage $outfile} err
    if {$err==""} {
      image delete IMG
      image create photo IMG -file $outfile
    }
    file delete $infile
    file delete $outfile
  }
}
scaleImage 50%
pack [label .l -image IMG] -fill both

wm title . "Strahlungsverteilung"
wm protocol . WM_DELETE_WINDOW {exit}

======

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