R help - Apr 2012 - creating a 3D and contour graph - to specify my previous question

I am sorry, may be my question was not completely clear - my aim is to
create the same plot as
http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=1
Is it possible for non-equidistant data? In the original input (attached)
the values have been measured along four transects and I would rather to
plot them in 3D and contour. In the attached file, column 1 and 2 contain
x,y (lon, lat).

Tomas Bayer
  ,           ,
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((__-^^-,-^^-__))
 `-_---' `---_-'
  `--|o` 'o|--'
     \  `  /
      ): :(
      :o_o:
       "-"
GNU's Not Unix!



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