Useful IDL tips, procedures and self-made functions

The idea is to make available for everyone some of our self-made routines (or rare routines you've discovered somewhere in the depths of the Internet) and IDL tips.

Of course: http://www.idlcoyote.com/ and http://www.idlcoyote.com/documents/programs.php.

-- SimonBorgniet - 27 Feb 2015