[FW] [fly] is a method of generating images "on the fly" using [GD], and allows for command line access (via, say, Tcl's [exec]) so it can be used by just about any language with shell access and I/O.  This is, as far as I know, the only way of using GD from Tcl.
  

http://martin.gleeson.com/fly/installation.html

[FW]'s knowledge is incomplete; at least there used to be a GDTcl package at:

http://www-personal.umich.edu/~spencer/guraldi/gdtcl.html
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[Category Package] | [Category Graphics]
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