At the LGM 2009 BOF, I remember Oyvind discussing his vision of something kind of like this. Since GEGL structures its operations in tree form, what you may want to think about is that you want to display a tree in a form understandable by a user. My personal take is that there probably is a topological sort algorithm which "effortlessly" leads to an easy to understand description of the tree in list form. (This list could then be broken up in "sublists." No doubt, Oyvind and others (including you) have better ideas. Good luck, Nicolas Robidoux _______________________________________________ Gimp-developer mailing list Gimp-developer@xxxxxxxxxxxxxxxxxxxxxx https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-developer