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revision 1.161 by benja, Sat Feb 15 21:48:46 2003 UTC revision 1.162 by benja, Sat Feb 15 22:03:00 2003 UTC
# Line 703  to create a structure for browsing, Line 703  to create a structure for browsing,
703  annotating and connecting  annotating and connecting
704  PDF files (for example, academic articles) obtained from other sources.  PDF files (for example, academic articles) obtained from other sources.
705    
706    Our application combines two hypermedia structures: Xanalogical links
707    between pieces of a PDF file [ted-xanalogical-structure-needed]_,
708    and placement of PDF fragments and textual annotations on
709    a 2-dimensional canvas [perlin93pad-andalso-bederson96padpp]_.
710    Overlapping pieces of PDF files can be placed on more than one canvas,
711    creating a visible *transclusion* [literary-machines-931]_.
712    
713  We take Cells a la Nelson's ZigZag[XXX ref] to be fundamental, point-like nodes  We take Cells a la Nelson's ZigZag[XXX ref] to be fundamental, point-like nodes
714  of the structure. A cell can have two types of relationships, as shown  of the structure. A cell can have two types of relationships, as shown
715  in Fig.[ref-xupdfStructure]: it is spatially placed onto a 2-dimensional  in Fig.[ref-xupdfStructure]: it is spatially placed onto a 2-dimensional

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