Pointed pictures

Authors:
Paolo Bottoni;Anna Labella
Affiliations:
Department of Computer Science, University of Rome "La Sapienza" Via Salaria 113, 00198, Rome, Italy;Department of Computer Science, University of Rome "La Sapienza" Via Salaria 113, 00198, Rome, Italy
Venue:
Journal of Visual Languages and Computing
Year:
2007

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Abstract

We introduce the notion of entry and exit points for pictures and define a new operation on the resulting set of pointed pictures, which allows an algebraic description of them. This provides an alternative way for picture composition via a single operation, with respect to the classical use of pairs of operations. This can be used to impose a reading order in a picture resulting from the juxtaposition of several partial ones.