This paper describes a system which converts a twodimensional sketch with hidden lines removed of a single polyhedral object into a boundary representation solid model.The system improves on a previous system by Grimstead by analysing the sketch for symmetry elements and regularities. It uses the results of this analysis to produce a more plausible topological completion of the hidden parts of the object, and to enforce exact constraints on the geometry of the boundary-representation model.

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Residing with the exponential growth of gastronomy tourism research, a number of review articles have examined the relationship of gastronomy and tourism from distinct thematic and disciplinary perspectives. What remains absent is a comprehensive overview that encapsulates the interdisciplinary dimensions of this area of research. In response, this study comprehensively investigates gastronomy tourism literature utilizing a network and content analysis, with an aim to map the main subject areas concerned with gastronomy tourism and relations between varying subject areas. In doing so, themes determining gastronomy tourism and focus for future exploration are identified. The review findings suggest that the trajectory of gastronomy tourism research is characterized by the dominance of "tourism, leisure, and hospitality management" and "geography, planning, and development." Three recommendations are proposed to assist development of gastronomy tourism research: increased dialogue across subject areas, development of critical and theoretical approaches, and greater engagement with sustainability debates.

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