Shape grammars are types of non-linear formal grammars that have been used in a range of design domains such as architecture, industrial product design and PCB design. Graph grammars contain production rules with similar generational properties, but operating on graphs. This paper introduces CAD grammars, which combine qualities from shape and graph grammars, and presents new extensions to the theories that enhance their application in design and manufacturing. Details about the integration of CAD grammars into automated spatial design systems and standard CAD software are described. The benefits of this approach with regards to traditional shape grammar systems are explored.
KeywordsEditing Line Source
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