文章基本信息

标题：Parallel Graph Grammars with Instantiation Rules Allow Efficient Structural Factorization of Virtual Vegetation
本地全文：下载
作者：Katarína Smoleňová ; Winfried Kurth ; Paul-Henry Cournède 等
期刊名称：Electronic Communications of the EASST
电子版ISSN：1863-2122
出版年度：2013
卷号：61
语种：English
出版社：European Association of Software Science and Technology (EASST)
摘要：Parallel rewriting of typed attributed graphs, based on the single-pushout approach extended by connection transformations, serves as the backbone of the multi-paradigm language XL, which is widely used in functional-structural plant modelling. XL allows to define instantiation rules, which enable an instancing of graphs at runtime for frequently occurring substructures, e.g., in 3-d models of botanical trees. This helps to save computer memory during complex simulations of vegetation structure. Instantiation rules can be called recursively and with references to graph nodes, thus providing a unifying formal framework for various concepts from the literature: object instancing, structural factorization, Xfrog multiplier nodes, L-systems with interpretation. We give simple examples and measure the computation time for an idealized growing virtual plant, taken from the GreenLab model, in its implementation with instantiation rules in XL, compared to a version without instantiation rules.