1-2-tree: Semantic Modeling and Editing of Trees

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@INPROCEEDINGS{ganster-2008-1-2-tree,
      author = {Ganster, Bj{\"o}rn and Klein, Reinhard},
      editor = {Deussen, O. and Keim, D. and Saupe, D.},
       pages = {51--60},
       title = {1-2-tree: Semantic Modeling and Editing of Trees},
   booktitle = {Vision, Modeling, and Visualization 2008 (VMV 2008)},
        year = {2008},
       month = oct,
   publisher = {Akademische Verlagsgesellschaft Aka GmbH, Heidelberg},
    abstract = {In computer graphics, procedural methods and L-systems are common 
                approaches to model complex botanical trees. In contrast to previous 
                tree modeling systems, we propose linking rules, parameters
                and geometry to semantic entities. This has the avantage that when an 
                entity is clicked in the viewport, its parameters can be displayed 
                immediately, and viewport editing operations can be reflected in
                the parameter set. Furthermore, we store the entities in a hierarchical 
                data structure and allow the user to activate recursive traversal via 
                selection options for all editing operations. Therefore, viewport or 
                parameter changes can be applied to a single entity or many entities at 
                once, and only the geometry for the affected entities needs to be 
                updated. The proposed user interface aims at simplifying the modeling 
                process.},
        isbn = {978-3-89838-609-8},
  conference = {The 8th International Fall Workshop Vision, Modeling and Visualisation 2008}
}