Chinese lattice designs and parametric shape grammars
The Visual Computer: International Journal of Computer Graphics
The use of positional information in the modeling of plants
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
Procedural modeling of buildings
ACM SIGGRAPH 2006 Papers
Interactive visual editing of grammars for procedural architecture
ACM SIGGRAPH 2008 papers
General Shape Grammar Interpreter for Intelligent Designs Generations
CGIV '09 Proceedings of the 2009 Sixth International Conference on Computer Graphics, Imaging and Visualization
A Virtual World Grammar for automatic generation of virtual worlds
The Visual Computer: International Journal of Computer Graphics
Evaluating an eye tracking interface for a two-dimensional sketch editor
Computer-Aided Design
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Shape grammars play an important role in a new generation of tools for the analysis and design of products. Up until now there has been numerous attempts to create a general shape grammar interpreter, but most of the existing tools are either very specific in their purpose, have only limited functionality or were programmed for one operating system. In this work, we present a tool named Shape Grammar Interpreter (SGI) for the automatic generation of designs. The developed shape grammar framework allows designers to automatically synthetize designs and to actively participate in the generation process. Great effort has been devoted to provide an interactive way of defining shapes and later using them in shape grammar rules and designs' generation process. The tool implements two different types of algorithms for the generation of designs. First, Tree-search algorithms which store the state of the generation process in a tree structure and uses traditional tree-search algorithms to find the next rule to apply. Second, and most importantly, an optimized subshape detection algorithm. Hence, subshapes of the existing shapes can be detected and used in the generation process obtaining not only a wider set of designs but potentially more appealing ones. In this paper, we also describe the architecture of the framework and provide a performance evaluation of proposed algorithms, showing a significant gain in performance. Potential applications of our research can be found in the educational field (i.e. architecture and arts) and in the automatic generation of architectural, mechanical and product designs.