This work describes a generative method for the exploration of product shapes in the conceptual design stage. The method is based on three concepts: the notion of grammars to capture product appearance, the implementation of sketching transformation rules to produce design variations and the use of a parametric modeller to build shapes. We represent product solutions as 3D sketches using combinations of basic shapes arranged in simple and schematic product structures. This procedure allows creating many varied configurations with a minimal number of shapes, and facilitates the adaptation of the generative model to different products. The performance of the method is demonstrated through several examples from the literature.

这项工作描述了在概念设计阶段探索产品形状的一种生成方法。该方法基于三个概念：捕获产品外观的语法概念，实施草图变换规则以产生设计变化以及使用参数化建模器来构建形状的概念。我们使用简单和示意性产品结构中排列的基本形状组合将产品解决方案表示为3D草图。此过程允许创建具有最少数量形状的许多不同配置，并有助于生成模型适应不同产品。通过文献中的几个实例证明了该方法的性能。