Research in Geometric Modelling

本研究属于几何建模领域。它被组织成三类项目。其中最大的是一项以超大规模集成电路（VLSI）光线投射引擎为中心的合作，该引擎将显著提高实体建模系统的性能。由美国国家科学基金会资助的杜克大学团队将提供这种特殊用途计算机的实验原型；康奈尔大学将为生产自动化应用创建和操作适当的试验台，并将研究一系列与计算机集成到系统以及新应用和技术扩展有关的问题。第二类理论和算法项目将重点研究活动区域算法、空间扫描域扩展和其他几何建模问题。第三类项目是探索性的，包括对机械设计的复杂性管理和建模支持。首席研究员是一位有能力的研究人员，在实体建模方面做了开创性的工作。该项目的资金将使杜克大学由专家用户设计的光线铸造机的测试成为可能，并为实体建模的新研究提供环境。大约一半的项目涉及测试和评估射线铸造机的性能，由微电子信息处理系统（MIPS）的实验系统项目资助，另一半项目涉及实体建模的新工作，由设计、制造和计算机集成工程（DMCE）的部门资助。

This research is in the area of geometrical modelling. It is organized into three categories of projects. The largest is a collaborative effort centered on a VLSI raycasting engine that should improve dramatically the performance of solid modelling systems. An NSF-funded team at Duke University will supply experimental prototypes of the special purpose computer; Cornell will create and operate appropriate test beds for production automation applications and will study a range of issues bearing on the integration of the computer into systems and on new applications and extensions of the technology. A second category of theory-and-algorithm projects will emphasize research on active-zone algorithms, spatial sweeping domain extensions and other geometric modelling problems. The third category of projects is exploratory in character and includes the management of complexity and modelling support for mechanical design. The principal investigator is a capable researcher and has done pioneering work in solid modelling. The funding of this project will make possible the testing of the raycasting machine designed at Duke University by an expert user, as well as providing the environment for new research in solid modelling. Approximately half of the project relates to the testing and evaluating the performance of the ray- casting machine and is funded by the Experimental Systems Program, Division of Microelectronic Information Processing Systems (MIPS), and the other half of the project relates to new work in solid modelling and is funded by the Division of Design, Manufacturing, and Computer- Integrated Engineering (DMCE).