| 摘要 |
<p>A method and system for data exchange between computer aided design systems is disclosed. Data is extracted from a source computer aided design system and created in a new format for a target computer aided design system by an intermediary system. The intermediary system makes a direct transfer of source CAD data to target CAD data. In an alternative embodiment, an intermediate data type is created. The intermediate data type is configured to be later transferred into virtually any target CAD data type. In one embodiment, a data base keeps track of changes between features stored in the intermediate data type so that revisions to source CAD data can be easily tracked, and it is possible for a CAD user to easily back-out or review the evolution of a particular object or feature. According to an aspect of the invention, the intermediary system performs an iterative process to extract CAD data from the source system and create CAD data for the target system. Steps of the CAD data exchanged method include attempting any combination of an application programmers interface technique, a pattern recognition technique, a user emulation technique, or a boundary representation technique to extract and/or create the CAD data.</p> |
