Poole C M, Cornelius I, Trapp J V, Langton C M
Cancer Care Services, Royal Brisbane and Womens Hospital, Herston, QLD, 4029, Australia.
Australas Phys Eng Sci Med. 2012 Sep;35(3):329-34. doi: 10.1007/s13246-012-0159-8. Epub 2012 Sep 6.
Often CAD models already exist for parts of a geometry being simulated using GEANT4. Direct import of these CAD models into GEANT4 however, may not be possible and complex components may be difficult to define via other means. Solutions that allow for users to work around the limited support in the GEANT4 toolkit for loading predefined CAD geometries have been presented by others, however these solutions require intermediate file format conversion using commercial software. Here within we describe a technique that allows for CAD models to be directly loaded as geometry without the need for commercial software and intermediate file format conversion. Robustness of the interface was tested using a set of CAD models of various complexity; for the models used in testing, no import errors were reported and all geometry was found to be navigable by GEANT4.
通常，对于使用GEANT4模拟的几何结构的某些部分，CAD模型已经存在。然而，将这些CAD模型直接导入GEANT4可能不可行，并且复杂组件可能难以通过其他方式定义。其他人已经提出了一些解决方案，允许用户绕过GEANT4工具包中加载预定义CAD几何结构的有限支持，但这些解决方案需要使用商业软件进行中间文件格式转换。在此，我们描述一种技术，该技术允许直接将CAD模型作为几何结构加载，而无需商业软件和中间文件格式转换。使用一组各种复杂度的CAD模型测试了接口的稳健性；对于测试中使用的模型，未报告导入错误，并且发现所有几何结构都可由GEANT4导航。
