AutoCAD 扩展实体数据接口方法及实现

Methods and implementation of access to AutoCAD extended entity data

介绍一种扩展实体数据接口方法，基于该方法研制了通用扩展实体数据接口模块ＡｕｔｏＸＤＡ．论述了基于ＡｕｔｏＣＡＤ平台开发接口模块的主要特点和在ＡｕｔｏＸＤＡ中采用的数据模型、软件接口方案、高速缓冲机制及其在有限元建模软件中的应用等．

Access to extended entity data is an important technique to develop applications of AutoCAD. The method of access to extended entity data is presented. Based on this method, the module of access to extended entity data is developed. The fundamental features of developing application on AutoCAD platform, date model, solutions of software interface and high speed buffer mechanism are emphasized.