CAD/CAM 中 Undo/Redo 技术的研究

Research on Undo/Redo Technology in CAD/CAM

介绍了一种基于实体模型的ＣＡＤ／ＣＡＭ系统的Ｕｎｄｏ／Ｒｅｄｏ操作实现技术．它支持多层次嵌套的ＣＡＤ／ＣＡＭ建模环境．因而当用户在ＣＡＤ／ＣＡＭ系统环境中建模时，可以方便地对模型进行Ｕｎｄｏ／Ｒｅｄｏ编辑操作．

In order to implement Undo/Redo operation in CAD/CAM system based on solid model,a technology supporting multi hierarchical and nested CAD/CAM modelling system is presented.Hence users can edit the model through Undo/Redo expediently when constructing model in CAD/CAM environment.