1. 创建自定义的 Entity Owner 类 首先,创建一个自定义的 Entity Owner 类,继承自SelectMgr_EntityOwner: #include<SelectMgr_EntityOwner.hxx>#include<AIS_PointCloud.hxx>#include<Prs3d_Presentation.hxx>#include<PrsMgr_PresentationManager.hxx>#include<Graphic3d_ArrayOfPoints.hxx>#include<V3d_View.h...