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Based on the features of NC horizontal milling process, the 3D geometric model of virtual machine tool was established by Microsoft Visual C++6.0, MFC and OpenGL graphics library. The method of Construction of Solid Geometry (CSG) and Boundary Representation (B-Rep) were adopted, and some realistic effects treatments (including material, light, texture mapping, etc.) were applied. The established...
Data persistence is a part of important enterprise-level application system, using technology on object-oriented and relational database to develop project is a difficult thing. This paper proposed a data persistence model based on the DAO (Data Access Object) pattern, through variable mechanism encapsulated the underlying data access independently, making the object model and relational database...
Schema extracting for XML is broadly used in the field of data storing, query optimization and heterogeneous data integration. This paper presents a method based on node relative path for extracting XML schema. The new approach finishes extracting schema by scanning XML document once-over and extracting nodes and relative paths. It can overcome the defects including circles and lack of sides. This...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.