Document Model Object Class Management

Advanced, modern CAD systems usually use relational data models.

The intelligent 3D model and 2D view are the basis for effective graphic unit design, and combine them with standardized methods, thus forming a complete product modeling method supported by CAD.

The shape elements can be combined into parts, which can be combined into parts by using shape elements and parts. The shape elements, parts and components can be used to form the parent parts, and so on, until the complete product.

Models, views and shape elements make up the basic elements of CAD design. As a special CAD document management, they will significantly improve the efficiency of product development.

For this purpose, business object model, basic record and data object class model, parameter table and main diagram are defined.

The parameter list is a document that meets the special format requirements of a CAD system, which contains the parameter values used for variant design based on the master model.

The main graph is a relational CAD model at the level of engineering drawings. After the pformation is processed, the specific engineering drawings can be obtained.

In model basic records and models,

The attribute geometry class, display level, view, view variant and installation status variant form an index key for a display of shape elements, parts and components. This index key is especially important when designing composite products, which can generate all necessary variants from a main CAD model at this time.