| A framework to supply the Graphic3d structure of the object to be presented. On the first display request, this structure is created by calling the appropriate algorithm and retaining this framework for further display. This abstract framework is inherited in Application Interactive Services (AIS), notably by AIS_InteractiveObject. Consequently, 3D presentation should be handled by the relevant daughter classes and their member functions in AIS. This is particularly true in the creation of new interactive objects. More...
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