Event Driven Graphics

Software Customisation Reference Manual

Event Driven Graphics (EDG) describes the AppWare implemented EDG interface, which is used as the interface between most applications/utilities requiring graphics interaction and the graphic canvas.

It describes the Public methods and members of the objects used within the system and how they interact with each other. Also it describes how the AppWare developer can use the system, write their own handlers, etc.

The EDG interface has been developed to allow a common interface for the AppWare developer to setup the graphic canvas in an EDG mode, which is relatively simple and easily extendible. This will allow the developer to concentrate on the development of their own application without the need to know the underlying mechanism (core implementation) of the EDG interaction handlers and system.

The system handles all the underlying maintenance of the current events stacked e.g. associated forms, initialisation sequences, close sequences, etc.

The current implementation of the system has mainly been developed for interaction with the 3D graphic views in the MODEL module. However, the interface can be used with any of the modules that use the same executable and the standard 3D graphic views.

Note:

EDG does not form part of the formal definition of AVEVA E3D™ and is subject to change. There is no AVEVA commitment to keep or maintain this interface in subsequent versions of AVEVA E3D™.