Persistent heap for dynamic picture objects

G - Physics – 06 – F

Patent

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Details

G06F 9/44 (2006.01) G06F 3/14 (2006.01) G06F 12/08 (2006.01) G05B 19/418 (2006.01)

Patent

CA 2263170

There is provided a process control system having a display program that permits a program designer to create and edit dynamic picture objects in a persistent heap and save the heap to a storage medium. The display program rapidly reads the dynamic picture objects from the storage medium and invokes the objects for viewing on the system's interactive display. When the persistent heap is subsequently read from the storage medium by an operator, the dynamic picture objects stored in the heap do not need to be instantiated and, thus, invocation of the objects is accelerated and optimized. Accordingly, the persistent heap greatly improves the speed in which picture objects can be read from the storage medium, processed by the display program and called-up to the interactive display.

Cette invention se rapporte à un système de commande de processus comportant un programme d'affichage qui permet à un concepteur de programmes de créer et d'éditer des objets-images dynamiques dans un segment de mémoire permanent et de sauvegarder ledit segment de mémoire sur un support d'informations. Ledit programme d'affichage lit rapidement les objets-images dynamiques à partir du support d'informations et appelle les objets devant être visualisés sur le dispositif d'affichage interactif du système. Lorsqu'un opérateur accède ultérieurement en lecture audit segment de mémoire à partir du support d'informations, les objets-images dynamiques stockés dans le segment de mémoire n'ont pas à subir d'instanciation et de ce fait, on accélère et on optimise l'appel des objets. Le segment de mémoire permanent permet ainsi d'accroître la vitesse à laquelle les objets-images peuvent être lus à partir du support d'informations, traités par le programme d'affichage et appelés par le dispositif d'affichage interactif.

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