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Defense > Programmer's documentation > Essential Features > Managers > Layers
 
Layers
To organize graphic objects in a manager you place them in multiple storage areas called layers.
Each graphic object stored in a layer is unique to that layer and can be stored only in that layer.
Instances of the IlvManager class handle a set of graphic objects derived from the Rogue Wave® JViews class called IlvGraphic.. The different graphic objects stored throughout the manager all share the same coordinate system. For this reason, a manager is a tool designed to handle objects placed on different priority levels. “Priority level” here means that objects stored in a higher screen layer are displayed in front of objects in lower layers.

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