Introduction to Selection Buffers
Selection is the process of choosing items on which you want to perform an operation. In , before a feature tool is invoked, the user can select items to be used in a given tool's collectors. Collectors are like storage bins of the references of selected items. The location where preselected items are stored is called the selection buffer.
Depending on the situation, different selection buffers may be active at any one time. In Part and Assembly mode, offers the default selection buffer, the Edit selection buffer, and other more specialized buffers. Other modes offer different selection buffers.
In the default Part and Assembly buffer there are two levels at which selection is done:
• First Level Selection
Provides access to higher-level objects such as features or components. You can make a second level selection only after you select the higher-level object.
• Second Level Selection
Provides access to geometric objects such as edges and faces.
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Note:
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First-level and second-level objects are usually incompatible in the selection buffer.
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Creo TOOLKIT allows access to the contents of the currently active selection buffer. The available functions allow your application to:
• Get the contents of the active selection buffer.
• Remove the contents of the active selection buffer.
• Add to the contents of the active selection buffer.