User Interaction and Feedback

Much of the functionality provided by the Objective Chart view classes — data selection, zooming, data dragging, and chart tips — is made possible by the feedback management system. Objective Chart stores information relating each line, wiget, bar, or pie wedge on the screen to the data object that it represents. This makes it possible to quickly determine which data object is displayed at the location of the mouse pointer or any other screen location.

The following topics describe the operation of user interaction and feedback:

  • Feedback Management

  • SRGraphFeedback

  • SRGraphPosition