Visualization Tools User's Guide


Adding Objects to the Visualizer Display from the Widget Scope

Using the Widget Scope, you often find objects whose long-term behavior would be interesting to observe. These objects can be added to the Object Visualizer display directly from the Widget Scope. Simply select the objects of interest, and click the Visualize button. If the Object Visualizer is not already open, it will be opened. Then the objects of interest will appear.

For example, you could:

  1. Open a Widget Scope, as above.
  2. Open a Hierarchy Browser on Object, as above.
  3. Click Probe.
  4. Click the upper-left pane of the hierarchy browser.
  5. In the scrolled window of the Widget Scope, click the last line. It should contain something like an EtClassesBrowser.
  6. In the Widget Scope, click the Visualize button.

    An EtClassesBrowser object will appear in the Object Visualizer display.

  7. In the upper-left pane of the hierarchy browser, double-click the Object line.

    A large amount of activity is apparent in the visualizer display.

  8. In the visualizer display, click the box representing the EtClassesBrowser object.

    A black outline appears around it to indicate that it is selected.

  9. From the Instances menu of the visualizer, select Browse Behavior.

    Now you can see which methods do a lot of work as the class hierarchy is expanded and contracted in the hierarchy browser pane.

To observe more of the activity that occurs during expanding and contracting, you could select lines in the Widget Scope scrolled window, and click the Snoop button. This would open a Snooper (see page "The Snooper") which you could use to find more of the related objects. Then from the Snooper you could select objects and press the Snooper Visualize button to view the newly discovered objects.


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