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To explore the inner structure of the Coffee Maker object, double-click on it in the Internal Block Diagram. You are now presented with the following view:
We are now viewing the internal structure of the Coffee Maker object. We can see that the name of the parent object (Coffee Maker) is actually displayed at the top left-hand corner of the Internal Block Diagram. The Coffee Maker contains several subsystems, notably
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Now, double-click on the Heating & transfer system object. You can see that there are even more subsystems inside this object, notably Low pressure heating system and High pressure heating system.
The flows originating from outside the focus system (Heating & transfer system) are represented using a white port while flows consumed outside the focus system end in a black port.
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You can also use the treeview to navigate in the object hierarchy. If the treeview panel is not displayed, click on the Show Treeviews button to display it.
At the moment, you should find yourself at the Coffee Maker system. Take a look at the Treeview, you should see that the Coffee Maker is highlighted in light gray.
If you click on the Brewing and filtering system in the treeview, the view in the Internal Block Diagram changes: focus is now on the Brewing and filtering system. Also, in the Treeview, this system is now highlighted. If you now click on the Go Parent button (or use Ctrl+Shift+Up shortcut) in the Navigation Panel of the Home Category, you return to the Coffee Maker level. Note that the Coffee Maker becomes highlighted also in the Treeview.
These two different representations of the system, the Internal Block Diagram and the Treeview are linked. They are also equivalent in the sense that they both contain all the same objects. You can verify this by opening the nodes of the Treeview and exploring their contents. The flows can be seen under the nodes of the final objects producing or consuming them.
There are also a few other useful navigation tools, like Design Panel of the Home Category with its Zoom and Pan buttons or Zoom Panel of the Diagram Category. You can for instance Zoom in on the Internal Block Diagram or, if you want to display all the diagram objects at a time, you can use the Zoom to fit tool.
Return to the Coffee Maker object. Sometimes one wishes to display the internal structure of a given object in the Internal Block Diagram. To do this, right-click on the chosen non-flow object, the Storage system, and choose Expand from the context menu. This enlarges the Storage system object and displays the Coffee pot component inside it. The same can be achieved if double-clicking on [+] button near the Storage system,
Next, we learn about Navigation in Projections.
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