Stella Modes, Views, and Panels

From the model window, you can create and edit the model, run it, and explore the results. From the interface window you can create, edit, and run the interface.

Stella Modes

In the model window

The Stella model window has two modes. You can switch between these modes whenever you want. Sometimes, the mode changes automatically. Here's how it works:

In the interface window

In addition to Edit and Experiment, you can select Presentation mode on the Stella interface window. Here's how it works:

Note: You can't switch out of Edit mode if your model has errors that would prevent simulating.

Stella Views (model window)

There are two Stella views. You can switch between them by clicking on the down arrow next to the displayed view in the Model Window Mode Toolbar, or by clicking on the icon at the bottom of one of the Property Panels.

On the interface model view, objects display as they would in Map view.

Stella Panels

Setting values and attributes is mostly done through persistent panels, though some dialogs remain. To work with an object in a panel, you click on the object. Then the panel will display the attributes associated with that object - whether it be equations, appearance or actions.

Panel Geometry

Panel entries are designed to fit in the least amount of space possible, but there are often a large number of things that can be set. To keep the size manageable, many of the lesser used options are collapsed into just titles. For example graphs give you control over the fonts used for titles, legends and axis labels. By default, those options are collapsed:

To look at the options for a specific entry simply click on the arrow next to the label and the section will expand:

You can then collapse the content using the arrow at the top of the section.

Most of the documentation will use screen shots with the sections expanded so that all options can be discussed.

Properties pan

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In Edit mode, you can view the properties of a selected object in the Properties panel:

Pages panel (interface)

The pages panel, which by default docks on the left, allows you to navigate the interface pages and stories. See Pages Panel(Interface) for more detail.

Results panel (model)

When the Results panel is active in either Edit or Explore mode, you can see data from the selected object in the Results panel. See Results Panel.

Causal Lens (model)

Display a variable and the variables that it impacts for all the current runs. See Causal Lens™.

Parameter Control

Display a list of variables that have had their values changed relative to their equations, and change their values temporarily. See Parameter Control Panel .

Selection History

Show a list of variables you've selected and click on one of them to reselect it. See Selection History.

Simulation Log

Show any variables that go above or below their bounds during a simulation. See Simulation Log.