Model Panel

The Pisces Model Panel.

The top of the model panel allows the user to determine the bounding box. The bounding box is a rectangular subset of the domain in which Pisces will attempt to compute the level set of the current model. Any portion of the level set which is outside of the bounding box will not be computed.

If the current model has parameters, then the value of these parameters may be set by modifying the text field in the middle region of the model panel.

The bottom region of the model panel includes a list of the names of the output variables. By changing the text fields in this regions, the user can compute level sets as the level is varied. For example, you may be interested in the level set f=c as c for different values of c.

The Pisces Permutation Panel.

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The "Permute" button will bring up the permutation panel. This panel allow users to exchange the role of domain variables and parameters. By choosing a variable to be in the domain, you are saying that you want Pisces to allow this function to vary while it computes the level set. Domain variables are sometimes called "active variables" whereas parameters are sometimes called "inactive variables."

Important: after making a change to the permutation panel, you must press the "Apply" button on the permutation panel, or your change will not be implemented! In order to ensure that you either "apply" your change or cancel it, the permutation panel grabs the screen's "focus" and will not let you proceed in Pisces until you have applied or canceled your change.

Pisces comes with a set of pre-installed models. Documentation on the definitions of pre-installed models is available in another section of this documentation.