The Parametric Animation Panel

Parametric Animation Panel

The Pisces Parametric Animation Panel.

The parametric animation panel can animate a two-parameter family of model along a one-parameter path in parameter space. In other words, if a model depends on the parameters (a,b), then the parametric animation panel allows the user to animate level sets of the model along any path (a(t), b(t)).

How it works

The animation is created by the following algorithm:

Controlling the Algorithm from Pisces

The parametric animation panel has the following fields:
The number of frames of animation that will be produced. This must be a positive integer.
Starting t
The value that the independent variable takes for the first frame of the animation.
Ending t
The value the independent variable takes for the last frame of the animation.
Current t
The current value of the independent variable.
The menus and Tcl expression in these fields determine the parameters to animate and determine the parametric paths that the parameters will follow. The main point to remember about Tcl expressions is that you must place a $ (dollar sign) in front of the name of the variable (which is always t).
This menu selection determines method of computing the level set. The parameters for each algorithm may be set using the control panel specific to each algorithm.
To see the animation press the Go button. To step through the animation one frame at a time, you may press the Step button.

The animation path you have specified may be viewed by pressing the Show Parametric Path button.

Known Bugs

Same as for the animate panel. Also, the name of the independent variable must be t.

Bug Reports

Implemented By

John Golden and Erik Streed.
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Last modified: Sun Nov 26 18:50:32 1995
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