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Each CPU Simulator has
a set-up region and two or more palettes. Each palette
consists of a set of tools and elements with properties that
can be set by student or instructor. The instructor also has
complete control over which palettes appear on the screen,
which elements and tools appear in a given palette, and
which properties will be accessible to the student.
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For example, the
Light & Color Lens Images Simulator has an
Elements Palette, Measurement Tools Palette, Control Palette
(turns propagation of light rays on and off), and a Shapes
(graphics) Palette (see left picture below). There are
options to show or not show any of these palettes (middle
picture) Also, within each palette, there are options to
show or not show each element or tool. The picture on the
right shows that the Measurement Tools palette has been
hidden, and within the Elements Palette the eye and square
obstacle elements have been hidden.
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Each element also has
a property box, where parameters can be changed. The
instructor also has the option of "hiding" some of these
properties. For example, the student can normally choose
either a convex or concave lens in the lens property box,
but the instructor (via a security password) can hide that
choice.
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