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Toolbar buttons

Some toolbar buttons, and what they do.

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Back
Undo the last viewpoint change (such as a zoom or pan).
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Forward
Redo the last viewpoint change (such as a zoom or pan).
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Randomize
If the view contains rays with a random pupil pattern, this button generates a fresh set of random rays.
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Surfaces
Opens the surface worksheet.
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Export
Opens an export sheet for the current plot window.
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Options
Summons the options panel for the current plot window.
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Zoom to fit
[Plot window button] Scales plot windows to show all data.
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Zoom to fit
[Layour window button] Scales layout to show all surfaces.