There is a general control panel (see Fig. 
)
where all the previously mentioned panels reside as pop-up icons.
There are also a set of additional buttons for controlling various
graphical attributes, such as different rendering modes, or for
turning on and off certain features, such as drawing the indices of
the fishes. Moreover, the user is able to push buttons to output
certain data, such as the camera angles, or to dump the current
graphics window into an image file, etc.
When the ``Fish View'' button is pushed, a fishview control panel (see
Fig. ) pops up, allowing the user to select to
view binocular retinal images from a chosen fish's point of view.
Slider ``pan'' gives the gaze angle specifying the horizontal rotation
of the eyeball and slider ``tilt'' gives the gaze angle specifying the
vertical rotation of the eyeball. The retinal images are normally
rendered as if the fish is looking in the direction of swimming
( 
and 
), but the user can `interfere' by
manipulating ``pan'' and ``tilt'' to get different views. The retinal
identity maps mentioned in Section
(see Fig. ) can be rendered on command by pressing
the ``ID map'' button.
Figure: The general control panel.
Figure: The fishview control panel and the rendered identity maps from fish `1'.
| Xiaoyuan Tu | January 1996 |