Specifications

3.4.5 : Selecting the Range of Thumbnails
SCAN’R displays only sixteen (16) thumbnails at a time. As of version
1.2, SCAN’R includes a scrolling feature that allows the operator to select
the range of 16 thumbnails to display. The scroll bar is located at the right
side of the thumbnail display group.
As each file is scanned, SCAN’R creates a thumbnail for each bat call
that is detected. Once the number of thumbnails increases beyond the size
of the display, the scroll bar will turn light green and the scroll display
will be adjusted to indicate the number of thumbnails that are available.
The number of thumbnails that can be created per snapshot is limited to
two hundred. Once SCAN’R reaches this limit, it will stop generating
thumbnails. The limit only applies to thumbnail generation for display
purposes. Note that SCAN’R will scan each snapshot to completion and
it will generate parameter measurements for all bat calls detected.
To operate the thumbnail scroll bar, simply click and hold the left mouse
button while the cursor is on top of the light green bar and then drag the
bar to the desired position. The display updates as the bar is moved. This
allows the operator to quickly scan through large numbers of thumbnails.
Once the desired position is reached, simply release the left mouse button
an the display will be updated with the new position.
New feature: One new feature in SCAN’R version 1.2 is that the scroll
bar can also be used in zoom mode. Double click a thumbnail to bring up
zoom mode. Then, as before, click and hold the left mouse button while
the cursor is on top of the light green bar and then drag the bar. If you
drag the bar slowly enough, the zoom window will display a progression
thumbnails. This allows the operator to inspect a sequence of thumbnails
more easily. This is also a good way to study bat calls in a time-
sequenced “movie mode”.