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Plot display options
When performing experiments with multiple probes, the StreamSmart Aplet places
each data stream in its own swim-lane by default. The data streams appear in the
numerical order of their channels, from top to bottom of the display. Under certain
circumstances, you may want to see multiple data streams superimposed instead
of separated in swim-lanes. In the Plot Setup menu, the Plot Display field allows
you to choose either option. This field has two settings: Stack and Overlay.
Figure 4- 1 9 depicts the data streams from two microphones shown with the default
Stack option, with the data streams separated in their familiar swim-lanes. Press
!CHOOS and select the Overlay option to see the streams superimposed, as in
Figure 4-21.
Figure 4-19 Stacked
Figure 4-20
Figure 4-21 Overlaid
Filtering data for display and export
Under most circumstances, each pixel in the display of the data stream represents
multiple sensor readings. Depending on the current window, each pixel could
represent quite a large data set. For example, in Figure 4-22, each pixel has a
width of approximately 0.1 seconds (13s/130pixels=0.1s/pixel). But StreamSmart
400 has collected approximately 570 readings in each 0.1 second interval. For
display purposes, those 570 readings are represented by a single value. In
Figure 4-22, the readings taken from 6.85 seconds until 6.95 seconds have been
averaged to obtain a reading of 0.578. The pixel containing the point (6.9,
0.578) has been turned on to represent that set of readings.
Figure 4-22
Figure 4-23
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