Campbell Scientific RTDAQ Software - Manual (Page 182)

Section 7. Monitoring Data in Real-time
7.5.2 Similarity between the Real Time Graph and the Fast
Graph
The Fast Graph operates in a similar fashion to the Real Time Graph, except
that it cannot display points on the lines it draws, and it will not attempt to
draw lines or points that are redundant based on the current pixel resolution of
the display screen. This increases the drawing speed of this screen, which may
be needed for some high-speed applications. For details on how to use the
Fast Graph, refer to the Real Time Graph sections described earlier in this
chapter.
7.6 XY Plot
An XY plot is a graphical display in which measured data from the datalogger
is not only used for the y-axis values (such as in a regular graph), but also for
the x-axis values (instead of using time for the x-axis as is typically done, such
as in a regular time-series graph). By using one of the measured values as the
x-axis, a special type of comparison can be made between measurements.
Measurements which are linearly dependent to each other (related by a linear
relationship) should form a line on an XY plot. When exact lines are not
formed, the relationship between the two measurements is evaluated by
viewing how closely the graphed points approximate a line. There are other
kinds of graphical patterns produced by XY plots that may have analytical
7.6.1 Using the
significance for certain applications.
XY Plot
To use the XY Plot window of RTDAQ, ensure that you are connected to a
datalogger, then select the Monitor Data tab. Click on the button labeled XY
Plot.
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