Andor Technology iXon Ultra 897 User Manual page 116

DISPLAYING DATA
If you have overlaid a number of traces, the Scale to Active item becomes
Scale to Active
available on the Display Menu. Selecting Scale to Active means that all the data
traces in your Data Window will be plotted against the scales of the active trace.
Vertical axes will be rescaled even if the units do not match those of the active trace.
A Note on Overlays
The ability to overlay data traces is useful if you wish to compare several traces on
the same axes. You can even overlay traces from the same data set: you might, for
example, want to view different parts of the data in different levels of detail by
Zooming In, Zooming Out and Scrolling (see previously) and by using Rescale (see
later in this section).
If you have acquired data in an imaging mode or as a kinetic series (see SECTION
3D
4.5 SETTING THE ACQUISITION), you may view the traces taken from all the rows or
tracks on one set of axes in a Data Window. Select the 3D option under Change
Display Mode on the Display Menu, or click the 3D Display button.
Along with the x-axis (calibrated by default to represent pixels across the CCD-
chip), and the data-axis (calibrated by default in counts), you now see a third (or y-
axis) calibrated in rows or tracks - depending on the acquisition mode you have
selected.
To read off a data value on a particular trace, use the scroll bar on the Data Window
to move the trace into the plane delineated by the x- and data-axes, and click on the
trace to position the cursor on the point of interest (you may need to use the left and
right arrow keys on your keyboard to position the cursor precisely).
The numeric display on the status bar along the bottom edge of the Data Window
will indicate the series member on which the cursor is positioned ('Kinetics'), along
with the corresponding x- and data-values.
If your data set contains a series of images (each of which may represent data
acquired in Kinetics Mode) you will notice that the Data Window has two scroll
Section 4 . 7
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