Objects Overlays

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Plot

Plots can be of three types:

Experimental plots (numerical data typically in the form of frequency,intensity pairs)
Bitmaps (a picture copied or scanned where the raw data is not available.)
Calibration plots, containing built in line lists - see Calibrating Spectra.

For more information see the overlays window. A few settings are valid for all plots:

Settings

Units	Horizontal Axis units.
IntensityUnits	Selects vertical units for plot, or autoscaling
Colour	Colour for plot.
Hide	Set to hide this plot.
ZeroValid	Set if zero in data is correct.
AutoMin	If set, Ymin automatically updated to minimum point in plot range
AutoMax	If set, Ymax automatically updated to maximum point in plot range
`FixCentre`	Apply FrequencyScale so that centre does not move if set

Parameters

FrequencyOffset	Frequency offset used when displaying plot.
`FrequencyScale`	Scaling factor for frequency; see also FixCentre
Ymin	Lower end of current plot range; overwritten with lowest value in current range if AutoMin set
Ymax	Upper end of current plot range; overwritten with lowest value in current range if AutoMin set