Window : Axes

Make And Edit Spectrum Window Axis Types

The purpose of this popup window is to allow the user to create new types of axis for the display of spectra within windows. This requirement is relatively rare and under most circumstances the standard, default axis descriptions will not need to be changed. The popup is divided into three tabs which display different aspects of the spectrum display axis definitions.

The first “Axis Units” tab lists the different units of measurement that may be used in an axis. Although new kinds of axis may be created, only the ppm, Hz and “arbitrary” units are currently used by Analysis, i.e. spectrum windows only display standard NMR isotope axes and intensity for a “value” Y axis.

The “Axis Types” tab allows the user to specify new kinds of NMR data axis, for example to be able to work with spectra that have an isotope type that is not part of the normal Analysis setup. Clicking [Create] will prompt the user to specify the characteristics of the axis, and some of these can be adjusted after the initial definition. Under normal circumstances the only features that the user is likely to edit are the “Region”, “Decimal places” and “Peak Size” columns. The region describes the upper and lower bounds of the axis vales, and dictates the maximum extent of a spectrum window display when fully zoomed out; a spectrum window cannot display outside the bounds of its axes, however these bounds may be changed.

The “Panel Types” tab allows the user to create sub-categories within a given kind of axis. These are not used for very much, but are used with the 1D ruler lines, so that a line is only drawn on axes that share the same panel type. Accordingly, a ruler line drawn on an amide 1H axis (panel type “H1”) will not show on the indirect 1H axis (panel type “H2”). The user can create extra panel types if this kind of distinction is required, although “H1” and “H2” types are present by default. The panel type of a spectrum window axis is set via the “Windows & Axes” section of the main Windows popup.

Main Panel

button Clone: Clone popup window

button Help: Show popup help document

button Close: Close popup

Axis Units

Documentation missing

Table 1
# Row number
Name Short text name for the unit of measurement, for graphical display
Is backwards? Whether the axis values decrease left to right & bottom to top. For example “ppm” does, but most other units do not

button Create: Create a new specification of a unit of measurement

button Delete: Delete the selected measurement unit

Axis Types

Documentation missing

Table 2
# Row number
Name Name of window axis type, for graphical interface etc.
Isotope codes Which isotopes the axis definition covers
Measurement Type What kind of physical property is measured along the window axis
Dim Sampled? Whether the axis represents discretely sampled values or a continuum of values (albeit fixed to a data grid)
Region The upper and lower bounds for numerical values allowed on the axis (Editable)
Decimal places The number of decimal places used to round axis values in graphical displays (Editable)
Peak Size The relative scale for the peak symbol (i.e the “X” shape) size compared to other axes (Editable)
Allowed Units Units of measurement allowed for this kind of axis (Editable)

button Create: Create a new kind of axis to use in spectrum windows

button Delete: Delete the selected window axis type specification

Panel Types

Documentation missing

Table 3
# Row number
Name Name of panel type specification
AxisType Which kind of axis the panel is a subtype of

button Create: Add a new panel type specification (a subtype of a given kind of axis)

button Delete: Delete the selected panel type specification

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