In the FFT view of ibaInSpectra (ibaPDA), ibaAnalyzer-InSpectra and ibaQPanel, all settings can be adopted node by node in the preferences and are thus applied to the newly opened FFT views. Changes can be saved by pressing the button <Apply node to preferences>. The preferences cannot be viewed separately in ibaAnalyzer. A new FFT view must be opened in order to view preferences. In ibaPDA, you open the preferences via the menu Configuration - Preferences.

The node FFT view offers general settings for the display of the calculated FFTs. The following figure shows the settings in the properties of the FFT view. The preferences dialog looks similar.

Display configuration

Choose between single spectrum, the waterfall view and the contour view of the spectra. The visibility of the main window can also be set here.

You can select Band spectrum instead of the Original spectrum, then the results of the individual bands will be displayed. Settings for this are made in the Bands node, see chapter Bands.

With the Show close buttons option you can control the visibility of the close buttons and the lines to the left of the display.

Perspective: Drop-down list Custom perspective

If you have saved different perspectives for the waterfall (3D) view, then you can select one of them.

Click the button <Manage perspectives> to open the dialog for managing perspectives. This lets you delete existing perspectives, copy them to the clipboard or paste them from the clipboard. Since perspectives are always specific to one FFT view, you must copy and paste a perspective that you want to use in exactly the same way in another FFT view into the other FFT view.

The perspective is saved in the display. Once you have configured the desired perspective, select Save perspectives in the context menu of the main window. Give the perspective a name and close the dialog with <OK>.

Additional legend

When this option is enabled, another legend is displayed in the main window in addition to the normal signal legend. You can define the content of this legend yourself. For example, you can enter a detailed multi-line text, in which placeholders for dynamic information can also be used. The following placeholders are available:

    • %sn: Input signal name

    • %iu: Input unit

    • %su: Spectrum unit

    • %c1: Input signal first comment

    • %c2: Input signal second comment

    • %sp: Input signal sampling time

    • %x: X-value at interactive marker

    • %y: Y-value at interactive marker

    • %xmouse: X-value at mouse cursor

    • %ymouse: Y-value at mouse cursor

    • %tmouse: Z-value at mouse cursor

    • %xmv: X-value of the nearby marker position

    • %ymv: Y-value of the nearby marker position

    • %tmv: Time value of nearby next marker position

    • %nmv: Name of the nearby marker position

    • %imn: InSpectra Expert module name

    • %rms: RMS value of the selected plane (based on incoming values)

By default, all signal-related placeholders are determined based on the first spectrum. To identify another spectrum, use a colon followed by the word “spectrum” and the index of the spectrum, e.g. "%sn:spectrum1", in order to refer to the first spectrum.

Use the optional formatting string “w.p” to specify the format of the numeric parameters, where “w” is the width and “p” is the precision. The width is the minimum number of the characters shown. Precision is the number of decimal places. Example: "%5.3y1" indicates the Y-value for marker X1 with a width of 5 characters and a precision of 3.

The display always shows the information for the uppermost signal in the main window. The following figure shows the definition of an additional legend (right) and its display (left).

Synchronization

By default, if only one spectrum is displayed in the FFT view, identifiers, markers and zones are synchronized with this spectrum and this setting is not available. If multiple spectra are displayed in the FFT view, you can define the main spectrum here which will be used for synchronization.

Pause/Continue

This function is only available in ibaPDA. If this option is enabled, the visualization of the FFT is controlled by a digital signal. The FFT calculation is continued.

If the digital signal is TRUE (1), the visualization is paused and the display shows the frozen image of the last result.

If the digital signal is FALSE (0), the visualization continues and the display is updated regularly.

You can also enter a time in s after which live mode is automatically continued.