Tektronix CSV import: use channel headers as signal titles

[StefanoPierini-Codra]

Summary

When importing a CSV exported by a Tektronix oscilloscope, DataLab correctly detects the signal objects (for example, CH1, CH2, and CH3) in the object list. However, the plotted signal titles do not match those channel identifiers, making it difficult to identify each curve.

Steps to reproduce

1. Export a multi-channel CSV file from a Tektronix oscilloscope.
2. In DataLab, choose Import text files.
3. Configure the importer to skip the first 16 lines and use the first remaining line as the header.
4. Import the file.

Actual behavior

The imported objects are identified as channels in the object list, but the curve titles displayed in DataLab are not associated with the corresponding channel names.

Expected behavior

Imported signal titles should use the CSV channel headers, such as CH1, CH2, and CH3, so the curves can be identified consistently in both the object list and the plot.

[StefanoPierini-Codra]

Actual behavior

When importing a multi-channel CSV file, DataLab can already preserve the names inferred from the file headers. In the Labels and units page of the import wizard, clear the pre-filled Title field (for example, Imported from: lmo vs lmo2_000_ALL.csv). Leaving this field empty keeps the inferred titles, such as CH1, CH2, and CH3, as explained in the note displayed in the dialog.

This works well when the original column headers followed by a progressive numbering are the desired signal names. However, the import wizard does not currently provide a convenient way to customize the titles of several imported signals while reusing the corresponding CSV column headers.

Proposed improvement

Add a title-pattern control to the Labels and units page for multi-signal text imports, based on the existing Basename pattern control in the Save to directory dialog.

The pattern should support placeholders derived from the imported data, in particular:

• {title}: the title inferred from the CSV column header (for example, CH1)
• {index}: the one-based index of the imported signal
• {count}: the total number of imported signals
• {xlabel}, {xunit}, {ylabel}, {yunit}: inferred axis labels and units, where available

Example use cases

• {title} preserves the current column-header name.
• Measurement - {title} produces Measurement - CH1, Measurement - CH2, etc.
• {index:02d} - {title} produces 01 - CH1, 02 - CH2, etc.

Expected behavior

• The existing Title field remains available for assigning one identical title to all imported signals when that is desired.
• When importing multiple signals, an optional pattern can generate a distinct title for each signal.
• The default behavior remains unchanged: clearing Title keeps the names inferred from the CSV headers.
• The control, placeholder help, validation, and preview should follow the established Save to directory basename-pattern user interface.