Chapter 3The Screen

This chapter describes the name and role of each part of the LOGADEC screen. Later chapters use the names introduced here.

3.1The whole screen

3.2The toolbar at the top

The strip at the very top of the screen holds buttons that affect the whole screen. Hover the mouse over a button to see its name.

Button	What it does	Chapter
1 pane/2 panes	Shows one graph, or two graphs side by side	Chapter 5
Analysis	Shows an XY scatter plot next to the time series	Chapter 10
Investigate	Examines analysis results in detail next to the time series	Chapter 8, Chapter 9
Overlay/Stacked/FFT	Overlays series / splits them into tiers / shows them by frequency	Chapter 5, Chapter 8
Presets	Registers and recalls display ranges and combinations of items	Chapter 6
Formula	Creates new series from formulas	Chapter 7
Export image	Exports the graph as an image (PNG, JPG, WEBP, SVG)	Chapter 11
Export data	Exports data to CSV, TSV, or Excel	Chapter 11
Measure	Measures the difference (time and value) between two points you specify	Chapter 5
Save/Load	Saves and opens settings only, or settings with data (.lgd)	Chapter 11
Undo/Redo	Undoes / redoes operations (`Ctrl` + `Z` / `Ctrl` + `Y`)	—

3.3The pane bar

The strip above the graph holds operations for each "pane" (an area that displays a graph). With 2 panes, the left and right panes each get their own bar.

Button	What it does
CSV/Excel	Loads a file into this pane. In a pane that already has data, the file is added
Folder	Finds files in a folder and imports them all at once (Chapter 4)
Demo	Creates demo data for practice (choose the type and number of series, then Generate)
Capture	Exports this pane as an image
Select series	Opens the Select series to display screen, where you search by name and select the series to display. Appears once data is loaded
Wheel: X-axis/Wheel: scroll	Appears only in Stacked and FFT. Switches whether the wheel zooms X in and out or scrolls all tiers up and down (Chapter 5)
Reorder	Appears only in Stacked. Reorders the tiers by dragging. Lights up while on (Chapter 5)
≡ (right end)	Shows or hides the Sidebar

3.4The five sidebar tabs

The sidebar is where you set which series to display and how the graph looks. The five tabs at the top switch its contents.

Tab	Main contents
Series	The list of series. Toggle display with the check boxes, and use ▾ to set color, line style, filters, and more. You can also use Show selected only and filter by name. Bulk style… changes colors and line styles all at once
Sources	The list of loaded files (data sources). For each file, you can show or hide it, change the look of its series all at once, or delete it
Axes	Sets the range, ticks, labels, axis placement, and font size for the Y and X axes
Display	Display settings such as Theme, Legend, Zoom behavior, and Max visible series
Analysis	Where you run analyses. Run all analyses at once with Full diagnosis, or open and run analyses one at a time

3.5Keyboard and mouse

This is a list of frequently used operations. In LOGADEC, press ? to display the list of operations. Zoom operations are described in detail in Chapter 5.

Action	Effect
Wheel	Zooms X in or out
`Shift` + wheel / wheel over the Y axis	Zooms Y in or out
Drag	Moves in the X direction
Hold the middle button and drag up or down	Zooms X in or out
`Ctrl` + wheel (in Stacked or FFT with Wheel: scroll)	Zooms X in or out (the wheel without a modifier key scrolls up and down)
Click X-axis edge	Enter value to change X range
Click Y-axis	Enter value to change Y range
`Ctrl` + `Z`	Undo
`Ctrl` + `Y`	Redo
`Ctrl` + `S`	Save data; subsequent presses overwrite the same file
`?`	Show this shortcut list
`Esc`	Close dialog / cancel measurement

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