It is the plot an acquisition ends in. The strip chart takes samples one at a time, the scope takes triggered captures and the trend takes historian time; the waveform graph takes a record and draws it whole. Plots share the x axis and each is read on a y scale. Scales are overlaid on one plot area or stacked in bands. A cursor is free or locked to a plot, and the cursor legend reads every cursor and the difference between the first two. Records are reduced to one column per pixel with the minimum and maximum kept, so a one-sample spike still reaches its height.
One capture of 20,000 samples per channel at 100 kS/s from a test rig: the drive voltage, the motor current and two accelerometers. Drag a cursor, or click the plot to move the active one; press N to switch cursors, the arrow keys to step, + and - to zoom and 0 to fit. Drag the plot to pan, use the wheel to zoom about the pointer, hold Shift and drag to zoom into a box, and double-click to fit again.
A plot with an x array is drawn as given, in the order given, so a closed curve stays closed. Points draw a scatter. The scale is fixed by its limits here rather than following the data.
Bars, a step plot and a line on one graph, and a frequency response on a logarithmic x axis with the corner frequency annotated. Annotations are placed in data coordinates and, with a plot named, take their y from it.
Keyboard: the legend and the tool palette are each one tab stop; the arrow keys move inside them and Enter or Space activates. The plot itself is a tab stop for the cursor and zoom keys listed above, and its label is a summary of what it shows.