The current x position of the vertical crosshair will be marked and an additional line of readout will be displayed at the bottom right of the window. This additional line of display shows, in real time, the current cursor x position relative to the marked position. As the mouse is moved, while still holding down the left mouse button, this difference display is updated. This is useful for quickly measuring coupling constants, line widths, etc. This line also shows the average of the frequencies of the marker and crosshair cursors, for easy determination of the chemical shift of mutiplets such as doublets.
All functions return to the default base state of operation when the left mouse button is released.
Users with a single-button mouse can press the period key on the keyboard in place of the right mouse button. Show me about using the cursor. The NMR data will be plotted as it is currently being displayed. Spectral parameters will be plotted at the bottom of the NMR plot. If the printer is not currently in the landscape mode, it should be placed into the landscape mode with the printer dialog box when printing.