Stack displayed spectra

By clicking in the tool menu bar at the left corner of screen, displayed spectra are stacked.  The data processing panel appears at the right side of the figure.  The view angle of stacked figure can be changed by moving  [view angle] track bars or by moving a mouse on the figure.  When the mouse is moved horizontally, figure is rotated along Y axis.  If the mouse is moved vertically, figure is rotated around X axis.  The order of display can be changed by checking [reverse display] check box.  Frame design can be modified by selecting [frame wire design] tab.

Zoom figure

Click [Z] button. Click at the left or right side of zooming abscissa range in the figure, then vertical plane or bar appears.  Click plane frame or bar, and drag it to the other side of the moving range by the mouse.  Again click [Z] button, then the enclosed area by the vertical planes or bars is zoomed.

To stop stacking, click red [X] button in the data processing area.