The graphics-window

tv-root (see figure 3.1 p.

) is the main graphic-window. By default all spectra loaded are displayed in this window.

**Figure 3.1:** Graphic-display window immediately after startup with a ⁵⁶ Co spectrum loaded.
$\begin{figure} \begin{center} \leavevmode \epsffile {pictures/tv-root.ps} \end{center}\end{figure}$

The status-window displays the window name as well as the buffernumbers of the active spectrum, cut, directory and matrix. In parentheses the buffernumber for the spectrum where the cut is saved is printed as well as the buffernumber of the projection attached to the active matrix. In the case that a spectrum is loaded the x- and y-position are displayed, otherwise questionmarks are printed at the place of the coordinates. In windows with more then one pane (see section 4.2.1 p.

) the name of the currently active pane is displayed.

The lower subwindow or subwindows called graphic-pane(s) display the spectra and show their according names which are printed in the upper right corner. In this window you can perform operations with the mouse as described in section 3.5 on page

. The graphic-pane is surrounded by scales at all sides which show the counts at the left and right side (y-scale) as well as the x-position in channels at the top and energy (see section 4.8 p.

) at the bottom (x-scale) if an energy calibration is loaded. The scales are positioned in the frame. The grip is used to move the line between the status-window and the top frame.

You can switch the y-scale between linear, logarithmic and squared scale with the aliases:

You can change the viewport (this is the visible part of the spectra) in many ways with the hotkeys listed in table 3.1 on page

Spacebar	tv $>$ window mark vertical enter cursor;	Set vertical markers to define x-range to expand
-1	tv $>$ window view full y;	Zoom out
-- -9	tv $>$ window view stretch (-1 to -9) cursor 0;	see appendix A on page
,	tv $>$ window view full y;	Move the viewport to the left
	tv $>$ window view shift -70.0 0.0;	by 70% of the visible channels
.	tv $>$ window view full y;	Move the viewport to the right
	tv $>$ window view shift 70.0 0.0;	by 70% of the visible channels
0	tv $>$ window view full y;	Zoom out
	tv $>$ window view stretch -1 cursor 0;
1	tv $>$ window view full y;	Zoom in
-- 9	tv $>$ window view stretch (1 to 9) cursor 0;	see appendix A on page
$<$	tv $>$ window view full y;	Move the cursor to the left
	tv $>$ window view shift -70.0 0.0;	by 70% of the visible channels
$>$	tv $>$ window view full y;	Move the cursor to the right
	tv $>$ window view shift 70.0 0.0;	by 70% of the visible channels
e	tv $>$ window view expand;	Expand viewport to the x-range between markers set with Spacebar
f	tv $>$ window view full both;	Expand visible part to
	tv $>$ window view expand;	full size
x	tv $>$ window view full x;	Expand viewport to full size in
	tv $>$ window view expand;	x-direction
y	tv $>$ window view full y;	Expand viewport to full size in
	tv $>$ window view expand;	y-direction
$\|$	tv $>$ window view full y;	Center the spectra around
	tv $>$ window view center x cursor;	position defined by cursor