[GTVL\]ZOOM [Argument(s)] [/NEW] [/CURRENT]
ZOOM can be used to modify the viewing window of the current plot. The
zooming does not affect the plot, but only the way it is displayed.
- ZOOM X1 X2 Y1 Y2 Defines the viewing window by its corners
- ZOOM OFF Turns off zooming, i.e. defines the viewing window to be
the plot page
- ZOOM REFRESH Redraw the current plot (useful after CLEAR SEGMENT)
Without arguments ZOOM calls the cursor to define a new viewing window.
This new window will be defined by its center (at the cursor position)
and a zooming factor (by steps of 1.414) :
Z Increase the zooming factor
- Decrease it
B Display the viewing window boundaries
These commands do not produce effective zooming, press the space bar
to do it. Additional commands :
A Clear alphanumeric screen
0 Display the whole plot page (ZOOM OFF).
<Space> returns to previous zooming factor.
E Exits from the routine.
For X11 displays, you may use the mouse buttons for the commands Z (left
mouse button), <Space> (middle mouse button), and E (right mouse
button).
Option /NEW and /CURRENT can be used to specified whether the zoomed
area appears in the special zoom window (/NEW) or in the original window
(/CURRENT). Default behaviour is specified by CHANGE ZOOM NEW|CURRENT
command.