THIS 22.1
Global Commands and Pages

Global Commands and Pages

The following commands are to be found as buttons on the GLOBAL MENU panel. (The command line codes are given in parentheses.)

All of the commands in the GLOBAL MENU can also be accessed via the PLOTTING button at the top of the graphics window.

Page Number

If T/HIS contains more than one graph ( see Creating Graphs ) then the graphs can be positioned on separate Pages within T/HIS. This menu can be used to select a specific page or it can be used to step through the pages one by one.

XXXXXXXXXXXXXXX
XXXXXXXXXXXXXXX Shortcut Key
Goto Page 1 Home
Go back 1 Page Page Up
Goto Page (n) N/A
Go back 1 Page Page Down
Goto Page 32 End

PLOT (PL) 

This option will plot all the curves that are currently UNBLANKED (see Curve Manager ).

POINT (PT) 

When selected this option waits for the user to pick a point in the main graphics screen.

Once a point has been picked the <x> and <y> values of the point picked are reported along with the ID of the nearest curve and the nearest point on that curve.

After a point has been selected on the screen the slider may be used to move to other points along the same curve.


CLEAR (CL) 

Clears the graphics screen.

ZOOM (ZM) 

The cursor appears on the screen and may be used to select the required plot area by choosing opposite corners of a box. The graphs are then replotted. Using ZOOM implicitly turns autoscaling off.

AUTOSCALE (AU) 

Autoscales the plot size for all current unblanked curves in the graphics window and re-displays the plot.

CENTRE (CE) 

Pick a point on the screen using the cursor to be the new plot centre. It affects the x/y offsets but not the scales.

MANUAL

Displays the online (HTML) version of the manual

STOP

Some operations, like reading a file containing many curves in to T/HIS, can take a long time. This button can be used to stop some long opertaions without having to exit from T/HIS.

TIDY

This option can be used to reset the menu layout to the default settings.

Additional Commands

A number of additional global commands exist in command line mode. These functions exist in screen menu mode within other menu levels.

(PF) Creates a postscript plot file. Either A4 landscape or A4 portrait formats may be chosen. A title and figure number are also requested. Other plot setting may be made in the command line mode UTILITIES menu.
(BL) Blank a currently displayed curve.
(UB) Unblank a curve that has been blanked.
(RM) Remove (delete) a curve. Once a curve has been removed it is lost from the system.
(ER) Erase (delete) all existing curves from T/HIS. (Equivalent to the command RM *. )
(GS) Global status: displays the current number of curves, their labels and whether they are blanked.
(CO) Condense: renumbers all curves to fill any gaps in curve numbers.
(LM) Gives the current program limits.
(FT) File tracking: lists the 20 files which have been accessed most recently by T/HIS, giving details of the type of file and whether it was read from or written to.
(EX) Exits (leaves) the program.