Graphics Control Functions; Programmable Graphics Functions - HP 262SA Reference Manual

Graphics
Graphics Control Functions
Table D-l. Graphics Control Keys
KEY DESCRIPTION
G.CURSOR
Toggles the graphics cursor on and off.
i~ Move the graphics cursor. More than one can be pressed for
~~
diagonal motion.
CURSOR FAST
Speeds up the graphics cursor if pressed in conjunction with
the cursor keys. The rate returns to normal when released.
G. DISPLAY
Toggles the graphics display to inhibit the graphics image
without erasing.
A. DSPLY
Toggles the alphanumeric display to inhibit the alphanumeric
image without erasing.
G.CLEAR
Erases the graphics image memory.
*G. COpy Copies graphics memory to the specified CCto" devices.
HUM PAD Toggles the function of the keypad between graphics and
numerics when. is pressed simultaneously.
•
Unshifted in numeric mode, the key is used to display a dash
(-) character.
*The G. COpy key causes an error message to appear ifno valid destination device is specified.
PROGRAMMABLE GRAPHICS FUNCTIONS
Graphics functions are controlled by parameterized escape sequences. All graphics escape
sequences begin with
Ec
it.
The third character, always lower case, selects the type of graphics
sequence. Table D-2 lists the types of graphics sequences. For example,
Ec
it
p specifies a
plotting sequence.
Subsequent characters in the control sequence are read as either parameters or commands,
depending on the location of the character in the ASCII table.
D-3