HP 262SA - Graphics Control Functions; Programmable Graphics Functions

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 messageto 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 lowercase, 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