Graphics Memory Control - HP 262SA Reference Manual

Dual-system display terminal and word-processing terminal
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Graphics
GRAPHICS CURSOR POSITIONING. The graphics cursor is initially at position (0,0) after
power on, full reset, graphics hard reset
(Ec *wr),
or graphics defaults reset
(Ec *mr).
You can
position the cursor (even ifit is not turned on) using either absolute or relative coordinates. In
the following sequences, X and Y give the new cursor position. Refer to Vectors for a discussion
of absolute and relative coordinates.
Position Graphics
Cursor Absolute:
Position Graphics
Cursor Relative:
Ec*d<X,Y>Q
Ec*d<X,V>p
You can position the graphics cursor with the graphics/numeric keypad by pressing
~, ~,
i, !.
Pressing two keys simultaneously causes diagonal movement. The
CURSOR FAST
key can be
pressed at the same time for high-.speed cursor positioning.
Examp 1e:
The cursor is currently at position 100,100 and off. Move it 50 units to the right and
20 units down from its current position and turn it on.
(Before)
ESC • d 50 -20pf
(After)
Graphics Memory Control
The graphics display can be turned on or offor the entire memory can be set to all ones (dots on)
or all zeros (dots oft).
GRAPHICS DISPLAY ON/OFF. The graphics display and graphics cursor can be turned on
or off: The data in the graphics memory is unaffected.
From the graphics/numeric keypad, pressing
G. DISPLAY
toggles the graphics display on and
off:
Programmatically:
Graphics Display On:
Graphics Display Off:
D-8
Ec*dd

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