Reference Guide

Full Command and Function Reference 3-101
Input/Output:
Level 2/Argument 1 Level 1/Argument 2 Level 1/Item 1
obj n
charsize
→
grob
Example: This program:
« 'Y=3*X^2' 0 →GROB PICT STO { } PVIEW »
returns a graphics object to the stack representing the Equation Writer application picture of
'Y=3*X^2', then stores the graphics object in PICT and shows it in the graphics display with
scrolling activated.
See also: →LCD, LCD→
GROB
Type: Command
Description: Enters GROB on the command line to help with the manual entry of a graphic object.
Access: …µ GROB
GROBADD
Type: Command
Description: Combines two graphic objects by appending the second argument onto the bottom of the first.
Access: P GRAPH GROBADD
!Ö GRAPH GROBADD ( Ö is the left-shift of the 4key).
Input/Output:
Level 2/Argument 1 Level 1/Argument 2 Level 1/Item 1
GROB
1
GROB
2
→
GROB
3
GXOR
Type: Command
Description: Graphics Exclusive OR Command: Superimposes grob
1
onto grob
target
or PICT, with the upper left
corner pixel of grob
1
positioned at the specified coordinate in grob
target
or PICT.
GXOR is used for creating cursors, for example, to make the cursor image appear dark on a light
background and light on a dark background. Executing GXOR again with the same image
restores the original picture.
GXOR uses a logical exclusive OR to determine the state of the pixels (on or off) in the
overlapping portion of the argument graphics objects.
Any portion of grob
1
that extends past grob
target
or PICT is truncated.
If the first (level 3) argument (the target graphics object) is any graphics object other than PICT,
then grob
result
is returned to the stack. If the first (level 3) argument is PICT, no result is returned to
the stack.
Access: !°L GROB GXOR ( °is the left-shift of the Nkey).
Input/Output:
Level 3/Argument 1 Level 2/Argument 2 Level 1/Argument 3 Level 1/Item 1
grob
target
{ #n
,
#m }
grob
1
→
grob
result
grob
target
(x, y)
grob
1
→
grob
result
PICT
{ #n
,
#m }
grob
1
→
PICT
(x, y)
grob
1
→
Example: This program:
« ERASE PICT NEG PICT { # 0d # 0d }