Texas Instruments TI-89 Titanium Short User Manual page 229

PxlLine
CATALOG
rowStart
PxlLine
Displays the Graph screen and draws a line
between pixel coordinates (
(
rowEnd
If
drawMode
If
drawMode
If drawMode
off to on (inverts pixels along the line).
Note: Regraphing erases all drawn items. See
also
Line.
PxlOff
CATALOG
row col
PxlOff ,
rowList
PxlOff
Displays the Graph screen and turns off the pixel
at pixel coordinates (
Note: Regraphing erases all drawn items.
PxlOn
CATALOG
row col
PxlOn ,
rowList
PxlOn
Displays the Graph screen and turns on the pixel
at pixel coordinates (
Note: Regraphing erases all drawn items.
pxlTest()
CATALOG
row
pxlTest ( ,
rowList
pxlTest (
Returns
) is on. Returns
col
Note: Regraphing erases all drawn items.
PxlText
CATALOG
string
PxlText
Displays the Graph screen and places character
string
coordinates (
is positioned with the upper-left corner of
string
its first character at the coordinates.
Note: Regraphing erases all drawn items.
Appendix A: Functions and Instructions
colStart rowEnd colEnd
, , ,
rowStart
, ), including both endpoints.
colEnd
= 1, draws the line (default).
= 0, turns off the line.
= -1, turns a line that is on to off or
colList
,
, ).
row col
colList
,
, ).
row col
) ⇒
col Boolean expression
) ⇒
colList Boolean expression
,
if the pixel at pixel coordinates (
true
if the pixel is off.
false
row col
, ,
string on the screen, starting at pixel
,
).
row col
drawMode
[, ]
@
H
, ) and
colStart
¸
PxlHorz 25,1 ¸
PxlOff 25,50 ¸
25,50
PxlOn 25,50 ¸
PxlOn 25,50 ¸
@
H
,
row
PxlTest(25,50) ¸
PxlOff 25,50 ¸
@
H
PxlTest(25,50) ¸
@
text",20,10 ¸
H
text",20,50 ¸
PxlLine 50,15,20,90,1 ¸
PxlLine 80,20,30,150,1
"
¥ "
"
¥ "
PxlText "sample
PxlText "sample
true
false
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