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Chapter 4: Graphing Features
1 PntON(
PntON(
x-coordinate, y-coordinate)
Draws a point at a given coordinate. It takes the X-Y
coordinate as an argument.
This tool can either be accessed from the GRAPH
window or other windows. Entering from the GRAPH
window enables a graphic entry, while entering from
other windows enables text-based entry.
2 PntOFF(
PntOFF(
x-coordinate, y-coordinate)
Erases a pixel point. It takes the X-Y coordinate as an
argument.
3 PntCHG(
PntCHG(
x-coordinate, y-coordinate)
Changes the status (i.e., visible/invisible) of a pixel at a
given coordinate. Deletes the point when it is displayed
and draws the point when it is not displayed.
4 PxlON(
PxlON(
column, row)
Draws a pixel point at a given screen location indicated
by column and row.
The column and row definitions are as follows:
Column: 0 to 94,
Row: 0 to 64.
(
0, 0
)
(94
, 0
)
(
0, 62
)
(94
, 62
)
column
96
This area cannot be specified
64
row
5 PxlOFF(
PxlOFF(
column, row)
Erases a pixel point at a given screen location indi-
cated by column and row.
6 PxlCHG(
PxlCHG(
column, row)
Changes the status (i.e., visible/invisible) of a pixel at a
given screen location indicated by column and row.