Table of Contents
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Chapter 4: Graphing Features
1 PntON(
2 PntOFF(
3 PntCHG(
4 PxlON(
5 PxlOFF(
6 PxlCHG(
74
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.
PntOFF( x-coordinate, y-coordinate )
Erases a pixel point. It takes the X-Y coordinate as an
argument.
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.
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.
column
(0,
0)
row
(0,
62)
64
PxlOFF( column, row )
Erases a pixel point at a given screen location indi-
cated by column and row.
PxlCHG( column, row )
Changes the status (i.e., visible/invisible) of a pixel at a
given screen location indicated by column and row.
96
(94,
0)
(94,
62)
This area cannot be specified
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