User's Manual

Chapter 6: Tekterm Application
Scan-See Sub-Menu – Mapping The Viewport
240 Psion Teklogix 7535 Hand-Held Computer User Manual
The Scan-See display is mapped to a specific area on the 7535 screen – called
the viewport – and is continuously updated to reflect that portion of the screen. The
Scan-See viewport is defined as follows:
Anchor Line/ Anchor Column
A location on the Scan-See display – the anchor – is chosen as a reference point.
Line Offset/ Column Offset
A predefined displacement – the offset – is added to the location of the 7535 cursor
to create a point – the pivot . This pivot is mapped to the anchor , and whatever is
displayed in its vicinity is also displayed on the Scan-See.
For example:
• the anchor is chosen as (9,0) whereas “9” is the column and “0” is the line
(on the Scan-See display)
• the offset is chosen as (4,2)
• the cursor on the 7535 is currently located at (7,5)
• the pivot would thus be located at (7+4, 5+2) or (11,7)
• and so the area displayed on the Scan-See will be:
(11–9,7–0) to (11–9+9,7–0+1) or (2,7) to (11,8).
1
1
These computations assume that “Wraparound” (described on page 242) is disabled
(set to “N”) and that “Follow Cursor” (described on page 242) is enabled (set to “Y”).