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Display Memory Functions
Once a field has been defined as from the alternate set the
field moves with the display. To change to a different
alternate character set another ESC )
<
set> sequence
must be sent.
Once a field in display memory has been defined as an
alternate character field, it will continue to display
alternate characters whenever data is written in the field
until the terminal is reset.
The Math Set is useful for applications requiring the use
of equations or formulas. The elements of the optional
Math Symbol Set are shown in figure 2-8. An example of
the use of the Math Set is shown in figure 2-6.
The Large Character set allows you to create alphabetic
characters that are three times the size of normal
characters. The elements of the Large Character set are
shown in figure 2-9. An example of how to use the Large
Character Set to build the character "B" is shown in figure
2-7. Table B-16 in Appendix B shows the keys required to
build each character. Appendix A gives a program to build
each character.
CJ
I
[]
Q
G)
[)
8
0
•
•
Figure 2-7. Example Using the Large Character Set
Figure 2-6. Example Using the Math Set
2-10
The Line Drawing Set provides a limited graphics
capability. Simple line drawings and fairly complex forms
for data entry applications can be generated. The elements
of the optional Line Drawing Set are shown in figure 2-10.
Figure 2-11 shows how the line drawing set can be used to
build a data entry form.
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