WaveWare Adaptive AlphaNet - Manual (Page 143)

Appendix E — Understanding message line positions (Top, Middle, Bottom, Fill)
5 — Appendix 143
blank rows on the bottom. All text and objects are then lined up to this
new virtual bottom (the 13
th
line) and treated the same as in a single-line
sign.
Exception conditions:
• If the sign receives a font that is larger than the sign can display, it
will size it down. On this sign, in the middle position, the only
characters that are too large are characters using the double-high
control code. This control code is ignored.
• If a graphic is received that is taller than the display can show, the top
sixteen rows are displayed.
• If a graphic is received that is wider than the display can show, it will
show the left-most columns of the picture.
• If a character set is not established in the message, 16-high normal
characters are used.
Fill position
On a 4000 series sign, the Fill position indicates that you want to
use no more than 7-high characters and that you want to fit as much text
on the screen as you can. When in this mode, the sign views itself as
having two lines of 7-high characters and no means of handling a
character set larger than 7-high. If a graphic is selected, at most seven
rows of that graphic will be displayed. If the last piece of text to be
displayed (towards the end of the message) is only one line of text, the
sign will place 4 blank rows of dots at the top and the bottom of the text in
order to center the last line of text vertically.
If the sign is operating on the top row, the bottom of that row is
assumed to be the 7
th
row of dots. All text is started from there and
worked up. (5-row characters will use rows 3 – 7, while 7-row characters
will use rows 1 – 7.)
If the sign is operating on the bottom row, it works its way up from
row 16. (5-row characters will use rows 12 – 16, while 7-row characters
will use rows 10 – 16.)
Exception conditions:
• If the sign receives top, bottom, or fill modes and also a font that is
larger than 7-high, it will size it down. 7-high normal characters are
substituted for any 15-high normal characters. 7-high fancy
characters are substituted for any 15-high fancy characters received,
and so on.
• If a graphic is received that is taller than 7 rows high (15-high for the
Middle position), the top 7 rows (top 15 for the Middle position) are
displayed.
• If a graphic is received that is longer than the display can show, it will
show the left-most columns of the picture.
• If a character set is not established in the message, 7-high normal
characters are used.