Matrix Orbital GLK240128-25 Legacy - Manual (Page 37)

Description A strip chart is an area of the screen reserved for horizontal scrolling.
This is normally used as follows:
• Initialize the strip chart, which reserves the appropriate area of the
screen.
• Draw a line segment at the right or left side of the strip chart.
• Shift the strip chart to the right or left.
• Draw the next line segment.
• Used this way the strip chart can produce a graph which scrolls
smoothly horizontally in either direction. With text the strip chart
can produce a marquis effect.
NOTE If the strip chart is used with text we recommend the use of a 6 or 7 pixel wide
fixed width character set, with each character placed 8 pixels from the start of the previous
one.
Up to 7 strip charts ([ref] = 0 - 6) may be defined. To initialize a strip
chart the user must define an area on the display in which to place the
strip chart.(x1,y1) is the top left corner of the area to be used, where
[x1] is the placement of the column where the strip chart is to begin and
[y1] is the row. The user must then define [x2] as the bottom right
column of the area to be utilized and [y2] as the bottom right row.
NOTE The definition of x must lie on byte boundaries. That is, x must be defined as
0x00, 0x08, 0x10, etc. This restriction does not apply to y values.
Remembered No
8.11 Shifting a Strip Chart
Syntax Hexadecimal 0xFE 0x6B [ref]
Decimal 254 107 [ref]
ASCII 254 “k” [ref]
Parameters Parameter Length Description
ref 1 Reference number of a strip chart
that has already been created.
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