Matrix-orbital GLK19264-7T-1U Manual de usuario descargar pdf (Pagina 38)

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.

Matrix Orbital GLK19264-7T-1U 33

1 2 ... 33 34 35 36 37 38 39 40 41 42 43 ... 70 71

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Matrix-orbital GLK19264-7T-1U Manual de usuario Pagina 38