Black Box Switch PQ-8S Manual de usuario descargar pdf (Pagina 111)

112

PQ-8P, PQ-8S

Comments—¬GX<'text'>

Allows text to be added to IOGL

commands for documentation.

Comments will not print out.

For example: ¬GX’Pie chart with 3

elements’ can be used to document

an IOGL pie chart command.

6.7 I-O Graphics Language

™

(IOGL)

in Action

6.7.1 G

ENERAL

TEPS

I-O Graphics Language

™

(IOGL) can

be used in many different ways. It

can enhance the appearance of

standard host reports through a few

simple graphical elements such as

lines, boxes, and circles; or it can

be used to present pertinent data

through charts. IOGL can even be

used to create sophisticated elec-

tronic forms. However, progra-

mming with IOGL follows the

ame general steps:

1. Determine which IOGL

elements are needed to create

the desired output. (For

example, the bar chart in Figure

6-19 uses four different IOGL

elements.)

2. Determine the printable area of

the page.

3. Determine the positioning of the

graphical elements relative to

the top left-hand corner of the

printable area.

4. PCL color printer only:

Determine the order in which

to print the graphical elements.

The lines of the last IOGL

element will overlap (and cover)

the previous IOGL elements.

5. Design the graphical output,

one element at a time.

6. Link the graphical output

with your host application.

6.7.2 T

UTORIAL

The following example (Figure

6-19) shows how multiple IOGL

elements interact to create a bar

chart.

1 2 ... 106 107 108 109 110 111 112 113 114 115 116 ... 167 168

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