HP 7470A Interfacing And Programming Manual page 20
Graphics plotter
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Also See for 7470A:
- Operator's manual (41 pages) ,
- Interfacing and programming manual (114 pages) ,
- Service manual (141 pages)
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2. Decimal Format — a number between —128.0000 and 1279999 with
an optional decimal point and decimal fraction with up to four
significant digits. If no sign is specified, the parameter is assumed to
be positive.
3. Label Fields — any combination of text, numeric expressions, or
string variables. Refer to The Label Instruction, LB, Chapter 5, for a
complete description.
Some instructions such as PA, PR, PU, and PD may have multiple
parameters. Separators are required between these parameters. These
optional parameters are shown in parentheses in the syntax descriptions.
The syntax shown under the description of each HP-GL instruction
uses the following notations:
MNemonic
necessary parameter
(
)
C....C
(,.-)
terminator
(terminator)
For readability, the mnemonic is shown upper
case and separated from the parameters and/ or
terminator.
All typeset items are required parameters.
All items in parentheses are optional.
Any number of labeling characters.
Any number of X,Ycoordinate pairs.
; or any nonnumeric or nonalphabetic character
such as $ or #, or the next mnemonic. LF is also
valid for HP—IBand HP—ILplotters.
Terminator for an instruction which will execute
after the last necessary parameter is received.
The following table shows the 7470'sHP-GL instruction set.
Plotter Instruction Set
Instruction
Description
AA
X,Y, arc angle (, chord angle)
Arc absolute*
AR
X,Y, arc angle (, chord angle)
Arc re1ative*
CA
11
Designate alternate set 11
CI
radius (, chord angle)
Circle*
CP
spaces, lines
Character plot
CS
m
Designate standard set In
DC
Digitize clear
DF
Set default values
1-8 GETTING STARTED
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