HP 5961-0509 manual Omitting Optional Parameters, LT6,25,1

Note

Notes

Remember that while X,Y coordinates are shown in parentheses in text [for example (3,4) or (0,0)], the parentheses are not part of the syntax. Do not enter these parentheses in your commands.

;

iCommand terminator. In most HP-GL/2 commands, a semicolon is optional, and is shown in parentheses in most command syntax.

Three exceptions to the optional use of the semicolon as a command terminator occur in the following commands: Polyline Encoded (PE), Label (LB), and Comment (CO).

PE must be terminated by a semicolon. LB is terminated by the non- printing end-of-text character (ETX - decimal 3), or a user-defined character. The comment string of the CO command must be delimited by double quotes.

A semicolon terminator is always required following the last command prior to leaving HP-GL/2 mode.

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A comma is always shown as the separator between parameters. A space, +, or - is also valid (although not preferred). (A + or - is a valid separator only for numeric parameters.)

Omitting Optional Parameters

Some commands have optional parameters that take on default values if they are omitted. When you omit a parameter, you must omit all subsequent parameters in the same command (the Define Label Terminator (DT) command is an exception).

For example, the Line Type (LT) command has three optional parameters: type, pattern length, and mode. The following command shows all three being used (type = 6, pattern length = 25, mode = 1).

LT6,25,1

EN HP-GL/2 Commands and Syntax 17-9