7.11. - Where to put arguments when stringing commands together
You can combine several drawing commands on one command line, but
don't put spaces between the command characters.
Any character following
a space on the command line will be treated as an argument.
Annotate
and
drawkey ,
described in this chapter, and
select pen velocity,
described in the next, can all take arguments.
You must put the arguments after a single string of characters grouping
all the commands together.
For example,
pvaltnk vel an_hor an_ver an_file key_hor key_ver
will supply the pen velocity, the position and file for the annotation
and the position for the key.
First come the commands, then come the
arguments.
You have to insert place holders for arguments you don't want to supply.
The place-holder character is a
-. A single
- will hold the place of all the position arguments to a command (two
in 2D mode and three in 3D mode) for
annotate
and
draw key.
For instance,
pvaltnk vel - an_file key_hor key_ver
will instruct the annotation command to act as it does when it is
entered without position arguments.
You only need place holders if you have to put arguments past the
place holders.
For example, if you just want to set the pen velocity
and supply the position for the annotation, you can enter
pvaltnk vel an_horz an_vert
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