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NAME pv - select pen velocity
SYNOPSIS pv
[velocity]
DESCRIPTION The pv command controls
the drawing speed on the pen plotter. The quality of the lines
on the pen plotter depends on the drawing speed and acceleration
of the pen. You may sometimes want to draw plots
quickly, at the expense of well-inked lines, or you may want to
slow the pen to improve the quality of the lines.
With no parameters, pv prints the current pen
velocity and prompts for a new value. Any positive
values entered are passed directly to the plotter. A
negative parameter selects the plotter's default value, which is
likely to be the maximum velocity and acceleration available.
Different pen plotters models have different maximum pen
velocities. The program indicates the velocity you select, even
if it is greater than the maximum the plotter allows.
C-PLOT's default pen velocity is 10 cm/sec.
The maximum velocities available for a number of HP plotter
models are shown below.
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