Symbols are taken from the currently selected character set and are sized,
slanted and rotated in the same way as characters.
ScSPpe}lnumber [;]
This command selectsthe printer’s logical pen for subsequent plotting.
This command must be set in order to output.
PenOis white; it is used when no drawing is required orto draw white lines
on ablack fill, with transparency off.
Pen 1isblack; values greater than Iare treated as 1.
Sv cSV hpe [,optl [, opt2]]
Thiscommand selects thetypeofscreenin.g (areafill)to beapplied tovectors
(lines. hatching patterns (fill types 3and 4), arcs, circles, and edges of
polygons,rectangles, and wedges). This command does not affect solid fill
types, labels, stroked characters, or edges of characters.
There are three types of screen fill: shaded fill, user-defined raster fill, and
predefine cross-hatch patterns.
The meanings of and relation between parameters are as given in the
following table:
Type Meaning
ono screening
Ishaded
~user defined raster
(see RF)
21 predefine
opt 1opt2
ignored ignored
shadingpercentage, ignored
between O(white) and
100(black)
index;the pen for the O: blackpen,
black pixels is selected 1;current pen
as follows
fill type ignored
.Without parameters, thiscommand turns off screening.
Ifoprl and/or opt2ismissing, thepreviousand appropriatedefault valuesare
used.
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