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This page covers notes for PrintGL 1.20 that are not included in the
1.18 manual.
The O suboption of /L sets pen overwrite mode. This causes PrintGL
to draw with opaque lines instead of oring lines into the print.
Color PostScript is supported. Color and shading parameters are
mapped into RGB color levels. PostScript overwrites as it draws, so
overlapping lines appear as if /LO was used. The HP-GL drawing order
is preserved.
PMI looks for the environment variable PRINTGLP, and if found, uses
it as the DOS PATH.
The Mannesmann Tally MT92C color DeskJet compatible printer is
supported. Use /FA (300 dpi), /FA- (150 dpi), /FA~ (300 dpi black
only), or /FA~- (150 dpi black only).
There is a 360x364, four pass driver for the Proprinter X24 - /F6*.
This will not work with most X24 compatibles because it uses 1/144
inch indexing to do odd 1/360 inch indexing (2/144 = 3/216 = 5/360).
Font enhancement is invoked with /ZE. This improves character curve
smoothness.
Proportional fonts are now kerned, and do not match the width table
in the 1.18 manual. Instead of documenting a width and kerning
table, the HP-GL LO command is supported.
LO [ position_number ]
label origin (7550 extension)
LO sets the label origin. For positions 4..9 and 14..19 the
label buffer is limited to 150 characters. The default is 1.
13 16 19
3..... ....... ...6... ....... ......9
. . . . . . . . . .
12 2 . . . . 5 . . . . 8 18
. . . . . . . . . .
1..... ....... ...4... ....... ......7
11 14 17
The HP-GL ES command is supported.
ES [ space [, line]]
extra space (7550 extension)
ES adds to the space between characters and lines. The units are
in character cells (1.5*width, 2*height). The allowed range is
-1 to 1. -.3333 causes characters to touch.
The HP-GL commands PM1 and PM2 now close the current subpolygon with
the current pen up/down state.