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EN Color Vector Graphics (HP-GL/2) 7-15
The “PC;” command defaults the colors of all pens as shown in the
table below. The “PC pen;” command defaults the number of pens as
shown in the table on the following page for an HP-GL/2 palette.
When color device palettes larger than 8 pens default, the first 8 pen
colors are as defined for a palette of 8; all remaining pen colors are
device- dependent. If the palette is a non-default palette, it defaults in
accordance with the default palettes in Chapter 4.
For black and white printers that accept color descriptions and
palettes, pen 0 defaults to white; all remaining pen colors default to
“equivalent gray levels.” An equivalent gray level means that lighter
colors (for example, yellow) are converted to light gray shades, and
darker colors (for example, purple) are converted to dark gray shades.
The mapping algorithm is device-dependent. However, equivalent
gray levels represent solid colors, and any white pixels within them
are not subject to transparency mode (TR).
No. of Pens in Palette Pen Number Color
2 (“NP 2;”) 0 White
1Black
4 (“NP 4;”) 0 White
1Black
2Red
3Green
8 (“NP 8;”) 0 White
1Black
2Red
3Green
4Yellow
5Blue
6 Magenta
7Cyan