LPLOT

NAME

SYNOPSIS

DESCRIPTION

By default, plots are scaled to an 8 inch square plotting area, to be consistent in scale with other plot filters. Arguments are provided to change scaling in one or both directions, change the area into which the space() (see plot(3)) call maps user data, change the position of the plot on the page, or rotate the plot 90 degrees counter clockwise (useful primarily for printers loaded with 8 1/2 x 11 inch paper).

Lplot will accept the arguments passed by the Berkeley 4.2BSD printer spooler for accounting; thus it may be used in /etc/printcap as the "g" filter on such systems. No accounting is performed, of course, if these arguments are not given Arguments for pixel width and height are also recognized and used (within compiled-in limits).

If called as rlplot, the plot will be rotated 90 degrees counter-clockwise (-r flag) and the origin will be located at the lower right of the page.

If no file arguments are given, lplot reads from the standard input. If file arguments are given, an argument consisting of the single character '-' will be replaced by the standard input.

The P300 printer has a resolution of 60 dots per inch horizontally, 72 dots per inch vertically. The default 8 inch plot area is thus 480 dots x 576 dots. The maximum plot area is 780 dots x 792 dots (12 dots are unavailable when the print head is positioned at the first printable line).  

OPTIONS

-H x

limit the plot to x dots horizontally (maximum 792).

-W y

limit the plot to y dots vertically (maximum 780).

-s[xy] factor

set an overall scale factor. The plot is magnified by the scale factor (but may be truncated if the resulting plot area is larger than the page). If x or y is given, the scale factor will be applied in the indicated direction only.

-X num

move the plot right num inches (negative num moves left).

-Y num

move the plot up num inches (negative num moves down). char

-e

force an erase command between plot files

-N

suppress erase commands

-r

rotate the plot 90 degrees counter-clockwise

-d num

set debugging level to num (debugging is conditionally compiled; this may have no effect). The most useful setting is '1', which causes quickplot to print the plot(3) commands as it interprets them, with arguments scaled to final values. The plot is still generated.

-xnum

limit the plot to num dots horizontally (maximum 792). Included for compatibility with the 4.2BSD line printer spooler.

-ynum

limit the plot to num dots vertically (maximum 780). Included for compatibility with the 4.2BSD line printer spooler.

NOTE BENE

It is permissible to plot outside the 8 inch square, but data outside the page will be truncated (plotted at the maximum plot point).  

DIAGNOSTICS

SEE ALSO

AUTHOR

BUGS

Resolution is poor.

Lplot attempts to send minimum data to the printer, by sending bytes only up to the last byte in each row containing data; this accomplishes little, however, if the plot is boxed. (Plotting is slow.)

There is no way to rotate characters for vertical labeling.

Index

NAME

SYNOPSIS

DESCRIPTION

OPTIONS

NOTE BENE

DIAGNOSTICS

SEE ALSO

AUTHOR

BUGS