tek2plot command-line options

The tek2plot program translates the Tektronix graphics files produced by many older applications to other formats. The output format or display type is specified with the `-T' option. The possible output formats are the same ten formats that are supported by the GNU graph, plot, and pic2plot programs.

Input file names may be specified anywhere on the command line. That is, the relative order of file names and command-line options does not matter. If no file names are specified, or the file name `-' is specified, the standard input is read. The output file is written to standard output, unless the `-T X' option is specified. In that case the output is displayed in one or more windows on an X Window System display, and there is no output file.

The full set of command-line options is listed below. There are three sorts of option:

1. General options.
2. Options relevant only to raw tek2plot, i.e., relevant only if no display type or output format is specified with the `-T' option.
3. Options requesting information (e.g., `--help').

Each option that takes an argument is followed, in parentheses, by the type and default value of the argument.

The following are general options.

`-T type'

`--display-type type'

(String, default "meta".) Select a display type or output format of type type, which may be one of the strings "X", "pnm", "gif", "ai", "ps", "fig", "pcl", "hpgl", "tek", and "meta". These refer respectively to the X Window System, portable anymap (PBM/PGM/PPM) format, pseudo-GIF format, the format used by Adobe Illustrator, idraw-editable Postscript, the format used by the xfig drawing editor, the Hewlett--Packard PCL 5 printer language, the Hewlett--Packard Graphics Language (by default, HP-GL/2), Tektronix format, and device-independent GNU graphics metafile format.

`-p n'

`--page-number n'

(Nonnegative integer.) Display only page number n, within the Tektronix file or sequence of Tektronix files that is being translated. Tektronix files may consist of one or more pages, numbered beginning with zero. The default behavior, if the `-p' option is not used, is to display all nonempty pages in succession. For example, tek2plot -T X displays each page in its own X window. If the `-T pnm' option, the `-T gif' option, the `-T ai' option, or the `-T fig' option is used, the default behavior is to display only the first page, since files in PNM, pseudo-GIF, AI, or Fig format may contain only a single page of graphics. Most Tektronix files consist of either one page (page #0) or two pages (an empty page #0, and page #1). Tektronix files produced by the GNU plotting utilities (e.g., by graph -T tek) are normally of the latter sort.

`-F font_name'

`--font-name font_name'

(String, default "Courier" except for tek2plot -T pnm, tek2plot -T gif, tek2plot -T pcl, tek2plot -T hpgl, and raw tek2plot, for all of which "HersheySerif" is the default.) Set the font used for text to font_name. Font names are case-insensitive. If a font outside the Courier family is chosen, the `--position-chars' option (see below) should probably be used. For a list of all fonts, see section Available text fonts. If the specified font is not available, the default font will be used.

`-W line_width'

`--line-width line_width'

(Float, default -1.0.) Set the thickness of lines, as a fraction of the size (i.e., minimum dimension) of the graphics display, to line_width. A negative value means that the default value provided by the libplot graphics library should be used. This is usually 1/850 times the size of the display, although if `-T X', `-T pnm', or -T gif is specified, it is zero. By convention, a zero-thickness line is the thinnest line that can be drawn. This is the case in all output formats. Note, however, that the drawing editors idraw and xfig treat zero-thickness lines as invisible. tek2plot -T hpgl does not support drawing lines with other than a default thickness if the environment variable HPGL_VERSION is set to a value less than "2" (the default).

`--bg-color name'

(String, default "white".) Set the color used for the background to be name. This is relevant only to tek2plot -T X, tek2plot -T pnm, and tek2plot -T gif. An unrecognized name sets the color to the default. For information on what names are recognized, see section Specifying Colors by Name. The environment variable BG_COLOR can equally well be used to specify the background color. If the `-T gif' option is used, a transparent pseudo-GIF may be produced by setting the TRANSPARENT_COLOR environment variable to the name of the background color. See section Environment variables.

`--bitmap-size bitmap_size'

(String, default "570x570".) Set the size of the graphics display in which the plot will be drawn, in terms of pixels, to be bitmap_size. This is relevant only to tek2plot -T X, tek2plot -T pnm, and tek2plot -T gif, for which the graphics display size can be expressed in terms of pixels. The environment variable BITMAPSIZE can equally well be used to specify the size. The graphics display used by tek2plot -T X is an X window. If you choose a rectangular (non-square) window size, the fonts in the plot will be scaled anisotropically, i.e., by different factors in the horizontal and vertical direction. This requires an X11R6 display. Any font that cannot be scaled in this way will be replaced by a default scalable font, such as the Hershey vector font "HersheySerif". For backward compatibility, the X resource Xplot.geometry, which can be set by the user, may be used to set the window size, instead of `--bitmap-size' or BITMAPSIZE.

`--max-line-length max_line_length'

(Integer, default 500.) Set the maximum number of points that a polygonal line may contain, before it is flushed to the display device, to equal max_line_length. If this flushing occurs, the polygonal line will be split into two or more sub-lines, though the splitting should not be noticeable. The reason for splitting long polygonal lines is that some display devices (e.g., old Postscript printers and HP-GL pen plotters) have limited buffer sizes. The environment variable MAX_LINE_LENGTH can also be used to specify the maximum line length. This option has no effect on raw tek2plot, since it draws polylines in real time and has no buffer limitations.

`--page-size pagesize'

(String, default "letter".) Set the size of the page on which the plot will be positioned. This is relevant only to tek2plot -T ai, tek2plot -T ps, tek2plot -T fig, tek2plot -T pcl, and tek2plot -T hpgl. "letter" means an 8.5in by 11in page. Any ISO page size in the range "a0"..."a4" or ANSI page size in the range "a"..."e" may be specified ("letter" is an alias for "a" and "tabloid" is an alias for "b"). "legal", "ledger", and "b5" are recognized page sizes also. The environment variable PAGESIZE can equally well be used to specify the page size. For tek2plot -T ai and tek2plot -T ps, the graphics display within which the plot is drawn will be a square region centered on the specified page, occupying its full width (with allowance being made for margins). For tek2plot -T fig, it will be a square region of the same size, located in the upper left corner of an xfig display. For tek2plot -T pcl and tek2plot -T hpgl, the graphics display will be a square region of the same size, but may be positioned differently. Fine control its positioning on the page can be accomplished by setting certain environment variables (see section Environment variables).

`--pen-color name'

(String, default "black".) Set the pen color to be name. An unrecognized name sets the pen color to the default. For information on what color names are recognized, see section Specifying Colors by Name.

`--position-chars'

Position the characters in each text string individually on the display. If the text font is not a member of the Courier family, and especially if it is not a fixed-width font, this option is recommended. It will improve the appearance of text strings, at the price of making it difficult to edit the output file with xfig or idraw.

`--rotation angle'

(Integer, default 0.) Set the rotation angle of the plot within the graphics display to be angle degrees. Recognized values are 0, 90, 180, and 270. The rotation is counterclockwise. This option is used for switching between portrait mode and landscape mode. Postmodernists may also find it useful.

`--use-tek-fonts'

Use the bitmap fonts that were used on the original Tektronix 4010/4014 terminal. This option is relevant only to tek2plot -T X. The four relevant bitmap fonts are distributed with most versions of the plotting utilities package, under the names tekfont0...tekfont3. They may easily be installed on any modern X Window System display. For this option to work properly, you must also select a window size of 1024x1024 pixels, either by using the --bitmap-size 1024x1024 option or by setting the value of the Xplot.geometry resource. The reason for this restriction is that bitmap fonts, unlike the scalable fonts that the plotting utilities normally use, cannot be rescaled. This option is useful only if you have a file in Tektronix format that draws text using native Tektronix fonts. Tektronix files produced by the GNU plotting utilities (e.g., by graph -T tek) do not use native Tektronix fonts to draw text.

The following option is relevant only to raw tek2plot, i.e., relevant only if no display type or output format is specified with the `-T' option. In this case tek2plot outputs a graphics metafile, which may be translated to other formats by invoking plot.

`-O'

`--portable-output'

Output the portable (human-readable) version of GNU metafile format, rather than a binary version (the default). This can also be requested by setting the environment variable META_PORTABLE to "yes".

The following options request information.

`--help'

Print a list of command-line options, and then exit.

`--help-fonts'

Print a table of available fonts, and then exit. The table will depend on which display type or output format is specified with the `-T' option. tek2plot -T X, tek2plot -T ai, tek2plot -T ps, and tek2plot -T fig each support the 35 standard Postscript fonts. tek2plot -T ai, tek2plot -T pcl, and tek2plot -T hpgl support the 45 standard PCL 5 fonts, and tek2plot -T pcl and tek2plot -T hpgl support a number of Hewlett--Packard vector fonts. All of the preceding, together with tek2plot -T pnm, tek2plot -T gif, and tek2plot -T tek, support a set of 22 Hershey vector fonts. Raw tek2plot in principle supports any of these fonts, since its output must be translated to other formats with plot. The plotfont utility will produce a character map of any available font. See section The plotfont Utility.

`--list-fonts'

Like `--help-fonts', but lists the fonts in a single column to facilitate piping to other programs. If no display type or output format is specified with the `-T' option, the full set of supported fonts is listed.

`--version'

Print the version number of tek2plot and the plotting utilities package, and exit.

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