XDVI

Section: Misc. Reference Manual Pages (SIPB)
Updated: 17 January 1989
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NAME

xdvi - DVI Previewer for the X Window System

SYNOPSIS

xdvi [+[page]] [-s shrink] [-S density] [-p pixels] [-l] [-rv] [-fg color] [-bg color] [-hl color] [-bd color] [-cr color] [-thorough] [-margins inches] [-sidemargin inches] [-topmargin inches] [-mgs[n] size] [-geometry geometry | =geometry] [%geometry] [-display display] file

DESCRIPTION

Xdvi is a program which runs under the X window system. It is used to preview DVI files, such as are produced by TeX.

This program has the capability of showing the file shrunken by various (integer) factors, and also has a ``magnifying glass'' which allows one to see a small part of the unshrunk image momentarily.

Also, before displaying any page or part thereof, it checks to see if the dvi file has changed since the last time it was displayed. If this is the case, then xdvi will reinitialize itself for the new dvi file. For this reason, exposing parts of the xdvi window while TeX is running should be avoided. This feature allows you to preview many versions of the same file while running xdvi only once.

OPTIONS

In addition to specifying the .dvi file (with or without the .dvi), Xdvi supports the following command line options. If the option begins with a `+' instead of a `-', the option is restored to its default value. By default, these options can be set via the resource names given in parentheses in the description of each option.

+page: Specifies the first page to show. If + is given without a number, the last page is assumed; the first page is the default.
-s shrink: (.shrinkFactor) Defines the initial shrink factor. The default value is 4.
-S density: (.densityPercent) Determines the density used when shrinking bitmaps for fonts. A higher value produces a lighter font. The default value is 40.
-p pixels: (.pixelsPerInch) Defines the size of the fonts to use, in pixels per inch. The default value is 300.
-l: (.listFonts) Causes the names of the fonts used to be listed.
-rv: (.reverseVideo) Causes the page to be displayed with white characters on a black background, instead of vice versa.
-bw width: (.borderWidth) Specifies the width of the border of the window.
-borderwidth width: Same as -bw, above.
-fg color: (.foreground) Determines the color of the text (foreground).
-foreground color: Same as -fg, above.
-bg color: (.background) Determines the color of the background.
-background color: Same as -bg, above.
-hl color: (.highlight) Determines the color of the page border.
-bd color: (.borderColor) Determines the color of the window border.
-cr color: (.cursorColor) Determines the color of the cursor. The default is the foreground color.
-thorough: (.thorough) Xdvi will usually try to ensure that overstrike characters (e.g. \notin) are printed correctly. On monochrome displays, this is always possible with one logical operation, either and or or. On color displays, however, this may take two operations, one to set the appropriate bits and one to clear other bits. If this is the case, then by default xdvi will instead use the copy operation, which does not handle overstriking correctly. The ``thorough'' option chooses the slower but more correct choice.
-margins inches: (.margins) Specifies the size of both the top margin and side margin. This can be a decimal number, e.g., 1.5. It determines the ``home'' position of the page within the window as follows. If the entire page fits in the window, then the margin settings are ignored. If, even after removing the margins from the left, right, top, and bottom, the page still cannot fit in the window, then the page is put in the window such that the top and left margins are hidden, and presumably the upper left-hand corner of the text on the page will be in the upper left-hand corner of the window. Otherwise, the text is centered in the window. See also `H' under the KEYSTROKES section.
-sidemargin inches: (.sideMargin) Specifies the side margin (see above).
-topmargin inches: (.topMargin) Specifies the top and bottom margins (see above).
-mgs[n] size: (.magnifierSize[n]) Specifies the size of the window to be used for the ``magnifying glass'' for Button n. See the MOUSE ACTIONS section. Defaults are 200, 350, 600, 900, and 1200.
-mgs size: Same as -mgs1, above.
=geometry: (*geometry) Specifies the initial geometry of the window.
-geometry geometry: Same as above.
#geometry: (.iconGeometry) Specifies the initial position for the icon.
-display host:display: Specifies the host and screen to be used for displaying the dvi file. This is normally obtained from the environment variable ``DISPLAY.''

KEYSTROKES

Xdvi recognizes the following keystrokes when typed in its window. Each may optionally be preceded by a (positive or negative) number, whose interpretation will depend on the particular keystroke.

q: Quits the program. Control-C and control-D will do this, too.
n: Moves to the next page (or to the nth next page if a number is given). Synonyms are `f', Space, Return, and Line Feed.
p: Moves to the previous page (or back n pages). Synonyms are `b', control-H, and Delete.
g: Moves to the page with the given number. Initially, the first page is assumed to be page number 1, but this can be changed with the `P' keystroke, below. If no page number is given, then it goes to the last page.
P: ``This is page number n.'' This can be used to make the `g' keystroke refer to actual page numbers instead of absolute page numbers.
Control-L: Redisplays the current page.
^: Move to the ``home'' position of the page. This is normally the upper left-hand corner of the page, depending on the margins as described in the -margins option, above.
u: Moves up a window-full.
d: Moves down a window-full.
l: Moves left a window-full.
r: Moves right a window-full.
c: Moves the page so that the point currently beneath the cursor is moved to the middle of the window. It also (gasp!) warps the cursor to the same place.
M: Sets the margins so that the point currently under the cursor is the upper left-hand corner of the text in the page.
s: Changes the shrink factor to the given number. If no number is given, the smallest factor that makes the entire page fit in the window will be used. (Margins are ignored in this computation.)
S: Sets the density factor to be used when shrinking bitmaps. This should be a number between 0 and 100; higher numbers produce lighter characters.
R: Forces the dvi file to be reread. This allows you to preview many versions of the same file while running xdvi only once.

MOUSE ACTIONS

If the shrink factor is set to any number other than one, then clicking any mouse button will pop up a ``magnifying glass'' which shows the unshrunk image in the vicinity of the mouse click. This subwindow disappears when the mouse button is released. Different mouse buttons produce different sized windows, as indicated by the -mgs option, above.

Also, the scrollbars (if present) behave in the standard way: pushing Button 2 in a scrollbar moves the top or left edge of the scrollbar to that point; pushing Button 1 moves the image up or right by an amount equal to the distance from the button press to the upper left-hand corner of the window; pushing Button 3 moves the image down or left by the same amount.

ENVIRONMENT

Uses the environment variable ``DISPLAY'' to specify which bit map display terminal to use.

The environment variable ``%%FONT_PATH%%'' determines the path(s) searched for fonts in the following manner. The string consists of one or more strings separated by colons. In each such string, the substring ``%f'' is changed to the font name; ``%d'' is changed to the magnification; and ``%p'' is changed to the font family (``gf'', ``pk'', or ``pxl''). If no ``%f'' appears in the string, then the string ``/%f.%d%p'' is added on the end. For example, if the string is ``/usr/local/tex/fonts'' and the font is cmr10 at 300dpi, then it searches for /usr/local/tex/fonts/cmr10.300gf, /usr/local/tex/fonts/cmr10.300pk, and /usr/local/tex/fonts/cmr10.1500pxl, in that order. If the first character of the ``%%FONT_PATH%%'' variable is a colon, then the system default paths are tried first.

FILES

%%DEFAULT_FONT_PATH%% Font pixel files.

AUTHORS

Eric Cooper, CMU, did a version for direct output to a QVSS. Modified for X by Bob Scheifler, MIT Laboratory for Computer Science. Modified for X11 by Mark Eichin, MIT SIPB. Additional enhancements by many others.

This document was created by man2html, using the manual pages.
Time: 06:10:02 GMT, December 12, 2024