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 xodometer(1)                                                   xodometer(1)
                                Mar 15, 1993



 NAME
      xodometer

 SYNOPSIS
      xodo [ -disci -d -dwm -dhm -dwp -dhp -psf -bd -bg -fg -fn -fn2 -g -i
      -mit -o -of -oat -t]

 DESCRIPTION
      Track the total distance your pointing device and cursor travel.  The
      distance can be displayed in various units.

      xodometer displays total distance and "trip" distance since the
      application started (or since you clicked on a trip reset button).

      xodometer requires certain information to ensure accurate distance
      tracking.  Refer to the following sections to learn about calibrating
      xodometer, and to view a list of tested configurations.

      xodometer is typically started from the .xinitrc file.  Use the left
      button for selections.  Use the middle button to reset both trip
      odometers simultaneously.

      Every xodometer command line parameter can have an application
      resource in the xrdb database or .Xdefaults file.  A resource follows
      this convention:

        xodo.parameter_name : parameter_value

      Therefore to specify xodometer's default font the following resource
      entry could be specified:

        xodo.fontname : Rom8

      For further help try xodo -full_help.

      Examples:

        xodo -bd red -bg wheat1 -fg blue -g -0-0

        xodo -fn rom6 -o cursor -dwm 300 -dhm 234



 CALIBRATION
      xodometer requires the display dimensions in both pixels and
      millimeters in order to correctly compute distances.  Look for this
      information in the appropriate hardware reference manual for your
      display.  If you cannot find this information it's still easy to
      determine.  For the display dimensions in pixels simply run xodometer,
      jam the cursor in the bottom-right corner and note the X/Y coordinates
      displayed at the bottom of the window - add one to get the actual



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 xodometer(1)                                                   xodometer(1)
                                Mar 15, 1993



      pixel count.  For the display dimensions in millimeters just grab a
      tape measure and measure your screen - if inches multiply by 25.4 and
      if centimeters multiply by 10.  Select "About" and   verify that
      xodometer is calibrated properly by using a ruler to measure the
      calibration scale.  The default values for these dimensions are
      suitable for an IBM RS/6000 machine with a 6091 19" color monitor.
      Refer to the next section for values of other tested configurations.

      Assuming that the display dimension data is correct the cursor
      distance can be accurately tracked.  The actual distance that your
      pointing device, typically a mouse, travels is INFERRED by accleration
      information provided by the X server and pointer scaling information
      that you must provide.  The default scale factor is 3.4, meaning that
      the cursor travels 3.4 times as far as the pointing device moves. This
      value is appropriate for an IBM RS/6000 machine with a 6091 19" color
      monitor.  Refer to the next section for values of other tested
      configurations.

      If you cannot find the correct scale factor for your mouse then you
      must determine it by measuring.  It is rather easy to do this:  first
      enter "xset m 1 1" to set the X threshold and  acceleration to 1, then
      enter "xodo -psf 1.0" to set xodometer's pointer scale factor also to
      1.  Once xodo is running pull-down the Units menu and select "inches".
      Then, using a ruler, place the pointing device against one edge, click
      the second button to reset the trip odometers, and then trace a known
      distance, say, one inch.  The distance recorded by the pointer's trip
      odometer is the proper scaling factor.  Repeat the measurement several
      times for accuracy.

      At the bottom of the xodometer window is a status line that displays
      the current distance Units and the X/Y cordinates of the cursor.  In
      the "About" window the pointer   Scale factor, and the X Threshold and
      Acceleration are displayed.

      All the calibration information you supply is either passed on the
      command line, stored in environment variables, or placed in your
      .Xdefaults file.  The applicable environment variables are:

        D_XODO_DWM   display_width_millimeters
        D_XODO_DHM   display_height_millimeters
        D_XODO_DWP   display_width_pixels
        D_XODO_DHP   display_height_pixels
        D_XODO_PSF   pointer_scale_factor



 TESTED CONFIGURATIONS
      For each machine, Operating System/window manager and display
      configuration, a sample xodometer command line is given:

      - IBM RS/6000, AIX 3.2.3/mwm, 16" color



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 xodometer(1)                                                   xodometer(1)
                                Mar 15, 1993



        xodo -dwm 300 -dhm 234 -dwp 1280 -dhp 1024 -psf 3.0

      - IBM RS/6000, AIX 3.2.3/mwm, 19" color
        xodo -dwm 350 -dhm 274 -dwp 1280 -dhp 1024 -psf 3.4

      - IBM RS/6000, AIX 3.2.3/mwm, 23" color
        xodo -dwm 430 -dhm 340 -dwp 1280 -dhp 1024 -psf 4.0

      - Sun SPARC 1+, SunOS 4.1.1/twm, 17" monochrome
        xodo -dwm 292 -dhm 232 -dwp 1152 -dhp  900 -psf 2.0

      - Sun SPARC 1+, SunOS 4.1.1/twm, 19" color
        xodo -dwm 358 -dhm 274 -dwp 1152 -dhp  900 -psf 4.0


 OPTIONS
      -help, disci: Display Command Information


        Indicates display brief help information, which includes
        a command description with examples, plus a synopsis of
        the command line parameters.  If you specify -full_help
        rather than -help complete parameter help is displayed
        if it's available.


      -display, d: string = DISPLAY, ""


        The X display name; default is the DISPLAY variable.


      -display_width_millimeters, dwm: integer = D_XODO_DWM, 350


        The width in millimeters of the X display.  The default
        is 350 mm (an IBM 6091 19" color monitor).


      -display_height_millimeters, dhm: integer = D_XODO_DHM, 274


        The height in millimeters of the X display.  The default
        is 274 mm (an IBM 6091 19" color monitor).


      -display_width_pixels, dwp: integer = D_XODO_DWP, 1280


        The width of the X display in pixels.  The default
        is 1280 pixels (an IBM 6091 19" color monitor).



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 xodometer(1)                                                   xodometer(1)
                                Mar 15, 1993



      -display_height_pixels, dhp: integer = D_XODO_DHP, 1024


        The height of the X display in pixels.  The default
        is 1024 pixels (an IBM 6091 19" color monitor).


      -pointer_scale_factor, psf: real = D_XODO_PSF, 3.4


        The scale factor to convert pointer movement to cursor
        movement.  A scale factor of 2.0 means that for every D
        units of distance the pointing device moves, the cursor
        moves 2 * D units.  The default is 3.4, suitable for an
        IBM 6091 19" color monitor.


      -border, bd: name = Black


        xodometer's border color.


      -background, bg: name = White


        xodometer's background color.


      -foreground, fg: name = Black


        xodometer's foreground color.


      -fontname, fn: string = "9x15"


        xodometer's odometer font.  An extremely small font
        is "rom6" while a rather large font is "helvr30".


      -fontname2, fn2: string = "6x10"


        xodometer's button font.  In general you should NOT
        change this font since the action buttons do not
        change size.  Another suitable font is "Rom8", but
        that is not available on all X servers.





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 xodometer(1)                                                   xodometer(1)
                                Mar 15, 1993



      -geometry, g: string = "<width>x<height>{+-}<xoffset>{+-}<yoffset>"


        Specifies the X geometry in the standard notation.
        The width and height are not normally specified since
        xodometer calculates them based on the fontname.  If
        an "offset" value is positive it is measured from the
        top or left edge of the display, and if negative it is
        measured from the bottom or right edge of the screen.
        So, to start xodometer in the bottom-right corner a
        geometry string of "-0-0" would be specified.


      -iconic, i: switch


        If specified xodometer starts up already iconified.


      -microsecond_interval_time, mit: integer = 100000


        The number of microseconds between odometer updates.  The
        default value of 100,000 means that the pointer position
        is sampled 10 times per second, which seems to provide
        accurate distance measurements without consuming
        excessive amounts of your machine's resources.


      -odometer, o: key cursor, pointer, both, keyend = both


        A keyword that specifies whether to display both
        odometers, or just one of them, and if just one,
        which one.


      -odometer_file, of: file = $HOME/.xodo


        The path name of the file to record total mouse distance
        (in millimeters) and other application information.  This
        file is read during xodometer startup to initialize the
        distance totals and establish the distance units.  When
        you "Quit" xodometer the updated distance/unit data is
        written to this file.


      -odometer_autosave_time, oat: integer = 2





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 xodometer(1)                                                   xodometer(1)
                                Mar 15, 1993



        Specifies the time interval in minutes between odometer
        file updates.  This is just for good luck, as xodometer
        updates the odometer file when these event are received:

          - control/c
          - window close
          - window manager exit


      -title, t: string = "xodo"


        The xodometer window title line.



 AUTHOR
      Stephen O. Lidie, lusol@Lehigh.EDU

      Copyright (C) 1993 - 1993, Lehigh University.  All rights reserved.


































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