nutmeg.1

spice中支持多层次元件模型仿真的可单独运行的插件源码

Change the type of the named vectors to \fBtype\fR.  Type names can
be found in the manual page for \fBsconvert\fR.
.TP
\fBdiff plot1 plot2 [vec ...]\fR
Compare all the vectors in the specified \fIplots\fR, or only the named
vectors if any are given. There are different vectors in the two plots,
or any values in the vectors differ significantly the difference is
reported. The variables \fBabstol, reltol,\fR and \fBvntol\fR are used
to determine what "significantly" means (see the \s-2SPICE\s+2\&3 User's
Manual).
.TP
.B quit
Quit nutmeg.
.TP
.B bug
Send a bug report. (If you have defined BUGADDR, the mail will go there.)
.TP
\fBwrite [file] [exprs]\fR
Writes out the expr's to
.B file.
First vectors are grouped together by plots, and written out as such.
(I.e, if the expression list contained three vectors from one plot
and two from another, then two plots will be written, one with three
vectors and one with two.)  Additionally, if the scale for a vector
isn't present, it is automatically written out as well.
The default format
is ascii, but this can be changed with the \fBset filetype\fR command.
The default filename is \fBrawspice\fR, or the argument to the \fB-r\fR
flag on the command line, if there was one, and the default expression
list is \fBall\fR.
.TP
\fBshell [args ...]\fR
Fork a shell, or execute the arguments as a command to the shell.
.TP
\fBalias [word] [text ...]\fR
Causes \fBword\fR to be aliased to \fBtext\fR.  History substitutions may
be used, as in C-shell aliases.
.TP
\fBunalias [word ...]\fR
Removes any aliases present for the \fBword\fRs.
.TP
\fBhistory [number]\fR
Print out the history, or the last \fBnumber\fR commands typed at the keyboard.
\fINote:\fR in \*S version 3a7 and earlier, all commands (including ones read
from files) were saved.
.TP
\fBset [word] [word = value] ... \fR
Set the value of \fBword\fR to be \fBvalue\fR, if it is present.
You can set any word to be any value, numeric or string.  If no value is
given then the value is the boolean 'true'.   The value of \fIword\fR may
be inserted into a command by writing \fI$word\fR.
If a variable is set to a list of values that are enclosed in parentheses 
(which
\fBmust\fR be seperated from their values by white space), the value
of the variable is the list.
The variables meaningful to \fBnutmeg\fR (of which there are too many) are:
.IP "" 16
\fBabstol\fR
.br
The absolute tolerance used by the \fBdiff\fR command.
.IP
\fBappendwrite\fR
.br
Append to the file when a \fBwrite\fR command is issued, if one
already exists.
.IP
\fBcolor\fIN\fR
.br
These variables determine the colors used, if \fBX\fR is being run on
a color display.
\fIN\fR may be between 0 and 15.  Color 0 is the background, color 1
is the grid and text color, and colors 2 through 15 are used in order for
vectors plotted.  The value of the \fBcolor\fR variables should be names
of colors, which may be found in the file \fB/usr/lib/rgb.txt\fR.
.IP
\fBcombplot\fR
.br
Plot vectors by drawing a vertical line from each point to the X-axis,
as opposed to joining the points.  Note that this option is subsumed
in the \fIplottype\fR option, below.
.IP
\fBcpdebug\fR
.br
Print \fIcshpar\fR debugging information. (Must be complied with the
-DCPDEBUG flag.)
.IP
\fBdebug\fR 
.br
If set then a lot of debugging information is printed. (Must be
compiled with the -DFTEDEBUG flag.)
.IP
\fBdevice\fR
.br
The name (/dev/tty??) of the graphics device. If this variable
isn't set then the user's terminal is used. To do plotting on
another monitor you will probably have to set both the \fBdevice\fR
and \fBterm\fR variables.  (If \fBdevice\fR is set to the name of
a file, \fBnutmeg\fR will dump the graphics control codes into
this file -- this is useful for saving plots.)
.\".IP
.\"\fBdontplot\fR 
.\".br
.\"No graphics control codes are actually sent. (Useful for debugging on
.\"non-graphics terminals.)
.IP
\fBecho\fR 
.br
Print out each command before it is executed.
.IP
\fBfiletype\fR
.br
This can be either
.B ascii
or
.B binary,
and determines what the format of
.I rawfiles
will be. The default is
.B ascii.
.IP
\fBfourgridsize\fR
.br
How many points to use for interpolating into when doing fourier analysis.
.\".IP
.\"\fBgeometry\fIN\fR
.\".br
.\"The size and positioning information for X windows.  \fIN\fR may be
.\"any positive integer, in which case it is the information for the \fIN\fR'th
.\"window on the screen, or may be omitted, in which case it is used whenever
.\"there is no information for the window.  The geometry information is a string
.\"of the form \fR=\fIheight\fBx\fIwidth\fB+\fIxoff\fB+\fIyoff\fR, where the
.\"window will be of size \fIheight\fR by \fIwidth\fR and be positioned at
.\"(\fIxoff, yoff\fR), where (0,0) is the upper left hand corner of the screen.
.\"Either the positioning information or the size information may be omitted,
.\"in which case the window will be opened interactively (as will happen if no
.\"\fBgeometry\fR information is given).  The method of interactive sizing is
.\"the same as for other X utilities.
.\"A typical use for the \fBgeometry\fR variables might be to set \fBmaxwins\fR
.\"to 3 and set \fBgeometry1, geometry2,\fR and \fBgeometry3\fR to position three
.\"plot windows in a row across the top of the screen.
.IP
\fBgridsize\fR
.br
If this variable is set to an integer, this number will be used as the number
of equally spaced points to use for the Y-axis when plotting.  Otherwise
the current scale will be used (which may not have equally spaced points).
If the current scale isn't strictly monotonic, then this option will have
no effect.
.IP
\fBhcopydev\fR
.br
If this is set, when the \fBhardcopy\fR command is run the resulting file
is automatically printed on the printer named \fBhcopydev\fR with the
command \fIlpr -P\fBhcopydev\fI -g \fBfile\fR.
.IP
\fBhcopydevtype\fR 
.br
This variable specifies the type of the printer output to use in the
\fBhardcopy\fR command.  If hcopydevtype is not set, plot (5) format
is assumed.  The standard distribution currently recognizes \fBpostscript\fR
as an alternative output format.  When used in conjunction with
\fBhcopydev\fR, \fBhcopydevtype\fR should specify a format supported by
the printer.
.IP
\fBheight\fR 
.br
The length of the page for \fBasciiplot\fR and \fBprint col\fR.
.IP
\fBhistory\fR 
.br
The number of events to save in the history list.
.\".IP
.\"\fBmaxwins\fR
.\".br
.\"The maximum number of windows X should have on the screen at one time.
.\"If it has \fBmaxwins\fR or more windows, it will begin re-using them
.\"for plots in an oldest-first manner.
.IP
\fBnfreqs\fR
.br
The number of frequencies to compute in the
.B fourier
command. (Defaults to 10.)
.IP
\fBnobreak\fR 
.br
Don't have \fBasciiplot\fR and \fBprint col\fR break between pages.
.IP
\fBnoasciiplotvalue\fR
.br
Don't print the first vector plotted to the left when doing an
\fBasciiplot\fR.
.IP
\fBnoclobber\fR 
.br
Don't overwrite existing files when doing IO redirection.
.IP
\fBnoglob\fR
.br
Don't expand the global characters `*', `?', `[', and `]'. This is the
default.
.IP
\fBnogrid\fR
.br
Don't plot a grid when graphing curves (but do label the axes).
.IP
\fBnomoremode\fR
.br
If \fBnomoremode\fR is not set, whenever a large amount of data is being
printed to the screen (e.g, the \fBprint\fR or \fBasciiplot\fR commands),
the output will be stopped every screenful and will continue when
a carriage return is typed. If \fBnomoremode\fR is set then data will scroll
off the screen without hesitation.
.IP
\fBnonomatch\fR
.br
If \fBnoglob\fR is unset and a global expression cannot be matched, use
the global characters literally instead of complaining.
.IP
\fBnosort\fR 
.br
Don't have \fBdisplay\fR sort the variable names.
.IP
\fBnoprintscale\fR 
.br
Don't print the scale in the leftmost column when a \fBprint col\fR command
is given.
.IP
\fBnumdgt\fR
.br
The number of digits to print when printing tables of data (\fBfourier, print
col\fR).  The default precision is 6 digits.  On the VAX, approximately
16 decimal digits are available using double precision, so \fBnumdgt\fR
should not be more than 16.  If the number is negative, one fewer digit
is printed to ensure constant widths in tables.
.IP
\fBplottype\fR
.br
This should be one of \fInormal\fR, \fIcomb\fR, or \fIpoint:\fBchars\fR.
\fInormal\fR, the  default, causes points to be plotted as parts of connected
lines.  \fIcomb\fR causes a comb plot to be done (see the description of the
\fIcombplot\fR variable above).  \fIpoint\fR causes each point to be plotted
seperately \- the \fBchars\fR are a list of characters that will be used
for each vector plotted.  If they are omitted then a default set is used.
.IP
\fBpolydegree\fR
.br
The degree of the polynomial that the \fBplot\fR command should fit
to the data. If \fIpolydegree\fR is N, then \fBnutmeg\fR will fit a degree N
polynomial to every set of N points and draw 10 intermediate points
in between each endpoint. If the points aren't monotonic, then it will try
rotating the curve and reducing the degree until a fit is achieved.
.IP
\fBpolysteps\fR
.br
The number of points to interpolate between every pair of points available
when doing curve fitting. The default is 10. (This should really be done
automatically.)
.IP
\fBprogram\fR 
.br
The name of the current program (\fIargv[0]\fR).
.IP
\fBprompt\fR 
.br
The prompt, with the character `!' replaced by the current event number.
.IP
\fBrawfile\fR
.br
The default name for rawfiles created.
.IP
\fBreltol\fR
.br
The relative tolerance used by the \fBdiff\fR command.
.IP
\fBrhost\fR
.br
The machine to use for remote \s-2SPICE-3\s+2 runs, instead of the
default one. (See the description of the \fBrspice\fR command,
below.)
.IP
\fBrprogram\fR
.br
The name of the remote program to use in the \fBrspice\fR command.
.\".IP
.\"\fBsavewins\fR
.\".br
.\"If true, then don't get rid of the plot window after the plot is done (X
.\"only).  The window may be removed by clicking any mouse button inside of it.
.IP
\fBslowplot\fR
.br
Stop between each graph plotted and wait for the user to type
return before continuing.
.IP
\fBsourcepath\fR
.br
A list of the directories to search when a \fBsource\fR command is given.
The default is the current directory and the standard spice library
(\fI/usr/local/lib/spice\fR, or whatever \fBLIBPATH\fR is #defined to
in the \*S source.
.IP
\fBspicepath\fR
.br
The program to use for the \fBaspice\fR command. The default is
/cad/bin/spice.
.IP
\fBterm\fR 
.br
The \fImfb\fR name of the current terminal.
.IP
\fBunits\fR 
.br
If this is \fBdegrees\fR, then all the trig functions will use degrees
instead of radians.
.IP
\fBunixcom\fR
.br
If a command isn't defined, try to execute it as a \s-2UNIX\s+2 command.
Setting this option has the effect of giving a \fBrehash\fR command,
below.
This is useful for people who want to use \fBnutmeg\fR as a login shell.
.IP
\fBverbose\fR 
.br
Be verbose. This is midway between \fBecho\fR and \fBdebug\fR / \fBcpdebug\fR.
.IP
\fBvntol\fR
.br
The absolute voltage tolerance used by the \fBdiff\fR command.
.IP
\fBwidth\fR 
.br
The width of the page for \fBasciiplot\fR and \fBprint col\fR.
.IP
\fBxbrushheight\fR
.br
The height of the brush to use if \fBX\fR is being run.
.IP
\fBxbrushwidth\fR
.br
The width of the brush to use if \fBX\fR is being run.
.IP
\fBxfont\fR
.br
The name of the X font to use when plotting data and entering labels.
The plot may not look entirely great if this is a variable-width font.
.PP
.TP
\fBunset [word] ... \fR
Unset the variables \fBword\fR.