1SCONVERT(1) General Commands Manual SCONVERT(1)
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6 sconvert - convert spice formats
7
9 sconvert fromtype fromfile totype tofile
10 sconvert fromtype totype
11 sconvert
12
14 Sconvert translates spice output files among three formats: the old
15 binary format, a new binary format, and a new ascii format. The for‐
16 mats are specified by the fromtype and totype arguments: `o' for the
17 old format, `b' for the new binary format, and `a' for the new ascii
18 format. Fromtype specifies the format to be read, and totype specifies
19 the format to be written. If fromfile and tofile are given, then they
20 are used as the input and output, otherwise standard input and output
21 are used. (Note that this second option is only available on UNIX sys‐
22 tems - on VMS and other systems you must supply the filenames.) If no
23 arguments are given, the parameters are prompted for.
24 Binary format is the preferred format for general use, as it is the
26 most economical in terms of space and speed of access, and ascii is
27 provided to make it easy to modify data files and transfer them between
28 machines with different floating-point formats. The old format is pro‐
29 vided only for backward compatibility. The three formats are as fol‐
30 lows:
31 Old:
33 What Size in Bytes
35 title 80
37 date 8
38 time 8
39 numoutputs 2
40 the integer 4 2
41 variable names --
42 char[numoutputs][8] numoutputs * 8
43 types of output numoutputs * 2
44 node index numoutputs * 2
45 plot title numoutputs * 24
46 the actual data numpoints * numoutputs * 8
47 Ascii:
49 Title: Title Card String
51 Date: Date
52 [ Plotname: Plot Name
53 Flags: complex or real
54 No. Variables: numoutputs
55 No. Points: numpoints
56 Command: nutmeg command
57 Variables: 0 varname1 typename1
58 1 varname2 typename2
59 etc...
60 Values:
61 0 n n n n ...
62 1 n n n n ...
63 And so forth...
64 ] repeated one or more times
65 If one of the flags is complex, the points look like r,i where r and i
67 are floating point (in %e format). Otherwise they are in %e format.
68 Only one of real and complex should appear.
69 The lines are guaranteed to be less than 80 columns wide (unless the
71 plot title or variable names are very long), so this format is safe to
72 mail between systems like CMS.
73 Any number of Command: lines may appear between the No. Points: and the
75 Variables: lines, and whenever the plot is loaded into nutmeg they will
76 be executed.
77 Binary:
79 Title Card (a NULL terminated string)
81 Date, Time (a NULL terminated string)
82 [
83 Plot title (a NULL terminated string)
84 Number of variables (an int)
85 Number of data points (an int)
86 flags (a short)
87 variable header struct (repeated numoutputs times)
88 variable name (a NULL terminated string)
89 variable type (an int)
90 set of outputs (repeated numpoints times)
91 ] repeated one or more times.
92 A set of outputs is a vector of doubles of length numoutputs, or a vec‐
94 tor of real-imaginary pairs of doubles if the data is complex.
95
97 nutmeg(1), spice(1), writedata(3)
98
100 Wayne Christopher (faustus@cad.berkeley.edu)
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103 If variable names and the title and plotname strings have trailing
104 blanks in them they will be stripped off when the file is read, if it
105 is in ascii format.
106 If a plot title begins with "Title:" nutmeg will be fooled into think‐
108 ing that this is an ascii format file. Sconvert always requires the
109 type to be specified, however.
1104th Berkeley Distribution 2014-10-28 SCONVERT(1)