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Opsi Command Line Graphviz

posted Sep 21, 2011, 4:27 AM by Editor KursusInternet   [ updated Sep 27, 2011, 10:29 AM ]

Pendahuluan

Penggunaan aplikasi command line pada Graphviz secara general adalah sebagai berikut :

    nama_aplikasi [ flags ] [ file-file input ]

dimana flag adalah kumpulan parameter yang akan ditulis pada bagian selanjutnya, sedangkan file-file input adalah file teks yang berisi perintah-perintah yang dimengerti oleh aplikasi terkait.

Daftar Flags

Berikut adalah daftar flag yang disalin langsung dari situs Graphviz

-Gname[=value]
Set a graph attribute, with default value = true.
-Nname[=value]
Set a default node attribute, with default value = true.
-Ename[=value]
Set a default edge attribute, with default value = true.
-Klayout
Specifies which default layout algorithm to use, overriding the default from the command name. For example, running dot -Kneato is equivalent to running neato.
-Tformat[:renderer[:formatter]]
Set output language to one of the supported formats. By default, attributed dot is produced.

Depending on how Graphviz was built, there may be multiple renderers for generating a particular output format, and multiple formatters for creating the final output. For example, a typical installation can produce PNG output using either the Cairo or GD library. The desired rendering engine can be specified after a colon. If there are multiple formatting engines available, the desired one can be specified in a similar fashion after the rendering engine. Thus, -Tpng:cairospecifies PNG output produced by Cairo (using the Cairo's default formatter), and -Tpng:cairo:gd specifies PNG output produced by Cairo formatted using the GD library.

If no renderer is specified, or a renderer but no formatter, the default one is invoked. The flag -Tformat: produces a list of all of the renderers available for the specified format, the first one listed with a prefix matching format being the default. Using the -v flag, described below, will print which format, renderer, and formatter are actually used.

-V
Emit version information and exit.
-llibrary
User-supplied, device-dependent library text. Multiple flags may be given. These strings are passed to the code generator at the beginning of output.

For PostScript output, they are treated as file names whose content will be included in the preamble after the standard preamble. If library is the empty string "", the standard preamble is not emitted.

-n[num]
Sets no-op flag in neato. If set, neato assumes nodes have already been positioned and all nodes have a pos attribute giving the positions. It then performs an optional adjustment to remove node-node overlap, depending on the value of the overlap attribute, computes the edge layouts, depending on the value of the splines attribute, and emits the graph in the appropriate format. If num is supplied, the following actions occur:
num = 1
Equivalent to -n.
num > 1
Use node positions as specified, with no adjustment to remove node-node overlaps, and use any edge layouts already specified by the pos attribute. neato computes an edge layout for any edge that does not have a posattribute. As usual, edge layout is guided by the splines attribute.
-ooutfile
Write output to file outfile. By default, output goes to stdout.
-O
Automatically generate output file names based on the input file name and the various output formats specified by the -Tflags.
-P
Automatically generate a graph that shows the plugin configuration of the current executable. e.g. dot -P -Tps | lpr
-q
Suppress warning messages.
-s[scale]
Set input scale to scale. If this value is omitted, 72.0 is used. This number is used to convert the point coordinate units used in the pos attribute into inches, which is what is expected by neato and fdp. Thus, feeding the output of a graph laid out by one program into neato or fdp almost always requires this flag. Ignored if the -n flag is used.
-v
Verbose mode
-x
In neato, on input, prune isolated nodes and peninsulas. This removes uninteresting graph structure and produces a less cluttered drawing.
-y
By default, the coordinate system used in generic output formats, such as attributed dotextended dotplain and plain-ext, is the standard cartesian system with the origin in the lower left corner, and with increasing y coordinates as points move from bottom to top. If the -y flag is used, the coordinate system is inverted, so that increasing values of y correspond to movement from top to bottom.
-?
Print usage information, then exit.

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