1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693
|
.TH DOT 1 "12 July 2013"
.SH NAME
dot \- filter for drawing directed graphs
.br
neato \- filter for drawing undirected graphs
.br
twopi \- filter for radial layouts of graphs
.br
circo \- filter for circular layout of graphs
.br
fdp \- filter for drawing undirected graphs
.br
sfdp \- filter for drawing large undirected graphs
.br
patchwork \- filter for tree maps
.SH SYNOPSIS
\fBdot\fR
[\fIoptions\fP]
[files]
.br
\fBneato\fR
[\fIoptions\fP]
[files]
.br
\fBtwopi\fR
[\fIoptions\fP]
[files]
.br
\fBcircle\fR
[\fIoptions\fP]
[files]
.br
\fBfdp\fR
[\fIoptions\fP]
[files]
.br
\fBsfdp\fR
[\fIoptions\fP]
[files]
.br
\fBpatchwork\fR
[\fIoptions\fP]
[files]
.SH DESCRIPTION
These are a collection of programs for drawing graphs.
There is actually only one main program; the specific layout algorithms
implemented as plugins. Thus, they largely share all of the same command-line
options.
.I dot
draws directed graphs. It works well on DAGs and other graphs
that can be drawn as hierarchies.
.PP
.I neato
draws undirected graphs using ``spring'' models (see Kamada and Kawai,
Information Processing Letters 31:1, April 1989).
.PP
.I twopi
draws graphs using a radial layout (see G. Wills,
Symposium on Graph Drawing GD'97, September, 1997).
Basically, one node is chosen as the center and put at the origin.
The remaining nodes are placed on a sequence of concentric circles
centered about the origin, each a fixed radial distance from the
previous circle.
All nodes distance 1 from the center are placed on the first circle;
all nodes distance 1 from a node on the first circle are placed on
the second circle; and so forth.
.PP
.I circo
draws graphs using a circular layout (see
Six and Tollis, GD '99 and ALENEX '99, and
Kaufmann and Wiese, GD '02.)
The tool identifies biconnected components and draws the nodes of
the component on a circle. The block\(hycutpoint tree
is then laid out using a recursive radial algorithm. Edge
crossings within a circle are minimized by placing as many edges on
the circle's perimeter as possible.
In particular, if the component is outerplanar, the component will
have a planar layout.
.PP
If a node belongs to multiple non\(hytrivial biconnected components,
the layout puts the node in one of them. By default, this is the first
non\(hytrivial component found in the search from the root component.
.PP
.I fdp
draws undirected graphs using a ``spring'' model. It relies on a
force\(hydirected approach in the spirit of Fruchterman and Reingold
(cf. Software\(hyPractice & Experience 21(11), 1991, pp. 1129\(hy1164).
.PP
.I sfdp
also draws undirected graphs using the ``spring'' model described
above, but it uses a multi-scale approach to produce layouts
of large graphs in a reasonably short time.
.PP
.I patchwork
draws the graph as a squarified treemap (see M. Bruls et al., "Squarified treemaps", Proc. Joint Eurographics
and IEEE TCVG Symp. on Visualization, 2000, pp. 33-42). The clusters of the graph are used to
specify the tree.
.SH OUTPUT FORMATS
Graphviz uses an extensible plugin mechanism for its output renderers,
so to see what output formats your installation of dot supports
you can use ``dot \-Txxx'' (where xxx is an unlikely format)
and check the warning message.
Also, The plugin mechanism supports multiple implementations
of the output formats.
To see what variants are available, use, for example: ``dot \-Tpng:''
and to force a particular variant, use, for example: ``dot \-Tpng:gd''
.P
Traditionally, Graphviz supports the following:
.br
\fB\-Tps\fP (PostScript),
.br
\fB\-Tsvg\fP \fB\-Tsvgz\fP (Structured Vector Graphics),
.br
\fB\-Tfig\fP (XFIG graphics),
.br
\fB\-Tpng\fP \fB\-Tgif\fP (bitmap graphics),
.br
\fB\-Timap\fP (imagemap files for httpd servers for each node or edge
that has a non\(hynull "href" attribute.),
.br
\fB\-Tcmapx\fP (client\(hyside imagemap for use in html and xhtml).
.br
Additional less common or more special\(hypurpose output formats
can be found at //http://www.graphviz.org/content/output-formats.
.PP
Alternative plugins providing support for a given output format
can be found from the error message resulting from appending a ':' to the format. e.g. \fB-Tpng:\fP
The first plugin listed is always the default.
.PP
The \fB\-P\fP switch can be used to produce a graph of all output variants supported by plugins in the local installation of graphviz.
.SH GRAPH FILE LANGUAGE
Here is a synopsis of the graph file language, normally using the extension \fB.gv\fR, for graphs:
.PP
[\fBstrict\fR] (\fBgraph\fR|\fBdigraph\fR) \fIname\fP { \fIstatement\(hylist\fP }\fR
.br
is the top\(hylevel graph. If the graph is \fBstrict\fR, then multiple edges are
not allowed between the same pairs of nodes.
If it is a directed graph, indicated by \fBdigraph\fR,
then the \fIedgeop\fR must be "\->". If it is an undirected \fBgraph\fR
then the \fIedgeop\fR must be "\-\-".
.PP
Statements may be:
.PP
\fIname\fB=\fIval\fB;\fR
.br
\fBnode [\fIname\fB=\fIval\fB];\fR
.br
\fBedge [\fIname\fB=\fIval\fB];\fR
.br
Set default graph, node, or edge attribute \fIname\fP to \fIval\fP.
Any subgraph, node, or edge appearing after this inherits the new
default attributes.
.PP
\fBn0 [\fIname0=val0,name1=val1,...\fB];\fR
.br
Creates node \fBn0\fP (if it does not already exist)
and sets its attributes according to the optional list.
.PP
\fBn0 \fIedgeop\fR n1 \fIedgeop\fR \fI...\fB \fIedgeop\fR nn \fB[\fIname0=val0,name1=val1,...\fB];\fR
.br
Creates edges between nodes \fBn0\fP, \fBn1\fP, ..., \fBnn\fP and sets
their attributes according to the optional list.
Creates nodes as necessary.
.PP
[\fBsubgraph \fIname\fR] \fB{ \fIstatement\(hylist \fB}\fR
.br
Creates a subgraph. Subgraphs may be used in place
of \fBn0\fP, ..., \fBnn\fP in the above statements to create edges.
[\fBsubgraph \fIname\fR] is optional;
if missing, the subgraph is assigned an internal name.
.PP
Comments may be /*C\(hylike*/ or //C++\(hylike.
.PP
Attribute names and values are ordinary (C\(hystyle) strings.
The following sections describe attributes that control graph layout.
.PP
A more complete description of the language can be found at
http://www.graphviz.org/content/dot-language.
.SH "GRAPH, NODE AND EDGE ATTRIBUTES"
Graphviz uses the \fIname\fP=\fIvalue\fP attributes, attached to graphs, subgraphs,
nodes and edges, to tailor the layout and rendering. We list the more prominent
attributes below. The complete list is available at
http://www.graphviz.org/content/attrs.
.SH " Graph Attributes"
\fBsize="\fIx,y\fP"\fR specifies the maximum bounding box of drawing in inches.
.PP
\fBratio=\fIf\fR sets the aspect ratio to \fIf\fP which may be
a floating point number, or one of the keywords \fBfill\fP,
\fBcompress\fP, or \fBauto\fP.
.PP
\fBlayout=\fIengine\fR indicates the preferred layout engine ("dot", "neato", fdp" etc) overriding the default from the basename of the command or the \-K commandline option.
.PP
\fBmargin=\fIf\fR sets the page margin (included in the page size).
.PP
\fBnodesep=\fIf\fR sets the minimum separation between nodes.
.PP
\fBranksep=\fIf\fR sets the minimum separation between ranks.
.PP
\fBordering=out\fR constrains order of out\(hyedges in a subgraph
according to their file sequence.
.PP
\fBrankdir=LR|RL|BT\fR requests a left\(hyto\(hyright, right\(hyto\(hyleft, or bottom\(hyto\(hytop, drawing.
.PP
\fBrank=same\fR (or \fBmin\fP or \fBmax\fP) in a subgraph
constrains the rank assignment of its nodes. If a subgraph's
name has the prefix \fBcluster\fP, its nodes are drawn in
a distinct rectangle of the layout. Clusters may be nested.
.PP
\fBrotate=90\fR sets landscape mode.
(\fBorientation=land\fR is backward compatible but obsolete.)
.PP
\fBcenter=\fIn\fR a non\(hyzero value centers the drawing on the page.
.PP
\fBcolor=\fIcolorvalue\fR sets foreground color (\fBbgcolor\fP for background).
.PP
\fBhref=\fI"url"\fR the default url for image map files; in PostScript files,
the base URL for all relative URLs, as recognized by Acrobat Distiller
3.0 and up.
.PP
\fBURL=\fI"url"\fR ("URL" is a synonym for "href".)
.PP
\fBstylesheet=\fI"file.css"\fR includes a reference to a stylesheet
in \-Tsvg and \-Tsvgz outputs. Ignored by other formats.
.PP
\fBsplines\fR If set to \fItrue\fR, edges are
drawn as splines.
If set to \fIpolyline\fR, edges are
drawn as polylines.
If set to \fIortho\fR, edges are
drawn as orthogonal polylines.
In all of these cases, the nodes may not overlap.
If \fBsplines=\fIfalse\fR or \fBsplines=\fIline\fR, edges are
drawn as line segments.
The default is \fItrue\fR for dot, and \fIfalse\fR for all other layouts.
.PP
\fB(neato\(hyspecific attributes)\fR
.br
\fBstart=\fIval\fR. Requests random initial placement and seeds
the random number generator. If \fIval\fP is not an integer,
the process ID or current time is used as the seed.
.PP
\fBepsilon=\fIn\fR. Sets the cutoff for the solver.
The default is 0.1.
.PP
\fB(twopi\(hyspecific attributes)\fR
.br
\fBroot=\fIctr\fR. This specifies the node to be used as the center of
the layout. If not specified, \fItwopi\fP will randomly pick one of the
nodes that are furthest from a leaf node, where a leaf node is a node
of degree 1. If no leaf nodes exists, an arbitrary node is picked as center.
.PP
\fBranksep=\fIval\fR. Specifies the radial distance in inches between
the sequence of rings. The default is 0.75.
.PP
\fBoverlap=\fImode\fR. This specifies what \fItwopi\fP should do if
any nodes overlap. If mode is \fI"false"\fP, the program uses Voronoi
diagrams to adjust the nodes to eliminate overlaps. If mode is \fI"scale"\fP,
the layout is uniformly scaled up, preserving node sizes, until nodes no
longer overlap. The latter technique removes overlaps while preserving
symmetry and structure, while the former removes overlaps more compactly
but destroys symmetries.
If mode is \fI"true"\fP (the default), no repositioning is done.
.PP
\fB(circo\(hyspecific attributes)\fR
.br
\fBroot=\fInodename\fR. Specifies the name of a node occurring in the
root block. If the graph is disconnected, the \fBroot\fP node attribute
can be used to specify additional root blocks.
.PP
\fBmindist=\fIvalue\fR. Sets the minimum separation between all nodes. If not
specified then \fIcirco\fP uses a default value of 1.0.
.PP
\fB(fdp\(hyspecific attributes)\fR
.br
\fBK=\fIval\fR. Sets the default ideal node separation
in the layout.
.PP
\fBmaxiter=\fIval\fR. Sets the maximum number of iterations used to
layout the graph.
.PP
\fBstart=\fIval\fR. Adjusts the random initial placement of nodes
with no specified position. If \fIval\fP is is an integer,
it is used as the seed for the random number generator.
If \fIval\fP is not an integer, a random system\(hygenerated integer,
such as the process ID or current time, is used as the seed.
.PP
.SH " Node Attributes"
.PP
\fBheight=\fId\fR or \fBwidth=\fId\fR sets minimum height or width.
Adding \fBfixedsize=true\fP forces these to be the actual size
(text labels are ignored).
.PP
\fBshape=record polygon epsf \fIbuiltin_shape\fR
.br
\fIbuiltin_polygon\fR can be \fBplaintext ellipse oval circle egg
triangle box diamond trapezium parallelogram house hexagon octagon
note tab box3d component\fR, among others.
(Polygons are defined or modified by the following node attributes:
\fBregular\fR, \fBperipheries\fR, \fBsides\fR, \fBorientation\fR,
\fBdistortion\fR and \fBskew\fR.) \fBepsf\fR uses the node's
\fBshapefile\fR attribute as the path name of an external
EPSF file to be automatically loaded for the node shape.
.PP
See http://www.graphviz.org/content/node-shapes for a complete description
of node shapes.
.PP
\fBlabel=\fItext\fR where \fItext\fP may include escaped newlines
\\\|n, \\\|l, or \\\|r for center, left, and right justified lines.
The string '\\N' value will be replaced by the node name.
The string '\\G' value will be replaced by the graph name.
Record labels may contain recursive box lists delimited by { | }.
Port identifiers in labels are set off by angle brackets < >.
In the graph file, use colon (such as, \fBnode0:port28\fR).
.PP
Graphviz also supports special HTML-like labels for constructing complex node
content. A full\(hydescription of these is given at http://www.graphviz.org/content/node-shapes#html.
.PP
\fBfontsize=\fIn\fR sets the label type size to \fIn\fP points.
.PP
\fBfontname=\fIname\fR sets the label font family name.
.PP
\fBcolor=\fIcolorvalue\fR sets the outline color, and the default fill color
if style=filled and \fBfillcolor\fR is not specified.
.PP
\fBfillcolor=\fIcolorvalue\fR sets the fill color
when style=filled. If not specified, the fillcolor when style=filled defaults
to be the same as the outline color.
.PP
\fBfontcolor=\fIcolorvalue\fR sets the label text color.
.PP
A \fIcolorvalue\fP may be "\fIh,s,v\fB"\fR (hue, saturation, brightness)
floating point numbers between 0 and 1, or an X11 color name such as
\fBwhite black red green blue yellow magenta cyan\fR or \fBburlywood\fR,
or a "\fI#rrggbb" (red, green, blue, 2 hex characters each) value.
.PP
\fBstyle=filled solid dashed dotted bold invis\fP or any Postscript code.
.PP
\fBhref=\fI"url"\fR sets the url for the node in imagemap, PostScript and SVG
files.
The substrings '\\N' and '\\G' are substituted in the same manner as
for the node label attribute.
Additionally the substring '\\L' is substituted with the node label string.
.PP
\fBURL=\fI"url"\fR ("URL" is a synonym for "href".)
.PP
\fBtarget=\fI"target"\fR is a target string for client\(hyside imagemaps
and SVG, effective when nodes have a URL.
The target string is used to determine which window of the browser is used
for the URL. Setting it to "_graphviz" will open a new window if it doesn't
already exist, or reuse it if it does.
If the target string is empty, the default,
then no target attribute is included in the output.
The substrings '\\N' and '\\G' are substituted in the same manner as
for the node label attribute.
Additionally the substring '\\L' is substituted with the node label string.
.PP
\fBtooltip=\fI"tooltip"\fR is a tooltip string for client\(hyside imagemaps
and SVG, effective when nodes have a URL. The tooltip string defaults to be the
same as the label string, but this attribute permits nodes without
labels to still have tooltips thus permitting denser graphs.
The substrings '\\N' and '\\G' are substituted in the same manner as
for the node label attribute.
Additionally the substring '\\L' is substituted with the node label string.
.PP
The following attributes apply only to polygon shape nodes:
.PP
\fBregular=\fIn\fR if \fIn\fR is non\(hyzero then the polygon is made
regular, i.e. symmetric about the x and y axis, otherwise the
polygon takes on the aspect ratio of the label.
\fIbuiltin_polygons\fR that are not already regular are made regular
by this attribute.
\fIbuiltin_polygons\fR that are already regular are not affected (i.e.
they cannot be made asymmetric).
.PP
\fBperipheries=\fIn\fR sets the number of periphery lines drawn around
the polygon. This value supersedes the number of periphery lines
of \fIbuiltin_polygons\fR.
.PP
\fBsides=\fIn\fR sets the number of sides to the polygon. \fIn\fR<3
results in an ellipse.
This attribute is ignored by \fIbuiltin_polygons\fR.
.PP
\fBorientation=\fIf\fR sets the orientation of the first apex of the
polygon counterclockwise from the vertical, in degrees.
\fIf\fR may be a floating point number.
The orientation of labels is not affected by this attribute.
This attribute is added to the initial orientation of \fIbuiltin_polygons.\fR
.PP
\fBdistortion=\fIf\fR sets the amount of broadening of the top and
narrowing of the bottom of the polygon (relative to its orientation).
Floating point values between \-1 and +1 are suggested.
This attribute is ignored by \fIbuiltin_polygons\fR.
.PP
\fBskew=\fIf\fR sets the amount of right\(hydisplacement of the top and
left\(hydisplacement of the bottom of the polygon (relative to its
orientation).
Floating point values between \-1 and +1 are suggested.
This attribute is ignored by \fIbuiltin_polygons\fR.
.PP
\fB(circo\(hyspecific attributes)\fR
.br
\fBroot=\fItrue/false\fR. This specifies that the block containing the given
node be treated as the root of the spanning tree in the layout.
.PP
\fB(fdp\(hyspecific attributes)\fR
.br
\fBpin=\fIval\fR. If \fIval\fR is "true", the node will remain at
its initial position.
.SH " Edge Attributes"
\fBminlen=\fIn\fR where \fIn\fP is an integer factor that applies
to the edge length (ranks for normal edges, or minimum node separation
for flat edges).
.PP
\fBweight=\fIn\fR where \fIn\fP is the integer cost of the edge.
Values greater than 1 tend to shorten the edge. Weight 0 flat
edges are ignored for ordering nodes.
.PP
\fBlabel=\fItext\fR where \fItext\fR may include escaped newlines
\\\|n, \\\|l, or \\\|r for centered, left, or right justified lines.
If the substring '\\T' is found in a label it will be replaced by the tail_node name.
If the substring '\\H' is found in a label it will be replaced by the head_node name.
If the substring '\\E' value is found in a label it will be replaced by: tail_node_name\->head_node_name
If the substring '\\G' is found in a label it will be replaced by the graph name.
or by: tail_node_name\-\-head_node_name for undirected graphs.
.PP
\fBfontsize=\fIn\fR sets the label type size to \fIn\fP points.
.PP
\fBfontname=\fIname\fR sets the label font family name.
.PP
\fBfontcolor=\fIcolorvalue\fR sets the label text color.
.PP
\fBstyle=solid dashed dotted bold invis\fP
.PP
\fBcolor=\fIcolorvalue\fR sets the line color for edges.
.PP
\fBcolor=\fIcolorvaluelist\fR a ':' separated list of \fIcolorvalue\fR creates
parallel edges, one edge for each color.
.PP
\fBdir=forward back both none\fP controls arrow direction.
.PP
\fBtailclip,headclip=false\fP disables endpoint shape clipping.
.PP
\fBhref=\fI"url"\fR sets the url for the node in imagemap, PostScript and SVG
files.
The substrings '\\T', '\\H', '\\E' and '\\G' are substituted in the same manner as
for the edge label attribute.
Additionally the substring '\\L' is substituted with the edge label string.
.PP
\fBURL=\fI"url"\fR ("URL" is a synonym for "href".)
.PP
\fBtarget=\fI"target"\fR is a target string for client\(hyside imagemaps
and SVG, effective when edges have a URL.
If the target string is empty, the default,
then no target attribute is included in the output.
The substrings '\\T', '\\H', '\\E' and '\\G' are substituted in the same manner as
for the edge label attribute.
Additionally the substring '\\L' is substituted with the edge label string.
.PP
\fBtooltip=\fI"tooltip"\fR is a tooltip string for client\(hyside imagemaps
effective when edges have a URL. The tooltip string defaults to be the
same as the edge label string.
The substrings '\\T', '\\H', '\\E' and '\\G' are substituted in the same manner as
for the edge label attribute.
Additionally the substring '\\L' is substituted with the edge label string.
.PP
\fBarrowhead,arrowtail=none, normal, inv, dot, odot, invdot, invodot,
tee, empty, invempty, open, halfopen, diamond, odiamond, box, obox, crow\fP.
.PP
\fBarrowsize\fP (norm_length=10,norm_width=5,
inv_length=6,inv_width=7,dot_radius=2)
.PP
\fBheadlabel,taillabel=string\fP for port labels.
\fBlabelfontcolor\fP,\fBlabelfontname\fP,\fBlabelfontsize\fP
for head and tail labels.
The substrings '\\T', '\\H', '\\E' and '\\G' are substituted in the same manner as
for the edge label attribute.
Additionally the substring '\\L' is substituted with the edge label string.
.PP
\fBheadhref=\fI"url"\fR sets the url for the head port in imagemap, PostScript and SVG files.
The substrings '\\T', '\\H', '\\E' and '\\G' are substituted in the same manner as
for the edge label attribute.
Additionally the substring '\\L' is substituted with the edge label string.
.PP
\fBheadURL=\fI"url"\fR ("headURL" is a synonym for "headhref".)
.PP
\fBheadtarget=\fI"headtarget"\fR is a target string for client\(hyside imagemaps
and SVG, effective when edge heads have a URL.
The headtarget string is used to determine which window of the browser is used
for the URL. If the headtarget string is empty, the default,
then headtarget defaults to the same value as target for the edge.
The substrings '\\T', '\\H', '\\E' and '\\G' are substituted in the same manner as
for the edge label attribute.
Additionally the substring '\\L' is substituted with the edge label string.
.PP
\fBheadtooltip=\fI"tooltip"\fR is a tooltip string for client\(hyside imagemaps
effective when head ports have a URL. The tooltip string defaults to be the
same as the headlabel string.
The substrings '\\T', '\\H', and '\\E' are substituted in the same manner as
for the edge label attribute.
Additionally the substring '\\L' is substituted with the edge label string.
.PP
\fBtailhref=\fI"url"\fR sets the url for the tail port in imagemap, PostScript and SVG files.
The substrings '\\T', '\\H', '\\E' and '\\G' are substituted in the same manner as
for the edge label attribute.
Additionally the substring '\\L' is substituted with the edge label string.
.PP
\fBtailURL=\fI"url"\fR ("tailURL" is a synonym for "tailhref".)
.PP
\fBtailtarget=\fI"tailtarget"\fR is a target string for client\(hyside imagemaps
and SVG, effective when edge tails have a URL.
The tailtarget string is used to determine which window of the browser is used
for the URL. If the tailtarget string is empty, the default,
then tailtarget defaults to the same value as target for the edge.
The substrings '\\T', '\\H', '\\E' and '\\G' are substituted in the same manner as
for the edge label attribute.
Additionally the substring '\\L' is substituted with the edge label string.
.PP
\fBtailtooltip=\fI"tooltip"\fR is a tooltip string for client\(hyside imagemaps
effective when tail ports have a URL. The tooltip string defaults to be the
same as the taillabel string.
The substrings '\\T', '\\H', '\\E' and '\\G' are substituted in the same manner as
for the edge label attribute.
Additionally the substring '\\L' is substituted with the edge label string.
.PP
\fBlabeldistance\fP and \fBlabelangle\fP (in degrees CCW) specify the placement of
head and tail labels.
.PP
\fBdecorate\fP draws line from edge to label.
.PP
\fBsamehead,sametail\fP aim edges having the same value to the
same port, using the average landing point.
.PP
\fBconstraint=false\fP causes an edge to be ignored for rank assignment.
.PP
\fBlayer=\fIid\fR or \fIid:id\fR or "all" sets the edge's active layers.
The empty string means no layers (invisible).
.PP
\fB(neato\(hyspecific attributes)\fR
.br
\fBw=\fIf\fR sets the weight (spring constant) of an edge
to the given floating point value. The default is 1.0;
greater values make the edge tend more toward its optimal length.
.PP
\fBlen=\fIf\fR sets the optimal length of an edge.
The default is 1.0.
.PP
\fB(fdp\(hyspecific attributes)\fR
.br
\fBweight=\fIf\fR sets the weight of an edge
to the given floating point value. The default is 1.0;
greater values make the edge tend more toward its optimal length.
.SH "COMMAND\(hyLINE OPTIONS"
\fB\-G\fP sets a default graph attribute.
.br
\fB\-N\fP sets a default node attribute.
.br
\fB\-E\fP sets a default edge attribute.
Example: \fB\-Gsize="7,8" \-Nshape=box \-Efontsize=8\fR
.PP
\fB\-l\fIfile\fR loads custom PostScript library files.
Usually these define custom shapes or styles.
If \fB\-l\fP is given by itself, the standard library is omitted.
.PP
\fB\-T\fIlang\fR sets the output language as described above.
.PP
\fB\-n\fR[\fB1\fR|\fB2\fR] (no\(hyop)
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\(hynode overlap,
depending on the value of the overlap attribute,
computes the edge layouts, depending on the value of the \fBsplines\fR attribute,
and emits the graph in the appropriate format.
If num is supplied, the following actions occur:
.nf
num = 1
.fi
Equivalent to \-n.
.nf
num > 1
.fi
Use node positions as specified,
with no adjustment to remove node\(hynode 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 pos attribute.
As usual, edge layout is guided by the \fBsplines\fR attribute.
.PP
\fB\-K\fIlayout\fR override the default layout engine implied by the command name.
.PP
\fB\-O\fP automatically generate output filenames based on the input filename and the \-T format.
.PP
\fB\-P\fP generate a graph of the currently available plugins.
.PP
\fB\-v\fP (verbose) prints various information useful for debugging.
.PP
\fB\-c\fP configure plugins.
.PP
\fB\-m\fP memory test (observe no growth with top, kill when done).
.PP
\fB\-q\fIlevel\fP set level of message suppression. The default is 1.
.PP
\fB\-s\fIfscale\fP scale input by \fIfscale\fP, the default is 72.
.PP
\fB\-y\fR invert y coordinate in output.
.PP
\fB\-V\fP (version) prints version information and exits.
.PP
\fB\-?\fP prints the usage and exits.
.PP
A complete description of the available command\(hyline options can be found at
http://www.graphviz.org/content/command-line-invocation.
.SH "EXAMPLES"
.nf
digraph test123 {
a \-> b \-> c;
a \-> {x y};
b [shape=box];
c [label="hello\\\|nworld",color=blue,fontsize=24,
fontname="Palatino\-Italic",fontcolor=red,style=filled];
a \-> z [label="hi", weight=100];
x \-> z [label="multi\-line\\\|nlabel"];
edge [style=dashed,color=red];
b \-> x;
{rank=same; b x}
}
.fi
.PP
.nf
graph test123 {
a \-\- b \-\- c;
a \-\- {x y};
x \-\- c [w=10.0];
x \-\- y [w=5.0,len=3];
}
.fi
.SH "CAVEATS"
Edge splines can overlap unintentionally.
.PP
Flat edge labels are slightly broken.
Intercluster edge labels are totally broken.
.PP
Because unconstrained optimization is employed, node boxes can
possibly overlap or touch unrelated edges. All existing
spring embedders seem to have this limitation.
.PP
Apparently reasonable attempts to pin nodes or adjust edge lengths
and weights can cause instability.
.SH AUTHORS
Stephen C. North <north@research.att.com>
.br
Emden R. Gansner <erg@research.att.com>
.br
John C. Ellson <ellson@research.att.com>
.br
Yifan Hu <yifanhu@research.att.com>
.PP
The bitmap driver (PNG, GIF etc) is by Thomas Boutell, <http://www.boutell.com/gd>
.PP
The Truetype font renderer is from
the Freetype Project (David Turner, Robert Wilhelm, and Werner Lemberg)
(who can be contacted at freetype\-devel@lists.lrz\-muenchen.de).
.SH "SEE ALSO"
This man page contains only a small amount of the information related
to the Graphviz layout programs. The most complete information can be
found at http://www.graphviz.org/Documentation.php, especially in the
on\(hyline reference pages. Most of these documents are also available in the
\fIdoc\fP and \fIdoc/info\fP subtrees in the source and binary distributions.
.PP
.BR dotty (1), tcldot (n), xcolors (1), libgraph (3).
.PP
E. R. Gansner, S. C. North, K. P. Vo, "DAG \(hy A Program to Draw Directed Graphs", Software \(hy Practice and Experience 17(1), 1988, pp. 1047\(hy1062.
.br
E. R. Gansner, E. Koutsofios, S. C. North, K. P. Vo, "A Technique for Drawing Directed Graphs," IEEE Trans. on Soft. Eng. 19(3), 1993, pp. 214\(hy230.
.br
S. North and E. Koutsofios, "Applications of graph visualization",
Graphics Interface 94, pp. 234\(hy245.
.br
E.R. Gansner and E. Koutsofios and S. C. North, "Drawing Graphs with dot,"
Available at http://www.graphviz.org/pdf/dotguide.pdf.
.br
S. C. North, "NEATO User's Manual".
Available http://www.graphviz.org/pdf/neatoguide.pdf.
|