Ubuntu Manpage: osage - filter for drawing clustered graphs

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NAME

       osage - filter for drawing clustered graphs

SYNOPSIS

       osage [-(G|N|E)name=value] [-Tlang] [-llibfile] [-ooutfile] [-O] [-P] [-v] [-V] [files]

DESCRIPTION

       osage  draws  clustered  graphs.  As  input,  it  takes  any  graph in the dot format. It draws the graph
       recursively. At each level, there will be a collection of nodes and a collection  of  cluster  subgraphs.
       The  internals of each cluster subgraph are laid out, then the cluster subgraphs and nodes at the current
       level are positioned relative to each other, treating each cluster subgraph as a node.

       At each level, the nodes and cluster subgraphs are  viewed  as  rectangles  to  be  packed  together.  At
       present,  edges  are  ignored  during  packing.  Packing is done using the standard packing functions. In
       particular, the graph attributes pack and packmode control  the  layout.   Each  graph  and  cluster  can
       specify  its own values for these attributes.  Remember also that a cluster inherits its attribute values
       from its parent graph.

       After all nodes and clusters, edges are routed based on the value of the splines attribute.

OUTPUT FORMATS

       Osage uses an extensible plugin mechanism for its output renderers, so to see what  output  formats  your
       installation  of  osage  supports you can use ``osage -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: ``osage -Tpng:'' and to force a particular variant,
       use, for example: ``osage -Tpng:gd''

       Traditionally,  osage  supports  the  following:  -Tps  (PostScript),  -Tsvg  -Tsvgz  (Structured  Vector
       Graphics),  -Tfig  (XFIG  graphics),  -Tmif  (FrameMaker  graphics),  -Thpgl (HP pen plotters), and -Tpcl
       (Laserjet printers), -Tpng -Tgif (bitmap graphics), -Tdia (GTK+ based diagrams), -Timap  (imagemap  files
       for  httpd  servers  for  each  node or edge that has a non‐null "href" attribute.), -Tcmapx (client‐side
       imagemap for use in html and xhtml).  Additional less common or more special‐purpose output  formats  can
       be found at http://www.graphviz.org/doc/info/output.html.)

       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. -Tpng: The first plugin listed is always the default.

GRAPH FILE LANGUAGE

       Here is a synopsis of the graph file language, normally using the extension .gv, for graphs:

       [strict] (graph|digraph) name { statement‐list }
       Is the top level graph. If the graph is strict then multiple edges are not allowed between the same pairs
       of  nodes.   If  it  is a directed graph, indicated by digraph, then the edgeop must be "->". If it is an
       undirected graph then the edgeop must be "--".  Statements may be:

       name=val;
       node [name=val];
       edge [name=val];
       Set default graph, node, or edge attribute name to val.  Any subgraph, node, or edge appearing after this
       inherits the new default attributes.

       n0  [name0=val0,name1=val1,...];  Creates  node n0 (if it does not already exist) and sets its attributes
       according to the optional list.

       n0 edgeop n1 edgeop ... edgeop nn [name0=val0,name1=val1,...];
       Creates edges between nodes n0, n1, ..., nn and sets their attributes according  to  the  optional  list.
       Creates nodes as necessary.

       [subgraph name] { statement‐list }
       Creates  a  subgraph.   Subgraphs  may  be used in place of n0, ..., nn in the above statements to create
       edges.  [subgraph name] is optional; if missing, the subgraph is assigned an internal name.

       Comments may be /*C‐like*/ or //C++‐like.

       Attribute names and values are ordinary (C‐style) strings.  The following  sections  describe  attributes
       that control graph layout.

GRAPH ATTRIBUTES

       size="x,y" sets bounding box of drawing in inches.

       page="x,y" sets the PostScript pagination unit.

       ratio=f  sets  the  aspect  ratio to f which may be a floating point number, or one of the keywords fill,
       compress, or auto.

       pagedir=[TBLR][TBLR] sets the major and minor order of pagination.

       rotate=90 sets landscape mode.  (orientation=land is backward compatible but obsolete.)

       center=n a non‐zero value centers the drawing on the page.

       layers="id:id:id:id" is a sequence of layer identifiers  for  overlay  diagrams.   The  PostScript  array
       variable  layercolorseq  sets  the  assignment of colors to layers. The least index is 1 and each element
       must be a 3‐element array to be interpreted as a color coordinate.

       color=colorvalue sets foreground color (bgcolor for background).

       href="url" 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.

       URL="url" ("URL" is a synonym for "href".)

       stylesheet="file.css" includes a reference to a stylesheet in -Tsvg and -Tsvgz outputs.  Ignored by other
       formats.

       splines. If set to true, edges are drawn as splines.  If set to polyline, edges are drawn  as  polylines.
       If  set  to  ortho,  edges  are  drawn as orthogonal polylines.  In all of these cases, the nodes may not
       overlap.  If splines=false or splines=line, edges are drawn as line segments.  The default is false.

NODE ATTRIBUTES

height=d or width=d sets minimum height or width. Adding fixedsize=true forces these to be the actual
size (text labels are ignored).

shape=record polygon epsf builtin_polygon
builtin_polygon is one of: plaintext ellipse oval circle egg triangle box diamond trapezium parallelogram
house hexagon octagon note tab box3d component. (Polygons are defined or modified by the following node
attributes: regular, peripheries, sides, orientation, distortion and skew.) epsf uses the node's
shapefile attribute as the path name of an external EPSF file to be automatically loaded for the node
shape.

label=text where text 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, node0:port28).

fontsize=n sets the label type size to n points.

fontname=name sets the label font family name.

color=colorvalue sets the outline color, and the default fill color if style=filled and fillcolor is not
specified.

fillcolor=colorvalue sets the fill color when style=filled. If not specified, the fillcolor when
style=filled defaults to be the same as the outline color.

fontcolor=colorvalue sets the label text color.

A colorvalue may be "h,s,v" (hue, saturation, brightness) floating point numbers between 0 and 1, or an
X11 color name such as white black red green blue yellow magenta cyan or burlywood, or a "#rrggbb" (red,
green, blue, 2 hex characters each) value.

style=filled solid dashed dotted bold invis or any Postscript code.

layer=id or id:id or "all" sets the node's active layers. The empty string means no layers (invisible).

The following attributes apply only to polygon shape nodes:

regular=n if n is non‐zero 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. builtin_polygons that are not already
regular are made regular by this attribute. builtin_polygons that are already regular are not affected
(i.e. they cannot be made asymmetric).

peripheries=n sets the number of periphery lines drawn around the polygon. This value supersedes the
number of periphery lines of builtin_polygons.

sides=n sets the number of sides to the polygon. n<3 results in an ellipse. This attribute is ignored by
builtin_polygons.

orientation=f sets the orientation of the first apex of the polygon counterclockwise from the vertical,
in degrees. f 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 builtin_polygons.

distortion=f 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 builtin_polygons.

skew=f sets the amount of right‐displacement of the top and left‐displacement of the bottom of the
polygon (relative to its orientation). Floating point values between -1 and +1 are suggested. This
attribute is ignored by builtin_polygons.

href="url" 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.

URL="url" ("URL" is a synonym for "href".)

target="target" is a target string for client‐side 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.

tooltip="tooltip" is a tooltip string for client‐side 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.

EDGE ATTRIBUTES

label=text where text 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.

fontsize=n sets the label type size to n points.

fontname=name sets the label font family name.

fontcolor=colorvalue sets the label text color.

style=solid dashed dotted bold invis

color=colorvalue sets the line color for edges.

color=colorvaluelist a ':' separated list of colorvalue creates parallel edges, one edge for each color.

dir=forward back both none controls arrow direction.

tailclip,headclip=false disables endpoint shape clipping.

href="url" 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.

URL="url" ("URL" is a synonym for "href".)

target="target" is a target string for client‐side 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.

tooltip="tooltip" is a tooltip string for client‐side 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.

arrowhead,arrowtail=none, normal, inv, dot, odot, invdot, invodot, tee, empty, invempty, open, halfopen,
diamond, odiamond, box, obox, crow.

arrowsize (norm_length=10,norm_width=5, inv_length=6,inv_width=7,dot_radius=2)

headlabel,taillabel=string for port labels. labelfontcolor,labelfontname,labelfontsize 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.

headhref="url" 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.

headURL="url" ("headURL" is a synonym for "headhref".)

headtarget="headtarget" is a target string for client‐side 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.

headtooltip="tooltip" is a tooltip string for client‐side 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.

tailhref="url" 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.

tailURL="url" ("tailURL" is a synonym for "tailhref".)

tailtarget="tailtarget" is a target string for client‐side 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.

tailtooltip="tooltip" is a tooltip string for client‐side 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.

labeldistance and port_label_distance set distance; also labelangle (in degrees CCW)

decorate draws line from edge to label.

samehead,sametail aim edges having the same value to the same port, using the average landing point.

layer=id or id:id or "all" sets the edge's active layers. The empty string means no layers (invisible).

(neato‐specific attributes)
w=f 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.

len=f sets the optimal length of an edge. The default is 1.0.

COMMAND LINE OPTIONS

       -G sets a default graph attribute.
       -N sets a default node attribute.
       -E sets a default edge attribute.  Example: -Gsize="7,8" -Nshape=box -Efontsize=8

       -lfile  loads  custom  PostScript library files.  Usually these define custom shapes or styles.  If -l is
       given by itself, the standard library is omitted.

       -Tlang sets the output language as described above.

       -O automatically generate output filenames based on the input filename and the -T format.

       -v (verbose) prints various information useful for debugging.

       -V (version) prints version information and exits.

       -? prints the usage and exits.

EXAMPLES

       digraph test123 {
               pack=8
               subgraph cluster0 {
                 packmode=array
                 x y x0 y0 x1
                 subgraph cluster1 {
                   m n
                 }
               }
               b [shape=box];
               c [label="hello\nworld",color=blue,fontsize=24,
                    fontname="Palatino-Italic",fontcolor=red,style=filled];
               a -> z
               x -> z
               a -> b -> c;
               a -> {x y};
               edge [style=dashed,color=red];
               b -> x;
       }

AUTHORS

       Emden R. Gansner <erg@research.att.com>