From: dperry Date: Thu, 31 Mar 2011 18:09:46 +0000 (+0000) Subject: Fixed links for new website. X-Git-Tag: LAST_LIBGRAPH~32^2~892 X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=9a3ccd8a3027d0dcbf10c972a3345f92d5e50cbf;p=graphviz Fixed links for new website. --- diff --git a/doc/info/attrs.html b/doc/info/attrs.html index abccfe90b..89f938b7b 100644 --- a/doc/info/attrs.html +++ b/doc/info/attrs.html @@ -29,20 +29,20 @@ one would use Further details concerning the setting of attributes can be found in the description of the -DOT language. +DOT language.

At present, most device-independent units are either inches or -points, +points, which we take as 72 points per inch.

-Note: Some attributes, such as -dir or arrowtail, are +Note: Some attributes, such as +dir or arrowtail, are ambiguous when used in -DOT +DOT with an undirected graph since the head and tail of an edge are meaningless. As a convention, the first time an undirected edge appears, the -DOT +DOT parser will assign the left node as the tail node and the right node as the head. For example, the edge A -- B will have tail A and head B. It is the user's responsibility to handle such @@ -54,12 +54,12 @@ the drawing will attach the tail label to node A. To avoid possible confusion when such attributes are required, the user is encouraged to use a directed graph. If it is important to make the graph appear undirected, this can be -done using the dir, arrowtail -or arrowhead attributes. +done using the dir, arrowtail +or arrowhead attributes.

The tools accept standard C representations for int and double types. -For the bool type, TRUE values are +For the bool type, TRUE values are represented by "true" or "yes" (case-insensitive) and any non-zero integer, and FALSE values by "false" or "no" (case-insensitive) and zero. @@ -68,431 +68,431 @@ In addition, there are a variety of specialized types such as pointf and rankdir. Legal values for these types are given at the end.

-In the Used By field, the +In the Used By field, the characters E, N, G, S and C represent edges, nodes, the root graph, subgraphs and cluster subgraphs, respectively. This field indicates which graph component uses the attribute.

- - + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
NameUsed ByTypeDefaultMinimumNotes
Damping +
NameUsed ByTypeDefaultMinimumNotes
Damping Gdouble0.990.0neato only
K +
K GCdouble0.30sfdp, fdp only
URL -ENGCescString +
URL +ENGCescString <none>svg, postscript, map only
arrowhead -EarrowType +
arrowhead +EarrowType normal
arrowsize +
arrowsize Edouble1.00.0
arrowtail -EarrowType +
arrowtail +EarrowType normal
aspect -GaspectType +
aspect +GaspectType dot only
bb -Grect +
bb +Grect write only
bgcolor -GCcolor +
bgcolor +GCcolor <none>
center -Gbool +
center +Gbool false
charset +
charset Gstring"UTF-8"
clusterrank -GclusterMode +
clusterrank +GclusterMode localdot only
color -ENCcolor -
colorList +
color +ENCcolor +
colorList 		black
colorscheme +
colorscheme ENCGstring""
comment +
comment ENGstring""
compound -Gbool +
compound +Gbool falsedot only
concentrate -Gbool +
concentrate +Gbool false
constraint -Ebool +
constraint +Ebool truedot only
decorate -Ebool +
decorate +Ebool false
defaultdist +
defaultdist Gdouble1+(avg. len)*sqrt(|V|)epsilonneato only
dim +
dim Gint22sfdp, fdp, neato only
dimen +
dimen Gint22sfdp, fdp, neato only
dir -EdirType +
dir +EdirType forward(directed)
none(undirected)
diredgeconstraints -Gstring
bool +
diredgeconstraints +Gstring
bool 		falseneato only
distortion +
distortion Ndouble0.0-100.0
dpi +
dpi Gdouble96.0
0.0		svg, bitmap output only
edgeURL -EescString +
edgeURL +EescString ""svg, map only
edgehref -EescString +
edgehref +EescString ""svg, map only
edgetarget -EescString +
edgetarget +EescString <none>svg, map only
edgetooltip -EescString +
edgetooltip +EescString ""svg, cmap only
epsilon +
epsilon Gdouble.0001 * # nodes(mode == KK)
.0001(mode == major)		neato only
esep -Gdouble
pointf +
esep +Gdouble
pointf 		+3not dot
fillcolor -NCcolor +
fillcolor +NCcolor lightgrey(nodes)
black(clusters)
fixedsize -Nbool +
fixedsize +Nbool false
fontcolor -ENGCcolor +
fontcolor +ENGCcolor black
fontname +
fontname ENGCstring"Times-Roman"
fontnames +
fontnames Gstring""svg only
fontpath +
fontpath Gstringsystem-dependent
fontsize +
fontsize ENGCdouble14.01.0
group +
group Nstring""dot only
headURL -EescString +
headURL +EescString ""svg, map only
headclip -Ebool +
headclip +Ebool true
headhref -EescString +
headhref +EescString ""svg, map only
headlabel -ElblString +
headlabel +ElblString ""
headport -EportPos +
headport +EportPos center
headtarget -EescString +
headtarget +EescString <none>svg, map only
headtooltip -EescString +
headtooltip +EescString ""svg, cmap only
height +
height Ndouble0.50.02
href -GCNEescString +
href +GCNEescString ""svg, postscript, map only
id -GNEescString +
id +GNEescString ""svg, postscript, map only
image +
image Nstring""
imagescale -Nbool +
imagescale +Nbool
string		false
label -ENGClblString +
label +ENGClblString "\N" (nodes)
"" (otherwise)
labelURL -EescString +
labelURL +EescString ""svg, map only
label_scheme +
label_scheme Gint00sfdp only
labelangle +
labelangle Edouble-25.0-180.0
labeldistance +
labeldistance Edouble1.00.0
labelfloat -Ebool +
labelfloat +Ebool false
labelfontcolor -Ecolor +
labelfontcolor +Ecolor black
labelfontname +
labelfontname Estring"Times-Roman"
labelfontsize +
labelfontsize Edouble14.01.0
labelhref -EescString +
labelhref +EescString ""svg, map only
labeljust +
labeljust GCstring"c"
labelloc +
labelloc NGCstring"t"(clusters)
"b"(root graphs)
"c"(nodes)
labeltarget -EescString +
labeltarget +EescString <none>svg, map only
labeltooltip -EescString +
labeltooltip +EescString ""svg, cmap only
landscape -Gbool +
landscape +Gbool false
layer -ENlayerRange +
layer +ENlayerRange ""
layers -GlayerList +
layers +GlayerList ""
layersep -Gstring" :\t"
layout +
layersep +Gstring" \t"
layout Gstring""
len +
len Edouble1.0(neato)
0.3(fdp)		fdp, neato only
levels +
levels GintMAXINT0.0sfdp only
levelsgap +
levelsgap Gdouble0.0neato only
lhead +
lhead Estring""dot only
lheight +
lheight GCdoublewrite only
lp -EGCpoint +
lp +EGCpoint write only
ltail +
ltail Estring""dot only
lwidth +
lwidth GCdoublewrite only
margin -NGdouble
pointf +
margin +NGdouble
pointf 		<device-dependent>
maxiter +
maxiter Gint100 * # nodes(mode == KK)
200(mode == major)
600(fdp)		fdp, neato only
mclimit +
mclimit Gdouble1.0dot only
mindist +
mindist Gdouble1.00.0circo only
minlen +
minlen Eint10dot only
mode +
mode Gstringmajor
spring		sfdp, neato only
model +
model Gstringshortpathneato only
mosek -Gbool +
mosek +Gbool falseneato only
nodesep +
nodesep Gdouble0.250.02dot only
nojustify -GCNEbool +
nojustify +GCNEbool false
normalize -Gbool +
normalize +Gbool falsenot dot
nslimit -
nslimit1 +
nslimit +
nslimit1 		Gdoubledot only
ordering +
ordering GNstring""dot only
orientation +
orientation Ndouble0.0360.0
orientation +
orientation Gstring""
outputorder -GoutputMode +
outputorder +GoutputMode breadthfirst
overlap -Gstring
bool +
overlap +Gstring
bool 		truenot dot
overlap_scaling +
overlap_scaling Gdouble-4-1.0e10prism only
pack -Gbool +
pack +Gbool
int		falsenot dot
packmode -GpackMode +
packmode +GpackMode nodenot dot
pad -Gdouble
pointf +
pad +Gdouble
pointf 		0.0555 (4 points)
page -Gdouble
pointf +
page +Gdouble
pointf
pagedir -Gpagedir +
pagedir +Gpagedir BL
pencolor -Ccolor +
pencolor +Ccolor black
penwidth +
penwidth CNEdouble1.00.0
peripheries +
peripheries NCintshape default(nodes)
1(clusters)		0
pin -Nbool +
pin +Nbool falsefdp, neato only
pos -ENpoint -
splineType +
pos +ENpoint +
splineType
quadtree -GquadType -
bool +
quadtree +GquadType +
bool 		normalsfdp only
quantum +
quantum Gdouble0.00.0
rank -SrankType +
rank +SrankType dot only
rankdir -Grankdir +
rankdir +Grankdir TBdot only
ranksep -Gdouble
doubleList +
ranksep +Gdouble
doubleList 		0.5(dot)
1.0(twopi)		0.02twopi, dot only
ratio +
ratio Gdouble
string
rects -Nrect +
rects +Nrect write only
regular -Nbool +
regular +Nbool false
remincross -Gbool +
remincross +Gbool falsedot only
repulsiveforce +
repulsiveforce Gdouble1.00.0sfdp only
resolution +
resolution Gdouble96.0
0.0		svg, bitmap output only
root -GNstring
bool +
root +GNstring
bool 		<none>(graphs)
false(nodes)		circo, twopi only
rotate +
rotate Gint0
rotation +
rotation Gdouble0sfdp only
samehead +
samehead Estring""dot only
sametail +
sametail Estring""dot only
samplepoints +
samplepoints Nint8(output)
20(overlap and image maps)
scale -Gdouble
pointf +
scale +Gdouble
pointf 		twopi only
searchsize +
searchsize Gint30dot only
sep -Gdouble
pointf +
sep +Gdouble
pointf 		+4not dot
shape -Nshape +
shape +Nshape ellipse
shapefile +
shapefile Nstring""
showboxes +
showboxes ENGint00dot only
sides +
sides Nint40
size -Gdouble
pointf +
size +Gdouble
pointf
skew +
skew Ndouble0.0-100.0
smoothing -GsmoothType +
smoothing +GsmoothType "none"sfdp only
sortv +
sortv GCNint00
splines -Gbool +
splines +Gbool
string
start -GstartType +
start +GstartType ""fdp, neato only
style -ENCstyle +
style +ENCstyle
stylesheet +
stylesheet Gstring""svg only
tailURL -EescString +
tailURL +EescString ""svg, map only
tailclip -Ebool +
tailclip +Ebool true
tailhref -EescString +
tailhref +EescString ""svg, map only
taillabel -ElblString +
taillabel +ElblString ""
tailport -EportPos +
tailport +EportPos center
tailtarget -EescString +
tailtarget +EescString <none>svg, map only
tailtooltip -EescString +
tailtooltip +EescString ""svg, cmap only
target -ENGCescString +
target +ENGCescString
string		<none>svg, map only
tooltip -NECescString +
tooltip +NECescString ""svg, cmap only
truecolor -Gbool +
truecolor +Gbool bitmap output only
vertices -NpointfList +
vertices +NpointfList write only
viewport -GviewPort +
viewport +GviewPort ""
voro_margin +
voro_margin Gdouble0.050.0not dot
weight +
weight Edouble1.00(dot)
1(neato,fdp,sfdp)
width +
width Ndouble0.750.01
z +
z Ndouble0.0-MAXFLOAT
-1000

Attribute Descriptions

-
Damping +
Damping
Factor damping force motions. On each iteration, a nodes movement is limited to this factor of its potential motion. By being less than 1.0, the system tends to ``cool'', thereby preventing cycling. -
K +
K
Spring constant used in virtual physical model. It roughly corresponds to an ideal edge length (in inches), in that increasing K tends to increase the distance between nodes. - Note that the edge attribute len can be used to + Note that the edge attribute len can be used to override this value for adjacent nodes. -
URL +
URL
Hyperlinks incorporated into device-dependent output. At present, used in ps2, cmap, i*map and svg formats. For all these formats, URLs can be attached to nodes, edges and @@ -513,29 +513,29 @@ This field indicates which graph component uses the attribute. If the edge has a label, this will also be active. Finally, if the edge has a head or tail label, this will also be active.

- Note that, for edges, the attributes headURL, - tailURL, labelURL and - edgeURL allow control of various parts of an + Note that, for edges, the attributes headURL, + tailURL, labelURL and + edgeURL allow control of various parts of an edge. Also note that, if active areas of two edges overlap, it is unspecified which area dominates. -

arrowhead +
arrowhead
Style of arrowhead on the head node of an edge. - This will only appear if the dir attribute + This will only appear if the dir attribute is "forward" or "both". - See the limitation. + See the limitation. -
arrowsize +
arrowsize
Multiplicative scale factor for arrowheads. -
arrowtail +
arrowtail
Style of arrowhead on the tail node of an edge. - This will only appear if the dir attribute + This will only appear if the dir attribute is "back" or "both". - See the limitation. + See the limitation. -
aspect +
aspect
Target aspect ratio (width of the layout divided by the height) of the graph drawing. If unset, dot minimizes the total edge length. For certain graphs, like those with large fan-in or fan-out, this can @@ -554,15 +554,15 @@ This field indicates which graph component uses the attribute. ccomps -x | dot | gvpack | neato -n2 to get a similar effect. -
bb +
bb
Bounding box of drawing in points. -
bgcolor +
bgcolor
When attached to the root graph, this color is used as the background for entire canvas. When a cluster attribute, it is used as the initial background for the cluster. If a cluster has a filled - style, the - cluster's fillcolor will overlay the + style, the + cluster's fillcolor will overlay the background color.

If no background color is specified for the root graph, no graphics @@ -574,10 +574,10 @@ This field indicates which graph component uses the attribute. If this effect is not desired, and you only want to set bits explicitly assigned in drawing the graph, set bgcolor="transparent". -

center +
center
If true, the drawing is centered in the output canvas. -
charset +
charset
Specifies the character encoding used when interpreting string input as a text label. The default value is "UTF-8". The other legal value is "iso-8859-1" or, @@ -586,23 +586,23 @@ This field indicates which graph component uses the attribute. Note that if the character encoding used in the input does not match the charset value, the resulting output may be very strange. -
clusterrank +
clusterrank
Mode used for handling clusters. If clusterrank is "local", a subgraph whose name begins with "cluster" is given special treatment. The subgraph is laid out separately, and then integrated as a unit into its parent graph, with a bounding rectangle drawn about it. - If the cluster has a label parameter, this label + If the cluster has a label parameter, this label is displayed within the rectangle. Note also that there can be clusters within clusters. At present, the modes "global" and "none" appear to be identical, both turning off the special cluster processing. -
color +
color
Basic drawing color for graphics, not text. For the latter, use the - fontcolor attribute. + fontcolor attribute.

For edges, the value - can either be a single color or a colorList. + can either be a single color or a colorList. In the latter case, the edge is drawn using parallel splines or lines, one for each color in the list, in the order given. The head arrow, if any, is drawn using the first color in the list, @@ -617,30 +617,30 @@ This field indicates which graph component uses the attribute. yields
-

colorscheme +
colorscheme
This attribute specifies a color scheme namespace. If defined, it specifies the context for interpreting color names. In particular, if a - color value has form "xxx" or "//xxx", + color value has form "xxx" or "//xxx", then the color xxx will be evaluated according to the current color scheme. If no color scheme is set, the standard X11 naming is used. For example, if colorscheme=bugn9, then color=7 is interpreted as "/bugn9/7". -
comment +
comment
Comments are inserted into output. Device-dependent -
compound -
If true, allow edges between clusters. (See lhead - and ltail below.) +
compound +
If true, allow edges between clusters. (See lhead + and ltail below.) -
concentrate +
concentrate
If true, use edge concentrators. This merges multiedges into a single edge and causes partially parallel edges to share part of their paths. The latter feature is not yet available outside of dot. -
constraint +
constraint
If false, the edge is not used in ranking the nodes. For example, in the graph 
@@ -655,20 +655,20 @@ This field indicates which graph component uses the attribute.
   yielding the graph:

   
 
-
decorate
+
decorate
 
  If true, attach edge label to edge by a 2-segment
   polyline, underlining the label, then going to the closest point of spline.
 
-
defaultdist
+
defaultdist
 
  This specifies the distance between nodes in separate connected
   components. If set too small, connected components may overlap.
-  Only applicable if pack=false.
+  Only applicable if pack=false.
 
-
dim
+
dim
 
  Set the number of dimensions used for the layout. The maximum value
   allowed is 10.
 
-
dimen
+
dimen
 
  Set the number of dimensions used for rendering. 
   The maximum value allowed is 10.
   If both dimen and dim are set, the latter specifies
@@ -683,76 +683,76 @@ This field indicates which graph component uses the attribute.
   All other coordinates will be 2D and, at best, will reflect a projection
   of a higher-dimensional point onto the plane.
 
-
dir
+
dir
 
  Set edge type for drawing arrowheads. This indicates which ends of the
   edge should be decorated with an arrowhead. The actual style of the
-  arrowhead can be specified using the arrowhead
-  and arrowtail attributes.
-  See limitation.
+  arrowhead can be specified using the arrowhead
+  and arrowtail attributes.
+  See limitation.
 
-
diredgeconstraints
-
  Only valid when mode="ipsep".
+
diredgeconstraints
+
  Only valid when mode="ipsep".
   If true, constraints are generated for each edge in the largest (heuristic)
   directed acyclic subgraph such that the edge must point downwards.
   If "hier", generates level constraints similar to those used with
-  mode="hier". The main difference is that, in the latter
+  mode="hier". The main difference is that, in the latter
   case, only these constraints are involved, so a faster solver can be used.
 
-
distortion
-
  Distortion factor for shape=polygon.
+
distortion
+
  Distortion factor for shape=polygon.
   Positive values cause top part to
   be larger than bottom; negative values do the opposite.
 
-
dpi
+
dpi
 
  This specifies the expected number of pixels per inch on a display device.
   For bitmap output, this guarantees that text rendering will be
   done more accurately, both in size and in placement. For SVG output,
   it is used to guarantee that the dimensions in the output correspond to
   the correct number of points or inches.
 
-
edgeURL
+
edgeURL
 
  If edgeURL is defined, this is the link used for the non-label
-  parts of an edge. This value overrides any URL
+  parts of an edge. This value overrides any URL
   defined for the edge.
   Also, this value is used near the head or tail node unless overridden
-  by a headURL or tailURL value,
+  by a headURL or tailURL value,
   respectively.
-  See limitation.
+  See limitation.
 
-
edgehref
-
  Synonym for edgeURL.
+
edgehref
+
  Synonym for edgeURL.
 
-
edgetarget
-
  If the edge has a URL or edgeURL
+
edgetarget
+
  If the edge has a URL or edgeURL
   attribute, this attribute determines which window of the
   browser is used
   for the URL attached to the non-label part of the edge.
   Setting it to "_graphviz" will open a new window if it
   doesn't already exist, or reuse it if it does.
-  If undefined, the value of the target is used.
+  If undefined, the value of the target is used.
 
-
edgetooltip
+
edgetooltip
 
  Tooltip annotation attached to the non-label part of an edge.
-  This is used only if the edge has a URL
-  or edgeURL attribute.
+  This is used only if the edge has a URL
+  or edgeURL attribute.
 
-
epsilon
+
epsilon
 
  Terminating condition. If the length squared of all energy gradients are
   < epsilon, the algorithm stops.
 
-
esep
+
esep
 
  Margin used around polygons for purposes of spline edge routing.
-  The interpretation is the same as given for sep.
-  This should normally be strictly less than sep.
+  The interpretation is the same as given for sep.
+  This should normally be strictly less than sep.
 
-
fillcolor
+
fillcolor
 
  Color used to fill the background of a node or cluster
-  assuming style=filled.
-  If fillcolor is not defined, color is
+  assuming style=filled.
+  If fillcolor is not defined, color is
   used. (For clusters, if color is not defined,
-  bgcolor is used.) If this is not defined,
+  bgcolor is used.) If this is not defined,
   the default is used, except for
-  shape=point or when the output
+  shape=point or when the output
   format is MIF,
   which use black by default.
   

@@ -760,16 +760,16 @@ This field indicates which graph component uses the attribute.
   Thus, if the root graph has defined a fillcolor, this will override a
   color or bgcolor attribute set for the cluster.
 
-
fixedsize
+
fixedsize
 
  If true, the node size is specified by the values of the
-  width
-  and height attributes only
+  width
+  and height attributes only
   and is not expanded to contain the text label.
 
-
fontcolor
+
fontcolor
 
  Color used for text.
 
-
fontname
+
fontname
 
  Font used for text. This very much depends on the output format and, for
   non-bitmap output such as PostScript or SVG, the availability of the font
   when the graph is displayed or printed. As such, it is best to rely on
@@ -777,7 +777,7 @@ This field indicates which graph component uses the attribute.
   Courier.
   

   If Graphviz was built using the
-  fontconfig library, the latter library
+  fontconfig library, the latter library
   will be used to search for the font. However, if the fontname string
   contains a slash character "/", it is treated as a pathname for the font
   file, though font lookup will append the usual font suffixes.
@@ -787,10 +787,10 @@ This field indicates which graph component uses the attribute.
   If you specify fontname=schlbk, the tool will look for a
   file named  schlbk.ttf or schlbk.pfa or schlbk.pfb
   in one of the directories specified by
-  the fontpath attribute.
+  the fontpath attribute.
   The lookup does support various aliases for the common fonts.
 
-
fontnames
+
fontnames
 
  Allows user control of how basic fontnames are represented in SVG output.
   If fontnames is undefined or "svg",
   the output will try to use known SVG fontnames. For example, the
@@ -804,7 +804,7 @@ This field indicates which graph component uses the attribute.
   "Nimbus Roman No9 L". These last two options are useful
   with SVG viewers that support these richer fontname spaces.
 
-
fontpath
+
fontpath
 
  Directory list used by libgd to search for bitmap fonts if Graphviz
   was not built with the fontconfig library.
   If fontpath is not set, the environment
@@ -813,54 +813,54 @@ This field indicates which graph component uses the attribute.
   If not set, libgd uses its compiled-in font path.
   Note that fontpath is an attribute of the root graph.
 
-
fontsize
+
fontsize
 
  Font size, in points, used for text.
 
-
group
+
group
 
  If the end points of an edge belong to the same group, i.e., have the
   same group attribute, parameters are set to avoid crossings and keep
   the edges straight.
 
-
headURL
+
headURL
 
  If headURL is defined, it is
   output as part of the head label of the edge.
   Also, this value is used near the head node, overriding any
-  URL value.
-  See limitation.
+  URL value.
+  See limitation.
 
-
headclip
+
headclip
 
  If true, the head of an edge is clipped to the boundary of the head node;
   otherwise, the end of the edge goes to the center of the node, or the
   center of a port, if applicable.
 
-
headhref
-
  Synonym for headURL.
+
headhref
+
  Synonym for headURL.
 
-
headlabel
+
headlabel
 
  Text label to be placed near head of edge.
-  See limitation.
+  See limitation.
 
-
headport
+
headport
 
  Indicates where on the head node to attach the head of the edge.
   In the default case, the edge is aimed towards the center of the node,
   and then clipped at the node boundary.
-  See limitation.
+  See limitation.
 
-
headtarget
-
  If the edge has a headURL,
+
headtarget
+
  If the edge has a headURL,
   this attribute determines 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 undefined, the value of the target is used.
+  If undefined, the value of the target is used.
 
-
headtooltip
+
headtooltip
 
  Tooltip annotation attached to the head of an edge. This is used only
-  if the edge has a headURL attribute.
+  if the edge has a headURL attribute.
 
-
height
+
height
 
  Height of node, in inches. This is taken as the initial, minimum height
-  of the node. If fixedsize is true, this
+  of the node. If fixedsize is true, this
   will be the final height of the node. Otherwise, if the node label
   requires more height to fit, the node's height will be increased to
   contain the label. Note also that, if the output format is dot, the
@@ -874,10 +874,10 @@ This field indicates which graph component uses the attribute.
   If neither is set explicitly, the minimum of the two default values
   is used.
 
-
href
-
  Synonym for URL.
+
href
+
  Synonym for URL.
 
-
id
+
id
 
  Allows the graph author to provide an id for graph objects which is to be included in the output.
   Normal "N", "E", "G" substitutions are applied.
   If provided, it is the reponsiblity of the provider to keep
@@ -891,26 +891,26 @@ This field indicates which graph component uses the attribute.
   internally generated attributes. By making these distinct, the user
   can include multiple image maps in the same document.
 
-
image
+
image
 
  Gives the name of a file containing an image to be displayed inside
   a node. The image file must be in one of the recognized 
-  formats,
+  formats,
   typically JPEG, PNG, GIF or Postscript, and be able to be converted
   into the desired output format.
   

-  Unlike with the shapefile attribute,
+  Unlike with the shapefile attribute,
   the image is treated as node
   content rather than the entire node. In particular, an image can
   be contained in a node of any shape, not just a rectangle.
 
-
imagescale
+
imagescale
 
  Attribute controlling how an image fills its
   containing node. In general, the image is given its natural size,
-  (cf. dpi),
+  (cf. dpi),
   and the node size is made large enough to contain its image, its
   label, its margin, and its peripheries.
   Its width and height will also be at least as large as its
-  minimum width and height.
+  minimum width and height.
   If, however, fixedsize=true,
   the width and height attributes specify the exact size of the node.
   

@@ -933,18 +933,18 @@ This field indicates which graph component uses the attribute.
   expansion, if  imagescale=true, width and height are
   scaled uniformly.
 
-
label
+
label
 
  Text label attached to objects.
-  If a node's shape is record, then the label can
-  have a special format
+  If a node's shape is record, then the label can
+  have a special format
   which describes the record layout.
 
-
labelURL
+
labelURL
 
  If labelURL is defined, this is the link used for the label
-  of an edge. This value overrides any URL
+  of an edge. This value overrides any URL
   defined for the edge.
 
-
label_scheme
+
label_scheme
 
  The value indicates
   whether to treat a node whose name has the form |edgelabel|* as a special node representing an edge label. 
   The default (0) produces no effect.
@@ -953,8 +953,8 @@ This field indicates which graph component uses the attribute.
   close to the old center of its neighbor. Finally, a value of 3 invokes a two-step process of overlap 
   removal and straightening.
 
-
labelangle
-
  This, along with labeldistance, determine
+
labelangle
+
  This, along with labeldistance, determine
   where the
   headlabel (taillabel) are placed with respect to the head (tail)
   in polar coordinates. The origin in the coordinate system is
@@ -966,32 +966,32 @@ This field indicates which graph component uses the attribute.
   with positive angles moving counterclockwise and negative angles
   moving clockwise.
 
-
labeldistance
+
labeldistance
 
  Multiplicative scaling factor adjusting the distance that
   the headlabel(taillabel) is from the head(tail) node.
-  The default distance is 10 points. See labelangle
+  The default distance is 10 points. See labelangle
   for more details.
 
-
labelfloat
+
labelfloat
 
  If true, allows edge labels to be less constrained in position.
   In particular, it may appear on top of other edges.
 
-
labelfontcolor
+
labelfontcolor
 
  Color used for headlabel and taillabel.
   If not set, defaults to edge's fontcolor.
 
-
labelfontname
+
labelfontname
 
  Font used for headlabel and taillabel.
   If not set, defaults to edge's fontname.
 
-
labelfontsize
+
labelfontsize
 
  Font size, in points, used for headlabel and taillabel.
   If not set, defaults to edge's fontsize.
 
-
labelhref
-
  Synonym for labelURL.
+
labelhref
+
  Synonym for labelURL.
 
-
labeljust
+
labeljust
 
  Justification for cluster labels. If "r", the label
   is right-justified within bounding rectangle; if "l", left-justified;
   else the label is centered.
@@ -999,7 +999,7 @@ This field indicates which graph component uses the attribute.
   the root graph sets labeljust to "l", the subgraph inherits
   this value.
 
-
labelloc
+
labelloc
 
  Vertical placement of labels for nodes, root graphs and clusters.
   

   For graphs and clusters, only "t" and "b" are allowed, corresponding
@@ -1016,39 +1016,39 @@ This field indicates which graph component uses the attribute.
   with the top, centered, or aligned with the bottom of the node, respectively.
   In the default case, the label is vertically centered.
 
-
labeltarget
-
  If the edge has a URL or labelURL
+
labeltarget
+
  If the edge has a URL or labelURL
   attribute, this attribute determines which window of the
   browser is used
   for the URL attached to the label.
   Setting it to "_graphviz" will open a new window if it
   doesn't already exist, or reuse it if it does.
-  If undefined, the value of the target is used.
+  If undefined, the value of the target is used.
 
-
labeltooltip
+
labeltooltip
 
  Tooltip annotation attached to label of an edge.
-  This is used only if the edge has a URL
-  or labelURL attribute.
+  This is used only if the edge has a URL
+  or labelURL attribute.
 
-
landscape
+
landscape
 
  If true, the graph is rendered in landscape mode. Synonymous with
-  rotate=90 or
-  orientation=landscape.
+  rotate=90 or
+  orientation=landscape.
 
-
layer
+
layer
 
  Specifies layers in which the node or edge is present.
 
-
layers
+
layers
 
  Specifies a linearly ordered list of layer names attached to the graph
   The graph is then output in separate layers. Only those components
   belonging to the current output layer appear. For more information,
   see the page How to use drawing layers (overlays).
 
-
layersep
+
layersep
 
  Specifies the separator characters used to split the
-  layers attribute into a list of layer names.
+  layers attribute into a list of layer names.
 
-
layout
+
layout
 
  Specifies the name of the layout algorithm to use, such as "dot"
   or "neato". Normally, graphs should be kept independent of a type of
   layout. In some cases, however, it can be convenient to embed the type
@@ -1057,47 +1057,47 @@ This field indicates which graph component uses the attribute.
   associated layout algorithm was.
   

   This attribute takes precedence over 
-  the -K flag 
+  the -K flag 
   or the actual command name used.
 
-
len
+
len
 
  Preferred edge length, in inches.
 
-
levels
+
levels
 
  Number of levels allowed in the multilevel scheme.
 
-
levelsgap
+
levelsgap
 
  Specifies strictness of level constraints in neato
-  when mode="ipsep" or "hier".
+  when mode="ipsep" or "hier".
   Larger positive values mean stricter constraints, which demand more
   separation between levels. On the other hand, negative values will relax
   the constraints by allowing some overlap between the levels.
 
-
lhead
-
  Logical head of an edge. When compound is true,
+
lhead
+
  Logical head of an edge. When compound is true,
   if lhead is defined and is the name of a cluster containing
   the real head,
   the edge is clipped to the boundary of the cluster.
-  See limitation.
+  See limitation.
 
-
lheight
+
lheight
 
  Height of graph or cluster label, in inches.
 
-
lp
+
lp
 
  Label position, in points.
   The position indicates the center of the label.
 
-
ltail
-
  Logical tail of an edge. When compound is true,
+
ltail
+
  Logical tail of an edge. When compound is true,
   if ltail is defined and is the name of a cluster
   containing the real tail,
   the edge is clipped to the boundary of the cluster.
-  See limitation.
+  See limitation.
 
-
lwidth
+
lwidth
 
  Width of graph or cluster label, in inches.
 
-
margin
+
margin
 
  For graphs, this sets x and y margins of canvas, in inches. If the margin
   is a single double, both margins are set equal to the given value.
   

@@ -1105,28 +1105,28 @@ This field indicates which graph component uses the attribute.
   left around the drawing. It basically corresponds to a translation of
   drawing, as would be necessary to center a drawing on a page. Nothing
   is actually drawn in the margin. To actually extend the background of
-  a drawing, see the pad attribute.
+  a drawing, see the pad attribute.
   

   For nodes, this attribute specifies space left around the node's label.
   By default, the value is 0.11,0.055.
 
-
maxiter
+
maxiter
 
  Sets the number of iterations used.
 
-
mclimit
+
mclimit
 
  Multiplicative scale factor used to alter the MinQuit (default = 8)
   and MaxIter (default = 24) parameters used during crossing
   minimization. These correspond to the
   number of tries without improvement before quitting and the
   maximum number of iterations in each pass.
 
-
mindist
+
mindist
 
  Specifies the minimum separation between all nodes.
 
-
minlen
+
minlen
 
  Minimum edge length (rank difference between head and tail).
 
-
mode
+
mode
 
  Technique for optimizing the layout. For neato, if mode is "major",
   neato uses stress majorization. If mode is "KK",
   neato uses a version of the gradient descent method. The only advantage
@@ -1137,19 +1137,19 @@ This field indicates which graph component uses the attribute.
   There are two experimental modes in neato, "hier", which adds a top-down
   directionality similar to the layout used in dot, and "ipsep", which
   allows the graph to specify minimum vertical and horizontal distances
-  between nodes. (See the sep attribute.)
+  between nodes. (See the sep attribute.)
   

   For sfdp, the default mode is "spring", which corresponds to using
   a spring-electrical model. Setting mode to "maxent" causes a similar
   model to be run but one that also takes into account edge lengths specified by a the
   "len" attribute.
 
-
model
+
model
 
  This value specifies how the distance matrix is computed for the input
   graph. The distance matrix specifies the ideal distance between every
   pair of nodes. neato attemps to find a layout which best achieves
   these distances. By default, it uses the length of the shortest path,
-  where the length of each edge is given by its len
+  where the length of each edge is given by its len
   attribute. If model is "circuit", neato uses the
   circuit resistance
   model to compute the distances. This tends to emphasize clusters. If
@@ -1159,23 +1159,23 @@ This field indicates which graph component uses the attribute.
   to separate nodes with high degree.
   

   For more control of distances, one can use model=mds. In this
-  case, the len of an edge is used as the ideal distance
+  case, the len of an edge is used as the ideal distance
   between its vertices. A shortest path calculation is only used for
   pairs of nodes not connected by an edge. Thus, by supplying a complete
   graph, the input can specify all of the relevant distances.
 
-
mosek
+
mosek
 
  If Graphviz is built with MOSEK defined, mode=ipsep and mosek=true,
   the Mosek software (www.mosek.com) is use to solve the ipsep constraints.
 
-
nodesep
+
nodesep
 
  Minimum space between two adjacent nodes in the same rank, in inches.
 
-
nojustify
+
nojustify
 
  By default, the justification of multi-line labels is done within the
   largest context that makes sense. Thus, in the label of a polygonal
   node, a left-justified line will align with the left side of the node
-  (shifted by the prescribed margin).
+  (shifted by the prescribed margin).
   In record nodes, left-justified
   line will line up with the left side of the enclosing column of fields.
   If nojustify is "true", multi-line labels will be justified
@@ -1184,20 +1184,20 @@ This field indicates which graph component uses the attribute.
   the second will align with the left-most character in the first line,
   regardless of  how large the node might be.
 
-
normalize
+
normalize
 
  If set, normalize coordinates of final
   layout so that the first point is at the origin, and then rotate the
   layout so that the first edge is horizontal.
 
-
nslimit
-,
nslimit1
+
nslimit
+,
nslimit1
 
  Used to set number of iterations in
   network simplex applications. nslimit is used in
   computing node x coordinates, nslimit1 for ranking nodes.
   If defined, # iterations =  nslimit(1) * # nodes;
   otherwise,  # iterations = MAXINT.
 
-
ordering
+
ordering
 
  If the value of the attribute is "out", then
   the outedges of a node, that is, edges with the node as its tail node,
   must appear
@@ -1211,19 +1211,19 @@ This field indicates which graph component uses the attribute.
   in the graph or subgraph. Note that the graph attribute takes
   precedence over the node attribute.
 
-
orientation
+
orientation
 
  Angle, in degrees, used to rotate polygon node shapes. For any number of polygon sides, 0 degrees rotation results in a flat base.
 
-
orientation
+
orientation
 
  If "[lL]*", set graph orientation to landscape
-  Used only if rotate is not defined.
+  Used only if rotate is not defined.
 
-
outputorder
+
outputorder
 
  Specify order in which nodes and edges are drawn.
 
-
overlap
+
overlap
 
  Determines if and how node overlaps should be removed. Nodes are first
-  enlarged using the sep attribute.
+  enlarged using the sep attribute.
   If "true" , overlaps are retained.
   If the value is "scale", overlaps are removed by uniformly scaling in x and y.
   If the value converts to "false", and it is available, Prism, a proximity graph-based algorithm, is
@@ -1231,7 +1231,7 @@ This field indicates which graph component uses the attribute.
   This can also be invoked explicitly with "overlap=prism".
   This technique starts with a
   small scaling up, controlled by the 
-  overlap_scaling attribute,
+  overlap_scaling attribute,
   which can remove a significant portion of the overlap.
   The prism option also accepts an optional non-negative integer suffix.
   This can be used to control the number of attempts made at overlap
@@ -1268,7 +1268,7 @@ This field indicates which graph component uses the attribute.
   to the previous four, except only pseudo-orthogonal ordering is
   enforced.
   

-  If the layout is done by neato with mode="ipsep",
+  If the layout is done by neato with mode="ipsep",
   then one can use overlap=ipsep.
   In this case, the overlap removal constraints are
   incorporated into the layout algorithm itself.
@@ -1295,7 +1295,7 @@ This field indicates which graph component uses the attribute.
   This is not quite true for the "porth*" cases. For these, orthogonal
   ordering is only preserved among nodes related by an edge.
 
-
overlap_scaling
+
overlap_scaling
 
  When overlap=prism, the layout is scaled by this factor, thereby
   removing a fair amount of node overlap, and making node overlap removal
   faster and better able to retain the graph's shape.
@@ -1306,7 +1306,7 @@ This field indicates which graph component uses the attribute.
   overlap_scaling.
   If overlap_scaling is zero, no scaling is done.
 
-
pack
+
pack
 
  This is true if the value of pack is "true" (case-insensitive) or a
   non-negative integer. If true, each connected component of the graph is
   laid out separately, and then the graphs are packed together.
@@ -1315,18 +1315,18 @@ This field indicates which graph component uses the attribute.
   a margin around each part; otherwise, a default margin of 8 is used.
   If pack is interpreted as false, the entire graph is laid out together.
   The granularity and method of packing is influenced by the
-  packmode attribute.
+  packmode attribute.
   

   For layouts which always do packing, such a twopi, the pack
   attribute is just used to set the margin.
 
-
packmode
+
packmode
 
  This indicates how connected components should be packed
-  (cf. packMode). Note that defining
+  (cf. packMode). Note that defining
   packmode will automatically turn on packing as though one had
   set pack=true.
 
-
pad
+
pad
 
  The pad attribute specifies how much, in inches, to extend the
   drawing area around the minimal area needed to draw the graph.
   If the pad is a single double, both the x and y pad values are set
@@ -1337,7 +1337,7 @@ This field indicates which graph component uses the attribute.
   a background color is used, to avoid having nodes and edges abutting
   the boundary of the drawn region.
 
-
page
+
page
 
  Width and height of output pages, in inches. If only a single value
   is given, this is used for both the width and height.
   

@@ -1346,29 +1346,29 @@ This field indicates which graph component uses the attribute.
   the specified page size is overlaid on the layout, with origins
   aligned in the lower-left corner, thereby partitioning the layout
   into pages. The pages are then produced one at a time, in
-  pagedir order.
+  pagedir order.
   

   At present, this only works for PostScript output. For other types of
   output, one should use another tool to split the output into multiple
-  output files. Or use the viewport to generate
+  output files. Or use the viewport to generate
   multiple files.
 
-
pagedir
-
  If the page attribute is set and applicable,
+
pagedir
+
  If the page attribute is set and applicable,
   this attribute specifies the order in which the pages are emitted.
   This is limited to one of the 8 row or column major orders.
 
-
pencolor
+
pencolor
 
  Color used to draw the bounding box around a cluster.
-  If pencolor is not defined, color is
-  used. If this is not defined, bgcolor is used.
+  If pencolor is not defined, color is
+  used. If this is not defined, bgcolor is used.
   If this is not defined, the default is used.
   

   Note that a cluster inherits the root graph's attributes if defined.
   Thus, if the root graph has defined a pencolor, this will override a
   color or bgcolor attribute set for the cluster.
 
-
penwidth
+
penwidth
 
  Specifies the width of the pen, in points, used to draw lines and curves,
   including the boundaries of edges and clusters. The value is inherited
   by subclusters.
@@ -1376,22 +1376,22 @@ This field indicates which graph component uses the attribute.
   

   Previous to 31 January 2008, the effect of penwidth=W
   was achieved by including setlinewidth(W)
-  as part of a style specification.
+  as part of a style specification.
   If both are used, penwidth will be used.
 
-
peripheries
+
peripheries
 
  Set number of peripheries used in polygonal shapes and cluster
   boundaries. Note that
-  user-defined shapes are treated as a
+  user-defined shapes are treated as a
   form of box shape, so the default
   peripheries value is 1 and the user-defined shape will be drawn in
   a bounding rectangle. Setting peripheries=0 will turn this off.
   Also, 1 is the maximum peripheries value for clusters.
 
-
pin
+
pin
 
  If true and the node has a pos attribute on input, neato or fdp prevents the
   node from moving from the input position. This property can also be specified
-  in the pos attribute itself (cf. the point type).
+  in the pos attribute itself (cf. the point type).
   

   Note: Due to an artifact of the implementation, final coordinates
   are translated to the origin. Thus, if you look at the output coordinates
@@ -1401,25 +1401,25 @@ This field indicates which graph component uses the attribute.
   difference between the old and new coordinates will give the translation,
   which can then be subtracted from all of the appropriate coordinates.
 
-
pos
+
pos
 
  Position of node, or spline control points.
   For nodes, the position indicates the center of the node.
   On output, the coordinates are in points.
   

   In neato and fdp, pos can be used to set the initial position of a node.
   By default, the coordinates are assumed to be in inches. However, the
-  -s command line flag can be used to specify
+  -s command line flag can be used to specify
   different units. As the output coordinates are in points, 
   feeding the output of a graph laid out by a Graphviz program into
   neato or fdp will almost always require the -s flag.
   

-  When the -n command line flag is used with
+  When the -n command line flag is used with
   neato, it is assumed the positions have been set by one of the layout
   programs, and are therefore in points. Thus, neato -n can accept
   input correctly without requiring a -s flag and, in fact,
   ignores any such flag.
 
-
quadtree
+
quadtree
 
  Quadtree scheme to use.
   

   A TRUE bool value corresponds to "normal";
@@ -1427,11 +1427,11 @@ This field indicates which graph component uses the attribute.
   As a slight exception to the normal interpretation of bool,
   a value of "2" corresponds to "fast".
 
-
quantum
+
quantum
 
  If quantum > 0.0, node label dimensions
   will be rounded to integral multiples of the quantum.
 
-
rank
+
rank
 
  Rank constraints on the nodes in a subgraph.
   If rank="same", all nodes are placed on the same rank.
   If rank="min", all nodes are placed on the minimum rank.
@@ -1443,15 +1443,15 @@ This field indicates which graph component uses the attribute.
   minimum rank is topmost or leftmost, and the maximum rank is bottommost
   or rightmost.)
 
-
rankdir
+
rankdir
 
  Sets direction of graph layout. For example, if rankdir="LR",
   and barring cycles, an edge T -> H; will go
   from left to right. By default, graphs are laid out from top to bottom.
   

   This attribute also has a side-effect in determining how record nodes
-  are interpreted. See record shapes.
+  are interpreted. See record shapes.
 
-
ranksep
+
ranksep
 
  In dot, this gives the desired rank separation, in inches. This is
   the minimum vertical distance between the bottom of the nodes in one
   rank and the tops of nodes in the next. If the value
@@ -1465,10 +1465,10 @@ This field indicates which graph component uses the attribute.
   radius from the first circle to the second; etc. If there are more circles than
   numbers, the last number is used as the increment for the remainder.
 
-
ratio
+
ratio
 
  Sets the aspect ratio (drawing height/drawing width) for the drawing.
   Note that this is adjusted before
-  the size attribute constraints are enforced.
+  the size attribute constraints are enforced.
   In addition, the calculations usually ignore the node sizes, so the
   final drawing size may only approximate what is desired.
   

@@ -1478,64 +1478,64 @@ This field indicates which graph component uses the attribute.
   desired ratio; if the actual ratio is greater than that desired ratio,
   the drawing width is scaled up.
   

-  If ratio = "fill" and the size
+  If ratio = "fill" and the size
   attribute is set, node positions are scaled, separately in both x
   and y, so that the final drawing exactly fills the specified size.
-  If both size values exceed the width
+  If both size values exceed the width
   and height of the drawing, then both coordinate values of each
   node are scaled up accordingly. However, if either size dimension
   is smaller than the corresponding dimension in the drawing, one
   dimension is scaled up so that the final drawing has the same aspect
-  ratio as specified by size. 
+  ratio as specified by size. 
   Then, when rendered, the layout will be
   scaled down uniformly in both dimensions to fit the given
-  size, which may cause nodes and text
+  size, which may cause nodes and text
   to shrink as well. This may not be what the user
   wants, but it avoids the hard problem of how to reposition the
   nodes in an acceptable fashion to reduce the drawing size.
   

-  If ratio = "compress" and the size
+  If ratio = "compress" and the size
   attribute is set, dot attempts to compress the initial layout to fit
   in the given size. This achieves a tighter packing of nodes but
   reduces the balance and symmetry. This feature only works in dot.
   

-  If ratio = "expand", the size
+  If ratio = "expand", the size
   attribute is set, and both the width and the height of the graph are
-  less than the value in  size, node positions are scaled
+  less than the value in  size, node positions are scaled
   uniformly until at least
-  one dimension fits size exactly.
-  Note that this is distinct from using size as the
+  one dimension fits size exactly.
+  Note that this is distinct from using size as the
   desired size, as here the drawing is expanded before edges are generated and
   all node and text sizes remain unchanged.
   

-  If ratio = "auto", the page
+  If ratio = "auto", the page
   attribute is set and the graph cannot be drawn on a single page,
-  then size is set to an ``ideal'' value.
+  then size is set to an ``ideal'' value.
   In particular, the size in a given dimension will be the smallest integral
   multiple of the page size in that dimension which is at least half the
   current size. The two dimensions are then scaled independently to the
   new size. This feature only works in dot.
 
-
rects
+
rects
 
  Rectangles for fields of records, in points.
 
-
regular
+
regular
 
  If true, force polygon to be regular, i.e., the vertices of the
   polygon will lie on a circle whose center is the center of the node.
 
-
remincross
+
remincross
 
  If true and there are multiple clusters, run cross
   minimization a second time.
 
-
repulsiveforce
+
repulsiveforce
 
  The power of the repulsive force used in an extended Fruchterman-Reingold 
   force directed model. Values larger than 1 tend to reduce 
   the warping effect at the expense of less clustering.
 
-
resolution
-
  This is a synonym for the dpi attribute.
+
resolution
+
  This is a synonym for the dpi attribute.
 
-
root
+
root
 
  This specifies nodes to be used as the center of the
   layout and the root of the generated spanning tree. As a graph attribute,
   this gives the name of the node. As a node attribute (circo only), it
@@ -1548,39 +1548,39 @@ This field indicates which graph component uses the attribute.
   If the root attribute is defined as the empty string, twopi will reset it
   to name of the node picked as the root node.
 
-
rotate
+
rotate
 
  If 90, set drawing orientation to landscape.
 
-
rotation
+
rotation
 
  Causes the final layout to be rotated counter-clockwise by the specified number of degrees.
 
-
samehead
+
samehead
 
  Edges with the same head and the same samehead value are aimed
   at the same point on the head.
-  See limitation.
+  See limitation.
 
-
sametail
+
sametail
 
  Edges with the same tail and the same sametail value are aimed
   at the same point on the tail.
-  See limitation.
+  See limitation.
 
-
samplepoints
-
  If the input graph defines the vertices
+
samplepoints
+
  If the input graph defines the vertices
   attribute, and output is dot or xdot, this gives
   the number of points used for a node whose shape is a circle or ellipse.
   It plays the same role in neato, when adjusting the layout to avoid
   overlapping nodes, and in image maps.
 
-
scale
+
scale
 
  If set, after the initial layout, twopi will scale the layout by the given factors.
   The scaling uses the root node of each component as the center of the scaling.
   If only a single number is given, this is used for both factors.
 
-
searchsize
+
searchsize
 
  During network simplex, maximum number of edges with negative cut values
   to search when looking for one with minimum cut value.
 
-
sep
+
sep
 
  Specifies margin to leave around nodes when removing node overlap.
   This guarantees a minimal non-zero distance between nodes.
   

@@ -1593,22 +1593,22 @@ This field indicates which graph component uses the attribute.
   

   If only a single number is given, this is used for both dimensions.
   

-  If unset but esep is defined, the sep values
+  If unset but esep is defined, the sep values
   will be set to the esep values divided by 0.8. 
   If esep is unset, the default value is used.
 
-
shape
+
shape
 
  Set the shape of a node.
 
-
shapefile
+
shapefile
 
  (Deprecated) If defined, shapefile specifies a file containing user-supplied node content.
-  The shape of the node is set to box.
+  The shape of the node is set to box.
   The image in the shapefile must be
   rectangular. The image formats supported as well as the precise semantics of
   how the file is used depends on the
-  output format.  For further details, see
-  Image Formats and
-  External PostScript files.
+  output format.  For further details, see
+  Image Formats and
+  External PostScript files.
   

   There is one exception to this usage.
   If shape is set to "epsf", shapefile gives
@@ -1616,17 +1616,17 @@ This field indicates which graph component uses the attribute.
   The graphics defined must be contain all of the
   node content, including any desired boundaries.
   For further details, see
-  
+  
   External PostScript files.
 
-
showboxes
+
showboxes
 
  Print guide boxes in PostScript at the beginning of
   routesplines if 1, or at the end if 2. (Debugging)
 
-
sides
-
  Number of sides if shape=polygon.
+
sides
+
  Number of sides if shape=polygon.
 
-
size
+
size
 
  Maximum width and height of drawing, in inches.
   If only a single number is given, this is used for both the width
   and the height.
@@ -1642,22 +1642,22 @@ This field indicates which graph component uses the attribute.
   least one dimension equals its dimension in size.
   

   Note that there is some interaction between the size and
-  ratio attributes.
+  ratio attributes.
 
-
skew
-
  Skew factor for shape=polygon. Positive values
+
skew
+
  Skew factor for shape=polygon. Positive values
   skew top of polygon to right; negative to left.
 
-
smoothing
+
smoothing
 
  Specifies a post-processing step used to smooth out an uneven distribution 
   of nodes.
 
-
sortv
-
  If packmode indicates an array packing, 
+
sortv
+
  If packmode indicates an array packing, 
   this attribute specifies an
   insertion order among the components, with smaller values inserted first.
 
-
splines
+
splines
 
  Controls how, and if, edges are represented. If true, edges are drawn as
   splines routed around nodes; if false, edges are drawn as line segments.
   If set to "", no edges are drawn at all.
@@ -1674,77 +1674,77 @@ This field indicates which graph component uses the attribute.
   the layout. For dot, the default is to draw edges as splines. For all
   other layouts, the default is to draw edges as line segments. Note that
   for these latter layouts, if splines="true", this
-  requires non-overlapping nodes (cf. overlap).
+  requires non-overlapping nodes (cf. overlap).
   If fdp is used for layout and splines="compound", then the edges are
   drawn to avoid clusters as well as nodes.
 
-
start
+
start
 
  Parameter used to determine the initial layout of nodes. If unset, the
   nodes are randomly placed in a unit square with
   the same seed is always used for the random number generator, so the
   initial placement is repeatable.
 
-
style
+
style
 
  Set style for node or edge. For cluster subgraph, if "filled", the
   cluster box's background is filled.
 
-
stylesheet
+
stylesheet
 
  A URL or pathname specifying an XML style sheet, used in SVG output.
 
-
tailURL
+
tailURL
 
  If tailURL is defined, it is
   output as part of the tail label of the edge.
   Also, this value is used near the tail node, overriding any
-  URL value.
-  See limitation.
+  URL value.
+  See limitation.
 
-
tailclip
+
tailclip
 
  If true, the tail of an edge is clipped to the boundary of the tail node;
   otherwise, the end of the edge goes to the center of the node, or the
   center of a port, if applicable.
 
-
tailhref
-
  Synonym for tailURL.
+
tailhref
+
  Synonym for tailURL.
 
-
taillabel
+
taillabel
 
  Text label to be placed near tail of edge.
-  See limitation.
+  See limitation.
 
-
tailport
+
tailport
 
  Indicates where on the tail node to attach the tail of the edge.
-  See limitation.
+  See limitation.
 
-
tailtarget
-
  If the edge has a tailURL,
+
tailtarget
+
  If the edge has a tailURL,
   this attribute determines 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 undefined, the value of the target is used.
+  If undefined, the value of the target is used.
 
-
tailtooltip
+
tailtooltip
 
  Tooltip annotation attached to the tail of an edge. This is used only
-  if the edge has a tailURL attribute.
+  if the edge has a tailURL attribute.
 
-
target
+
target
 
  If the object has a URL, this attribute determines which window
   of the browser is used for the URL.
-  See W3C documentation.
+  See W3C documentation.
 
-
tooltip
+
tooltip
 
  Tooltip annotation attached to the node or edge. If unset, Graphviz
-  will use the object's label if defined.
+  will use the object's label if defined.
   Note that if the label is a record specification or an HTML-like
   label, the resulting tooltip may be unhelpful. In this case, if
   tooltips will be generated, the user should set a tooltip
   attribute explicitly.
 
-
truecolor
+
truecolor
 
  If set explicitly to true or false, the value determines whether or not
   internal bitmap rendering relies on a truecolor color model or uses
   a color palette.
   If the attribute is unset, truecolor is not used
-  unless there is a shapefile property
+  unless there is a shapefile property
   for some node in the graph.
   The output model will use the input model when possible.
   

@@ -1753,35 +1753,35 @@ This field indicates which graph component uses the attribute.
   

   Usually, the only time it is necessary to specify the truecolor model
   is if the graph uses more than 256 colors.
-  However, if one uses bgcolor=transparent with
+  However, if one uses bgcolor=transparent with
   a color palette, font
   antialiasing can show up as a fuzzy white area around characters.
   Using truecolor=true avoids this problem.
 
-
vertices
+
vertices
 
  If the input graph defines this attribute, the node is polygonal,
   and output is dot or xdot, this attribute provides the
   coordinates of the vertices of the node's polygon, in inches.
   If the node is an ellipse or circle, the
-  samplepoints attribute affects
+  samplepoints attribute affects
   the output.
 
-
viewport
+
viewport
 
  Clipping window on final drawing. Note that this attribute supersedes any
-  size attribute. The width and height of the viewport specify
+  size attribute. The width and height of the viewport specify
   precisely the final size of the output. 
 
-
voro_margin
+
voro_margin
 
  Factor to scale up drawing to allow margin for expansion in
   Voronoi technique. dim' = (1+2*margin)*dim.
 
-
weight
+
weight
 
  Weight of edge. In dot, the heavier the weight, the shorter,
   straighter and more vertical the edge is.
 
-
width
+
width
 
  Width of node, in inches. This is taken as the initial, minimum width
-  of the node. If fixedsize is true, this
+  of the node. If fixedsize is true, this
   will be the final width of the node. Otherwise, if the node label
   requires more width to fit, the node's width will be increased to
   contain the label. Note also that, if the output format is dot, the
@@ -1795,16 +1795,16 @@ This field indicates which graph component uses the attribute.
   If neither is set explicitly, the minimum of the two default values
   is used.
 
-
z
-
  Deprecated:Use pos attribute, along
-  with dimen and/or dim
+
z
+
  Deprecated:Use pos attribute, along
+  with dimen and/or dim
   to specify dimensions.
   

   Provides z coordinate value for 3D layouts and displays. If the
-  graph has dim set to 3 (or more),
+  graph has dim set to 3 (or more),
   neato will use a node's z value
   for the z coordinate of its initial position if
-  its pos attribute is also defined.
+  its pos attribute is also defined.
   

   Even if no z values are specified in the input, it is necessary to
   declare a z attribute for nodes, e.g, using node[z=""]
@@ -1821,7 +1821,7 @@ This field indicates which graph component uses the attribute.
 The following list gives the legal strings corresponding to values of
 the given types.
 

-
arrowType
+
arrowType
 

@@ -1845,7 +1845,7 @@ the given types.
   

     
"normal"
         "inv"

   

   These are the basic set of backward-compatible arrow shapes. In addition,
-  there is a grammar of arrow shapes
+  there is a grammar of arrow shapes
   which can be used to describe a collection of 1,544,761 arrow combinations of the 36 varations of the primitive set of 9 arrows. The basic arrows shown
   above contain all of the primitive shapes
   (box, crow, diamond,
@@ -1858,20 +1858,20 @@ the given types.
   (ediamond, open, halfopen,
   empty, invempty).
 
-
aspectType
+
aspectType
 
An aspect ratio, double, followed optionally by a ',' and a maximum pass 
   count. If the aspect ratio is given, but no maximum pass count, the
   latter defaults to 5.
 
-
clusterMode
+
clusterMode
 
"local","global","none"
 
-
color
+
color
 
Colors can be specified using one of four formats.
          
-         
"#%2x%2x%2x"Red-Green-Blue (RGB)

          
"#%2x%2x%2x%2x"Red-Green-Blue-Alpha (RGBA)

          
H[, ]+S[, ]+VHue-Saturation-Value (HSV) 0.0 <= H,S,V <= 1.0
stringcolor name

+         stringcolor name
    The specification for the RGB and RGBA formats are the format strings used by
    sscanf to scan the color value. Thus, these values have the form
    "#RGB" or "#RGBA", where R, G, B, and A each consist of 2 hexidecimal
@@ -1880,7 +1880,7 @@ the given types.
   

   String-valued color specifications are case-insensitive and interpreted
   in the context of the current color scheme, as specified by the
-  colorscheme attribute. If this is undefined,
+  colorscheme attribute. If this is undefined,
   the X11 naming scheme will be used.
   An initial "/" character can be used to override the use of
   the colorscheme attribute. In particular, a single initial
@@ -1892,8 +1892,8 @@ the given types.
   Thus, the forms "yyyy" and "//yyyy" are
   equivalent.
   
At present, Graphviz recognizes the default color scheme X11,
-  and the Brewer color schemes (cf. ColorBrewer). Please note that Brewer
-  color schemes are covered by this license.
+  and the Brewer color schemes (cf. ColorBrewer). Please note that Brewer
+  color schemes are covered by this license.
   

   Examples:

     
@@ -1909,15 +1909,15 @@ the given types.
    This is only available in the output formats
    ps, svg, fig, vmrl, and the bitmap formats. It can be used whenever a
    color is needed but is most useful with
-   the bgcolor attribute.
+   the bgcolor attribute.
    Usually, the same effect can be achieved by setting
-   style to invis.
+   style to invis.
 
-
colorList
+
colorList
 
A colon-separated list of color values: C(:C)*
-   where each C is a color value.
+   where each C is a color value.
 
-
dirType
+
dirType
 
For an edge T -> H;
     

     
"forward"
@@ -1934,11 +1934,11 @@ the given types.
   the righthand one, is treated as the head for the purpose of
   interpreting "forward" and "back".
 
-
doubleList
+
doubleList
 
A colon-separated list of doubles: d(:d)*
    where each d is a double.
 
-
escString
+
escString
 
string allowing escape sequences which are replaced according
   to the context.
   For node attributes, the substring "\N" is replaced by the name of the node,
@@ -1955,30 +1955,30 @@ the given types.
   In all cases, the substring "\L" is replaced by the object's label attribute.
   

   In addition, if the associated attribute is
-  label,
-  headlabel or taillabel,
+  label,
+  headlabel or taillabel,
   the escape sequences "\n", "\l" and "\r"
   divide the label into lines, centered, left-justified, and right-justified,
   respectively.
 
-
layerList
+
layerList
 
list of strings separated by characters from the
-  layersep attribute (by default, colons,
-  tabs or spaces), defining layer
+  layersep attribute (by default, colons,
+  tabs or spaces), defining layer
   names and implicitly numbered 1,2,...
 
-
layerRange
+
layerRange
 
layerId or layerIdslayerId,
 where layerId = "all",
-  a decimal integer or a layer name.
+  a decimal integer or a layer name.
   (An integer i corresponds to layer i.)
   The string s consists of 1 or more separator characters specified
-  by the layersep attribute.
+  by the layersep attribute.
 
-
lblString
-
an escString
-  or an HTML label.
+
lblString
+
an escString
+  or an HTML label.
 
-
outputMode
+
outputMode
 
"breadthfirst","nodesfirst","edgesfirst"
   These specify the order in which nodes and edges are drawn in concrete
   output. The default "breadthfirst" is the simplest, but when the graph
@@ -1991,7 +1991,7 @@ the given types.
   if the resulting drawing is ambiguous. This can be achieved by choosing
   "edgesfirst".
 
-
packMode
+
packMode
 
"node", "clust" , "graph" , "array[_flags][%d]"
   

   The modes "node", "clust" or "graph"
@@ -2028,12 +2028,12 @@ the given types.
   If the optional flags contains "u", this causes the insertion
   order of elements in the array to be determined by user-supplied
   values. Each component can specify its sort value by a 
-  non-negative integer using the sortv attribute. 
+  non-negative integer using the sortv attribute. 
   Components are
   inserted in order, starting with the one with the smallest
   sort value. If no sort value is specified, zero is used.
 
-
pagedir
+
pagedir
 
"BL", "BR", "TL", "TR", "RB", "RT", "LB", "LT".
   These specify the 8 row or column major orders for traversing a
   rectangular array, the first character corresponding to the major
@@ -2043,28 +2043,28 @@ the given types.
   to right, then the next row up, from left to right, and so on,
   until the topmost row is traversed.
 
-
point
+
point
 
"%f,%f"('!') representing the point (x,y). The
   optional '!' indicates the
   node position should not change (input-only).
   

-  If dim is 3 or more, point may also have
+  If dim is 3 or more, point may also have
   the format "%f,%f,%f"('!') to represent the point (x,y,z).
 
-
pointf
+
pointf
 
"%lf,%lf" representing the point (x,y).
 
-
pointfList
+
pointfList
 
list of pointf, separated by spaces.
 
-
portPos
+
portPos
 
modifier indicating where on a node an edge should be aimed.
   It has the form portname[:compass_point]
   or compass_point.
   If the first form is used, the corresponding node must either have
-  record shape with one of its fields
+  record shape with one of its fields
   having the given portname,
-  or have an HTML-like label, one of
+  or have an HTML-like label, one of
   whose components has a PORT attribute set to portname.
   

   If a compass point is used, it must have the form
@@ -2079,8 +2079,8 @@ the given types.
   

   

   This attribute can be attached to an edge using the
-  headport and
-  tailport attributes, or as part of the
+  headport and
+  tailport attributes, or as part of the
   edge description as in
   

   node1:port1 -> node2:port5:nw;
@@ -2093,42 +2093,42 @@ the given types.
   At present, in this case, there is no way to specify that the compass
   point should be used.
 
-
quadType
+
quadType
 
"normal", "fast", "none". 
   

   Using "fast" gives about a 2-4 times overall speedup compared with "normal", 
   though layout quality can suffer a little. 
 
-
rankType
+
rankType
 
"same", "min", "source", "max", "sink"
 
-
rankdir
+
rankdir
 
"TB", "LR", "BT", "RL", corresponding to directed graphs drawn
   from top to bottom, from left to right, from bottom to top, and from
   right to left, respectively.
 
-
rect
+
rect
 
"%f,%f,%f,%f"  The rectangle llx,lly,urx,ury gives the coordinates, in
    points, of the lower-left corner (llx,lly) and the upper-right corner
    (urx,ury).
 
-
shape
-
A string specifying the shape of a node.
+
shape
+
A string specifying the shape of a node.
   There are three
   main types of shapes :
-  polygon-based,
-  record-based and
-  user-defined.
+  polygon-based,
+  record-based and
+  user-defined.
   The record-based shape has largely been superseded and greatly generalized
-  by HTML-like labels. 
+  by HTML-like labels. 
   That is, instead of using shape=record, one might
   consider using shape=none and an HTML-like label.
 
-
smoothType
+
smoothType
 
Values are "none", "avg_dist", "graph_dist", "power_dist", "rng", 
   "spring" and "triangle".
 
-
splineType
+
splineType
 
spline ( ';' spline )*

   
@@ -2142,7 +2142,7 @@ the given types.
    goes from p1 to startp. If startp is not given, p1 touches a node.
    Similarly for pn  and endp.
 
-
startType
+
startType
 
has the syntax [style][seed].
   

   If style is present, it must be one of the strings "regular",
@@ -2161,10 +2161,10 @@ the given types.
   If the value is just "random", a time-based seed is chosen.
   

   Note that input positions, specified by a node's
-  pos
+  pos
   attribute, are only used when the style is "random".
 
-
style
+
style
 
styleItem ( ',' styleItem )*

   

    
where spline=(endp)? (startp)? point (triple)+

@@ -2190,9 +2190,9 @@ the given types.
   width of the line in points. For example, style="bold" is
   equivalent to style="setlinewidth(2)".
   The use of setlinewidth is deprecated; one should use the
-  penwidth attribute instead.
+  penwidth attribute instead.
 
-
viewPort
+
viewPort
 
"%lf,%lf,%lf,%lf,%lf" or  "%lf,%lf,%lf,'%s'"
   

   The viewPort W,H,Z,x,y or W,H,Z,N
@@ -2207,7 +2207,7 @@ the given types.
   of a node whose center should used as the focus.
   By default, the focus is the center of the graph bounding box, i.e.,
   (bbx/2,bby/2), where "bbx,bby" is the
-  value of the bounding box attribute bb.
+  value of the bounding box attribute bb.
   

   Sample values: 50,50,.5,'2.8 BSD' or 100,100,2,450,300.
   The first will take the 100x100 point square centered on the node 2.8 BSD


   
where styleItem=name or name'('args')'