From 9e325cfe40f7fdac2979e6d00d784e46fff3e0cb Mon Sep 17 00:00:00 2001 From: Mark Hansen Date: Wed, 21 Oct 2020 21:59:22 +1100 Subject: [PATCH] attrs.html: clean ID and NAMEs - Convert NAMEs to IDs, as recommended for non-form elements. https://stackoverflow.com/a/7470325/171898 - Quote HREFs and IDs --- doc/info/attrs.html | 982 ++++++++++++++-------------- doc/infosrc/templates/attrs.html.j2 | 42 +- 2 files changed, 510 insertions(+), 514 deletions(-) diff --git a/doc/info/attrs.html b/doc/info/attrs.html index cf5f9f494..76281f87d 100644 --- a/doc/info/attrs.html +++ b/doc/info/attrs.html @@ -7,8 +7,7 @@ Node, Edge and Graph Attributes - -

Node, Edge and Graph Attributes

The table below describes the attributes used by various Graphviz tools. The table gives the name of the attribute, the graph components (node, @@ -32,20 +31,19 @@ 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 @@ -57,12 +55,12 @@ 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. @@ -70,8 +68,8 @@ In addition, there are a variety of specialized types such as arrowType, color, point 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. @@ -83,471 +81,471 @@ of the layout programs.

- - + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Name	Used By	Type	Default	Minimum	Notes
Damping +
Name	Used By	Type	Default	Minimum	Notes
Damping	G	double	0.99	0.0	neato only
K +
K	GC	double	0.3	0	sfdp, fdp only
URL -	ENGC	escString +
URL +	ENGC	escString	<none>		svg, postscript, map only
_background +
_background	G	string	<none>
area +
area	NC	double	1.0	>0	patchwork only
arrowhead -	E	arrowType +
arrowhead +	E	arrowType	normal
arrowsize +
arrowsize	E	double	1.0	0.0
arrowtail -	E	arrowType +
arrowtail +	E	arrowType	normal
bb -	G	rect +
bb +	G	rect			write only
bgcolor -	GC	color - colorList +
bgcolor +	GC	color + colorList	<none>
center -	G	bool +
center +	G	bool	false
charset +
charset	G	string	"UTF-8"
class +
class	ENCG	string	""		svg only
clusterrank -	G	clusterMode +
clusterrank +	G	clusterMode	local		dot only
color -	ENC	color - colorList +
color +	ENC	color + colorList	black
colorscheme +
colorscheme	ENCG	string	""
comment +
comment	ENG	string	""
compound -	G	bool +
compound +	G	bool	false		dot only
concentrate -	G	bool +
concentrate +	G	bool	false
constraint -	E	bool +
constraint +	E	bool	true		dot only
decorate -	E	bool +
decorate +	E	bool	false
defaultdist +
defaultdist	G	double	1+(avg. len)*sqrt(\|V\|)	epsilon	neato only
dim +
dim	G	int	2	2	sfdp, fdp, neato only
dimen +
dimen	G	int	2	2	sfdp, fdp, neato only
dir -	E	dirType +
dir +	E	dirType	forward(directed) none(undirected)
diredgeconstraints -	G	string bool +
diredgeconstraints +	G	string bool	false		neato only
distortion +
distortion	N	double	0.0	-100.0
dpi +
dpi	G	double	96.0 0.0		svg, bitmap output only
edgeURL -	E	escString +
edgeURL +	E	escString	""		svg, map only
edgehref -	E	escString +
edgehref +	E	escString	""		svg, map only
edgetarget -	E	escString +
edgetarget +	E	escString	<none>		svg, map only
edgetooltip -	E	escString +
edgetooltip +	E	escString	""		svg, cmap only
epsilon +
epsilon	G	double	.0001 * # nodes(mode == KK) .0001(mode == major) .01(mode == sgd)		neato only
esep -	G	addDouble - addPoint +
esep +	G	addDouble + addPoint	+3		not dot
fillcolor -	NEC	color - colorList +
fillcolor +	NEC	color + colorList	lightgrey(nodes) black(clusters)
fixedsize -	N	bool +
fixedsize +	N	bool string	false
fontcolor -	ENGC	color +
fontcolor +	ENGC	color	black
fontname +
fontname	ENGC	string	"Times-Roman"
fontnames +
fontnames	G	string	""		svg only
fontpath +
fontpath	G	string	system-dependent
fontsize +
fontsize	ENGC	double	14.0	1.0
forcelabels -	G	bool +
forcelabels +	G	bool	true
gradientangle +
gradientangle	NCG	int	""
group +
group	N	string	""		dot only
headURL -	E	escString +
headURL +	E	escString	""		svg, map only
head_lp -	E	point +
head_lp +	E	point			write only
headclip -	E	bool +
headclip +	E	bool	true
headhref -	E	escString +
headhref +	E	escString	""		svg, map only
headlabel -	E	lblString +
headlabel +	E	lblString	""
headport -	E	portPos +
headport +	E	portPos	center
headtarget -	E	escString +
headtarget +	E	escString	<none>		svg, map only
headtooltip -	E	escString +
headtooltip +	E	escString	""		svg, cmap only
height +
height	N	double	0.5	0.02
href -	GCNE	escString +
href +	GCNE	escString	""		svg, postscript, map only
id -	GCNE	escString +
id +	GCNE	escString	""		svg, postscript, map only
image +
image	N	string	""
imagepath +
imagepath	G	string	""
imagepos +
imagepos	N	string	"mc"
imagescale -	N	bool +
imagescale +	N	bool string	false
inputscale +
inputscale	G	double	<none>		fdp, neato only
label -	ENGC	lblString +
label +	ENGC	lblString	"\\N" (nodes) "" (otherwise)
labelURL -	E	escString +
labelURL +	E	escString	""		svg, map only
label_scheme +
label_scheme	G	int	0	0	sfdp only
labelangle +
labelangle	E	double	-25.0	-180.0
labeldistance +
labeldistance	E	double	1.0	0.0
labelfloat -	E	bool +
labelfloat +	E	bool	false
labelfontcolor -	E	color +
labelfontcolor +	E	color	black
labelfontname +
labelfontname	E	string	"Times-Roman"
labelfontsize +
labelfontsize	E	double	14.0	1.0
labelhref -	E	escString +
labelhref +	E	escString	""		svg, map only
labeljust +
labeljust	GC	string	"c"
labelloc +
labelloc	NGC	string	"t"(clusters) "b"(root graphs) "c"(nodes)
labeltarget -	E	escString +
labeltarget +	E	escString	<none>		svg, map only
labeltooltip -	E	escString +
labeltooltip +	E	escString	""		svg, cmap only
landscape -	G	bool +
landscape +	G	bool	false
layer -	ENC	layerRange +
layer +	ENC	layerRange	""
layerlistsep +
layerlistsep	G	string	","
layers -	G	layerList +
layers +	G	layerList	""
layerselect -	G	layerRange +
layerselect +	G	layerRange	""
layersep +
layersep	G	string	"	\t"
layout +
layout	G	string	""
len +
len	E	double	1.0(neato) 0.3(fdp)		fdp, neato only
levels +
levels	G	int	MAXINT	0.0	sfdp only
levelsgap +
levelsgap	G	double	0.0		neato only
lhead +
lhead	E	string	""		dot only
lheight +
lheight	GC	double			write only
lp -	EGC	point +
lp +	EGC	point			write only
ltail +
ltail	E	string	""		dot only
lwidth +
lwidth	GC	double			write only
margin -	NCG	double point +
margin +	NCG	double point	<device-dependent>
maxiter +
maxiter	G	int	100 * # nodes(mode == KK) 200(mode == major) 30(mode == sgd) 600(fdp)		fdp, neato only
mclimit +
mclimit	G	double	1.0		dot only
mindist +
mindist	G	double	1.0	0.0	circo only
minlen +
minlen	E	int	1	0	dot only
mode +
mode	G	string	major		neato only
model +
model	G	string	shortpath		neato only
mosek -	G	bool +
mosek +	G	bool	false		neato only
newrank -	G	bool +
newrank +	G	bool	false		dot only
nodesep +
nodesep	G	double	0.25	0.02
nojustify -	GCNE	bool +
nojustify +	GCNE	bool	false
normalize -	G	double bool +
normalize +	G	double bool	false		not dot
notranslate -	G	bool +
notranslate +	G	bool	false		neato only
nslimit +
nslimit	G	double			dot only
nslimit1 +
nslimit1	G	double			dot only
ordering +
ordering	GN	string	""		dot only
orientation +
orientation	N	double	0.0	360.0
orientation +
orientation	G	string	""
outputorder -	G	outputMode +
outputorder +	G	outputMode	breadthfirst
overlap -	G	string bool +
overlap +	G	string bool	true		not dot
overlap_scaling +
overlap_scaling	G	double	-4	-1.0e10	prism only
overlap_shrink -	G	bool +
overlap_shrink +	G	bool	true		prism only
pack -	G	bool +
pack +	G	bool int	false
packmode -	G	packMode +
packmode +	G	packMode	node
pad -	G	double point +
pad +	G	double point	0.0555 (4 points)
page -	G	double point +
page +	G	double point
pagedir -	G	pagedir +
pagedir +	G	pagedir	BL
pencolor -	C	color +
pencolor +	C	color	black
penwidth +
penwidth	CNE	double	1.0	0.0
peripheries +
peripheries	NC	int	shape default(nodes) 1(clusters)	0
pin -	N	bool +
pin +	N	bool	false		fdp, neato only
pos -	EN	point - splineType +
pos +	EN	point + splineType
quadtree -	G	quadType - bool +
quadtree +	G	quadType + bool	normal		sfdp only
quantum +
quantum	G	double	0.0	0.0
rank -	S	rankType +
rank +	S	rankType			dot only
rankdir -	G	rankdir +
rankdir +	G	rankdir	TB		dot only
ranksep -	G	double doubleList +
ranksep +	G	double doubleList	0.5(dot) 1.0(twopi)	0.02	twopi, dot only
ratio +
ratio	G	double string
rects -	N	rect +
rects +	N	rect			write only
regular -	N	bool +
regular +	N	bool	false
remincross -	G	bool +
remincross +	G	bool	true		dot only
repulsiveforce +
repulsiveforce	G	double	1.0	0.0	sfdp only
resolution +
resolution	G	double	96.0 0.0		svg, bitmap output only
root -	GN	string bool +
root +	GN	string bool	<none>(graphs) false(nodes)		circo, twopi only
rotate +
rotate	G	int	0
rotation +
rotation	G	double	0		sfdp only
samehead +
samehead	E	string	""		dot only
sametail +
sametail	E	string	""		dot only
samplepoints +
samplepoints	N	int	8(output) 20(overlap and image maps)
scale -	G	double point +
scale +	G	double point			not dot
searchsize +
searchsize	G	int	30		dot only
sep -	G	addDouble - addPoint +
sep +	G	addDouble + addPoint	+4		not dot
shape -	N	shape +
shape +	N	shape	ellipse
shapefile +
shapefile	N	string	""
showboxes +
showboxes	ENG	int	0	0	dot only
sides +
sides	N	int	4	0
size -	G	double point +
size +	G	double point
skew +
skew	N	double	0.0	-100.0
smoothing -	G	smoothType +
smoothing +	G	smoothType	"none"		sfdp only
sortv +
sortv	GCN	int	0	0
splines -	G	bool +
splines +	G	bool string
start -	G	startType +
start +	G	startType	""		fdp, neato only
style -	ENCG	style +
style +	ENCG	style	""
stylesheet +
stylesheet	G	string	""		svg only
tailURL -	E	escString +
tailURL +	E	escString	""		svg, map only
tail_lp -	E	point +
tail_lp +	E	point			write only
tailclip -	E	bool +
tailclip +	E	bool	true
tailhref -	E	escString +
tailhref +	E	escString	""		svg, map only
taillabel -	E	lblString +
taillabel +	E	lblString	""
tailport -	E	portPos +
tailport +	E	portPos	center
tailtarget -	E	escString +
tailtarget +	E	escString	<none>		svg, map only
tailtooltip -	E	escString +
tailtooltip +	E	escString	""		svg, cmap only
target -	ENGC	escString +
target +	ENGC	escString string	<none>		svg, map only
tooltip -	NEC	escString +
tooltip +	NEC	escString	""		svg, cmap only
truecolor -	G	bool +
truecolor +	G	bool			bitmap output only
vertices -	N	pointList +
vertices +	N	pointList			write only
viewport -	G	viewPort +
viewport +	G	viewPort	""
voro_margin +
voro_margin	G	double	0.05	0.0	not dot
weight +
weight	E	int double	1	0(dot,twopi) 1(neato,fdp)
width +
width	N	double	0.75	0.01
xdotversion +
xdotversion	G	string			xdot only
xlabel -	EN	lblString +
xlabel +	EN	lblString	""
xlp -	NE	point +
xlp +	NE	point			write only
z +
z	N	double	0.0	-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 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 @@ -575,35 +573,35 @@ edge. Also note that, if active areas of two edges overlap, it is unspecified which area dominates. -

_background +

_background

A string in the xdot format specifying an arbitrary background. During rendering, the canvas is first filled as described in the bgcolor attribute. Then, if _background is defined, the graphics operations described in the string are performed on the canvas. -

area +

area

Indicates the preferred area for a node or empty cluster when laid out by patchwork. -

arrowhead +

arrowhead

Style of arrowhead on the head node of an edge. This will only appear if the dir attribute is "forward" or "both". 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 is "back" or "both". See the limitation. -

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 @@ -629,10 +627,10 @@ set, overwriting whatever color or graphics were already on the page. 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, @@ -641,7 +639,7 @@ equivalently, Note that if the character encoding used in the input does not match the charset value, the resulting output may be very strange. -

class +

class

Classnames to attach to the node, edge, graph, or cluster's SVG element. Combine with stylesheet for styling SVG output using CSS classnames. @@ -661,7 +659,7 @@ digraph G { } -

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 @@ -672,7 +670,7 @@ 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.

@@ -697,7 +695,7 @@ digraph G { 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", @@ -707,20 +705,20 @@ 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 +

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

@@ -735,20 +733,20 @@ assignment, so the only constraints are that a be above b and c,
 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.
 
-
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
@@ -763,14 +761,14 @@ attribute of the nodes.
 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.
 
-
diredgeconstraints
+
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.
@@ -778,19 +776,19 @@ If "hier", generates level constraints similar to those used with
 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
 
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
 defined for the edge.
@@ -799,10 +797,10 @@ by a headURL or tailURL value,
 respectively.
 See limitation.
 
-
edgehref
+
edgehref
 
Synonym for edgeURL.
 
-
edgetarget
+
edgetarget
 
If the edge has a URL or edgeURL
 attribute, this attribute determines which window of the
 browser is used
@@ -811,21 +809,21 @@ 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.
 
-
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.
 
-
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.
 
-
fillcolor
+
fillcolor
 
Color used to fill the background of a node or cluster
 assuming style=filled, or a filled arrowhead.
 If fillcolor is not defined, color is
@@ -847,7 +845,7 @@ Note that a cluster inherits the root graph's attributes if defined.
 Thus, if the root graph has defined a fillcolor, this will override a
 color or bgcolor attribute set for the cluster.
 
-
fixedsize
+
fixedsize
 
If false, the size of a node is determined by smallest width and height
 needed to contain its label and image, if any, with a margin specified by
 the margin attribute. The width
@@ -871,10 +869,10 @@ shape sizes are used when avoiding node overlap, but all edges to the
 node ignore the label and only contact the node shape. No warning is given
 if the label is too large.
 
-
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
@@ -908,7 +906,7 @@ in one of the directories specified by
 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
@@ -922,7 +920,7 @@ are used. Thus, "Times-Roman" would be treated as
 "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
@@ -931,14 +929,14 @@ If that is not set, GDFONTPATH is checked.
 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.
 
-
forcelabels
+
forcelabels
 
If true, all  xlabel attributes are placed, even if there is some overlap with nodes
 or other labels.
 
-
gradientangle
+
gradientangle
 
If a gradient fill is being used, this determines the angle of the fill. For linear fills, the colors transform
 along a line specified by the angle and the center of the object. For radial fills, a value of zero causes the
 colors to transform radially from the center; for non-zero values, the colors transform from a point near the
@@ -946,41 +944,41 @@ object's periphery as specified by the value.
 
 If unset, the default angle is 0.
 
-
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.
 
-
head_lp
+
head_lp
 
Position of an edge's head label, in points.
 The position indicates the center of the label.
 
-
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
+
headhref
 
Synonym for headURL.
 
-
headlabel
+
headlabel
 
Text label to be placed near head of edge.
 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.
 
-
headtarget
+
headtarget
 
If the edge has a headURL,
 this attribute determines which window of the
 browser is used
@@ -988,11 +986,11 @@ 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.
 
-
headtooltip
+
headtooltip
 
Tooltip annotation attached to the head of an edge. This is used only
 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
 will be the final height of the node. Otherwise, if the node label
@@ -1008,10 +1006,10 @@ the maximum of the two values is used.
 If neither is set explicitly, the minimum of the two default values
 is used.
 
-
href
+
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 responsibility of the provider to keep
@@ -1025,7 +1023,7 @@ If the graph provides an id attribute, this will be used as a prefix for
 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,
@@ -1051,7 +1049,7 @@ 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.
 
-
imagepath
+
imagepath
 
Specifies a list of directories in which to look for image files as specified by the
 image attribute or using the IMG element in
 HTML-like labels.
@@ -1061,7 +1059,7 @@ The first directory in which a file of the given name is found will be used to
 load the image. If imagepath is not set, relative pathnames for the image
 file will be interpreted with respect to the current working directory.
 
-
imagepos
+
imagepos
 
Attribute controlling how an image is positioned within its containing node.  This
 only has an effect when the image is smaller than the containing node.  The
 default is to be centered both horizontally and vertically.  Valid values:
@@ -1077,7 +1075,7 @@ default is to be centered both horizontally and vertically.  Valid values:
 brBottom Right
 
 
-
imagescale
+
imagescale
 
Attribute controlling how an image fills its
 containing node. In general, the image is given its natural size,
 (cf. dpi),
@@ -1107,7 +1105,7 @@ image is scaled down to fit the node. As with the case of
 expansion, if  imagescale=true, width and height are
 scaled uniformly.
 
-
inputscale
+
inputscale
 
For layout algorithms that support initial input positions (specified by the pos attribute),
 this attribute can be used to appropriately scale the values. By default, fdp and neato interpret
 the x and y values of pos as being in inches. (NOTE: neato -n(2) treats the coordinates as
@@ -1118,7 +1116,7 @@ This can also be set on the command line using the <
 If not set, no scaling is done and the units on input are treated as inches.
 A value of 0 is equivalent to inputscale=72.
 
-
label
+
label
 
Text label attached to objects.
 If a node's shape is record, then the label can
 have a special format
@@ -1131,12 +1129,12 @@ because the node's actual label is an ordinary string, which will be replaced
 by the raw bytes stored in the node's name.
 To get an HTML-like label, the label attribute value itself must be an HTML string.
 
-
labelURL
+
labelURL
 
If labelURL is defined, this is the link used for the label
 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.
@@ -1145,7 +1143,7 @@ center of its neighbor. With a value of 2, sfdp uses a penalty-based method to m
 close to the old center of its neighbor. Finally, a value of 3 invokes a two-step process of overlap 
 removal and straightening.
 
-
labelangle
+
labelangle
 
This, along with labeldistance, determine
 where the
 headlabel (taillabel) are placed with respect to the head (tail)
@@ -1158,32 +1156,32 @@ The angle, in degrees, specifies the rotation from the 0 degree ray,
 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
 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
+
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.
@@ -1191,7 +1189,7 @@ Note that a subgraph inherits attributes from its parent. Thus, if
 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
@@ -1208,7 +1206,7 @@ If labelloc is set to "t", "c", or "b", the label is aligned
 with the top, centered, or aligned with the bottom of the node, respectively.
 In the default case, the label is vertically centered.
 
-
labeltarget
+
labeltarget
 
If the edge has a URL or labelURL
 attribute, this attribute determines which window of the
 browser is used
@@ -1217,37 +1215,37 @@ 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.
 
-
labeltooltip
+
labeltooltip
 
Tooltip annotation attached to label of an edge.
 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.
 
-
layer
+
layer
 
Specifies layers in which the node, edge or cluster is present.
 
-
layerlistsep
+
layerlistsep
 
Specifies the separator characters used to split
 an attribute of type layerRange into a list of ranges.
 
-
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).
 
-
layerselect
+
layerselect
 
Selects a list of layers to be emitted.
 
-
layersep
+
layersep
 
Specifies the separator characters used to split the
 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
@@ -1259,44 +1257,44 @@ This attribute takes precedence over
 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".
 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
+
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.
 
-
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
+
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.
 
-
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.
 
@@ -1312,23 +1310,23 @@ the cluster bounding box. By default, this is 8 points.
 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
@@ -1350,7 +1348,7 @@ a spring-electrical model. Setting mode to "maxent" causes a sim
 model to be run but one that also takes into account edge lengths specified by 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
@@ -1370,11 +1368,11 @@ 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.
 
-
newrank
+
newrank
 
The original ranking algorithm in dot is recursive on clusters. This can produce fewer ranks
 and a more compact layout, but sometimes at the cost of a head node being place on a higher
 rank than the tail node. It also assumes that a node is not constrained in separate, 
@@ -1385,13 +1383,13 @@ If newrank=true, the ranking algorithm does a single global ranking, ig
 This allows nodes to be subject to multiple constraints. Rank constraints will usually take
 precedence over edge constraints.
 
-
nodesep
+
nodesep
 
In dot, this specifies the minimum space between two adjacent nodes in the same rank, in inches.
 
 For other layouts, this affects the spacing between loops on a single node, or multiedges between
 a pair of nodes.
 
-
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
@@ -1404,7 +1402,7 @@ the first label line is long, and the second is shorter and left-justified,
 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 angle of the first edge is specified by the value of normalize in degrees.
@@ -1412,26 +1410,26 @@ If  normalize is not a number, it is evaluated as a  bool, wit
 corresponding to 0 degrees. NOTE: Since the attribute is evaluated first as a number,
 0 and 1 cannot be used for false and true.
 
-
notranslate
+
notranslate
 
By default, the final layout is translated so that the lower-left corner of the bounding box is
 at the origin. This can be annoying if some nodes are pinned or if the user runs neato -n. 
 To avoid this translation, set notranslate to true.
 
-
nslimit
+
nslimit
 
Used to set number of iterations in
 network simplex applications. nslimit is used in
 computing node x coordinates.
 If defined, # iterations =  nslimit * # nodes;
 otherwise,  # iterations = MAXINT.
 
-
nslimit1
+
nslimit1
 
Used to set number of iterations in
 network simplex applications. 
 nslimit1 is used for ranking nodes.
 If defined, # iterations =  nslimit1 * # 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
@@ -1445,17 +1443,17 @@ If defined as a graph or subgraph attribute, the value is applied to all nodes
 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.
 
-
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.
 If "true" , overlaps are retained.
@@ -1530,7 +1528,7 @@ similar properties hold for the y coordinates.
 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.
@@ -1541,11 +1539,11 @@ If overlap_scaling is positive, the layout is scaled by
 overlap_scaling.
 If overlap_scaling is zero, no scaling is done.
 
-
overlap_shrink
+
overlap_shrink
 
If true, the overlap removal algorithm will perform a compression pass to reduce the
 size of the layout.
 
-
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.
@@ -1559,13 +1557,13 @@ The granularity and method of packing is influenced by the
 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
 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
@@ -1576,7 +1574,7 @@ Normally, a small pad is used for aesthetic reasons, especially when
 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.
 
@@ -1592,12 +1590,12 @@ output, one should use another tool to split the output into multiple
 output files. Or use the viewport to generate
 multiple files.
 
-
pagedir
+
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.
@@ -1607,7 +1605,7 @@ 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.
@@ -1618,7 +1616,7 @@ was achieved by including setlinewidth(W)
 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
@@ -1627,7 +1625,7 @@ 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).
@@ -1646,7 +1644,7 @@ After 27 Feb 2014, this translation can be avoided in neato by setting the
 specifies node overlap removal or a change in 
 aspect ratio, node coordinates may still change. 
 
-
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.
@@ -1664,7 +1662,7 @@ 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";
@@ -1672,11 +1670,11 @@ a FALSE bool value corresponds to "none".
 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.
@@ -1688,7 +1686,7 @@ Analogous criteria hold for rank="max" and rank="sink".
 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.
@@ -1696,7 +1694,7 @@ 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.
 
-
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
@@ -1710,7 +1708,7 @@ the radius of the inner circle; the second double specifies the increase in
 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.
@@ -1761,26 +1759,26 @@ 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 crossing
 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
+
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, it
@@ -1797,40 +1795,40 @@ For twopi, it is possible to have multiple roots, presumably one for each
 component. If more than one node in a component is marked as the root, twopi
 will pick one.
 
-
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. This has no effect on loops.
 Each node can have at most 5 unique samehead values.
 See limitation.
 
-
sametail
+
sametail
 
Edges with the same tail and the same sametail value are aimed
 at the same point on the tail. This has no effect on loops.
 Each node can have at most 5 unique sametail values.
 See limitation.
 
-
samplepoints
+
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, the layout is scaled by the given factors.
 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.
 
@@ -1847,10 +1845,10 @@ 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 image in the shapefile must be
@@ -1869,14 +1867,14 @@ 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, TB mode only!)
 
-
sides
+
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.
@@ -1894,20 +1892,20 @@ least one dimension equals its dimension in size.
 Note that there is some interaction between the size and
 ratio attributes.
 
-
skew
+
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
+
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 none or "", no edges are drawn at all.
@@ -1960,13 +1958,13 @@ 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 information for components of the graph. For cluster subgraphs, if style="filled", the
 cluster box's background is filled.
 
@@ -1981,38 +1979,38 @@ making all edges invisible, a specific edge can overrride this via:
 

 Of course, the component can also explicitly set its style attribute to the desired value.
 
-
stylesheet
+
stylesheet
 
A URL or pathname specifying an XML style sheet, used in SVG output. Combine
 with class to style elements using CSS selectors.
 
-
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.
 
-
tail_lp
+
tail_lp
 
Position of an edge's tail label, in points.
 The position indicates the center of the label.
 
-
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
+
tailhref
 
Synonym for tailURL.
 
-
taillabel
+
taillabel
 
Text label to be placed near tail of edge.
 See limitation.
 
-
tailport
+
tailport
 
Indicates where on the tail node to attach the tail of the edge.
 See limitation.
 
-
tailtarget
+
tailtarget
 
If the edge has a tailURL,
 this attribute determines which window of the
 browser is used
@@ -2020,16 +2018,16 @@ 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.
 
-
tailtooltip
+
tailtooltip
 
Tooltip annotation attached to the tail of an edge. This is used only
 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.
 
-
tooltip
+
tooltip
 
Tooltip annotation attached to the node or edge. If unset, Graphviz
 will use the object's label if defined.
 Note that if the label is a record specification or an HTML-like
@@ -2037,7 +2035,7 @@ 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.
@@ -2056,7 +2054,7 @@ 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.
@@ -2064,16 +2062,16 @@ If the node is an ellipse or circle, the
 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
 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.
 N.B. Weights in dot must be integers.
@@ -2083,7 +2081,7 @@ For other layouts, a larger weight encourages the layout to
 make the edge length closer to that specified by the 
 len attribute.
 
-
width
+
width
 
Width of node, in inches. This is taken as the initial, minimum width
 of the node. If fixedsize is true, this
 will be the final width of the node. Otherwise, if the node label
@@ -2099,11 +2097,11 @@ the maximum of the two values is used.
 If neither is set explicitly, the minimum of the two default values
 is used.
 
-
xdotversion
+
xdotversion
 
For xdot output, if this attribute is set, this determines the version of xdot used in output.
 If not set, the attribute will be set to the xdot version used for output.
 
-
xlabel
+
xlabel
 
External label for a node or edge. For nodes, the label will be placed outside of the
 node but near it. For edges, the label will be placed near the center of the edge.
 This can be useful in dot to avoid the occasional problem when the use of edge labels
@@ -2114,11 +2112,11 @@ These labels are added after all nodes and edges have been placed. The labels wi
 so that they do not overlap any node or label. This means it may not be possible to place all
 of them. To force placing all of them, use the  forcelabels attribute.
 
-
xlp
+
xlp
 
Position of an exterior label, in points.
 The position indicates the center of the label.
 
-
z
+
z
 
Deprecated:Use pos attribute, along
 with dimen and/or dim
 to specify dimensions.
@@ -2149,13 +2147,13 @@ For regular expressions, (...)* indicates 0 or more copies of the expre
 enclosed in the parentheses,  (...)+ indicates 1 or more, and
 (...)? denotes 0 or 1 copy.
 
-addDouble
+
addDouble
 
A double with an optional prefix '+'.
 
-
addPoint
+
addPoint
 
A point with an optional prefix '+'.
 
-
arrowType
+
arrowType
 

@@ -2193,10 +2191,10 @@ plus some supported as special cases for backward-compatibility
 (ediamond, open, halfopen,
 empty, invempty).
 
-clusterMode
+
clusterMode
 
"local","global","none"
 
-
color
+
color
 
Colors can be specified using one of four formats.
        

   "normal" 
       "inv" 
@@ -2243,7 +2241,7 @@ Examples:

  Usually, the same effect can be achieved by setting
  style to invis.
 
-colorList
+
colorList
 
A colon-separated list of weighted color values: WC(:WC)*
 where each WC has the form C(;F)? with C a color value
 and the optional F a floating-point number, 0 ≤ F ≤ 1. The sum of the 
@@ -2273,7 +2271,7 @@ The following table shows some variations of the yellow:blue color list
     
"#%2x%2x%2x" Red-Green-Blue (RGB)
        "#%2x%2x%2x%2x" Red-Green-Blue-Alpha (RGBA)
360 
   
 
-
dirType
+
dirType
 
For an edge T -> H;
   
   "forward" 
@@ -2290,11 +2288,11 @@ For undirected edges T -- H;, one of the nodes, usually
 the righthand one, is treated as the head for the purpose of
 interpreting "forward" and "back".
 
-doubleList
+
doubleList
 
A colon-separated list of doubles: "%f(:%f)*"
  where each %f is a double.
 
-
escString
+
escString
 
A 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,
@@ -2320,13 +2318,13 @@ respectively.
 Obviously, one can use "\\" to get a single backslash. A backslash appearing before any
 character not listed above is ignored.
 
-
layerList
+
layerList
 
list of strings separated by characters from the
 layersep attribute (by default, colons,
 tabs or spaces), defining layer
 names and implicitly numbered 1,2,...
 
-
layerRange
+
layerRange
 
specifies a list of layers defined by the layers attribute.
 It consists of a list of layer intervals separated by any collection of characters from
 the layerlistsep attribute.
@@ -2342,11 +2340,11 @@ and layerlistsep, if layers="a:b:c:d:e:f:g:h"layers="a:b,d,f:all" would denote the layers
 a b d f g h".
 
-
lblString
+
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
@@ -2359,7 +2357,7 @@ reasons, it may be desirable that all edges appear beneath nodes, even
 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"
@@ -2401,7 +2399,7 @@ 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
@@ -2411,7 +2409,7 @@ to right. This means the bottom row is traversed first, from left
 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).
@@ -2419,10 +2417,10 @@ node position should not change (input-only).
 If dim is 3, point may also have
 the format "%f,%f,%f('!')?" to represent the point (x,y,z).
 
-
pointList
+
pointList
 
A list of points, 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.
@@ -2458,26 +2456,26 @@ the port. Thus, if node A has a port w, then
 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
+
shape
 
A string specifying the shape of a node.
 There are three
 main types of shapes :
@@ -2489,11 +2487,11 @@ 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 )*

 
@@ -2507,7 +2505,7 @@ If a spline has points p₁ p₂ p₃ ... p_n1 to startp. If startp is not given, p₁ touches a node.
  Similarly for p_n  and endp.
 
-startType
+
startType
 
has the syntax (style)?(seed)?.
 
 If style is present, it must be one of the strings "regular",
@@ -2529,7 +2527,7 @@ Note that input positions, specified by a node's
 pos
 attribute, are only used when the style is "random".
 
-
style
+
style
 
styleItem ( ',' styleItem )*

 

  where spline = (endp)? (startp)? point (triple)+
@@ -2639,7 +2637,7 @@ equivalent to style="setlinewidth(2)".
 The use of setlinewidth is deprecated; one should use the
 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
diff --git a/doc/infosrc/templates/attrs.html.j2 b/doc/infosrc/templates/attrs.html.j2
index d162e995d..685d7516d 100644
--- a/doc/infosrc/templates/attrs.html.j2
+++ b/doc/infosrc/templates/attrs.html.j2
@@ -7,8 +7,7 @@
 Node, Edge and Graph Attributes
 
 
-
-
Node, Edge and Graph Attributes
+Node, Edge and Graph Attributes
 
 The table below describes the attributes used by various Graphviz tools.
 The table gives the name of the attribute, the graph components (node,
@@ -32,20 +31,19 @@ one would use
 

 where styleItem = name or name'('args')'
 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
@@ -57,12 +55,12 @@ 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.
@@ -70,8 +68,8 @@ In addition, there are a variety of specialized types such as
 arrowType, color,
 point 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.
@@ -83,9 +81,9 @@ of the layout programs.
 

 
 
-
+
 {% for attr in attrs %}
- Name Used By Type Default Minimum Notes
Name Used By Type Default Minimum Notes
{{ attr.name }}
+ 
{{ attr.name }}
 {{ attr.uses }} 
   {%- for kind in attr.kinds -%}
     {%- if not loop.first -%}
@@ -94,9 +92,9 @@ of the layout programs.
     {%- if kind in ['double', 'int', 'string'] -%}
       {{ kind }}
     {%- elif kind == 'bool' -%}
-      bool
+      bool
     {% else -%}
-      {{kind}}
+      {{kind}}
     {% endif -%}
   {%- endfor -%}
   
@@ -136,7 +134,7 @@ of the layout programs.
 Attribute Descriptions
 
 {% for attr in attrs %}
-{{ attr.name }}
+
{{ attr.name }}
 
{{ attr.html_description }}
 {% endfor %}
 
@@ -151,7 +149,7 @@ enclosed in the parentheses,  (...)+ indicates 1 or more, and
 (...)? denotes 0 or 1 copy.
 
 {% for t in types %}
-{{t.name}}
+
{{t.name}}
 
{{t.html_description}}
 {% endfor %}
 
-- 
2.40.0

"#%2x%2x%2x"	Red-Green-Blue (RGB)
"#%2x%2x%2x%2x"	Red-Green-Blue-Alpha (RGBA)
360