<HR ALIGN=CENTER WIDTH="70%" SIZE=3>
<TABLE ALIGN=CENTER>
<TR><TH>Name</TH><TH><A HREF=#h:uses>Used By</A></TH><TH>Type</TH><TH>Default</TH><TH>Minimum</TH><TH>Notes</TH></TR>
+ <TR><TD><A NAME=a:Damping HREF=#d:Damping>Damping</A>
+</TD><TD>G</TD><TD>double</TD><TD ALIGN="CENTER">0.99</TD><TD>0.0</TD><TD>neato only</TD> </TR>
+ <TR><TD><A NAME=a:K HREF=#d:K>K</A>
+</TD><TD>GC</TD><TD>double</TD><TD ALIGN="CENTER">0.3</TD><TD>0</TD><TD>sfdp, fdp only</TD> </TR>
+ <TR><TD><A NAME=a:URL HREF=#d:URL>URL</A>
+</TD><TD>ENGC</TD><TD><A HREF=#k:lblString>lblString</A>
+</TD><TD ALIGN="CENTER"><none></TD><TD></TD><TD>svg, postscript, map only</TD> </TR>
<TR><TD><A NAME=a:arrowhead HREF=#d:arrowhead>arrowhead</A>
</TD><TD>E</TD><TD><A HREF=#k:arrowType>arrowType</A>
</TD><TD ALIGN="CENTER">normal</TD><TD></TD><TD></TD> </TR>
<TR><TD><A NAME=a:constraint HREF=#d:constraint>constraint</A>
</TD><TD>E</TD><TD><A HREF=#k:bool>bool</A>
</TD><TD ALIGN="CENTER">true</TD><TD></TD><TD>dot only</TD> </TR>
- <TR><TD><A NAME=a:Damping HREF=#d:Damping>Damping</A>
-</TD><TD>G</TD><TD>double</TD><TD ALIGN="CENTER">0.99</TD><TD>0.0</TD><TD>neato only</TD> </TR>
<TR><TD><A NAME=a:decorate HREF=#d:decorate>decorate</A>
</TD><TD>E</TD><TD><A HREF=#k:bool>bool</A>
</TD><TD ALIGN="CENTER">false</TD><TD></TD><TD></TD> </TR>
</TD><TD>N</TD><TD>double</TD><TD ALIGN="CENTER">0.0</TD><TD>-100.0</TD><TD></TD> </TR>
<TR><TD><A NAME=a:dpi HREF=#d:dpi>dpi</A>
</TD><TD>G</TD><TD>double</TD><TD ALIGN="CENTER">96.0<BR>0.0</TD><TD></TD><TD>svg, bitmap output only</TD> </TR>
+ <TR><TD><A NAME=a:edgeURL HREF=#d:edgeURL>edgeURL</A>
+</TD><TD>E</TD><TD><A HREF=#k:lblString>lblString</A>
+</TD><TD ALIGN="CENTER">""</TD><TD></TD><TD>svg, map only</TD> </TR>
<TR><TD><A NAME=a:edgehref HREF=#d:edgehref>edgehref</A>
</TD><TD>E</TD><TD><A HREF=#k:lblString>lblString</A>
</TD><TD ALIGN="CENTER">""</TD><TD></TD><TD>svg, map only</TD> </TR>
<TR><TD><A NAME=a:edgetooltip HREF=#d:edgetooltip>edgetooltip</A>
</TD><TD>E</TD><TD><A HREF=#k:escString>escString</A>
</TD><TD ALIGN="CENTER">""</TD><TD></TD><TD>svg, cmap only</TD> </TR>
- <TR><TD><A NAME=a:edgeURL HREF=#d:edgeURL>edgeURL</A>
-</TD><TD>E</TD><TD><A HREF=#k:lblString>lblString</A>
-</TD><TD ALIGN="CENTER">""</TD><TD></TD><TD>svg, map only</TD> </TR>
<TR><TD><A NAME=a:epsilon HREF=#d:epsilon>epsilon</A>
</TD><TD>G</TD><TD>double</TD><TD ALIGN="CENTER">.0001 * # nodes(mode == KK)<BR>.0001(mode == major)</TD><TD></TD><TD>neato only</TD> </TR>
<TR><TD><A NAME=a:esep HREF=#d:esep>esep</A>
</TD><TD>ENGC</TD><TD>double</TD><TD ALIGN="CENTER">14.0</TD><TD>1.0</TD><TD></TD> </TR>
<TR><TD><A NAME=a:group HREF=#d:group>group</A>
</TD><TD>N</TD><TD>string</TD><TD ALIGN="CENTER">""</TD><TD></TD><TD>dot only</TD> </TR>
+ <TR><TD><A NAME=a:headURL HREF=#d:headURL>headURL</A>
+</TD><TD>E</TD><TD><A HREF=#k:lblString>lblString</A>
+</TD><TD ALIGN="CENTER">""</TD><TD></TD><TD>svg, map only</TD> </TR>
<TR><TD><A NAME=a:headclip HREF=#d:headclip>headclip</A>
</TD><TD>E</TD><TD><A HREF=#k:bool>bool</A>
</TD><TD ALIGN="CENTER">true</TD><TD></TD><TD></TD> </TR>
<TR><TD><A NAME=a:headtooltip HREF=#d:headtooltip>headtooltip</A>
</TD><TD>E</TD><TD><A HREF=#k:escString>escString</A>
</TD><TD ALIGN="CENTER">""</TD><TD></TD><TD>svg, cmap only</TD> </TR>
- <TR><TD><A NAME=a:headURL HREF=#d:headURL>headURL</A>
-</TD><TD>E</TD><TD><A HREF=#k:lblString>lblString</A>
-</TD><TD ALIGN="CENTER">""</TD><TD></TD><TD>svg, map only</TD> </TR>
<TR><TD><A NAME=a:height HREF=#d:height>height</A>
</TD><TD>N</TD><TD>double</TD><TD ALIGN="CENTER">0.5</TD><TD>0.02</TD><TD></TD> </TR>
<TR><TD><A NAME=a:href HREF=#d:href>href</A>
<TR><TD><A NAME=a:imagescale HREF=#d:imagescale>imagescale</A>
</TD><TD>N</TD><TD><A HREF=#k:bool>bool</A>
<BR>string</TD><TD ALIGN="CENTER">false</TD><TD></TD><TD></TD> </TR>
- <TR><TD><A NAME=a:K HREF=#d:K>K</A>
-</TD><TD>GC</TD><TD>double</TD><TD ALIGN="CENTER">0.3</TD><TD>0</TD><TD>sfdp, fdp only</TD> </TR>
<TR><TD><A NAME=a:label HREF=#d:label>label</A>
</TD><TD>ENGC</TD><TD><A HREF=#k:lblString>lblString</A>
</TD><TD ALIGN="CENTER">"\N" (nodes)<BR>"" (otherwise)</TD><TD></TD><TD></TD> </TR>
+ <TR><TD><A NAME=a:labelURL HREF=#d:labelURL>labelURL</A>
+</TD><TD>E</TD><TD><A HREF=#k:lblString>lblString</A>
+</TD><TD ALIGN="CENTER">""</TD><TD></TD><TD>svg, map only</TD> </TR>
<TR><TD><A NAME=a:labelangle HREF=#d:labelangle>labelangle</A>
</TD><TD>E</TD><TD>double</TD><TD ALIGN="CENTER">-25.0</TD><TD>-180.0</TD><TD></TD> </TR>
<TR><TD><A NAME=a:labeldistance HREF=#d:labeldistance>labeldistance</A>
<TR><TD><A NAME=a:labeltooltip HREF=#d:labeltooltip>labeltooltip</A>
</TD><TD>E</TD><TD><A HREF=#k:escString>escString</A>
</TD><TD ALIGN="CENTER">""</TD><TD></TD><TD>svg, cmap only</TD> </TR>
- <TR><TD><A NAME=a:labelURL HREF=#d:labelURL>labelURL</A>
-</TD><TD>E</TD><TD><A HREF=#k:lblString>lblString</A>
-</TD><TD ALIGN="CENTER">""</TD><TD></TD><TD>svg, map only</TD> </TR>
<TR><TD><A NAME=a:landscape HREF=#d:landscape>landscape</A>
</TD><TD>G</TD><TD><A HREF=#k:bool>bool</A>
</TD><TD ALIGN="CENTER">false</TD><TD></TD><TD></TD> </TR>
</TD><TD ALIGN="CENTER"></TD><TD></TD><TD></TD> </TR>
<TR><TD><A NAME=a:stylesheet HREF=#d:stylesheet>stylesheet</A>
</TD><TD>G</TD><TD>string</TD><TD ALIGN="CENTER">""</TD><TD></TD><TD>svg only</TD> </TR>
+ <TR><TD><A NAME=a:tailURL HREF=#d:tailURL>tailURL</A>
+</TD><TD>E</TD><TD><A HREF=#k:lblString>lblString</A>
+</TD><TD ALIGN="CENTER">""</TD><TD></TD><TD>svg, map only</TD> </TR>
<TR><TD><A NAME=a:tailclip HREF=#d:tailclip>tailclip</A>
</TD><TD>E</TD><TD><A HREF=#k:bool>bool</A>
</TD><TD ALIGN="CENTER">true</TD><TD></TD><TD></TD> </TR>
<TR><TD><A NAME=a:tailtooltip HREF=#d:tailtooltip>tailtooltip</A>
</TD><TD>E</TD><TD><A HREF=#k:escString>escString</A>
</TD><TD ALIGN="CENTER">""</TD><TD></TD><TD>svg, cmap only</TD> </TR>
- <TR><TD><A NAME=a:tailURL HREF=#d:tailURL>tailURL</A>
-</TD><TD>E</TD><TD><A HREF=#k:lblString>lblString</A>
-</TD><TD ALIGN="CENTER">""</TD><TD></TD><TD>svg, map only</TD> </TR>
<TR><TD><A NAME=a:target HREF=#d:target>target</A>
</TD><TD>ENGC</TD><TD><A HREF=#k:escString>escString</A>
<BR>string</TD><TD ALIGN="CENTER"><none></TD><TD></TD><TD>svg, map only</TD> </TR>
<TR><TD><A NAME=a:truecolor HREF=#d:truecolor>truecolor</A>
</TD><TD>G</TD><TD><A HREF=#k:bool>bool</A>
</TD><TD ALIGN="CENTER"></TD><TD></TD><TD>bitmap output only</TD> </TR>
- <TR><TD><A NAME=a:URL HREF=#d:URL>URL</A>
-</TD><TD>ENGC</TD><TD><A HREF=#k:lblString>lblString</A>
-</TD><TD ALIGN="CENTER"><none></TD><TD></TD><TD>svg, postscript, map only</TD> </TR>
<TR><TD><A NAME=a:vertices HREF=#d:vertices>vertices</A>
</TD><TD>N</TD><TD><A HREF=#k:pointfList>pointfList</A>
</TD><TD ALIGN="CENTER"></TD><TD></TD><TD>write only</TD> </TR>
<HR>
<H1>Attribute Descriptions</H1>
<DL>
+<DT><A NAME=d:Damping HREF=#a:Damping><STRONG>Damping</STRONG></A>
+<DD> 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.
+
+<DT><A NAME=d:K HREF=#a:K><STRONG>K</STRONG></A>
+<DD> 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 <A HREF=#d:len>len</A> can be used to
+ override this value for adjacent nodes.
+
+<DT><A NAME=d:URL HREF=#a:URL><STRONG>URL</STRONG></A>
+<DD> 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
+ clusters. URL attributes can also be attached to the root graph in ps2,
+ cmap and i*map formats. This serves as the base URL for relative URLs in the
+ former, and as the default image map file in the latter.
+ <P>
+ For svg, cmapx and imap output, the active area for a node is its
+ visible image.
+ For example, an unfilled
+ node with no drawn boundary will only be active on its label.
+ For other output, the active area is its bounding box.
+ The active area for a cluster is its bounding box.
+ For edges, the active areas are small circles where the edge contacts its head
+ and tail nodes. In addition, for svg, cmapx and imap, the active area
+ includes a thin polygon approximating the edge. The circles may
+ overlap the related node, and the edge URL dominates.
+ 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.
+ <P>
+ Note that, for edges, the attributes <A HREF=#d:headURL>headURL</A>,
+ <A HREF=#d:tailURL>tailURL</A>, <A HREF=#d:labelURL>labelURL</A> and
+ <A HREF=#d:edgeURL>edgeURL</A> allow control of various parts of an
+ edge.
+ Also note that, if active areas of two edges overlap, it is unspecified
+ which area dominates.
+
<DT><A NAME=d:arrowhead HREF=#a:arrowhead><STRONG>arrowhead</STRONG></A>
<DD> Style of arrowhead on the head node of an edge.
See also the <A HREF=#d:dir>dir</A> attribute,
yielding the graph:<BR>
<IMG SRC="constraint.gif">
-<DT><A NAME=d:Damping HREF=#a:Damping><STRONG>Damping</STRONG></A>
-<DD> 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.
-
<DT><A NAME=d:decorate HREF=#a:decorate><STRONG>decorate</STRONG></A>
<DD> If true, attach edge label to edge by a 2-segment
polyline, underlining the label, then going to the closest point of spline.
it is used to guarantee that the dimensions in the output correspond to
the correct number of points or inches.
+<DT><A NAME=d:edgeURL HREF=#a:edgeURL><STRONG>edgeURL</STRONG></A>
+<DD> If <B>edgeURL</B> is defined, this is the link used for the non-label
+ parts of an edge. This value overrides any <A HREF=#d:URL>URL</A>
+ defined for the edge.
+ Also, this value is used near the head or tail node unless overridden
+ by a <A HREF=#d:headURL>headURL</A> or <A HREF=#d:tailURL>tailURL</A> value,
+ respectively.
+ See <A HREF=#h:undir_note>limitation</A>.
+
<DT><A NAME=d:edgehref HREF=#a:edgehref><STRONG>edgehref</STRONG></A>
<DD> Synonym for <A HREF=#d:edgeURL>edgeURL</A>.
This is used only if the edge has a <A HREF=#d:URL>URL</A>
or <A HREF=#d:edgeURL>edgeURL</A> attribute.
-<DT><A NAME=d:edgeURL HREF=#a:edgeURL><STRONG>edgeURL</STRONG></A>
-<DD> If <B>edgeURL</B> is defined, this is the link used for the non-label
- parts of an edge. This value overrides any <A HREF=#d:URL>URL</A>
- defined for the edge.
- Also, this value is used near the head or tail node unless overridden
- by a <A HREF=#d:headURL>headURL</A> or <A HREF=#d:tailURL>tailURL</A> value,
- respectively.
- See <A HREF=#h:undir_note>limitation</A>.
-
<DT><A NAME=d:epsilon HREF=#a:epsilon><STRONG>epsilon</STRONG></A>
<DD> Terminating condition. If the length squared of all energy gradients are
< <B>epsilon</B>, the algorithm stops.
same group attribute, parameters are set to avoid crossings and keep
the edges straight.
+<DT><A NAME=d:headURL HREF=#a:headURL><STRONG>headURL</STRONG></A>
+<DD> If <B>headURL</B> 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
+ <A HREF=#d:URL>URL</A> value.
+ See <A HREF=#h:undir_note>limitation</A>.
+
<DT><A NAME=d:headclip HREF=#a:headclip><STRONG>headclip</STRONG></A>
<DD> 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
<DD> Tooltip annotation attached to the head of an edge. This is used only
if the edge has a <A HREF=#d:headURL>headURL</A> attribute.
-<DT><A NAME=d:headURL HREF=#a:headURL><STRONG>headURL</STRONG></A>
-<DD> If <B>headURL</B> 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
- <A HREF=#d:URL>URL</A> value.
- See <A HREF=#h:undir_note>limitation</A>.
-
<DT><A NAME=d:height HREF=#a:height><STRONG>height</STRONG></A>
<DD> Height of node, in inches. This is taken as the initial, minimum height
of the node. If <A HREF=#d:fixedsize><B>fixedsize</B></A> is true, this
expansion, if <TT>imagescale=true</TT>, width and height are
scaled uniformly.
-<DT><A NAME=d:K HREF=#a:K><STRONG>K</STRONG></A>
-<DD> 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 <A HREF=#d:len>len</A> can be used to
- override this value for adjacent nodes.
-
<DT><A NAME=d:label HREF=#a:label><STRONG>label</STRONG></A>
<DD> Text label attached to objects.
If a node's <A HREF=#d:shape>shape</A> is record, then the label can
have a <A HREF=shapes.html#record>special format</A>
which describes the record layout.
+<DT><A NAME=d:labelURL HREF=#a:labelURL><STRONG>labelURL</STRONG></A>
+<DD> If <B>labelURL</B> is defined, this is the link used for the label
+ of an edge. This value overrides any <A HREF=#d:URL>URL</A>
+ defined for the edge.
+
<DT><A NAME=d:labelangle HREF=#a:labelangle><STRONG>labelangle</STRONG></A>
<DD> This, along with <A HREF=#d:labeldistance>labeldistance</A>, determine
where the
This is used only if the edge has a <A HREF=#d:URL>URL</A>
or <A HREF=#d:labelURL>labelURL</A> attribute.
-<DT><A NAME=d:labelURL HREF=#a:labelURL><STRONG>labelURL</STRONG></A>
-<DD> If <B>labelURL</B> is defined, this is the link used for the label
- of an edge. This value overrides any <A HREF=#d:URL>URL</A>
- defined for the edge.
-
<DT><A NAME=d:landscape HREF=#a:landscape><STRONG>landscape</STRONG></A>
<DD> If true, the graph is rendered in landscape mode. Synonymous with
<A HREF=#d:rotate><TT>rotate=90</TT></A> or
<DT><A NAME=d:stylesheet HREF=#a:stylesheet><STRONG>stylesheet</STRONG></A>
<DD> A URL or pathname specifying an XML style sheet, used in SVG output.
+<DT><A NAME=d:tailURL HREF=#a:tailURL><STRONG>tailURL</STRONG></A>
+<DD> If <B>tailURL</B> 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
+ <A HREF=#d:URL>URL</A> value.
+ See <A HREF=#h:undir_note>limitation</A>.
+
<DT><A NAME=d:tailclip HREF=#a:tailclip><STRONG>tailclip</STRONG></A>
<DD> 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
<DD> Tooltip annotation attached to the tail of an edge. This is used only
if the edge has a <A HREF=#d:tailURL>tailURL</A> attribute.
-<DT><A NAME=d:tailURL HREF=#a:tailURL><STRONG>tailURL</STRONG></A>
-<DD> If <B>tailURL</B> 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
- <A HREF=#d:URL>URL</A> value.
- See <A HREF=#h:undir_note>limitation</A>.
-
<DT><A NAME=d:target HREF=#a:target><STRONG>target</STRONG></A>
<DD> If the object has a URL, this attribute determines which window
of the browser is used for the URL.
antialiasing can show up as a fuzzy white area around characters.
Using <B>truecolor</B>=true avoids this problem.
-<DT><A NAME=d:URL HREF=#a:URL><STRONG>URL</STRONG></A>
-<DD> 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
- clusters. URL attributes can also be attached to the root graph in ps2,
- cmap and i*map formats. This serves as the base URL for relative URLs in the
- former, and as the default image map file in the latter.
- <P>
- For svg, cmapx and imap output, the active area for a node is its
- visible image.
- For example, an unfilled
- node with no drawn boundary will only be active on its label.
- For other output, the active area is its bounding box.
- The active area for a cluster is its bounding box.
- For edges, the active areas are small circles where the edge contacts its head
- and tail nodes. In addition, for svg, cmapx and imap, the active area
- includes a thin polygon approximating the edge. The circles may
- overlap the related node, and the edge URL dominates.
- 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.
- <P>
- Note that, for edges, the attributes <A HREF=#d:headURL>headURL</A>,
- <A HREF=#d:tailURL>tailURL</A>, <A HREF=#d:labelURL>labelURL</A> and
- <A HREF=#d:edgeURL>edgeURL</A> allow control of various parts of an
- edge.
- Also note that, if active areas of two edges overlap, it is unspecified
- which area dominates.
-
<DT><A NAME=d:vertices HREF=#a:vertices><STRONG>vertices</STRONG></A>
<DD> If the input graph defines this attribute, the node is polygonal,
and output is dot or xdot, this attribute provides the
Using "fast" gives about a 2-4 times overall speedup compared with "normal",
though layout quality can suffer a little.
+<DT><A NAME=k:rankType><STRONG>rankType</STRONG></A>
+<DD>"same", "min", "source", "max", "sink"
+
<DT><A NAME=k:rankdir><STRONG>rankdir</STRONG></A>
<DD>"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.
-<DT><A NAME=k:rankType><STRONG>rankType</STRONG></A>
-<DD>"same", "min", "source", "max", "sink"
-
<DT><A NAME=k:rect><STRONG>rect</STRONG></A>
<DD>"%d,%d,%d,%d" The rect llx,lly,urx,ury gives the coordinates, in
points, of the lower-left corner (llx,lly) and the upper-right corner
projects / graphviz / commitdiff