GraphViz::Traverse - Build a GraphViz object via callback traversal
GraphViz::Traverse object represents a base class for inheriting by other traversal modules.
my $g = GraphViz::Traverse->new($arguments);
Return a new GraphViz::Traverse instance. Valid arguments are listed below (taken from
man dot and GraphViz::Traverse):
_DEBUG = Class instance setting bgcolor = Class instance setting center = n a non-zero value centers the drawing on the page. color = color value sets foreground color (bgcolorfor background). concentrate = Class instance setting directed = Class instance setting epsilon = Class instance setting height = Class instance setting href = "url" the default url for image map files; in PostScript files, the base URL for all relative URLs, as recognized by Acrobat Distiller 3.0 and up. layers = "id:id:id:id" is a sequence of layer identifiers for overlay diagrams. The PostScript array variable layercolorseqsets the assignment of colors to layers. The least indexis1and each element must be a 3-ele- ment array to be interpreted as a color coordinate. layout = Class instance setting margin = f sets the page margin (included in the page size). no_overlap = Class instance setting nodesep = f sets the minimum separation between nodes. nslimit = f ormclimit=f adjusts the bound on the number of network simplexormincross iterations by the givenratio. For example,mclimit=2.0runs twice as long. ordering = out constrains order of out-edges in a subgraph according to their file sequence. overlap = Class instance setting page = "x,y" sets the PostScript pagination unit. pagedir = [TBLR][TBLR] sets the major and minor order of pagination. pageheight = Class instance setting pagewidth = Class instance setting random_start = Class instance setting rank = same (or minor max) inasubgraph constrains the rank assignment of its nodes. If a subgraph's name has the prefixcluster, its nodes are drawn in a distinct rectangle of the layout. Clusters may be nested. rankdir = LR|RL|BT requests a left-to-right, right-to-left, or bottom-to-top, drawing. ranksep = f sets the minimum separation between ranks. ratio = f sets the aspect ratio tof which may be a floating point number, orone of the keywordsfill, compress,orauto. rotate = 90 sets landscape mode. (orientation=landis backward compatible but obsolete.) size = "x,y" sets bounding box of drawing in inches. stylesheet = "file.css" includes a reference to a stylesheet in -Tsvg and -Tsvgz outputs. Ignored by other formats. URL = "url" ("URL" is a synonym for "href".) width = Class instance setting
$g->mark_item( $node ); $g->mark_item( $child, $parent );
Add a node or an edge to the
GraphViz::Traverse object. This method is to be used by the
Traverse a structure starting at a given root node. This method is to be overridden by an inheriting class with specific traversal actions for the
dot attributes listed below. Please see GraphViz::Traverse::Filesystem for an example of this attribute overriding.
color distortion fillcolor fixedsize fontcolor fontname fontsize height href label layer orientation peripheries regular shape sides skew style target tooltip URL width
arrowhead arrowsize arrowtail color constraint decorate dir fontcolor fontname fontsize headURL headclip headhref headlabel headtarget headtooltip href label labelangle labeldistance layer minlen port_label_distance samehead sametail style tailURL tailclip tailhref taillabel tailtooltip target tooltip URL weight
Document this code better.
Brad Choate <email@example.com> for untangling my AUTOLOADing.
Copyright 2006, Gene Boggs, All Rights Reserved
You may use this module under the license terms of the parent GraphViz package.
Gene Boggs <firstname.lastname@example.org>