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gv(3tcl) gv(3tcl)

NAME

gv_tcl - graph manipulation in tcl

SYNOPSIS

#!/usr/bin/tclsh
package require gv

USAGE

Requires tcl8.3 or later.

INTRODUCTION

gv_tcl is a dynamically loaded extension for tcl that provides access to the graph facilities of graphviz.

COMMANDS



<graph_handle> gv::graph <name>
<graph_handle> gv::digraph <name>
<graph_handle> gv::strictgraph <name>
<graph_handle> gv::strictdigraph <name>

<graph_handle> gv::readstring <string>
<graph_handle> gv::read <string> filename
<graph_handle> gv::read <channel>

<graph_handle> gv::graph <graph_handle> <name>


<node_handle> gv::node <graph_handle> <name>


<edge_handle> gv::edge <tail_node_handle> <head_node_handle>

<edge_handle> gv::edge <tail_node_handle> <head_name>

<edge_handle> gv::edge <tail_name> <head_node_handle>

<edge_handle> gv::edge <graph_handle> <tail_name> <head_name>


<string> gv::setv <graph_handle> <attr_name> <attr_value>
<string> gv::setv <node_handle> <attr_name> <attr_value>
<string> gv::setv <edge_handle> <attr_name> <attr_value>

<string> gv::setv <graph_handle> <attr_handle> <attr_value>
<string> gv::setv <node_handle> <attr_handle> <attr_value>
<string> gv::setv <edge_handle> <attr_handle> <attr_value>


<string> gv::getv <graph_handle> <attr_name>
<string> gv::getv <node_handle> <attr_name>
<string> gv::getv <edge_handle> <attr_name>

<string> gv::getv <graph_handle> <attr_handle>
<string> gv::getv <node_handle> <attr_handle>
<string> gv::getv <edge_handle> <attr_handle>

<string> gv::nameof <graph_handle>
<string> gv::nameof <node_handle>
<string> gv::nameof <attr_handle>

<graph_handle> gv::findsubg <graph_handle> <name>
<node_handle> gv::findnode <graph_handle> <name>
<edge_handle> gv::findedge <tail_node_handle> <head_node_handle>
<attr_handle> gv::findattr <graph_handle> <name>
<attr_handle> gv::findattr <node_handle> <name>
<attr_handle> gv::findattr <edge_handle> <name>

<node_handle> gv::headof <edge_handle>
<node_handle> gv::tailof <edge_handle>
<graph_handle> gv::graphof <graph_handle>
<graph_handle> gv::graphof <edge_handle>
<graph_handle> gv::graphof <node_handle>
<graph_handle> gv::rootof <graph_handle>

<node_handle> gv::protonode <graph_handle>
<edge_handle> gv::protoedge <graph_handle>


<boolean_string> gv::ok <graph_handle>
<boolean_string> gv::ok <node_handle>
<boolean_string> gv::ok <edge_handle>
<boolean_string> gv::ok <attr_handle>

<graph_handle> gv::firstsubg <graph_handle>
<graph_handle> gv::nextsubg <graph_handle> <subgraph_handle>

<graph_handle> gv::firstsupg <graph_handle>
<graph_handle> gv::nextsupg <graph_handle> <subgraph_handle>

<edge_handle> gv::firstedge <graph_handle>
<edge_handle> gv::nextedge <graph_handle> <edge_handle>

<edge_handle> gv::firstout <graph_handle>
<edge_handle> gv::nextout <graph_handle> <edge_handle>

<edge_handle> gv::firstedge <node_handle>
<edge_handle> gv::nextedge <node_handle> <edge_handle>

<edge_handle> gv::firstout <node_handle>
<edge_handle> gv::nextout <node_handle> <edge_handle>

<node_handle> gv::firsthead <node_handle>
<node_handle> gv::nexthead <node_handle> <head_node_handle>

<edge_handle> gv::firstin <graph_handle>
<edge_handle> gv::nextin <node_handle> <edge_handle>

<edge_handle> gv::firstin <node_handle>
<edge_handle> gv::nextin <graph_handle> <edge_handle>

<node_handle> gv::firsttail <node_handle>
<node_handle> gv::nexttail <node_handle> <tail_node_handle>

<node_handle> gv::firstnode <graph_handle>
<node_handle> gv::nextnode <graph_handle> <node_handle>

<node_handle> gv::firstnode <edge_handle>
<node_handle> gv::nextnode <edge_handle> <node_handle>

<attr_handle> gv::firstattr <graph_handle>
<attr_handle> gv::nextattr <graph_handle> <attr_handle>

<attr_handle> gv::firstattr <edge_handle>
<attr_handle> gv::nextattr <edge_handle> <attr_handle>

<attr_handle> gv::firstattr <node_handle>
<attr_handle> gv::nextattr <node_handle> <attr_handle>

<boolean_string> gv::rm <graph_handle>
<boolean_string> gv::rm <node_handle>
<boolean_string> gv::rm <edge_handle>


<boolean_string> gv::layout <graph_handle> <string> engine


<boolean_string> gv::render <graph_handle>

<boolean_string> gv::render <graph_handle> <string> format

<boolean_string> gv::render <graph_handle> <string> format <channel> fout

<boolean_string> gv::render <graph_handle> <string> format <string> filename

<string> gv::renderresult <graph_handle> ing <string> format
gv::renderresult <graph_handle> <string> format <string> outdata

<boolean_string> gv::renderchannel <graph_handle> <string> format <string> channelname

(deprecated - too easy to leak memory)

(still needed for "eval [gv::renderdata $G tk]" )

<string> gv::renderdata <graph_handle> <string> format

<boolean_string> gv::write <graph_handle> <string> filename
<boolean_string> gv::write <graph_handle> <channel>

<boolean_string> gv::tred <graph_handle>

KEYWORDS

graph, dot, neato, fdp, circo, twopi, tcl.

06 September 2024