com.example.sulemaia.Helper

Class GraphViz

java.lang.Object

com.example.sulemaia.Helper.GraphViz

public class GraphViz
extends Object

Purpose: GraphViz Java API

Description:

With this Java class you can simply call dot from your Java programs

Example usage:

    GraphViz gv = new GraphViz();
    gv.addln(gv.start_graph());
    gv.addln("A -> B;");
    gv.addln("A -> C;");
    gv.addln(gv.end_graph());
    System.out.println(gv.getDotSource());
 

Version:

v0.1, 2003/12/04 (December) -- first release

Author:

Laszlo Szathmary (jabba.laci@gmail.com), Carlos Carvajal (Modificaciones al codigo original), Alejandro Silva (Modificaciones al codigo original)

Field Summary

Fields

Modifier and Type	Field and Description
private StringBuilder	graph The source of the graph written in dot language.
private HashSet<String>	lines Set made to avoid repetitions.

Constructor Summary

Constructors

Constructor and Description
GraphViz() Constructor: creates a new GraphViz object that will contain a graph.

Method Summary

Modifier and Type	Method and Description
void	add(String line) Adds a string to the graph's source (without newline).
void	addConectorWithLabel(String from, String to, String cost) Adds a conector from given node to given node adding a label in the conector
void	addln() Adds a newline to the graph's source.
void	addln(String line) Adds a string to the graph's source (with newline).
void	addNodeStep(String node, String step) Adds to a node the current given step
void	end_graph() Adds a instruction to end the tree
String	getDotSource() Returns the graph's source description in dot language.
void	setFinal(String name) Changes the color of the final node to red
void	setInitial(String name) Changes the color of the initial node to green
void	start_graph() Initialize the tree syntax

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

graph

private StringBuilder graph

The source of the graph written in dot language.

lines

private HashSet<String> lines

Set made to avoid repetitions.

Constructor Detail

GraphViz

public GraphViz()

Constructor: creates a new GraphViz object that will contain a graph.

Method Detail

getDotSource

public String getDotSource()

Returns the graph's source description in dot language.

Returns:

Source of the graph in dot language.

add

public void add(String line)

Adds a string to the graph's source (without newline).

addln

public void addln(String line)

Adds a string to the graph's source (with newline).

addln

public void addln()

Adds a newline to the graph's source.

addNodeStep

public void addNodeStep(String node,
                        String step)

Adds to a node the current given step

Parameters:

node - Node to describe

step - current step of the node that will be displayed

addConectorWithLabel

public void addConectorWithLabel(String from,
                                 String to,
                                 String cost)

Adds a conector from given node to given node adding a label in the conector

Parameters:

from - Initial node

to - Final node

cost - Value to be placed

start_graph

public void start_graph()

Initialize the tree syntax

end_graph

public void end_graph()

Adds a instruction to end the tree

setInitial

public void setInitial(String name)

Changes the color of the initial node to green

Parameters:

name - initial node name

setFinal

public void setFinal(String name)

Changes the color of the final node to red

Parameters:

name - final node name