Image
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Packages:
Image


Files:
GraphViz.php

Classes:
Image_GraphViz

Class: Image_GraphViz

Source Location: /Image_GraphViz-0.3/GraphViz.php

Class Overview




PEAR::Image_GraphViz




Author(s):






    






Variables






Methods

















Inherited Variables





Inherited Methods














Class Details



[line 57]

PEAR::Image_GraphViz
Purpose
Allows for the creation of and the work with directed      and undirected graphs and their visualization with      AT&T's GraphViz tools. These can be found at      http://www.research.att.com/sw/tools/graphviz/
Example
require_once 'Image/GraphViz.php';      $graph = new Image_GraphViz();
$graph->add_node('Node1', array('URL'      => 'http://link1',                                      'label'    => 'This is a label',                                      'shape'    => 'box'                                     )                      );      $graph->add_node('Node2', array('URL'      => 'http://link2',                                      'fontsize' => '14'                                     )                      );      $graph->add_node('Node3', array('URL'      => 'http://link3',                                      'fontsize' => '20'                                     )                      );
$graph->add_edge(array('Node1' => 'Node2'), array('label' => 'Edge Label'));      $graph->add_edge(array('Node1' => 'Node2'), array('color' => 'red'));
$graph->image();









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Class Variables



	
	

	
$dot_command =  '/path/to/dot'

	
[line 63]

  Path to GraphViz/dot command

  

	

  

    

      Type:  
      string
    

      

	



	
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$graph = 

	
[line 77]

  Representation of the graph

  

	

  

    

      Type:  
      array
    

      

	



	
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$neato_command =  '/path/to/neato'

	
[line 70]

  Path to GraphViz/neato command

  

	

  

    

      Type:  
      string
    

      

	



	
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Method Detail



	
	
Image_GraphViz (Constructor)   [line 86]

	

    

    

		Image_GraphViz Image_GraphViz(
[boolean
$directed = true], [array
$attributes = array()])
    

    


	
		Constructor


    

  • Access: public
    • 








        
Parameters:

    

    

          

        boolean  
        $directed  
        —
          Directed (true) or undirected (false) graph.
      

          

        array  
        $attributes  
        —
          Attributes of the graph
      

        

    


        
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add_attributes   [line 207]

	

    

    

		void add_attributes(
array
$attributes)
    

    


	
		Add attributes to the graph.


    

  • Access: public
    • 








        
Parameters:

    

    

          

        array  
        $attributes  
        —
          Attributes to be added to the graph.
      

        

    


        
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add_edge   [line 151]

	

    

    

		void add_edge(
array
$edge, [array
$attributes = array()])
    

    


	
		Add an edge to the graph.


    

  • Access: public
    • 








        
Parameters:

    

    

          

        array  
        $edge  
        —
          Start and End node of the edge.
      

          

        array  
        $attributes  
        —
          Attributes of the edge.
      

        

    


        
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add_node   [line 128]

	

    

    

		void add_node(
string
$name, [array
$attributes = array()])
    

    


	
		Add a note to the graph.


    

  • Access: public
    • 








        
Parameters:

    

    

          

        string  
        $name  
        —
          Name of the node.
      

          

        array  
        $attributes  
        —
          Attributes of the node.
      

        

    


        
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image   [line 99]

	

    

    

		void image(
[string
$format = 'svg'])
    

    


	
		Output image of the graph in a given format.


    

  • Access: public
    • 








        
Parameters:

    

    

          

        string  
        $format  
        —
          Format of the output image.                  This may be one of the formats supported by GraphViz.
      

        

    


        
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load   [line 246]

	

    

    

		void load(
string
$file)
    

    


	
		Load graph from file.


    

  • Access: public
    • 








        
Parameters:

    

    

          

        string  
        $file  
        —
          File to load graph from.
      

        

    


        
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parse   [line 282]

	

    

    

		string parse(
)
    

    


	
		Parse the graph into GraphViz markup.


    

  • Return: GraphViz markup
    • 

  • Access: public
    • 








        
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remove_edge   [line 185]

	

    

    

		void remove_edge(
array
$edge)
    

    


	
		Remove an edge from the graph.


    

  • Access: public
    • 








        
Parameters:

    

    

          

        array  
        $edge  
        —
          Start and End node of the edge to be removed.
      

        

    


        
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remove_node   [line 138]

	

    

    

		void remove_node(
Name
$name)
    

    


	
		Remove a node from the graph.


    

  • Access: public
    • 








        
Parameters:

    

    

          

        Name  
        $name  
        —
          of the node to be removed.
      

        

    


        
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save   [line 259]

	

    

    

		mixed save(
[string
$file = ''])
    

    


	
		Save graph to file.


    

  • Return: File the graph was saved to, false on failure.
    • 

  • Access: public
    • 








        
Parameters:

    

    

          

        string  
        $file  
        —
          File to save the graph to.
      

        

    


        
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save_parsed_graph   [line 352]

	

    

    

		mixed save_parsed_graph(
[string
$file = ''])
    

    


	
		Save GraphViz markup to file.


    

  • Return: File to which the GraphViz markup was                  written, false on failure.
    • 

  • Access: public
    • 








        
Parameters:

    

    

          

        string  
        $file  
        —
          File to write the GraphViz markup to.
      

        

    


        
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set_attributes   [line 222]

	

    

    

		void set_attributes(
array
$attributes)
    

    


	
		Set attributes of the graph.


    

  • Access: public
    • 








        
Parameters:

    

    

          

        array  
        $attributes  
        —
          Attributes to be set for the graph.
      

        

    


        
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set_directed   [line 234]

	

    

    

		void set_directed(
boolean
$directed)
    

    


	
		Set directed/undirected flag for the graph.


    

  • Access: public
    • 








        
Parameters:

    

    

          

        boolean  
        $directed  
        —
          Directed (true) or undirected (false) graph.
      

        

    


        
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		    Documentation generated on Fri, 30 Apr 2004 21:43:06 +0200 by phpDocumentor 1.2.3. PEAR Logo Copyright ©  PHP Group 2004.