Graph the result of an array containing the data

Get the data from an array, a CSV, a JSON and draw it !

$graph = new Domframework\Graph ();
// For CSV:
$graph->data->csv ("\"\",Jan,Feb,Mar,Apr,May\n".
                 "Prod,200,210,NO,230,240\n".
                 "Return,5,4,3,2,1");
// For JSON:
$graph->data->json (json_encode (array (array ("T1","1","2","3","4"),
                                        array ("T2","5","6","7","8"))));
// For indexed array:
$graph->data->arrayIndexed (array (array ("T1","1","2","3","4"),
                                   array ("T2","5","6","7","8")));
// For associated array:
$graph->data->arrayAssociative (array (array ("t1"=>"11","t2"=>"12","t3"=>"13"),
                                       array ("t1"=>"21","t2"=>"22","t3"=>"23"),
                                       array ("t1"=>"31","t2"=>"32","t3"=>"33")));

$graph->drawImage();

The styles

The series can be drawn by different styles : line, linePoints, points.

$graph = new Domframework\Graph ();
$graph->data->csv ("\"\",Jan,Feb,Mar,Apr,May\n".
                 "Prod,200,210,NO,230,240\n".
                 "Return,5,4,3,2,1")
            ->titlesOnFirstLine (true)
            ->titlesOnFirstColumn (true)
            ->horizontalData (true);
$graph->series->serie ("Return")->axisYsecondary(true);
$graph->drawImage ();

$graph = new Domframework\Graph ();
$graph->data->csv ("\"\",Jan,Feb,Mar,Apr,May\n".
                 "Prod,200,210,NO,230,240\n".
                 "Return,5,4,3,2,1")
            ->titlesOnFirstLine (true)
            ->titlesOnFirstColumn (true)
            ->horizontalData (true);
$graph->series->serie ("Return")->axisYsecondary(true);
$graph->style ("linePoints");
$graph->drawImage ();

$graph = new Domframework\Graph ();
$graph->data->csv ("\"\",Jan,Feb,Mar,Apr,May\n".
                 "Prod,200,210,NO,230,240\n".
                 "Return,5,4,3,2,1")
            ->titlesOnFirstLine (true)
            ->titlesOnFirstColumn (true)
            ->horizontalData (true);
$graph->series->serie ("Return")->axisYsecondary(true);
$graph->style ("points");
$graph->drawImage ();

The integrated objects

The graph object carry some objects specialized in functions:

• The graph object manage all the other ones. It allow to define the default style, the height and width of the drawn graph, the title position

  $graph->style ("linePoints")
        ->width (300)
        ->height (200);

• The data object: manage the input of the data (from array, CSV, JSON). Allow to manage if there is a title on first line or column with autodetection. It also permit to say if the data are stored horizontally or vertically
• The title object: manage the title of the graph, with font, size, color and text.

  $graph->title->text ("The SUPER Title")
               ->color ("orange")
               ->fontsize (10)
               ->fontfile ("/usr/share/fonts/truetype/ttf-bitstream-vera/VeraBd.ttf");

Example :

$graph = new Domframework\Graph ();
$graph->title->text ("The SUPER Title")
           ->color ("orange")
           ->fontsize (10)
           ->fontfile ("/usr/share/fonts/truetype/ttf-bitstream-vera/VeraBd.ttf");
$graph->data->csv ("\"\",Jan,Feb,Mar,Apr,May\n".
                 "Prod,200,210,NO,230,240\n".
                 "Return,5,4,3,2,1")
            ->titlesOnFirstLine (true)
            ->titlesOnFirstColumn (true)
            ->horizontalData (true);
$graph->series->serie ("Return")->axisYsecondary(true);
$graph->style ("points");
$graph->drawImage ();

• The legend object: manage the display of a legend, with samples, series names, background-color, font and font size.

  $graph->legend->show (true);

Example :

$graph = new Domframework\Graph ();
$graph->title->text ("Display the legend")
           ->fontsize (10)
           ->fontfile ("/usr/share/fonts/truetype/ttf-bitstream-vera/VeraBd.ttf");
$graph->data->csv ("\"\",Jan,Feb,Mar,Apr,May\n".
                 "Prod,200,210,NO,230,240\n".
                 "Return,5,4,3,2,1")
            ->titlesOnFirstLine (true)
            ->titlesOnFirstColumn (true)
            ->horizontalData (true);
$graph->series->serie ("Return")->axisYsecondary(true);
$graph->style ("linePoints");
$graph->legend->show (true);
$graph->drawImage ();

• The series object manage the data series. It is an abstraction class.
• The serie object, provided by the $graph->series->serie ("NAME"), allow to manage the serie. The serie can be drawn on the secondary axis, can have a maximum or minimum value, can have a style different of the general one defined in graph object. It allow to define if the provided data are numerical or labeled

  $graph->series->serie ("Return")->style ("line")
                                  ->axisYsecondary(true);

Example :

$graph = new Domframework\Graph ();
$graph->style ("linePoints");
$graph->title->text ("Default style in linePoints, one in line")
           ->fontsize (10)
           ->fontfile ("/usr/share/fonts/truetype/ttf-bitstream-vera/VeraBd.ttf");
$graph->data->csv ("\"\",Jan,Feb,Mar,Apr,May\n".
                 "Prod,200,210,NO,230,240\n".
                 "Return,5,4,3,2,1")
            ->titlesOnFirstLine (true)
            ->titlesOnFirstColumn (true)
            ->horizontalData (true);
$graph->series->serie ("Return")->axisYsecondary(true)->style("line");
$graph->drawImage ();

• The axis object allow to manage the colors, fonts (type and size). The objects defined can be used by $graph->axisX, $graph->axisY1 or $graph->axisY2

  $graph->axisY1->min (10)->max (300)->numerical (true);
  $graph->axisY2->min (-10)->max (10)->numerical (true);
  $graph->axisY1->gridColor ("blue");
  $graph->axisY2->gridColor ("blue");
  $graph->axisX->gridColor ("blue");

Example :

$graph = new Domframework\Graph ();
$graph->title->text ("Grids in blue color")
           ->fontsize (10)
           ->fontfile ("/usr/share/fonts/truetype/ttf-bitstream-vera/VeraBd.ttf");
$graph->data->csv ("\"\",Jan,Feb,Mar,Apr,May\n".
                 "Prod,200,210,NO,230,240\n".
                 "Return,5,4,3,2,1")
            ->titlesOnFirstLine (true)
            ->titlesOnFirstColumn (true)
            ->horizontalData (true);
$graph->series->serie ("Return")->axisYsecondary(true);
$graph->style ("points");
$graph->axisY1->min (10)->max (300)->numerical (true);
$graph->axisY2->min (-10)->max (10)->numerical (true);
$graph->axisY1->gridColor ("blue");
$graph->axisY2->gridColor ("blue");
$graph->axisX->gridColor ("blue");
$graph->drawImage ();

The class definition

Class Domframework\Graph

Namespace Domframework

Description

/**
 This class allow to generate an image which is a graphic. A graphic takes
 an array of values and draw the lines/histo... like a spreadsheet
 graph methods are :
   ->height ($height) or ->width ($width) The heigh/width of the graph

Properties

public $axisX;

/**
 The X axis object

public $axisY1;

/**
 The main Y axis object

public $axisY2;

/**
 The optional secondary Y axis object

public $data;

/**
 The data object

public $legend;

/**
 The legend object

public $series;

/**
 The series object

public $title;

/**
 The graph title object

Methods

public function __construct ()

/**
 Constructor : create the objects

public function bgcolor ( $bgcolor=null)

/**
 Set the background-color of the graph if the parameter is provided.
 Get the background-color of the graph if the parameter is not provided
 @param string|null $bgcolor The background-color of the graph

public function drawBase64 ()

/**
 Return the image coded in base64
 @return string The base64 string

public function drawImage ()

/**
 Draw the graph to the screen with the previous defined parameters

public function height ( $height=null)

/**
 Set the height of the graph if the parameter is provided.
 Get the height of the graph if the parameter is not provided
 @param integer|null $height The height of the graph

public function style ( $style=null)

/**
 Set the default style of the graph if the parameter is provided.
 Get the default style of the graph if the parameter is not provided
 @param string|null $style The style of the graph

public function titlePosition ( $titlePosition=null)

/**
 Set the title position of the graph if the parameter is provided.
 Get the title position of the graph if the parameter is not provided
 @param string|null $titlePosition The title position of the graph

public function width ( $width=null)

/**
 Set the width of the graph if the parameter is provided.
 Get the width of the graph if the parameter is not provided
 @param integer|null $width The width of the graph