[ImageGraph] Affichage de légende

[navis84]

Bonjour,

J'utilise la bibliothèque Image_Graph et j'essaie de réaliser un graphique camembert comme celui-ci.

Voici mon code actuel :

Code :

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<?php
/**
 * Usage example for Image_Graph.
 * 
 * Main purpose: 
 * Demonstrate radial gradient fillings
 * 
 * Other: 
 * None specific
 * 
 * $Id: misc03.php,v 1.4 2005/08/03 21:21:53 nosey Exp $
 * 
 * @package Image_Graph
 * @author Jesper Veggerby <pear.nosey@veggerby.dk>
 */
 
require_once 'Image/Graph.php';
 
// create the graph
$Graph =& Image_Graph::factory('graph', array(400, 300));
 
// add a TrueType font
$Font =& $Graph->addNew('font', 'Verdana');
// set the font size to 7 pixels
$Font->setSize(7);
 
$Graph->setFont($Font);
 
// create the plotarea
$Graph->add(
    Image_Graph::vertical(
        Image_Graph::factory('title', array('Structure par type de fonds', 12)),
        Image_Graph::horizontal(
            $Plotarea = Image_Graph::factory('plotarea'),
            $Legend = Image_Graph::factory('legend'),
            70
        ),
        5           
    )
);
 
$Legend->setPlotarea($Plotarea);
 
// create the 1st dataset
$Dataset1 =& Image_Graph::factory('dataset');
$Dataset1->addPoint('Item 1', 905);
$Dataset1->addPoint('Item 2', 95);
$Dataset1->addPoint('Item 3', 15);
/*$Dataset1->addPoint('Poultry', rand(1, 10));
$Dataset1->addPoint('Camels', rand(1, 10));
$Dataset1->addPoint('Other', rand(1, 10));*/
// create the 1st plot as smoothed area chart using the 1st dataset
$Plot =& $Plotarea->addNew('pie', array(&$Dataset1));
$Plotarea->hideAxis();
 
// create a Y data value marker
$Marker =& $Plot->addNew('Image_Graph_Marker_Value', IMAGE_GRAPH_PCT_Y_TOTAL);
// create a pin-point marker type
$PointingMarker =& $Plot->addNew('Image_Graph_Marker_Pointing_Angular', array(-40, &$Marker));
// and use the marker on the 1st plot
$Plot->setMarker($PointingMarker);    
// format value marker labels as percentage values
$Marker->setDataPreprocessor(Image_Graph::factory('Image_Graph_DataPreprocessor_Formatted', '%0.1f%%'));
 
$Plot->Radius = 2;
 
$FillArray =& Image_Graph::factory('Image_Graph_Fill_Array');
$Plot->setFillStyle($FillArray);
/*$FillArray->addNew('gradient', array(IMAGE_GRAPH_GRAD_RADIAL, 'white', 'green'));
$FillArray->addNew('gradient', array(IMAGE_GRAPH_GRAD_RADIAL, 'white', 'blue'));
$FillArray->addNew('gradient', array(IMAGE_GRAPH_GRAD_RADIAL, 'white', 'yellow'));
$FillArray->addNew('gradient', array(IMAGE_GRAPH_GRAD_RADIAL, 'white', 'red'));
$FillArray->addNew('gradient', array(IMAGE_GRAPH_GRAD_RADIAL, 'white', 'orange'));*/
$FillArray->addColor('blue@0.3', 'Color1');
$FillArray->addColor('orange@0.6', 'Color2');
$FillArray->addColor('green@0.6', 'Color3'); 
$FillArray->addColor('yellow@0.6', 'Color4'); 
$FillArray->addColor('black@0.6', 'Color5'); 
$FillArray->addColor('ref@0.6', 'Color6'); 
 
//$Plot->explode(5);
 
$PointingMarker->setLineColor(false);
$Marker->setBorderColor(false);
$Marker->setFillColor(false);
 
// output the Graph
$Graph->done();
?>

Mon problème est que la légende de droite n'apparaît pas (celle avec les couleurs et leurs significations).

Quelqu'un pourrait-il m'aider ?
Merci d'avance !
@+

[navis84]

J'ai un peu avancé et voici le nouveau code actuel :

Code :

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<?php
require_once 'Image/Graph.php';
 
 
				// paramètres du graphique
				$Canvas =& Image_Canvas::factory('png', array('width' => 400, 'height' => 300));      
				$Graph =& Image_Graph::factory('graph', $Canvas); 
 
				// définition du diagramme
				$Plotarea =& $Graph->addNew('plotarea'); 
 
				// définition des polices
				$Font =& $Graph->addNew('ttf_font', 'Verdana');
				$Font->setSize(7);
				$Graph->setFont($Font);
 
				// Titre du graphique
				$Legend =& $Plotarea->addNew('legend');
				//$Legend->setPlotarea($Plotarea);
				$Legend->setAlignment(IMAGE_GRAPH_ALIGN_TOP);
				//$titre = Image_Graph::factory('title', array("test", 11));
				//$Graph->add($titre);
 
// create the 1st dataset
$Dataset1 =& Image_Graph::factory('dataset');
$Dataset1->addPoint('Very Long Item 1', 905);
$Dataset1->addPoint('Item 2', 85);
$Dataset1->addPoint('Item 3', 15);
$Dataset1->addPoint('Item 4', 10);
/*$Dataset1->addPoint('Poultry', rand(1, 10));
$Dataset1->addPoint('Camels', rand(1, 10));
$Dataset1->addPoint('Other', rand(1, 10));*/
// create the 1st plot as smoothed area chart using the 1st dataset
$Plot =& $Plotarea->addNew('pie', array(&$Dataset1));
$Plotarea->hideAxis();
 
// create a Y data value marker
$Marker =& $Plot->addNew('Image_Graph_Marker_Value', IMAGE_GRAPH_PCT_Y_TOTAL);
// create a pin-point marker type
$PointingMarker =& $Plot->addNew('Image_Graph_Marker_Pointing_Angular', array(-40, &$Marker));
// and use the marker on the 1st plot
$Plot->setMarker($PointingMarker);    
// format value marker labels as percentage values
$Marker->setDataPreprocessor(Image_Graph::factory('Image_Graph_DataPreprocessor_Formatted', '%0.1f%%'));
 
$Plot->Radius = 2;
 
$FillArray =& Image_Graph::factory('Image_Graph_Fill_Array');
$Plot->setFillStyle($FillArray);
/*$FillArray->addNew('gradient', array(IMAGE_GRAPH_GRAD_RADIAL, 'white', 'green'));
$FillArray->addNew('gradient', array(IMAGE_GRAPH_GRAD_RADIAL, 'white', 'blue'));
$FillArray->addNew('gradient', array(IMAGE_GRAPH_GRAD_RADIAL, 'white', 'yellow'));
$FillArray->addNew('gradient', array(IMAGE_GRAPH_GRAD_RADIAL, 'white', 'red'));
$FillArray->addNew('gradient', array(IMAGE_GRAPH_GRAD_RADIAL, 'white', 'orange'));*/
$FillArray->addColor('blue@0.3', 'Color1');
$FillArray->addColor('orange@0.6', 'Color2');
$FillArray->addColor('green@0.6', 'Color3'); 
$FillArray->addColor('yellow@0.6', 'Color4'); 
//$FillArray->addColor('black@0.6', 'Color5'); 
//$FillArray->addColor('ref@0.6', 'Color6'); 
 
//$Plot->explode(5);
 
$PointingMarker->setLineColor(false);
$Marker->setBorderColor(false);
$Marker->setFillColor(false);
 
// output the Graph
$Graph->done();
?>

Or, j'aimerais que le graphique soit aligné à gauche et que la légende ne possède pas de cadre... Comment faire ?

[navis84]

J'ai trouvé comment enlever la bordure de la légende :

Code :

$Legend->setLineColor('');

Il ne me reste plus qu'à positionner le graphique (camembert) en bas à gauche de l'image...
Auriez-vous une idée svp ?