2 /*=====================================================================*\
3 || ###################################################################
4 || # Blue Static ISSO Framework
5 || # Copyright ©2002-[#]year[#] Blue Static
7 || # This program is free software; you can redistribute it and/or modify
8 || # it under the terms of the GNU General Public License as published by
9 || # the Free Software Foundation; version [#]gpl[#] of the License.
11 || # This program is distributed in the hope that it will be useful, but
12 || # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13 || # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 || # You should have received a copy of the GNU General Public License along
17 || # with this program; if not, write to the Free Software Foundation, Inc.,
18 || # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
19 || ###################################################################
20 \*=====================================================================*/
23 * Graphing System: Pie Chart (GraphPie.php)
28 require_once('ISSO/Graph.php');
31 * Graphing System: Pie Chart
33 * This framework creates pie charts as PNG image strings. Simply add to
34 * the data set and graph to get the byte stream returned.
37 * @copyright Copyright (c)2002 - [#]year[#], Blue Static
42 class BSGraphPie
extends BSGraph
45 * Graphing data set; 2D array of
46 * array(NAME, PERCENT, COLOR)
49 protected $dataset = array();
51 // ###################################################################
53 * Graphs the actual graph and returns a byte stream
55 * @return string Byte stream
57 public function graph()
59 $colors['black'] = imagecolorallocate($this->image
, 0, 0, 0);
60 $colors['white'] = imagecolorallocate($this->image
, 255, 255, 255);
61 $colors['grey'] = imagecolorallocate($this->image
, 121, 121, 123);
65 $diameter = $this->dimensions
['height'] - (5 * $graphpadding);
66 $radius = $diameter / 2;
67 $graphstart = $graphpadding +
imagefontheight(5) +
$graphpadding;
71 imagefill($this->image
, 0, 0, $colors['white']);
74 imagestring($this->image
, 5, ($this->dimensions
['width'] - (imagefontwidth(5) * strlen($this->title
))) / 2, $graphpadding, $this->title
, $colors['black']);
77 'x' => ($this->legend ?
($radius +
$graphpadding) : ($this->dimensions
['width'] / 2)),
78 'y' => ($this->dimensions
['height'] / 2) +
$graphpadding
82 imageline($this->image
, 0, 0, 0, $this->dimensions
['height'], $colors['black']); // left
83 imageline($this->image
, 0, $this->dimensions
['height'] - 1, $this->dimensions
['width'], $this->dimensions
['height'] - 1, $colors['black']); // bottom
84 imageline($this->image
, $this->dimensions
['width'] - 1, 0, $this->dimensions
['width'] - 1, $this->dimensions
['height'], $colors['black']); // right
85 imageline($this->image
, 0, 0, $this->dimensions
['width'], 0, $colors['black']); // top
87 $legx = (2 * $graphpadding) +
$diameter;
91 foreach ($this->dataset
AS $plot)
93 $deg = (360 / 100) * $plot[1];
94 imagefilledarc($this->image
, $center['x'], $center['y'], $diameter, $diameter, $lastdeg, $deg +
$lastdeg, $plot[2], IMG_ARC_PIE
);
95 imagefilledarc($this->image
, $center['x'], $center['y'], $diameter, $diameter, $lastdeg, $deg +
$lastdeg, $colors['grey'], IMG_ARC_EDGED | IMG_ARC_NOFILL
);
101 $legx +
1 +
$graphspacing, $graphstart +
1 +
$graphspacing +
$boxoffset, // top left
102 $legx +
1 +
$graphspacing, $graphstart +
1 +
$graphspacing +
$boxoffset +
$legendbox, // bottom left
103 $legx +
1 +
$graphspacing +
$legendbox, $graphstart +
1 +
$graphspacing +
$boxoffset +
$legendbox, // bottom right
104 $legx +
1 +
$graphspacing +
$legendbox, $graphstart +
1 +
$graphspacing +
$boxoffset // top right
106 imagefilledpolygon($this->image
, $box, 4, $plot[2]);
108 imagestring($this->image
, 2, ($legx +
1 +
$graphspacing +
$legendbox +
$graphspacing), ($graphstart +
$graphspacing +
$boxoffset), $plot[0] . " ($plot[1]%)", $colors['black']);
110 $boxoffset +
= $graphspacing +
$legendbox;
114 // draw the ellipse (do here so it cleans up the arc edges)
115 imageellipse($this->image
, $center['x'], $center['y'], $diameter, $diameter, $colors['grey']);
120 imageline($this->image
, $legx, $graphstart, $this->dimensions
['width'] - $graphpadding, $graphstart, $colors['black']); // top
121 imageline($this->image
, $legx, $graphstart, $legx, $legy = ($graphstart +
$graphspacing +
$boxoffset +
1), $colors['black']); // left
122 imageline($this->image
, $legx, $legy, $this->dimensions
['width'] - $graphpadding, $legy, $colors['black']); // bottom
123 imageline($this->image
, $this->dimensions
['width'] - $graphpadding, $graphstart, $this->dimensions
['width'] - $graphpadding, $legy, $colors['black']); // right
127 imagepng($this->image
);
128 $data = ob_get_contents();
131 $data = ob_get_clean();
139 // ###################################################################
141 * Adds an entry to the data set without specifying a color to add.
142 * This is the standard method as the color should only be overridden
145 * @param string Data column name
146 * @param integer Percentage of 100
148 public function addDataSet($name, $percent)
150 $this->dataset
[] = array($name, intval($percent), $this->_fetchColor());
153 // ###################################################################
155 * Adds an entry ot the data set with specifying a color. This works
156 * the same as addDataSet() but requires an array() as the 3rd parameter
159 * @param string Data column name
160 * @param integer Percent of 100
161 * @param array Array of R,G,B values
163 public function addDataSetColor($name, $percent, $color)
165 $this->dataset
[] = array($name, intval($percent), imagecolorallocate($this->image
, $color[0], $color[1], $color[2]));
169 /*=====================================================================*\
170 || ###################################################################
173 || ###################################################################
174 \*=====================================================================*/