481 lines
16 KiB
PHP
481 lines
16 KiB
PHP
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<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
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/**
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* Image_Graph - PEAR PHP OO Graph Rendering Utility.
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*
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* PHP versions 4 and 5
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*
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* LICENSE: This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or (at your
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* option) any later version. This library is distributed in the hope that it
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* will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
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* General Public License for more details. You should have received a copy of
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* the GNU Lesser General Public License along with this library; if not, write
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* to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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* 02111-1307 USA
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*
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* @category Images
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* @package Image_Graph
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* @subpackage Plot
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* @author Jesper Veggerby <pear.nosey@veggerby.dk>
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* @copyright Copyright (C) 2003, 2004 Jesper Veggerby Hansen
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* @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
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* @version CVS: $Id: Pie.php,v 1.17 2005/09/29 18:21:24 nosey Exp $
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* @link http://pear.php.net/package/Image_Graph
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*/
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/**
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* Include file Image/Graph/Plot.php
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*/
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require_once 'Image/Graph/Plot.php';
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/**
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* 2D Piechart.
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*
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* @category Images
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* @package Image_Graph
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* @subpackage Plot
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* @author Jesper Veggerby <pear.nosey@veggerby.dk>
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* @copyright Copyright (C) 2003, 2004 Jesper Veggerby Hansen
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* @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
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* @version Release: @package_version@
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* @link http://pear.php.net/package/Image_Graph
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*/
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class Image_Graph_Plot_Pie extends Image_Graph_Plot
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{
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/**
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* The radius of the 'pie' spacing
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* @access private
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* @var int
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*/
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var $_radius = 3;
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/**
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* Explode pie slices.
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* @access private
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* @var mixed
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*/
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var $_explode = false;
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/**
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* The starting angle of the plot
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* @access private
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* @var int
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*/
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var $_startingAngle = 0;
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/**
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* The angle direction (1 = CCW, -1 = CW)
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* @access private
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* @var int
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*/
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var $_angleDirection = 1;
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/**
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* The diameter of the pie plot
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* @access private
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* @var int
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*/
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var $_diameter = false;
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/**
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* Perform the actual drawing on the legend.
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*
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* @param int $x0 The top-left x-coordinate
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* @param int $y0 The top-left y-coordinate
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* @param int $x1 The bottom-right x-coordinate
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* @param int $y1 The bottom-right y-coordinate
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* @access private
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*/
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function _drawLegendSample($x0, $y0, $x1, $y1)
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{
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$y = ($y0 + $y1) / 2;
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$this->_canvas->pieslice(
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array(
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'x' => $x1,
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'y' => $y,
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'rx' => abs($x1 - $x0) / 2,
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'ry' => abs($y1 - $y0) / 2,
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'v1' => 45,
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'v2' => 315
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)
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);
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}
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/**
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* Calculate marker point data
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*
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* @param array $point The point to calculate data for
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* @param array $nextPoint The next point
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* @param array $prevPoint The previous point
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* @param array $totals The pre-calculated totals, if needed
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* @return array An array containing marker point data
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* @access private
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*/
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function _getMarkerData($point, $nextPoint, $prevPoint, &$totals)
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{
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$point = parent::_getMarkerData($point, $nextPoint, $prevPoint, $totals);
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$y = $totals['CURRENT_Y'];
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if ($this->_angleDirection < 0) {
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$y = $totals['ALL_SUM_Y'] - $y;
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}
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$point['ANGLE'] = 360 * (($y + ($point['Y'] / 2)) / $totals['ALL_SUM_Y']) + $this->_startingAngle;
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$totals['CURRENT_Y'] += $point['Y'];
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$point['ANG_X'] = cos(deg2rad($point['ANGLE']));
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$point['ANG_Y'] = sin(deg2rad($point['ANGLE']));
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$point['AX'] = -10 * $point['ANG_X'];
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$point['AY'] = -10 * $point['ANG_Y'];
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if ((isset($totals['ALL_SUM_Y'])) && ($totals['ALL_SUM_Y'] != 0)) {
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$point['PCT_MIN_Y'] = $point['PCT_MAX_Y'] = (100 * $point['Y'] / $totals['ALL_SUM_Y']);
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}
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$point['LENGTH'] = 10; //$radius;
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$x = $point['X'];
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$explodeRadius = 0;
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if ((is_array($this->_explode)) && (isset($this->_explode[$x]))) {
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$explodeRadius = $this->_explode[$x];
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} elseif (is_numeric($this->_explode)) {
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$explodeRadius = $this->_explode;
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}
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$point['MARKER_X'] = $totals['CENTER_X'] +
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($totals['RADIUS'] + $explodeRadius) * $point['ANG_X'];
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$point['MARKER_Y'] = $totals['CENTER_Y'] +
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($totals['RADIUS'] + $explodeRadius) * $point['ANG_Y'];
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return $point;
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}
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/**
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* Draws markers on the canvas
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*
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* @access private
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*/
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function _drawMarker()
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{
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if ($this->_marker) {
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$totals = $this->_getTotals();
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$totals['CENTER_X'] = (int) (($this->_left + $this->_right) / 2);
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$totals['CENTER_Y'] = (int) (($this->_top + $this->_bottom) / 2);
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$totals['CURRENT_Y'] = 0;
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$number = 0;
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$diameter = $this->_getDiameter();
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$keys = array_keys($this->_dataset);
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foreach ($keys as $key) {
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$dataset =& $this->_dataset[$key];
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if (count($this->_dataset) == 1) {
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$totals['RADIUS0'] = false;
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$totals['RADIUS'] = $diameter / 2;
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} else {
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$dr = $diameter / (2 * count($this->_dataset));
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$totals['RADIUS0'] = $number * $dr + ($number > 0 ? $this->_radius : 0);
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$totals['RADIUS'] = ($number + 1) * $dr;
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}
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$totals['ALL_SUM_Y'] = 0;
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$totals['CURRENT_Y'] = 0;
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$dataset->_reset();
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while ($point = $dataset->_next()) {
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$totals['ALL_SUM_Y'] += $point['Y'];
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}
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$dataset->_reset();
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$currentY = 0;
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while ($point = $dataset->_next()) {
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if ((!is_object($this->_dataSelector)) ||
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($this->_dataSelector->select($point))
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) {
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$point = $this->_getMarkerData(
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$point,
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false,
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false,
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$totals
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);
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if (is_array($point)) {
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$this->_marker->_drawMarker(
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$point['MARKER_X'],
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$point['MARKER_Y'],
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$point
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);
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}
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}
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}
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$number++;
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}
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unset($keys);
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}
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}
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/**
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* Explodes a piece of this pie chart
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*
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* @param int $explode Radius to explode with (or an array)
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* @param string $x The 'x' value to explode or omitted
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*/
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function explode($explode, $x = false)
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{
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if ($x === false) {
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$this->_explode = $explode;
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} else {
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$this->_explode[$x] = $explode;
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}
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}
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/**
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* Set the starting angle of the plot
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*
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* East is 0 degrees
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* South is 90 degrees
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* West is 180 degrees
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* North is 270 degrees
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*
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* It is also possible to specify the direction of the plot angles (i.e. clockwise 'cw' or
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* counterclockwise 'ccw')
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*/
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function setStartingAngle($angle = 0, $direction = 'ccw')
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{
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$this->_startingAngle = ($angle % 360);
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$this->_angleDirection = ($direction == 'ccw' ? 1 : -1);
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}
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/**
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* Set the diameter of the pie plot (i.e. the number of pixels the
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* pie plot should be across)
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*
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* Use 'max' for the maximum possible diameter
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*
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* Use negative values for the maximum possible - minus this value (fx -2
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* to leave 1 pixel at each side)
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*
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* @param mixed @diameter The number of pixels
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*/
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function setDiameter($diameter)
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{
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$this->_diameter = $diameter;
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}
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/**
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* Get the diameter of the plot
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* @return int The number of pixels the diameter is
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* @access private
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*/
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function _getDiameter()
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{
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$diameter = 0;
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if ($this->_diameter === false) {
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$diameter = min($this->height(), $this->width()) * 0.75;
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}
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else {
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if ($this->_diameter === 'max') {
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$diameter = min($this->height(), $this->width());
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}
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elseif ($this->_diameter < 0) {
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$diameter = min($this->height(), $this->width()) + $this->_diameter;
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} else {
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$diameter = $this->_diameter;
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}
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}
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return $diameter;
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}
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/**
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* Output the plot
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*
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* @return bool Was the output 'good' (true) or 'bad' (false).
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* @access private
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*/
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function _done()
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{
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if (parent::_done() === false) {
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return false;
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}
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$number = 0;
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$keys = array_keys($this->_dataset);
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foreach ($keys as $key) {
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$dataset =& $this->_dataset[$key];
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$totalY = 0;
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$dataset->_reset();
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while ($point = $dataset->_next()) {
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$totalY += $point['Y'];
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}
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$centerX = (int) (($this->_left + $this->_right) / 2);
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$centerY = (int) (($this->_top + $this->_bottom) / 2);
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$diameter = $this->_getDiameter();
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if ($this->_angleDirection < 0) {
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$currentY = $totalY;
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} else {
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$currentY = 0; //rand(0, 100)*$totalY/100;
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}
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$dataset->_reset();
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if (count($this->_dataset) == 1) {
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$radius0 = false;
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$radius1 = $diameter / 2;
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} else {
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$dr = $diameter / (2 * count($this->_dataset));
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$radius0 = $number * $dr + ($number > 0 ? $this->_radius : 0);
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$radius1 = ($number + 1) * $dr;
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}
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while ($point = $dataset->_next()) {
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$angle1 = 360 * ($currentY / $totalY) + $this->_startingAngle;
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$currentY += $this->_angleDirection * $point['Y'];
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$angle2 = 360 * ($currentY / $totalY) + $this->_startingAngle;
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$x = $point['X'];
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$id = $point['ID'];
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$dX = 0;
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$dY = 0;
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$explodeRadius = 0;
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if ((is_array($this->_explode)) && (isset($this->_explode[$x]))) {
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$explodeRadius = $this->_explode[$x];
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} elseif (is_numeric($this->_explode)) {
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$explodeRadius = $this->_explode;
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}
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if ($explodeRadius > 0) {
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$dX = $explodeRadius * cos(deg2rad(($angle1 + $angle2) / 2));
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$dY = $explodeRadius * sin(deg2rad(($angle1 + $angle2) / 2));
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}
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$ID = $point['ID'];
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$this->_getFillStyle($ID);
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$this->_getLineStyle($ID);
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$this->_canvas->pieslice(
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$this->_mergeData(
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$point,
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array(
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'x' => $centerX + $dX,
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'y' => $centerY + $dY,
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'rx' => $radius1,
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'ry' => $radius1,
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'v1' => $angle1,
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'v2' => $angle2,
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'srx' => $radius0,
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'sry' => $radius0
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)
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)
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);
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}
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$number++;
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}
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||
|
|
unset($keys);
|
||
|
|
$this->_drawMarker();
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Draw a sample for use with legend
|
||
|
|
*
|
||
|
|
* @param array $param The parameters for the legend
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _legendSample(&$param)
|
||
|
|
{
|
||
|
|
if (is_array($this->_dataset)) {
|
||
|
|
|
||
|
|
$this->_canvas->startGroup(get_class($this) . '_' . $this->_title);
|
||
|
|
|
||
|
|
$totals = $this->_getTotals();
|
||
|
|
$totals['CENTER_X'] = (int) (($this->_left + $this->_right) / 2);
|
||
|
|
$totals['CENTER_Y'] = (int) (($this->_top + $this->_bottom) / 2);
|
||
|
|
$totals['RADIUS'] = min($this->height(), $this->width()) * 0.75 * 0.5;
|
||
|
|
$totals['CURRENT_Y'] = 0;
|
||
|
|
|
||
|
|
if (is_a($this->_fillStyle, "Image_Graph_Fill")) {
|
||
|
|
$this->_fillStyle->_reset();
|
||
|
|
}
|
||
|
|
|
||
|
|
$count = 0;
|
||
|
|
$keys = array_keys($this->_dataset);
|
||
|
|
foreach ($keys as $key) {
|
||
|
|
$dataset =& $this->_dataset[$key];
|
||
|
|
$count++;
|
||
|
|
|
||
|
|
$dataset->_reset();
|
||
|
|
while ($point = $dataset->_next()) {
|
||
|
|
$caption = $point['X'];
|
||
|
|
|
||
|
|
$this->_canvas->setFont($param['font']);
|
||
|
|
$width = 20 + $param['width'] + $this->_canvas->textWidth($caption);
|
||
|
|
$param['maxwidth'] = max($param['maxwidth'], $width);
|
||
|
|
$x2 = $param['x'] + $width;
|
||
|
|
$y2 = $param['y'] + $param['height']+5;
|
||
|
|
|
||
|
|
if ((($param['align'] & IMAGE_GRAPH_ALIGN_VERTICAL) != 0) && ($y2 > $param['bottom'])) {
|
||
|
|
$param['y'] = $param['top'];
|
||
|
|
$param['x'] = $x2;
|
||
|
|
$y2 = $param['y'] + $param['height'];
|
||
|
|
} elseif ((($param['align'] & IMAGE_GRAPH_ALIGN_VERTICAL) == 0) && ($x2 > $param['right'])) {
|
||
|
|
$param['x'] = $param['left'];
|
||
|
|
$param['y'] = $y2;
|
||
|
|
$x2 = $param['x'] + 20 + $param['width'] + $this->_canvas->textWidth($caption);
|
||
|
|
}
|
||
|
|
|
||
|
|
$x = $x0 = $param['x'];
|
||
|
|
$y = $param['y'];
|
||
|
|
$y0 = $param['y'] - $param['height']/2;
|
||
|
|
$x1 = $param['x'] + $param['width'];
|
||
|
|
$y1 = $param['y'] + $param['height']/2;
|
||
|
|
|
||
|
|
if (!isset($param['simulate'])) {
|
||
|
|
$this->_getFillStyle($point['ID']);
|
||
|
|
$this->_getLineStyle($point['ID']);
|
||
|
|
$this->_drawLegendSample($x0, $y0, $x1, $y1);
|
||
|
|
|
||
|
|
if (($this->_marker) && ($dataset) && ($param['show_marker'])) {
|
||
|
|
$prevPoint = $dataset->_nearby(-2);
|
||
|
|
$nextPoint = $dataset->_nearby();
|
||
|
|
|
||
|
|
$p = $this->_getMarkerData($point, $nextPoint, $prevPoint, $totals);
|
||
|
|
if (is_array($point)) {
|
||
|
|
$p['MARKER_X'] = $x+$param['width']/2;
|
||
|
|
$p['MARKER_Y'] = $y;
|
||
|
|
unset ($p['AVERAGE_Y']);
|
||
|
|
$this->_marker->_drawMarker($p['MARKER_X'], $p['MARKER_Y'], $p);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$this->write($x + $param['width'] +10, $y, $caption, IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_LEFT, $param['font']);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (($param['align'] & IMAGE_GRAPH_ALIGN_VERTICAL) != 0) {
|
||
|
|
$param['y'] = $y2;
|
||
|
|
} else {
|
||
|
|
$param['x'] = $x2;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
unset($keys);
|
||
|
|
$this->_canvas->endGroup();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
?>
|