diff options
Diffstat (limited to 'config/dspam/pear/Image/Graph/Plot/Area.php')
| -rw-r--r-- | config/dspam/pear/Image/Graph/Plot/Area.php | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/config/dspam/pear/Image/Graph/Plot/Area.php b/config/dspam/pear/Image/Graph/Plot/Area.php new file mode 100644 index 00000000..a5288e1a --- /dev/null +++ b/config/dspam/pear/Image/Graph/Plot/Area.php @@ -0,0 +1,194 @@ +<?php + +/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */ + +/** + * Image_Graph - PEAR PHP OO Graph Rendering Utility. + * + * PHP versions 4 and 5 + * + * LICENSE: This library is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 2.1 of the License, or (at your + * option) any later version. This library is distributed in the hope that it + * will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser + * General Public License for more details. You should have received a copy of + * the GNU Lesser General Public License along with this library; if not, write + * to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + * 02111-1307 USA + * + * @category Images + * @package Image_Graph + * @subpackage Plot + * @author Jesper Veggerby <pear.nosey@veggerby.dk> + * @copyright Copyright (C) 2003, 2004 Jesper Veggerby Hansen + * @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1 + * @version CVS: $Id$ + * @link http://pear.php.net/package/Image_Graph + */ + +/** + * Include file Image/Graph/Plot.php + */ +require_once 'Image/Graph/Plot.php'; + +/** + * Area Chart plot. + * + * An area chart plots all data points similar to a {@link + * Image_Graph_Plot_Line}, but the area beneath the line is filled and the whole + * area 'the-line', 'the right edge', 'the x-axis' and 'the left edge' is + * bounded. Smoothed charts are only supported with non-stacked types + * + * @category Images + * @package Image_Graph + * @subpackage Plot + * @author Jesper Veggerby <pear.nosey@veggerby.dk> + * @copyright Copyright (C) 2003, 2004 Jesper Veggerby Hansen + * @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1 + * @version Release: @package_version@ + * @link http://pear.php.net/package/Image_Graph + */ +class Image_Graph_Plot_Area extends Image_Graph_Plot +{ + + /** + * Perform the actual drawing on the legend. + * + * @param int $x0 The top-left x-coordinate + * @param int $y0 The top-left y-coordinate + * @param int $x1 The bottom-right x-coordinate + * @param int $y1 The bottom-right y-coordinate + * @access private + */ + function _drawLegendSample($x0, $y0, $x1, $y1) + { + $dx = abs($x1 - $x0) / 3; + $dy = abs($y1 - $y0) / 3; + $this->_canvas->addVertex(array('x' => $x0, 'y' => $y1)); + $this->_canvas->addVertex(array('x' => $x0, 'y' => $y0 + $dy)); + $this->_canvas->addVertex(array('x' => $x0 + $dx, 'y' => $y0)); + $this->_canvas->addVertex(array('x' => $x0 + 2*$dx, 'y' => $y0 + 2*$dy)); + $this->_canvas->addVertex(array('x' => $x1, 'y' => $y0 + $dy)); + $this->_canvas->addVertex(array('x' => $x1, 'y' => $y1)); + $this->_canvas->polygon(array('connect' => true)); + } + + /** + * Output the plot + * + * @return bool Was the output 'good' (true) or 'bad' (false). + * @access private + */ + function _done() + { + if (parent::_done() === false) { + return false; + } + + $this->_canvas->startGroup(get_class($this) . '_' . $this->_title); + + $this->_clip(true); + + $base = array(); + if ($this->_multiType == 'stacked') { + reset($this->_dataset); + $key = key($this->_dataset); + $dataset =& $this->_dataset[$key]; + + $first = $dataset->first(); + $point = array ('X' => $first['X'], 'Y' => '#min_pos#'); + $base[] = array(); + $base[] = $this->_pointY($point); + $first = $this->_pointX($point); + $base[] = $first; + + $last = $dataset->last(); + $point = array ('X' => $last['X'], 'Y' => '#min_pos#'); + $base[] = array(); + $base[] = $this->_pointY($point); + $base[] = $this->_pointX($point); + + $current = array(); + } + + $minYaxis = $this->_parent->_getMinimum($this->_axisY); + $maxYaxis = $this->_parent->_getMaximum($this->_axisY); + + $keys = array_keys($this->_dataset); + foreach ($keys as $key) { + $dataset =& $this->_dataset[$key]; + $dataset->_reset(); + if ($this->_multiType == 'stacked') { + $plotarea = array_reverse($base); + $base = array(); + while ($point = $dataset->_next()) { + $x = $point['X']; + $p = $point; + if (isset($current[$x])) { + $p['Y'] += $current[$x]; + } else { + $current[$x] = 0; + } + $x1 = $this->_pointX($p); + $y1 = $this->_pointY($p); + $plotarea[] = $x1; + $plotarea[] = $y1; + $plotarea[] = $point; + $base[] = array(); + $base[] = $y1; + $base[] = $x1; + $current[$x] += $point['Y']; + } + } else { + $first = true; + $plotarea = array(); + while ($point = $dataset->_next()) { + if ($first) { + $firstPoint = array ('X' => $point['X'], 'Y' => '#min_pos#'); + $plotarea[] = $this->_pointX($firstPoint); + $plotarea[] = $this->_pointY($firstPoint); + $plotarea[] = array(); + } + $plotarea[] = $this->_pointX($point); + $plotarea[] = $this->_pointY($point); + $plotarea[] = $point; + $lastPoint = $point; + $first = false; + } + $endPoint['X'] = $lastPoint['X']; + $endPoint['Y'] = '#min_pos#'; + $plotarea[] = $this->_pointX($endPoint); + $plotarea[] = $this->_pointY($endPoint); + $plotarea[] = array(); + } + + reset($plotarea); + while (list(, $x) = each($plotarea)) { + list(, $y) = each($plotarea); + list(, $data) = each($plotarea); + $this->_canvas->addVertex( + $this->_mergeData( + $data, + array('x' => $x, 'y' => $y) + ) + ); + } + + $this->_getFillStyle($key); + $this->_getLineStyle($key); + $this->_canvas->polygon(array('connect' => true, 'map_vertices' => true)); + } + unset($keys); + $this->_drawMarker(); + $this->_clip(false); + + $this->_canvas->endGroup(); + + return true; + } + +} + +?>
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