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-rw-r--r--config/dspam/pear/Image/Graph/Plot/Smoothed/Area.php145
1 files changed, 145 insertions, 0 deletions
diff --git a/config/dspam/pear/Image/Graph/Plot/Smoothed/Area.php b/config/dspam/pear/Image/Graph/Plot/Smoothed/Area.php
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+<?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/Smoothed/Bezier.php
+ */
+require_once 'Image/Graph/Plot/Smoothed/Bezier.php';
+
+/**
+ * Bezier smoothed area chart
+ *
+ * Similar to an {@link Image_Graph_Plot_Area}, but the interconnecting lines
+ * between two datapoints are smoothed using a Bezier curve, which enables the
+ * chart to appear as a nice curved plot instead of the sharp edges of a
+ * conventional {@link Image_Graph_Plot_Area}. 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_Smoothed_Area extends Image_Graph_Plot_Smoothed_Bezier
+{
+
+ /**
+ * 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)
+ {
+
+ $this->_canvas->addVertex(array('x' => $x0, 'y' => $y1));
+ $this->_addSamplePoints($x0, $y0, $x1, $y1);
+ $this->_canvas->addVertex(array('x' => $x1, 'y' => $y1));
+ $this->_canvas->polygon(array('connect' => true));
+ }
+
+ /**
+ * Output the Bezier smoothed plot as an Area Chart
+ *
+ * @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);
+
+ $keys = array_keys($this->_dataset);
+ foreach ($keys as $key) {
+ $dataset =& $this->_dataset[$key];
+ $dataset->_reset();
+ $first = true;
+ while ($p1 = $dataset->_next()) {
+ $p0 = $dataset->_nearby(-2);
+ $p2 = $dataset->_nearby(0);
+ $p3 = $dataset->_nearby(1);
+ if ($first) {
+ $p = $p1;
+ $p['Y'] = '#min_pos#';
+ $x = $this->_pointX($p);
+ $y = $this->_pointY($p);
+ $this->_canvas->addVertex(array('x' => $x, 'y' => $y));
+ }
+
+ if ($p2) {
+ $cp = $this->_getControlPoints($p1, $p0, $p2, $p3);
+ $this->_canvas->addSpline(
+ array(
+ 'x' => $cp['X'],
+ 'y' => $cp['Y'],
+ 'p1x' => $cp['P1X'],
+ 'p1y' => $cp['P1Y'],
+ 'p2x' => $cp['P2X'],
+ 'p2y' => $cp['P2Y']
+ )
+ );
+ } else {
+ $x = $this->_pointX($p1);
+ $y = $this->_pointY($p1);
+ $this->_canvas->addVertex(array('x' => $x, 'y' => $y));
+ }
+ $lastPoint = $p1;
+ $first = false;
+ }
+ $lastPoint['Y'] = '#min_pos#';
+ $x = $this->_pointX($lastPoint);
+ $y = $this->_pointY($lastPoint);
+ $this->_canvas->addVertex(array('x' => $x, 'y' => $y));
+
+ $this->_getFillStyle($key);
+ $this->_getLineStyle($key);
+ $this->_canvas->polygon(array('connect' => true));
+ }
+ unset($keys);
+ $this->_drawMarker();
+ $this->_clip(false);
+ $this->_canvas->endGroup();
+ return true;
+ }
+
+}
+
+?> \ No newline at end of file