- added missing PEAR Image dependency

1 files changed, 204 insertions, 0 deletions

diff --git a/packages/dspam/pear/Image/Graph/Axis/Radar.php b/packages/dspam/pear/Image/Graph/Axis/Radar.php
new file mode 100644
index 00000000..7348254c
--- /dev/null
+++ b/packages/dspam/pear/Image/Graph/Axis/Radar.php
@@ -0,0 +1,204 @@
+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * Class for axis handling.
+ *
+ * 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 Axis
+ * @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/Axis/Category.php
+ */
+require_once 'Image/Graph/Axis/Category.php';
+
+/**
+ * Displays an 'X'-axis in a radar plot chart.
+ *
+ * This axis maps the number of elements in the dataset to a angle (from 0-
+ * 360 degrees). Displaying the axis consist of drawing a number of lines from
+ * center to the edge of the 'circle' than encloses the radar plot. The labels
+ * are drawn on the 'ends' of these radial lines.
+ *
+ * @category   Images
+ * @package    Image_Graph
+ * @subpackage Axis
+ * @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_Axis_Radar extends Image_Graph_Axis_Category
+{
+
+    /**
+     * Specifies the number of pixels, the labels is offsetted from the end of
+     * the axis
+     *
+     * @var int
+     * @access private
+     */
+    var $_distanceFromEnd = 5;
+
+    /**
+     * Gets the minimum value the axis will show.
+     *
+     * This is always 0
+     *
+     * @return double The minumum value
+     * @access private
+     */
+    function _getMinimum()
+    {
+        return 0;
+    }
+
+    /**
+     * Gets the maximum value the axis will show.
+     *
+     * This is always the number of labels passed to the constructor.
+     *
+     * @return double The maximum value
+     * @access private
+     */
+    function _getMaximum()
+    {
+        return count($this->_labels);
+    }
+
+    /**
+     * Calculate the delta value (the number of pixels representing one unit
+     * on the axis)
+     *
+     * @return double The label interval
+     * @access private
+     */
+    function _calcDelta()
+    {
+        if (abs($this->_getMaximum() - $this->_getMinimum()) == 0) {
+            $this->_delta = false;
+        } else {
+            $this->_delta = 360 / ($this->_getMaximum() - $this->_getMinimum());
+        }                
+    }    
+
+    /**
+     * Get the pixel position represented by a value on the canvas
+     *
+     * @param double $value the value to get the pixel-point for
+     * @return double The pixel position along the axis
+     * @access private
+     */
+    function _point($value)
+    {
+        return (90 + (int) ($this->_value($value) * $this->_delta)) % 360;
+    }
+
+    /**
+     * Get the size in pixels of the axis.
+     *
+     * For a radar plot this is always 0
+     *
+     * @return int The size of the axis
+     * @access private
+     */
+    function _size()
+    {
+        return 0;
+    }
+
+    /**
+     * Sets the distance from the end of the category lines to the label.
+     *
+     * @param int $distance The distance in pixels
+     */
+    function setDistanceFromEnd($distance = 5)
+    {
+        $this->_distanceFromEnd = $distance;
+    }
+
+    /**
+     * Draws axis lines.
+     *
+     * @access private
+     */
+    function _drawAxisLines()
+    {
+    }
+
+    /**
+     * Output an axis tick mark.
+     *
+     * @param int $value The value to output
+     * @access private
+     */
+    function _drawTick($value, $level = 1)
+    {
+        $centerX = (int) (($this->_left + $this->_right) / 2);
+        $centerY = (int) (($this->_top + $this->_bottom) / 2);
+
+        $radius = min($this->height(), $this->width()) / 2;
+
+        $endPoint = array ('X' => $value, 'Y' => '#max#');
+        $dX = $this->_pointX($endPoint);
+        $dY = $this->_pointY($endPoint);
+
+        $offX = ($dX - $centerX);
+        $offY = ($dY - $centerY);
+
+        $hyp = sqrt($offX*$offX + $offY*$offY);
+        if ($hyp != 0) {
+            $scale = $this->_distanceFromEnd / $hyp;
+        } else {
+            $scale = 1;
+        }
+
+        $adX = $dX + $offX * $scale;
+        $adY = $dY + $offY * $scale;
+
+        if (is_object($this->_dataPreProcessor)) {
+            $labelText = $this->_dataPreProcessor->_process($value);
+        } else {
+            $labelText = $value;
+        }
+
+        if ((abs($dX - $centerX) < 1.5) && ($dY < $centerY)) {
+            $align = IMAGE_GRAPH_ALIGN_BOTTOM + IMAGE_GRAPH_ALIGN_CENTER_X;
+        } elseif ((abs($dX - $centerX) < 1.5) && ($dY > $centerY)) {
+            $align = IMAGE_GRAPH_ALIGN_TOP + IMAGE_GRAPH_ALIGN_CENTER_X;
+        } elseif ($dX < $centerX) {
+            $align = IMAGE_GRAPH_ALIGN_RIGHT + IMAGE_GRAPH_ALIGN_CENTER_Y;
+        } else {
+            $align = IMAGE_GRAPH_ALIGN_LEFT + IMAGE_GRAPH_ALIGN_CENTER_Y;
+        }
+        $this->write($adX, $adY, $labelText, $align);
+
+        $this->_getLineStyle();
+        $this->_canvas->line(array('x0' => $centerX, 'y0' => $centerY, 'x1' => $dX, 'y1' => $dY));
+    }
+
+}
+
+?>
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