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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 Dataset
- * @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/Dataset.php
- */
-require_once 'Image/Graph/Dataset.php';
-
-/**
- * Trivial data set, simply add points (x, y) 1 by 1
- *
- * @category Images
- * @package Image_Graph
- * @subpackage Dataset
- * @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_Dataset_Trivial extends Image_Graph_Dataset
-{
-
- /**
- * Data storage
- * @var array
- * @access private
- */
- var $_data;
-
- /**
- * Image_Graph_Dataset_Trivial [Constructor]
- *
- * Pass an associated array ($data[$x] = $y) to the constructor for easy
- * data addition. Alternatively (if multiple entries with same x value is
- * required) pass an array with (x, y) values: $data[$id] = array('x' => $x,
- * 'y' => $y);
- *
- * NB! If passing the 1st type array at this point, the x-values will also
- * be used for ID tags, i.e. when using {@link Image_Graph_Fill_Array}. In
- * the 2nd type the key/index of the "outermost" array will be the id tag
- * (i.e. $id in the example)
- *
- * @param array $dataArray An associated array with values to the dataset
- */
- function Image_Graph_Dataset_Trivial($dataArray = false)
- {
- parent::Image_Graph_Dataset();
- $this->_data = array ();
- if (is_array($dataArray)) {
- reset($dataArray);
- $keys = array_keys($dataArray);
- foreach ($keys as $x) {
- $y =& $dataArray[$x];
- if ((is_array($y)) && (isset($y['x'])) && (isset($y['y']))) {
- $this->addPoint($y['x'], $y['y'], (isset($y['id']) ? $y['id'] : $x));
- } else {
- $this->addPoint($x, $y, $x);
- }
- }
- }
- }
-
- /**
- * Add a point to the dataset
- *
- * $ID can contain either the ID of the point, i.e. 'DK', 123, 'George', etc. or it can contain
- * values used for creation of the HTML image map. This is achieved using is an an associated array
- * with the following values:
- *
- * 'url' The URL to create the link to
- *
- * 'alt' [optional] The alt text on the link
- *
- * 'target' [optional] The target of the link
- *
- * 'htmltags' [optional] An associated array with html tags (tag as key), fx. 'onMouseOver' => 'history.go(-1);', 'id' => 'thelink'
- *
- * @param int $x The X value to add
- * @param int $y The Y value to add, can be omited
- * @param var $ID The ID of the point
- */
- function addPoint($x, $y = false, $ID = false)
- {
- parent::addPoint($x, $y, $ID);
-
- if (is_array($ID)) {
- $data = $ID;
- $ID = (isset($data['id']) ? $data['id'] : false);
- } else {
- $data = false;
- }
-
- $this->_data[] = array ('X' => $x, 'Y' => $y, 'ID' => $ID, 'data' => $data);
- if (!is_numeric($x)) {
- $this->_maximumX = count($this->_data);
- }
- }
-
- /**
- * The first point
- *
- * @return array The last point
- */
- function first()
- {
- reset($this->_data);
- return current($this->_data);
- }
-
- /**
- * The last point
- *
- * @return array The first point
- */
- function last()
- {
- return end($this->_data);
- }
-
- /**
- * Gets a X point from the dataset
- *
- * @param var $x The variable to return an X value from, fx in a
- * vector function data set
- * @return var The X value of the variable
- * @access private
- */
- function _getPointX($x)
- {
- if (isset($this->_data[$x])) {
- return $this->_data[$x]['X'];
- } else {
- return false;
- }
- }
-
- /**
- * Gets a Y point from the dataset
- *
- * @param var $x The variable to return an Y value from, fx in a
- * vector function data set
- * @return var The Y value of the variable
- * @access private
- */
- function _getPointY($x)
- {
- if (isset($this->_data[$x])) {
- return $this->_data[$x]['Y'];
- } else {
- return false;
- }
- }
-
- /**
- * Gets a ID from the dataset
- *
- * @param var $x The variable to return an Y value from, fx in a
- * vector function data set
- * @return var The ID value of the variable
- * @access private
- */
- function _getPointID($x)
- {
- if (isset($this->_data[$x])) {
- return $this->_data[$x]['ID'];
- } else {
- return false;
- }
- }
-
- /**
- * Gets point data from the dataset
- *
- * @param var $x The variable to return an Y value from, fx in a vector
- * function data set
- * @return array The data for the point
- * @access private
- */
- function _getPointData($x)
- {
- if (isset($this->_data[$x])) {
- return $this->_data[$x]['data'];
- } else {
- return false;
- }
- }
-
- /**
- * The number of values in the dataset
- *
- * @return int The number of values in the dataset
- */
- function count()
- {
- return count($this->_data);
- }
-
- /**
- * Reset the intertal dataset pointer
- *
- * @return var The first X value
- * @access private
- */
- function _reset()
- {
- $this->_posX = 0;
- return $this->_posX;
- }
-
- /**
- * Get the next point the internal pointer refers to and advance the pointer
- *
- * @return array The next point
- * @access private
- */
- function _next()
- {
- if ($this->_posX >= $this->count()) {
- return false;
- }
- $x = $this->_getPointX($this->_posX);
- $y = $this->_getPointY($this->_posX);
- $ID = $this->_getPointID($this->_posX);
- $data = $this->_getPointData($this->_posX);
- $this->_posX += $this->_stepX();
-
- return array('X' => $x, 'Y' => $y, 'ID' => $ID, 'data' => $data);
- }
-
-}
-
-?> \ No newline at end of file
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