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Diffstat (limited to 'config/dspam/pear/Image/Graph/DataPreprocessor/Array.php')
| -rw-r--r-- | config/dspam/pear/Image/Graph/DataPreprocessor/Array.php | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/config/dspam/pear/Image/Graph/DataPreprocessor/Array.php b/config/dspam/pear/Image/Graph/DataPreprocessor/Array.php new file mode 100644 index 00000000..08e62378 --- /dev/null +++ b/config/dspam/pear/Image/Graph/DataPreprocessor/Array.php @@ -0,0 +1,103 @@ +<?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 DataPreprocessor + * @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/DataPreprocessor.php + */ +require_once 'Image/Graph/DataPreprocessor.php'; + +/** + * Format data as looked up in an array. + * + * ArrayData is useful when a numercal value is to be translated to + * something thats cannot directly be calculated from this value, this could for + * example be a dataset meant to plot population of various countries. Since x- + * values are numerical and they should really be country names, but there is no + * linear correlation between the number and the name, we use an array to 'map' + * the numbers to the name, i.e. $array[0] = 'Denmark'; $array[1] = 'Sweden'; + * ..., where the indexes are the numerical values from the dataset. This is NOT + * usefull when the x-values are a large domain, i.e. to map unix timestamps to + * date-strings for an x-axis. This is because the x-axis will selecte arbitrary + * values for labels, which would in principle require the ArrayData to hold + * values for every unix timestamp. However ArrayData can still be used to solve + * such a situation, since one can use another value for X-data in the dataset + * and then map this (smaller domain) value to a date. That is we for example + * instead of using the unix-timestamp we use value 0 to represent the 1st date, + * 1 to represent the next date, etc. + * + * @category Images + * @package Image_Graph + * @subpackage DataPreprocessor + * @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_DataPreprocessor_Array extends Image_Graph_DataPreprocessor +{ + + /** + * The data label array + * @var array + * @access private + */ + var $_dataArray; + + /** + * Image_Graph_ArrayData [Constructor]. + * + * @param array $array The array to use as a lookup table + */ + function Image_Graph_DataPreprocessor_Array($array) + { + parent::Image_Graph_DataPreprocessor(); + $this->_dataArray = $array; + } + + /** + * Process the value + * + * @param var $value The value to process/format + * @return string The processed value + * @access private + */ + function _process($value) + { + if ((is_array($this->_dataArray)) && (isset ($this->_dataArray[$value]))) { + return $this->_dataArray[$value]; + } else { + return $value; + } + } + +} + +?>
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