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<?php |
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/** |
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* BytesFall ShapeFiles library |
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* |
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* The library implements the 2D variants of the ShapeFile format as defined in |
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* http://www.esri.com/library/whitepapers/pdfs/shapefile.pdf. |
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* The library currently supports reading and editing of ShapeFiles and the |
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* Associated information (DBF file). |
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* |
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* @package bfShapeFiles |
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* @version 0.0.2 |
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* @link http://bfshapefiles.sourceforge.net/ |
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* @license http://www.gnu.org/licenses/gpl-2.0.html GPLv2-or-later |
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* |
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* Copyright 2006-2007 Ovidio <ovidio AT users.sourceforge.net> |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, you can download one from |
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* http://www.gnu.org/copyleft/gpl.html. |
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* |
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*/ |
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namespace ShapeFile; |
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class Util { |
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public static function loadData($type, $data) { |
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if (!$data) return $data; |
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$tmp = unpack($type, $data); |
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return current($tmp); |
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} |
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public static function swap($binValue) { |
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$result = $binValue{strlen($binValue) - 1}; |
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for($i = strlen($binValue) - 2; $i >= 0 ; $i--) { |
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$result .= $binValue{$i}; |
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} |
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return $result; |
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} |
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public static function packDouble($value, $mode = 'LE') { |
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$value = (double)$value; |
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$bin = pack("d", $value); |
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//We test if the conversion of an integer (1) is done as LE or BE by default |
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switch (pack ('L', 1)) { |
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case pack ('V', 1): //Little Endian |
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$result = ($mode == 'LE') ? $bin : self::swap($bin); |
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break; |
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case pack ('N', 1): //Big Endian |
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$result = ($mode == 'BE') ? $bin : self::swap($bin); |
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break; |
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default: //Some other thing, we just return false |
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$result = FALSE; |
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} |
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return $result; |
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} |
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} |
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phpmyadmin /
shapefile
