Viewing file: ShapeFile.class.php (2.79 KB) -rw-rw-rw- Select action/file-type: (+) | (+) | (+) | Code (+) | Session (+) | (+) | SDB (+) | (+) | (+) | (+) | (+) | (+) |
<?php /* vim: set expandtab sw=4 ts=4 sts=4: */ /** * This class extends ShapeFile class to cater the following phpMyAdmin * specific requirements. * * @package PhpMyAdmin-Import * @subpackage ESRI_Shape */ if (! defined('PHPMYADMIN')) { exit; }
/** * 1) To load data from .dbf file only when the dBase extension is available. * 2) To use PMA_importGetNextChunk() functionality to read data, rather than * reading directly from a file. Using ImportShp::readFromBuffer() in place * of fread(). This makes it possible to use compressions. * * @package PhpMyAdmin-Import * @subpackage ESRI_Shape */ class PMA_ShapeFile extends ShapeFile { /** * Returns whether the 'dbase' extension is loaded * * @return boolean whether the 'dbase' extension is loaded */ function _isDbaseLoaded() { return extension_loaded('dbase'); }
/** * Loads ESRI shape data from the imported file * * @param string $FileName not used, it's here only to match the method * signature of the method being overidden * * @return void * @see ShapeFile::loadFromFile() */ function loadFromFile($FileName) { $this->_loadHeaders(); $this->_loadRecords(); if ($this->_isDbaseLoaded()) { $this->_closeDBFFile(); } }
/** * Loads metadata from the ESRI shape file header * * @return void * @see ShapeFile::_loadHeaders() */ function _loadHeaders() { ImportShp::readFromBuffer(24); $this->fileLength = loadData("N", ImportShp::readFromBuffer(4));
ImportShp::readFromBuffer(4); $this->shapeType = loadData("V", ImportShp::readFromBuffer(4));
$this->boundingBox = array(); $this->boundingBox["xmin"] = loadData("d", ImportShp::readFromBuffer(8)); $this->boundingBox["ymin"] = loadData("d", ImportShp::readFromBuffer(8)); $this->boundingBox["xmax"] = loadData("d", ImportShp::readFromBuffer(8)); $this->boundingBox["ymax"] = loadData("d", ImportShp::readFromBuffer(8));
if ($this->_isDbaseLoaded() && $this->_openDBFFile()) { $this->DBFHeader = $this->_loadDBFHeader(); } }
/** * Loads geometry data from the ESRI shape file * * @return boolean|void * @see ShapeFile::_loadRecords() */ function _loadRecords() { global $eof; ImportShp::readFromBuffer(32); while (true) { $record = new PMA_ShapeRecord(-1); $record->loadFromFile($this->SHPFile, $this->DBFFile); if ($record->lastError != "") { return false; } if ($eof) { break; }
$this->records[] = $record; } } } ?>
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