[Linpha-cvs] SF.net SVN: linpha: [4844] trunk/linpha2

[<bz...@us...>]

Revision: 4844
          http://linpha.svn.sourceforge.net/linpha/?rev=4844&view=rev
Author:   bzrudi
Date:     2008-01-31 11:54:28 -0800 (Thu, 31 Jan 2008)

Log Message:
-----------
First draft for the XML parser class (xml_parser.class.php)

Modified Paths:
--------------
    trunk/linpha2/ChangeLog
    trunk/linpha2/lib/classes/linpha.metadata.class.php
    trunk/linpha2/lib/plugins/maps/module.maps.php

Added Paths:
-----------
    trunk/linpha2/lib/plugins/maps/xml_parser.class.php

Removed Paths:
-------------
    trunk/linpha2/lib/plugins/maps/garmingpx_parser.class.php
    trunk/linpha2/lib/plugins/maps/gpx.php

Modified: trunk/linpha2/ChangeLog
===================================================================
--- trunk/linpha2/ChangeLog	2008-01-31 13:01:02 UTC (rev 4843)
+++ trunk/linpha2/ChangeLog	2008-01-31 19:54:28 UTC (rev 4844)
@@ -6,7 +6,8 @@
    - code cleanups
    - still work in progress
    - btw - installer looks fine
-   
+ * First draft for the XML parser class (xml_parser.class.php)
+ 
 2008-01-30 flo
  * installer
   - improved layout

Modified: trunk/linpha2/lib/classes/linpha.metadata.class.php
===================================================================
--- trunk/linpha2/lib/classes/linpha.metadata.class.php	2008-01-31 13:01:02 UTC (rev 4843)
+++ trunk/linpha2/lib/classes/linpha.metadata.class.php	2008-01-31 19:54:28 UTC (rev 4844)
@@ -29,7 +29,6 @@
  */
 class LinMetaData
 {
-
     public $defined_fields, $available_fields;
     protected $objMetaTool;
     private $cachedFieldNames, $cachedFieldIds, $cachedSelectedFieldNames;
@@ -1029,6 +1028,15 @@
     }
 
     /**
+     * Parse GPX data from file 
+     */
+    public function parseGpxFile($filename)
+    {
+        $parser = new GpxParser($filename);
+        
+    }
+    
+    /**
      * Simple wrapper method for saveMetaData()
      * @param string $what meta type exif,iptc,xmp
      * @param string $filename filename
@@ -1193,5 +1201,6 @@
         return $rotate;
     }
 }
+
 /* vi: set ts=4 sw=4 sts=4 */
 ?>

Deleted: trunk/linpha2/lib/plugins/maps/garmingpx_parser.class.php
===================================================================
--- trunk/linpha2/lib/plugins/maps/garmingpx_parser.class.php	2008-01-31 13:01:02 UTC (rev 4843)
+++ trunk/linpha2/lib/plugins/maps/garmingpx_parser.class.php	2008-01-31 19:54:28 UTC (rev 4844)
@@ -1,84 +0,0 @@
-<?php
-/*
-* Copyright (c) 2004 Heiko Rutenbeck <bz...@tu...>
-*
-* This program is free software; you can redistribute it and/or modify
-* it under the terms of the GNU General Public License as published by
-* the Free Software Foundation; either version 2 of the License, or
-*  (at your option) any later version.
-*
-* This program 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 General Public License for more details.
-*
-* You should have received a copy of the GNU General Public License
-* along with this program; if not, write to the Free Software
-* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
-
-if(!defined('TOP_DIR')) { define('TOP_DIR','../../'); }
- 
-/**
-* Class to parse Garmin GPX files and return values for
-* latitiude, longitude, elevation, time and more. Makes use of libxml
-* to read XML data -> requires php >= 4.2.0!
-*
-* @author bzrudi
-*/
-class GpxParser
-{
-	
-var $xmldata; //protected
-var $parsedata; //protected
-var $filename; //protected
-
-/**
- * Constructor
- */
-function GpxParser($filename)
-{
-	include_once(TOP_DIR.'/plugins/maps/libxml/IsterXmlSimpleXMLImpl.php');
-	$xmlreader = new IsterXmlSimpleXMLImpl;
-	$this->xmldata = $xmlreader->load_file($filename);
-	$this->filename = $filename; 
-}
-
-/**
- * This method checks whether file contains waypoints (wpt) or trackpoints 
- * (trkpt) or even routepoints (rtp) and takes good care of 
- * how we handle them.
- * 
- * @param none
- * @return array returns only XmlData and filetype
- * @author bzrudi
- */
-function getGpxFileType()
-{
-	$this->parsedata = file_get_contents($this->filename);
-
-	if(strpos($this->parsedata, 'trkpt'))
-	{
-		echo "TRACKFILE DETECTED";
-		return array($this->xmldata, 'trkpt');
-	}
-	elseif(strpos($this->parsedata, 'rtept'))
-	{
-		echo "ROUTEFILE DETECTED";
-		return array($this->xmldata, 'rtept');
-	}
-	elseif(strpos($this->parsedata, 'wpt'))
-	{
-		echo "WAYFILE DETECTED";
-		return array($this->xmldata, 'wpt');
-	}	
-	else
-	{
-		echo "CANNOT DETECT INPUT FILE FORMAT";
-		return array('dummy', 'failed');
-	}
-}
-
-} // end class
-?>
-

Deleted: trunk/linpha2/lib/plugins/maps/gpx.php
===================================================================
--- trunk/linpha2/lib/plugins/maps/gpx.php	2008-01-31 13:01:02 UTC (rev 4843)
+++ trunk/linpha2/lib/plugins/maps/gpx.php	2008-01-31 19:54:28 UTC (rev 4844)
@@ -1,99 +0,0 @@
-<?php
-/**
- * This method parses an XML file (currently in Garmin GPX format) and saves 
- * all available information in the DB
- * 
- * @param string filename
- * @author bzrudi
- */
-function parseXMLDataFile($filename)
-{
-	
-$gpxparser = new GpxParser($filename);
-list($xmldata, $filetype) = $gpxparser->getGpxFileType();
-
-	switch($filetype)
-	{
-		case "trkpt":
-		{
-			foreach( $xmldata->gpx->trk->trkseg->trkpt as $trkinfo)
-			{
-				$latlon = $trkinfo->attributes(); //array(lat,lon)
-		
-				$lat = $latlon['lat'];
-				$lon = $latlon['lon'];
-				$ele = $trkinfo->ele->CDATA();
-				$time = $trkinfo->time->CDATA();
-				
-				//echo"LAT:".$lat."LON:".$lon."ELE:".$ele."<br>";
-				
-				$location = new Location($lat, $lon, '<div class="someCssClass">' .
-						'LAT: '.$lat.'<br>' .
-						'LON: '.$lon.'<br>' .
-						'H&Ouml;HE: '.$ele.'m<br>' .
-						'DATE: '.$time.'</div>');
-				$this->cmap->addLocation($location);
-			}
-		break;		
-		}
-	
-		case "rtept":
-		{
-			foreach( $xmldata->gpx->rte->rtept as $pointinfo)
-			{
-				$latlon = $pointinfo->attributes(); //array(lat,lon)
-	
-				$lat = $latlon['lat'];
-				$lon = $latlon['lon'];
-				//$ele = $pointinfo->ele->CDATA();
-				//$name = $pointinfo->name->CDATA();
-				
-				//echo"LAT:".$lat."LON:".$lon."ELE:".$ele."NAME:".$name."<br>";
-				
-				$location = new Location($lat, $lon, '<div class="someCssClass">' .
-						'LAT: '.$lat.'<br>' .
-						'LON: '.$lon.'<br>' .
-						'H&Ouml;HE: na<br>' .
-						'Name: na</div>');
-				$this->cmap->addLocation($location);
-			}
-		break;		
-		}
-	
-		case "wpt":
-		{
-			foreach( $xmldata->gpx->wpt as $wpointinfo)
-			{
-				$latlon = $wpointinfo->attributes(); //array(lat,lon)
-	
-				$lat = $latlon['lat'];
-				$lon = $latlon['lon'];
-				$ele = $wpointinfo->ele->CDATA();
-				$name = $wpointinfo->name->CDATA();
-				$cmt = $wpointinfo->cmt->CDATA();
-				//$desc = $wpointinfo->desc->CDATA();
-				$sym = $wpointinfo->sym->CDATA();
-							
-				//echo"LAT: ".$lat."LON: ".$lon."ELE: ".$ele."NAME: ".$name." " .
-				//		"CMT: ".$cmt."SYMBOL: ".$sym."<br>";
-				
-				$location = new Location($lat, $lon, '<div class="someCssClass">' .
-						'LAT: '.$lat.'<br>' .
-						'LON: '.$lon.'<br>' .
-						'ELE: '.$ele.'m<br>' .
-						'NAM: '.$name.'<br>' .
-						'CMT: '.$cmt.'<br>' .
-						'SYM: '.$sym.'<br></div>');
-				$this->cmap->addLocation($location);
-			}
-		break;		
-		}
-		case "failed":
-		{
-			echo "CANNOT DETECT INPUT FILE FORMAT";
-		}
-	}
-}
-
-
-

Modified: trunk/linpha2/lib/plugins/maps/module.maps.php
===================================================================
--- trunk/linpha2/lib/plugins/maps/module.maps.php	2008-01-31 13:01:02 UTC (rev 4843)
+++ trunk/linpha2/lib/plugins/maps/module.maps.php	2008-01-31 19:54:28 UTC (rev 4844)
@@ -23,10 +23,13 @@
  * @package Plugins
  */
 if(!defined('LINPHA_DIR')) { exit(1); }
+include_once LINPHA_DIR.'/lib/plugins/maps/xml_parser.class.php';
 
-/*    	$MetaData = new LinMetaData();
-        $MetaData->importGeoData();*/
-/**
+$GPXData = new LinXmlParser();
+$array_with_gpx = $GPXData->readXmlFile('/tmp/sample.gpx');
+echo "<pre>", print_r($array_with_gpx), "</pre>";
+
+/**    
  * xml load/save stuff
  */
 if(isset($_GET['xml']))

Copied: trunk/linpha2/lib/plugins/maps/xml_parser.class.php (from rev 4841, trunk/linpha2/lib/plugins/maps/garmingpx_parser.class.php)
===================================================================
--- trunk/linpha2/lib/plugins/maps/xml_parser.class.php	                        (rev 0)
+++ trunk/linpha2/lib/plugins/maps/xml_parser.class.php	2008-01-31 19:54:28 UTC (rev 4844)
@@ -0,0 +1,137 @@
+<?php
+/*
+ * Copyright (c) 2004 Heiko Rutenbeck <bz...@tu...>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+if(!defined('TOP_DIR')) { define('TOP_DIR','../../'); }
+
+/**
+ * Class to parse Garmin GPX files and return values for
+ * latitiude, longitude, elevation, time and more.
+ * @author bzrudi
+ */
+class LinXmlParser
+{
+    private $data, $parser, $filename, $values, $index_array;
+    private $data_range, $gpx, $xml_data;
+
+    function __construct()
+    {
+
+    }
+    /**
+     * This method reads all trackpoints and related data from an xml file and
+     * returns them as an array, example:
+     *     [685] => Array
+     *   (
+     *       [trkpt] => Array
+     *           (
+     *               [lon] => 7.715998599305749
+     *               [lat] => 50.1166464574635
+     *           )
+     *
+     *       [ele] => 191.92
+     *       [time] => 2007-12-23T13:31:50Z
+     *       [extension] =>
+     *       [flags] => 0
+     *   )
+     *
+     * @param string $filename
+     * @return array with all trackpoints
+     */
+    public function readXmlFile($filename)
+    {
+        /**
+         * open and parse xml file for Track data
+         */
+        $this->data = file_get_contents($filename);
+        $this->parser = xml_parser_create();
+
+        /**
+         * lowercase tags
+         */
+        xml_parser_set_option($this->parser, XML_OPTION_CASE_FOLDING, 0);
+        xml_parser_set_option($this->parser, XML_OPTION_SKIP_WHITE, 1);
+
+        /**
+         * This function returns two arrays, one for the index and one for
+         * the values.
+         */
+        xml_parse_into_struct($this->parser, $this->data, $this->values, $this->index_array);
+        xml_parser_free($this->parser);
+
+        /**
+         * Loop through index array to find all occurencies of "trkpt"
+         */
+        foreach($this->index_array AS $key => $val)
+        {
+            if($key == "trkpt") // hit
+            {
+                $this->data_range = $val;
+
+                for($i=0; $i < count($this->data_range); $i+=2)
+                {
+                    $offset = $this->data_range[$i];
+                    $len = $this->data_range[$i + 1] - $offset;
+                    $this->xml_data[] = $this->parseXmlArray(array_slice($this->values, $offset, $len));
+                }
+            }
+            else
+            {
+                continue;
+            }
+        }
+        return $this->xml_data;
+    }
+
+    /**
+     * This is just an helper/wrapper method for readXmlFile() and is called
+     * for each trkpoint data entry from readXmlFile().
+     *
+     * @param array $sliced_arrav
+     * @return unknown
+     */
+    private function parseXmlArray($sliced_array)
+    {
+        for($i=0; $i < count($sliced_array); $i++)
+        {
+            /**
+             * Trkpt data is somewhat other to handle than ele and time data,
+             * as the return is an array.
+             */
+            if($sliced_array[$i]["tag"] == "trkpt")
+            {
+                $this->gpx[$sliced_array[$i]["tag"]] = @$sliced_array[$i]["attributes"];
+            }
+
+            /**
+             * This is anything beetween the <trkpt> and  </trkpt> tag
+             */
+            else
+            {
+                $this->gpx[$sliced_array[$i]["tag"]] = @$sliced_array[$i]["value"];
+            }
+        }
+
+        //return new LinXmlParser($this->gpx);
+        return $this->gpx;
+
+    }
+}
+
+/* vi: set ts=4 sw=4 sts=4 */
+?>


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