gpx

问题 I'm developing an iOS 5 application. I want to develop a GPX parser but I'm wondering if there is one developed before I start to developing it. Do you know if there is an Objective-c GPX parser? 回答1: Have a look at: http://terrabrowser.googlecode.com/svn/trunk/ There you will find GPSFileParser.m and GPSFileParser.h which may help you. 回答2: I have been working on the gpx-api for a little while. It will read gpx files and has a data model that is useable (in my opinion). 回答3: There is no

问题 i have xml/gpx file: <?xml version="1.0" encoding="utf-8"?> <gpx xsi:schemaLocation="http://www.topografix.com/GPX/1/1"> <metadata> .... </metadata> <trk> <trkseg> <trkpt lat="50.04551333333333" lon="14.434101666666667"> <ele>282</ele> <time>2014-06-30T20:56:03.92</time> <extensions> <gpxtpx:TrackPointExtension> <gpxtpx:hr>100</gpxtpx:hr> </gpxtpx:TrackPointExtension> </extensions> </trkpt> ... </gpx> Load: $xml=simplexml_load_file($gpx_file); parse witch foreach($xml->trk->trkseg->trkpt as

问题 i have xml/gpx file: <?xml version="1.0" encoding="utf-8"?> <gpx xsi:schemaLocation="http://www.topografix.com/GPX/1/1"> <metadata> .... </metadata> <trk> <trkseg> <trkpt lat="50.04551333333333" lon="14.434101666666667"> <ele>282</ele> <time>2014-06-30T20:56:03.92</time> <extensions> <gpxtpx:TrackPointExtension> <gpxtpx:hr>100</gpxtpx:hr> </gpxtpx:TrackPointExtension> </extensions> </trkpt> ... </gpx> Load: $xml=simplexml_load_file($gpx_file); parse witch foreach($xml->trk->trkseg->trkpt as

问题 I have a GPS with a GPRS with an active SIM card. How do I go about directing the GPRS data to a specific website (IP port_ I believe port 3500 is used). I do not know how to acquire the GPS/GPRS data transmission and do not know how (or what should be done) to process the incoming data. I am not familiar with the route the GPRS data goes and how to acquire and process it. I assume it would need HTML/XML. I would like to process in real time. Also what format would a GPS normally send data?

问题 This Question refers to:How to summarize, group 4000+ GPX Trackpoints as Tracks named for by each days date? Garmin GPS-Tracks provide the option to define a different color for each track. As a perfection to the result of the referring question, I wonder how to apply alternating colors for each GPS-track. For instance the 1st. track (all trackpoints for that day) are colored 'Magenta' the 2nd. day is colored 'DarkGray' and the 3rd. day again 'Magenta'. Using the node (date) to alternate

问题 I have been beating my head against the wall for some time now. According to the documentation, this should be simple. All I want to do is read a GPX file. However, GPX files liberally use namespaces, which theoretically make sense. I cannot seem to get ElementTree to read them, though. Here is the code I am trying to use... def loadGpx(self, sourceFile): ElementTree.register_namespace('gpx', 'http://www.topografix.com/GPX/1/1') eTree = ElementTree.ElementTree() eTree.parse(sourceFile) print

问题 I'm Delphi newbie trying to create a GPX file like this, <?xml version="1.0" encoding="UTF-8" ?> - <gpx xmlns="http://www..." version="1.1" creator="EasyGPS 4.18" xmlns:xsi="http://www..." " xsi:schemaLocation="http://www..." > - <metadata> <bounds minlat="19.38975200" minlon="-99.17971000" maxlat="19.39671900" maxlon="-99.17543500" /> - <extensions> <time xmlns="http://www...">2011-02-20T01:51:38.662Z</time> </extensions> </metadata> - <wpt lat="19.39671900" lon="-99.17820800"> <time>2011-02

问题 I did a .gpx file to simulate a route on IOS simulator, now i wanna simulate the horizontal accuracy how I can do this? as follow is an excerpt of my .gpx file: <?xml version="1.0"?> <gpx> <wpt lat="-23.772830" lon="-46.689820"/> //how add horizontal accuracy 7 meters for example <wpt lat="-23.774450" lon="-46.692570"/> //and here horizontal accuracy of 2 metters for example <wpt lat="-23.773450" lon="-46.693530"/> //and here 19 meters </gpx> if I run all gps points return horizontal accuracy

问题 I am looking for a free easy to use XML parser / Reader for GPX files in Delphi and was wondering if anyone could recommend one or should i be using Delphi's own XML data binding / XML document? thanks Colin 回答1: You can use the Tool "XML mapper" of Delphi. Here on my blog, you can find the article "Load an GPX file (XML) y acces to data" that explain how use this tool (XML Mapper). The sample create structure to load GPX Files. You can find other similar post, like this "Generate KML files

问题 Advise what can parse GPX file in Ruby? I tried gpx, but it does not work with Ruby Enterprise Edition (https://github.com/dougfales/gpx/issues/1). I would not like to write a parser. 回答1: I was looking for the same thing but in the end a GPX file is just another XML file so you can parse it with XML parsing libraries like Nokogiri. Here is how I extract all the latitudes and longitudes form a GPX log: #!/usr/bin/env ruby require 'rubygems' require 'nokogiri' doc = Nokogiri::XML(open(my-log