README

这是一个用PHP编写的简单库，用于读取和创建GPX文件。文档可通过GitHub页面生成并使用Jekyll查看。

欢迎贡献和反馈！请查看待办事项中的问题。我会很高兴看到每个功能或拉取请求。

仓库分支

master：最新稳定版本
develop：正在开发2.x

特性

完全支持官方规范。
统计计算。
扩展。
JSON & XML & PHP数组输出。

支持的扩展

Garmin TrackPointExtension：http://www.garmin.com/xmlschemas/TrackPointExtension/v1

统计计算

(平滑)距离（m）
平均速度（m/s）
平均配速（s/km）
最小/最大海拔（m）
最小/最大坐标（[lat,lng]）
(平滑)海拔上升/下降（m）
开始/结束（DateTime对象）
开始/结束坐标（[lat,lng]）
持续时间（秒）

安装

您可以使用composer轻松安装phpGPX库。目前尚无稳定版本，请使用候选版本。

composer require sibyx/phpgpx:1.3.0

示例

打开GPX文件并加载基本统计信息

<?php
use phpGPX\phpGPX;

$gpx = new phpGPX();
	
$file = $gpx->load('example.gpx');
	
foreach ($file->tracks as $track)
{
    // Statistics for whole track
    $track->stats->toArray();
    
    foreach ($track->segments as $segment)
    {
    	// Statistics for segment of track
    	$segment->stats->toArray();
    }
}

写入文件

<?php
use phpGPX\phpGPX;

$gpx = new phpGPX();
	
$file = $gpx->load('example.gpx');

// XML
$file->save('output.gpx', phpGPX::XML_FORMAT);
	
//JSON
$file->save('output.json', phpGPX::JSON_FORMAT);

从头创建文件

<?php

use phpGPX\Models\GpxFile;
use phpGPX\Models\Link;
use phpGPX\Models\Metadata;
use phpGPX\Models\Point;
use phpGPX\Models\Segment;
use phpGPX\Models\Track;

require_once '/vendor/autoload.php';

$sample_data = [
	[
		'longitude' => 9.860624216140083,
		'latitude' => 54.9328621088893,
		'elevation' => 0,
		'time' => new \DateTime("+ 1 MINUTE")
	],
	[
		'latitude' => 54.83293237320851,
		'longitude' => 9.76092208681491,
		'elevation' => 10.0,
		'time' => new \DateTime("+ 2 MINUTE")
	],
	[
		'latitude' => 54.73327743521187,
		'longitude' => 9.66187816543752,
		'elevation' => 42.42,
		'time' => new \DateTime("+ 3 MINUTE")
	],
	[
		'latitude' => 54.63342326167919,
		'longitude' => 9.562439849679859,
		'elevation' => 12,
		'time' => new \DateTime("+ 4 MINUTE")
	]
];

// Creating sample link object for metadata
$link = new Link();
$link->href = "https://sibyx.github.io/phpgpx";
$link->text = 'phpGPX Docs';

// GpxFile contains data and handles serialization of objects
$gpx_file = new GpxFile();

// Creating sample Metadata object
$gpx_file->metadata = new Metadata();

// Time attribute is always \DateTime object!
$gpx_file->metadata->time = new \DateTime();

// Description of GPX file
$gpx_file->metadata->description = "My pretty awesome GPX file, created using phpGPX library!";

// Adding link created before to links array of metadata
// Metadata of GPX file can contain more than one link
$gpx_file->metadata->links[] = $link;

// Creating track
$track = new Track();

// Name of track
$track->name = "Some random points in logical order. Input array should be already ordered!";

// Type of data stored in track
$track->type = 'RUN';

// Source of GPS coordinates
$track->source = "MySpecificGarminDevice";

// Creating Track segment
$segment = new Segment();


foreach ($sample_data as $sample_point)
{
	// Creating trackpoint
	$point = new Point(Point::TRACKPOINT);
	$point->latitude = $sample_point['latitude'];
	$point->longitude = $sample_point['longitude'];
	$point->elevation = $sample_point['elevation'];
	$point->time = $sample_point['time'];

	$segment->points[] = $point;
}

// Add segment to segment array of track
$track->segments[] = $segment;

// Recalculate stats based on received data
$track->recalculateStats();

// Add track to file
$gpx_file->tracks[] = $track;

// GPX output
$gpx_file->save('CreatingFileFromScratchExample.gpx', \phpGPX\phpGPX::XML_FORMAT);

// Serialized data as JSON
$gpx_file->save('CreatingFileFromScratchExample.json', \phpGPX\phpGPX::JSON_FORMAT);

// Direct GPX output to browser

header("Content-Type: application/gpx+xml");
header("Content-Disposition: attachment; filename=CreatingFileFromScratchExample.gpx");

echo $gpx_file->toXML()->saveXML();
exit();

当前支持的输出格式

XML
JSON

配置

使用phpGPX中的静态常量来修改行为。

/**
 * Create Stats object for each track, segment and route
 */
public static $CALCULATE_STATS = true;

/**
 * Additional sort based on timestamp in Routes & Tracks on XML read.
 * Disabled by default, data should be already sorted.
 */
public static $SORT_BY_TIMESTAMP = false;

/**
 * Default DateTime output format in JSON serialization.
 */
public static $DATETIME_FORMAT = 'c';

/**
 * Default timezone for display.
 * Data are always stored in UTC timezone.
 */
public static $DATETIME_TIMEZONE_OUTPUT = 'UTC';

/**
 * Pretty print.
 */
public static $PRETTY_PRINT = true;

/**
 * In stats elevation calculation: ignore points with an elevation of 0
 * This can happen with some GPS software adding a point with 0 elevation
 */
public static $IGNORE_ELEVATION_0 = true;

/**
 * Apply elevation gain/loss smoothing? If true, the threshold in
 * ELEVATION_SMOOTHING_THRESHOLD and ELEVATION_SMOOTHING_SPIKES_THRESHOLD (if not null) applies
 */
public static $APPLY_ELEVATION_SMOOTHING = false;

/**
 * if APPLY_ELEVATION_SMOOTHING is true
 * the minimum elevation difference between considered points in meters
 */
public static $ELEVATION_SMOOTHING_THRESHOLD = 2;

/**
 * if APPLY_ELEVATION_SMOOTHING is true
 * the maximum elevation difference between considered points in meters
 */
public static $ELEVATION_SMOOTHING_SPIKES_THRESHOLD = null;

/**
 * Apply distance calculation smoothing? If true, the threshold in
 * DISTANCE_SMOOTHING_THRESHOLD applies
 */
public static $APPLY_DISTANCE_SMOOTHING = false;

/**
 * if APPLY_DISTANCE_SMOOTHING is true
 * the minimum distance between considered points in meters
 */
public static $DISTANCE_SMOOTHING_THRESHOLD = 2;

我编写这个库是我所在公司Backbone s.r.o.工作的一部分。

许可

本项目的许可条款为MIT许可。

sibyx / phpgpx

维护者

详细信息