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node_modules/gpxparser/README.md
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# GPXParser.js
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*GPXParser.js* is a lightweight JS library wich parse .gpx file and get or compute various datas like
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- GPX metadata
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- total and cumulate distances
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- min, max, average, positive and negative height différence
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# GPX ? What is this ?
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Wikipedia say :
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> GPX, or GPS Exchange Format, is an XML schema designed as a common GPS data format for software applications.
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gpx files are based on xml with specific tags and attributes
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For more information about gpx format see http://www.topografix.com/gpx_manual.asp
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# How to do
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### Install from npm
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`npm install --save gpxparser`
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### Load JavaScript file
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From an HTML document :
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```html
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<script src="./js/GPXParser.js"></script>
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```
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From a node.js script :
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```js
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let gpxParser = require('gpxparser');
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```
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### Create and parse file
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```js
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var gpx = new gpxParser(); //Create gpxParser Object
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gpx.parse("<xml><gpx></gpx></xml>"); //parse gpx file from string data
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```
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### Use the gpx Object
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```js
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var totalDistance = gpx.tracks[0].distance.total;
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```
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### Export gpxParser Objecto to GeoJSON
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```js
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let geoJSON = gpx.toGeoJSON();
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```
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# Documentation
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| Property | Type | Description|
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| ------------- | ------------- | ------------- |
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| xmlSource | XML | XML Object parsed from gpx string file |
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| metadata | Metadata object | File metadata |
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| waypoints | Array of Waypoint object | Array of waypoints |
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| tracks | Array of Track object | Array of waypoints of tracks |
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| routes | Array of Route object | Array of waypoints of routes |
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## Metadata object
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| Property | Type | Description |
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| -------- | ------ | ----------------- |
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| name | String | File name |
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| desc | String | Description |
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| link | Link object | Web address |
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| author | Float | Author object |
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| time | DateTime | Time |
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## Waypoint object
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| Property | Type | Description |
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| -------- | ------ | ----------------- |
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| name | String | Point name |
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| cmt | String | Comment |
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| desc | String | Point description |
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| lat | Float | Point latitute |
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| lon | Float | Point longitude |
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| ele | Float | Point elevation |
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| time | Date | Point time |
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## Track object
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| Property | Type | Description |
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| -------- | ------ | ----------------- |
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| name | String | Point name |
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| cmt | String | Comment |
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| desc | String | Point description |
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| src | String | Used device |
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| number | String | Track identifier |
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| link | String | Link to a web address |
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| type | String | Track type |
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| points | Array | Points object array |
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| distance | Distance Object | Distance informations about the Route |
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| elevation | Elevation Object | Elevation informations about the Route |
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| slopes | Float Array | Slope of each sub-segment|
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## Route object
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| Property | Type | Description |
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| -------- | ------ | ----------------- |
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| name | String | Point name |
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| cmt | String | Comment |
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| desc | String | Point description |
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| src | String | Used device |
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| number | String | Track identifier |
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| link | String | Link to a web address |
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| type | String | Route type |
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| points | Array | Points object array |
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| distance | Distance Object | Distance informations about the Route |
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| elevation | Elevation Object | Elevation informations about the Route |
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| slopes | Float Array | Slope of each sub-segment|
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## Point object
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| Property | Type | Description |
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| -------- | ------ | ----------------- |
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| lat | Float | Point latitute |
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| lon | Float | Point longitude |
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| ele | Float | Point elevation |
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| time | Date | Point time |
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## Distance object
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| Property | Type | Description |
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| -------- | ------ | ----------------- |
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| total | Float | Total distance of the Route/Track |
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| cumul | Float | Cumulative distance at each point of the Route/Track |
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## Elevation object
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| Property | Type | Description |
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| -------- | ------ | ----------------- |
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| max | Float | Maximum elevation |
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| min | Float | Minimum elevation |
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| pos | Float | Positive elevation difference |
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| neg | Float | Negative elevation difference |
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| avg | Float | Average elevation |
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## Author object
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| Property | Type | Description |
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| -------- | ------ | ----------------- |
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| name | String | Author name |
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| email | Email object | Email address of the author |
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| link | Link object | Web address |
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## Email object
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| Property | Type | Description |
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| -------- | ------ | ----------------- |
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| id | String | Email id |
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| domain | String | Email domain |
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## Link object
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| Property | Type | Description |
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| -------- | ------ | ----------------- |
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| href | String | Web address |
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| text | String | Link text |
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| type | String | Link type |
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