https://github.com/mikaello/gpxfaketimer

Create fake timestamps for GPX-files. Useful for debugging or creating anonymized tracks
https://github.com/mikaello/gpxfaketimer

Last synced: 1 day ago
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Create fake timestamps for GPX-files. Useful for debugging or creating anonymized tracks

• Host: GitHub
• URL: https://github.com/mikaello/gpxfaketimer
• Owner: mikaello
• License: gpl-3.0
• Created: 2020-05-03T14:43:16.000Z (over 4 years ago)
• Default Branch: main
• Last Pushed: 2024-04-10T09:14:48.000Z (6 months ago)
• Last Synced: 2024-04-14T12:56:00.058Z (6 months ago)
• Language: TypeScript
• Homepage: https://gpxfaketimer.now.sh
• Size: 576 KB
• Stars: 2
• Watchers: 2
• Forks: 0
• Open Issues: 4
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# GPX fake timer

[![npm](https://img.shields.io/npm/v/@mikaello/gpxfaketimer.svg?style=flat-square)](https://www.npmjs.com/package/@mikaello/gpxfaketimer)

Create timestamps for every trackpoint in a GPX file.

```shell

yarn add @mikaello/gpxfaketimer

```

## Example

```ts

import { createTimestampsEvenly } from "@mikaello/gpxfaketimer";

const exampleGpx = `

  Example gpx

  

    Example gpx

    1

    

      

        2376

      

      

        2375

      

      

        2376

      

    

  

`;

console.log(createTimestampsEvenly(exampleGpx, 0, 100000));

// => will return the same GPX file, only with date here inside every trkpt:

/*

  Example gpx

  

    Example gpx

    1

    

      

        2376

        1970-01-01T00:00:00.000Z

      

      

        2375

        1970-01-01T00:00:50.000Z

      

      

        2376

        1970-01-01T00:01:40.000Z

      

    

  

*/

```

## API

- _`createTimestampsEvenly(gpxContent: string, startTime: number, endTime: number) => string`_:

  returns the incoming `gpxContent` enriched with timestamps in every `trkpt`

  element. `startTime` and `endTime` are milliseconds since epoch.

## Utility functions

Not specific for GPX, but just as helper functions

_`getUniformDistribution(count: number, intervalStart: number, intervalEnd: number) => number[]`_:

returns an array of length `count` with first element `intervalStart` and last

element `intervalEnd`, all elements in between is evenly distributed between

these extremeties.

## Develop

You can use the [./example](./example) project to ease developing. If you run

`yarn start` from that folder, you will start a server running a small

application which loads the code from this module. Run `yarn dev` in another

terminal to start to continously watch the code and recompile (and reload

server) when any code changes.

Contributions are welcome :-)