netlify-geo-functions

Collection of geo utilities use as netlify function

tmcw/togeojson

Pass the url to the gpx or kml file as GET parameter or the XML Content as Body in an POST Request

Method: GET

Endpoint: /togeojson?url=https://developers.google.com/kml/documentation/KML_Samples.kml

Query: url - absolute URL to the input file

---

Method: POST

Endpoint: /togeojson

Query: body - XML Content

mapbox/polyline

Pass the GeoJSON Linestring or [Lat, Lng] coordinates pair as Body in an POST Request and add the type (encode|decode|toGeoJSON|fromGeoJSON) as query param

Examples:

Type decode

Method: POST

Endpoint: /polyline?type=decode

Body:

_p~iF~ps|U_ulLnnqC_mqNvxq`@'

Response:

 [
    [38.5, -120.2], 
    [40.7, -120.95], 
    [43.252, -126.453]
 ]

---

Type encode

Method: POST

Endpoint: /polyline?type=encode

Body:

  [
     [38.5, -120.2], 
     [40.7, -120.95], 
     [43.252, -126.453]
  ]

Response:

_p~iF~ps|U_ulLnnqC_mqNvxq`@G?

---

Type toGeoJSON

Method: POST

Endpoint: /polyline?type=toGeoJSON

Body:

_p~iF~ps|U_ulLnnqC_mqNvxq`@'

Response:

  { "type": "Feature",
    "geometry": {
      "type": "LineString",
      "coordinates": [[-120.2, 38.5], [-120.95, 40.7], [-126.453, 43.252]]
    }
  } 

---

Type fromGeoJSON

Method: POST

Endpoint: /polyline?type=fromGeoJSON

Body:

  { "type": "Feature",
    "geometry": {
      "type": "LineString",
      "coordinates": [[-120.2, 38.5], [-120.95, 40.7], [-126.453, 43.252]]
    }
  } 

Response:

_p~iF~ps|U_ulLnnqC_mqNvxq`@

mapbox/geobuf

Pass the GeoJSON or the encoding bytes string as Body in an POST Request and add the type (encode|decode) as query param

Examples:

Type: `encode

Method: POST

Endpoint: /geobuf?type=encode

Body:

  { "type": "Feature",
    "geometry": {
      "type": "LineString",
      "coordinates": [[-120.2, 38.5], [-120.95, 40.7], [-126.453, 43.252]]
    }
  }

Response:

��*�
������Ö�ÈÙ�Û�°"ýUð'

Type: decode

Method: POST

Endpoint: /geobuf?type=decode

Body:

��*�
������Ö�ÈÙ�Û�°"ýUð'

Response:

  { "type": "Feature",
    "geometry": {
      "type": "LineString",
      "coordinates": [[-120.2, 38.5], [-120.95, 40.7], [-126.453, 43.252]]
    }
  }

mapbox/geojson-tidy

Create a tidy geojson by resmapling points in the feature based on sampling time and distance. Handy when geometries that have been converted from a noisy GPS/GPX output.

• Set a minimum sampling time between successive points
• Set a minimum distance between successive points
• Set a maximum feature length to split long segments

Examples:

distance: optional | default: 5 time: optional | default: 2 point: optional | default: 1000

Method: POST

Endpoint: /geojson-tidy

perliedman/geojson-elevation

Adds elevation to GeoJSON object

Read more about elevation in gpx files: (https://www.gpsvisualizer.com/tutorials/elevation_gain.html)

Examples:

Method: POST

Endpoint: /geojson-elevation

Body:

{
    "type": "FeatureCollection",
    "features": [
        {
            "type": "Feature",
            "geometry": {
                "type": "LineString",
                "coordinates": [
                    [
                        8.353419,
                        44.171635
                    ],
                    [
                        8.353632,
                        44.171694
                    ],
                    [
                        8.353777,
                        44.171808
                    ],
                    [
                        8.353846,
                        44.171881
                    ],
                    [
                        8.353985,
                        44.171952
                    ]
                ]
            }
        }
    ]
}

Response:

{
    "type": "FeatureCollection",
    "features": [
        {
            "type": "Feature",
            "geometry": {
                "type": "LineString",
                "coordinates": [
                    [
                        8.353419,
                        44.171635,
                        9.786587199999069
                    ],
                    [
                        8.353632,
                        44.171694,
                        9.31846656000447
                    ],
                    [
                        8.353777,
                        44.171808,
                        9.206085119998988
                    ],
                    [
                        8.353846,
                        44.171881,
                        9.244288319996787
                    ],
                    [
                        8.353985,
                        44.171952,
                        9.239270399993087
                    ]
                ]
            }
        }
    ]
}

mourner/simplify-js

Pass the Points as array of points {x: Number, y: Number, z: Number}as Body in an POST Request. Tolerance and HighQuality Option can be set optionally

Examples:

points: array tolerance: optional | default: 1 highQuality: optional | false

Method: POST

Endpoint: /simplify

Body:

{
  "points": [
    {
      "x": 8.214344,
      "y": 44.231328,
      "z": 941
    },
    {
      "x": 8.214351,
      "y": 44.231274,
      "z": 940
    },
    {
      "x": 8.214347,
      "y": 44.231243,
      "z": 939.6
    }
  ],
  "highQuality": true,
  "tolerance": 0.5
}

Response:

[
    {
        "x": 8.214344,
        "y": 44.231328,
        "z": 941
    },
    {
        "x": 8.214347,
        "y": 44.231243,
        "z": 939.6
    }
]