Android Code Snippet [NEW] B4XEncodeDecodePolyline - B4X code only, no external libraries

New class to encode and decode polylines.

1. Decode points from encoded coordinates.
2. Encode points from polyline coordinates.
3. Generate GeoJSON from polyline coordinates.
4. Generate KML from polyline coordinates (v2).
5. Decode KML to polyline coordinates (v2).
6. Generate GPX from polyline coordinates (v2).
7. Decode GPX to polyline coordinates (v2).

    Dim Polyline As B4XEncodeDecodePolyline
    Polyline.Initialize

    Dim TextCoded As String = "mfp_I__vpAb@EwCc~@[oCcIuXyR_f@mGmLpKiZ_DoDPi@kCuC"

    Log("----------- Decode -----------")

    Log(TextCoded)

    Dim ListPoints As List = Polyline.Decode(TextCoded,5)

    For Each Points As Coordinates In ListPoints
        Log($"${Points.Latitude},${Points.Longitude}"$)
    Next
  
    TextCoded = Polyline.Encode(ListPoints, 5)
 
    Log("----------- Encode -----------")
  
    For Each Points As Coordinates In Polyline.Decode(TextCoded,5)
        Log($"${Points.Latitude},${Points.Longitude}"$)
    Next
    Log(TextCoded)
  
    Log("----------- GeoJSON -----------")
    Log(Polyline.ToGeoJSON(TextCoded,5).As(JSON).ToCompactString)

Get the source code for the class with a donation.

 

[TILogistic]

Note:
I will be posting other classes on geometric calculations and animations for Google Maps.