private string BuildEncodedPolyline(List <List <double> > coordinates)
{
var utility = new PolylineUtility();
var geoPoints = new List <IGeoCoordinate>();
foreach (var point in coordinates)
{
geoPoints.Add(new GeoCoordinate(
Math.Round(point[1], 3),
Math.Round(point[0], 3)
));
}
return(utility.Encode(geoPoints));
}
private string PrepareUrl(List <double> lat, List <double> lng)
{
var geoPoints = new List <IGeoCoordinate>();
for (int i = 0; i < lat.Count; i++)
{
if (i % 50 == 0)
{
geoPoints.Add(new GeoCoordinate(lat[i], lng[i]));
}
}
var polylineUtility = new PolylineUtility();
var polyLine = polylineUtility.Encode(geoPoints);
string encodedPolyline = HttpUtility.UrlEncode(polyLine);
string url = "https://api.mapbox.com/styles/v1/mapbox/streets-v11/static/path-3+FF0000(" + encodedPolyline + ")/auto/500x300?access_token=" + config.MAPBOX_KEY;
return(url);
}
