/// <summary>
/// </summary>
/// <param name="line">the line to buffer</param>
/// <param name="startWidth">the buffer width at the start of the line</param>
/// <param name="endWidth">the buffer width at the end of the line</param>
/// <returns>The variable-width buffer polygon</returns>
public static IGeometry Buffer(ILineString line, double startWidth,
double endWidth)
{
var width = Interpolate(line, startWidth, endWidth);
var vb = new VariableWidthBuffer(line, width);
return(vb.GetResult());
}
public object Search(string from, string to, int radius)
{
HttpClient webservice = new HttpClient();
string url = "https://maps.googleapis.com/maps/api/directions/json?origin=" + from + "&destination=" + to + "&key=AIzaSyDIR_Gt9qJxpvTgCr9z-wfCVFTKPjGs_8w";
//Debug.WriteLine(postData);
HttpResponseMessage response = webservice.GetAsync(url).Result;
/* */
GoogleDirectionClass objRoutes = JsonConvert.DeserializeObject <GoogleDirectionClass>(response.Content.ReadAsStringAsync().Result);
if (objRoutes.routes.Count > 0)
{
string encodedPoints = objRoutes.routes[0].overview_polyline.points;
List <Models.Location> lstDecodedPoints = FnDecodePolylinePoints(encodedPoints);
//convert list of location point to array of latlng type
LatLngNew[] latLngPoints = new LatLngNew[lstDecodedPoints.Count];
Coordinate[] ss = new Coordinate[lstDecodedPoints.Count];
int index = 0;
foreach (Models.Location loc in lstDecodedPoints)
{
latLngPoints[index] = new LatLngNew(loc.lat, loc.lng);
ss[index] = new Coordinate(loc.lat, loc.lng);
index++;
}
//TODO: do bd....
double searchRadios = (double)radius / 37;
var lineString = new LineString(ss);
var buffer = VariableWidthBuffer.Buffer(lineString, searchRadios, searchRadios);
var bArray = buffer.Coordinates;
var bArrayLength = buffer.Coordinates.Length;
double[,] pArray = new double[bArrayLength, 2];
for (int i = 0; i < bArrayLength; i++)
{
pArray[i, 0] = bArray[i].X;
pArray[i, 1] = bArray[i].Y;
}
GoogleReturnObj returnObj = new GoogleReturnObj()
{
PolyLinePoints = latLngPoints.ToList(),
Source = new Area()
{
Pos = new LatLngNew(objRoutes.routes[0].legs[0].start_location.lat, objRoutes.routes[0].legs[0].start_location.lng), Name = from
},
Destination = new Area()
{
Pos = new LatLngNew(objRoutes.routes[0].legs[0].end_location.lat, objRoutes.routes[0].legs[0].end_location.lng), Name = to
},
Points = pArray
};
var s = new { convert = buffer, coordinates = latLngPoints, coords = buffer.Coordinates.Select(x => new LatLngNew(x.X, x.Y)), darr = buffer.Coordinates.Select(d => new double[] { d.X, d.Y }) };
return(returnObj);
}
return(null);
}