Polygon Getpolygondata()
{
var polygon = new Xamarin.Forms.GoogleMaps.Polygon();
polygon.Positions.Add(new Position(41.1389019841448d, -8.61560349288011d));
polygon.Positions.Add(new Position(41.1434744495776d, -8.67074812896517d));
polygon.Positions.Add(new Position(41.1449838609599d, -8.67905202242122d));
polygon.Positions.Add(new Position(41.1451299199957d, -8.67927438576518d));
polygon.Positions.Add(new Position(41.1667491884192d, -8.69051961393614d));
polygon.Positions.Add(new Position(41.1687515832633d, -8.69128901091482d));
polygon.Positions.Add(new Position(41.1687718202548d, -8.69129406942044d));
polygon.Positions.Add(new Position(41.1733985483824d, -8.6901233398917d));
polygon.Positions.Add(new Position(41.1791950462077d, -8.66638025932549d));
polygon.Positions.Add(new Position(41.1843186499419d, -8.64263275539779d));
polygon.Positions.Add(new Position(41.1859199810206d, -8.60475022412726d));
polygon.Positions.Add(new Position(41.1859353051989d, -8.60415557268555d));
polygon.Positions.Add(new Position(41.1858564905415d, -8.60352615847566d));
polygon.Positions.Add(new Position(41.1809534888858d, -8.57618203495341d));
polygon.Positions.Add(new Position(41.1808879776888d, -8.57596086663742d));
polygon.Positions.Add(new Position(41.1782338392238d, -8.56918812805673d));
polygon.Positions.Add(new Position(41.1781107344154d, -8.5690029395442d));
polygon.Positions.Add(new Position(41.1778608190979d, -8.56863743584061d));
polygon.Positions.Add(new Position(41.1776820677363d, -8.56838121049044d));
polygon.Positions.Add(new Position(41.1772845426276d, -8.56783274898752d));
polygon.Positions.Add(new Position(41.1761404097255d, -8.56630188826643d));
polygon.Positions.Add(new Position(41.1760550093552d, -8.56619263815834d));
polygon.Positions.Add(new Position(41.1759695143603d, -8.56610877045314d));
polygon.Positions.Add(new Position(41.1600578943756d, -8.55337925107515d));
polygon.Positions.Add(new Position(41.158207085713d, -8.55261345505833d));
polygon.Positions.Add(new Position(41.1532077014578d, -8.55473745611279d));
polygon.Positions.Add(new Position(41.1529458174769d, -8.55494508426352d));
polygon.Positions.Add(new Position(41.1463677636723d, -8.56368877972558d));
polygon.Positions.Add(new Position(41.1399578511665d, -8.57576315330342d));
polygon.Positions.Add(new Position(41.1383506797128d, -8.59418349674972d));
polygon.IsClickable = true;
polygon.StrokeColor = Color.Black;
polygon.StrokeWidth = 3f;
polygon.FillColor = Color.FromRgba(255, 0, 0, 64);
polygon.Tag = "POLYGON";
return(polygon);
}
async Task <bool> GetHeatMap(Bounds bounds)
{
// set the size of the pixel in degrees lat / lon
map.Polygons.Clear();
map.Polylines.Clear();
// build the request for polution info
var request = new PollutionRequest();
request.RAD = 100;
request.PAIRS = new List <List <string> >();
var radius = Math.Max(bounds.HeightDegrees / 2, bounds.WidthDegrees / 2);
var unit = Math.Max(.0015, radius / 100);
var halfU = unit / 2;
var left = Convert.ToDouble((bounds.Center.Longitude + radius * 2).ToString("F6"));
var right = Convert.ToDouble((bounds.Center.Longitude - radius * 2).ToString("F6"));
var top = Convert.ToDouble((bounds.Center.Latitude + radius).ToString("F6"));
var bottom = Convert.ToDouble((bounds.Center.Latitude - radius).ToString("F6"));
for (var Y = bottom; Y <= top; Y += unit)
{
for (var X = left; X >= right; X -= unit)
{
List <string> point = new List <string>();
point.Add(Y.ToString());
point.Add(X.ToString());
(request.PAIRS).Add(point);
if (request.PAIRS.Count >= 400 || (Y + unit > top && X - unit < right))
{
var result = await rest.GetPollution(JsonConvert.SerializeObject(request));
if (result != null)
{
// get the results
var x = 0;
double lvl = 0;
// loop through the results
for (x = 0; x < result.lon.Count; x++)
{
string level = (result.val)[x];
lvl = Convert.ToDouble(level) * 1;
Color fc = Color.Black;
if (lvl <= 50)
{
fc = Color.Green;
}
else
{
if (lvl <= 100)
{
fc = Color.Yellow;
}
else
{
fc = Color.Red;
}
}
var north = Convert.ToDouble(result.lat[x]) * 1 + halfU * 1;
var south = Convert.ToDouble(result.lat[x]) * 1 - halfU * 1;
var east = Convert.ToDouble(result.lon[x]) * 1 + halfU * 1;
var west = Convert.ToDouble(result.lon[x]) * 1 - halfU * 1;
var tileBounds = new Bounds(new Position(south, west), new Position(north, east));
var rectangle = new Xamarin.Forms.GoogleMaps.Polygon();
rectangle.StrokeWidth = 0;
rectangle.FillColor = Color.FromRgba(255, 0, 0, (lvl / 30.0) - 0.25);
rectangle.Positions.Add(tileBounds.NorthEast);
rectangle.Positions.Add(tileBounds.NorthWest);
rectangle.Positions.Add(tileBounds.SouthWest);
rectangle.Positions.Add(tileBounds.SouthEast);
map.Polygons.Add(rectangle);
}
}
request.PAIRS.Clear();
}
}
}
return(true);
}
void Calculate(List <Xamarin.Forms.GoogleMaps.Position> list)
{
mapn.Polylines.Clear();
var polygon = new Xamarin.Forms.GoogleMaps.Polygon();
polygon.Positions.Add(new Position(41.1389019841448d, -8.61560349288011d));
polygon.Positions.Add(new Position(41.1434744495776d, -8.67074812896517d));
polygon.Positions.Add(new Position(41.1449838609599d, -8.67905202242122d));
polygon.Positions.Add(new Position(41.1451299199957d, -8.67927438576518d));
polygon.Positions.Add(new Position(41.1667491884192d, -8.69051961393614d));
polygon.Positions.Add(new Position(41.1687515832633d, -8.69128901091482d));
polygon.Positions.Add(new Position(41.1687718202548d, -8.69129406942044d));
polygon.Positions.Add(new Position(41.1733985483824d, -8.6901233398917d));
polygon.Positions.Add(new Position(41.1791950462077d, -8.66638025932549d));
polygon.Positions.Add(new Position(41.1843186499419d, -8.64263275539779d));
polygon.Positions.Add(new Position(41.1859199810206d, -8.60475022412726d));
polygon.Positions.Add(new Position(41.1859353051989d, -8.60415557268555d));
polygon.Positions.Add(new Position(41.1858564905415d, -8.60352615847566d));
polygon.Positions.Add(new Position(41.1809534888858d, -8.57618203495341d));
polygon.Positions.Add(new Position(41.1808879776888d, -8.57596086663742d));
polygon.Positions.Add(new Position(41.1782338392238d, -8.56918812805673d));
polygon.Positions.Add(new Position(41.1781107344154d, -8.5690029395442d));
polygon.Positions.Add(new Position(41.1778608190979d, -8.56863743584061d));
polygon.Positions.Add(new Position(41.1776820677363d, -8.56838121049044d));
polygon.Positions.Add(new Position(41.1772845426276d, -8.56783274898752d));
polygon.Positions.Add(new Position(41.1761404097255d, -8.56630188826643d));
polygon.Positions.Add(new Position(41.1760550093552d, -8.56619263815834d));
polygon.Positions.Add(new Position(41.1759695143603d, -8.56610877045314d));
polygon.Positions.Add(new Position(41.1600578943756d, -8.55337925107515d));
polygon.Positions.Add(new Position(41.158207085713d, -8.55261345505833d));
polygon.Positions.Add(new Position(41.1532077014578d, -8.55473745611279d));
polygon.Positions.Add(new Position(41.1529458174769d, -8.55494508426352d));
polygon.Positions.Add(new Position(41.1463677636723d, -8.56368877972558d));
polygon.Positions.Add(new Position(41.1399578511665d, -8.57576315330342d));
polygon.Positions.Add(new Position(41.1383506797128d, -8.59418349674972d));
polygon.IsClickable = true;
polygon.StrokeColor = Color.Black;
polygon.StrokeWidth = 3f;
polygon.FillColor = Color.FromRgba(255, 0, 0, 64);
polygon.Tag = "POLYGON";
mapn.Polygons.Add(polygon);
var polyline = new Xamarin.Forms.GoogleMaps.Polyline();
polyline.StrokeColor = Color.Blue;
polyline.StrokeWidth = polyline.StrokeWidth * 4;
var polylineinside = new Xamarin.Forms.GoogleMaps.Polyline();
polylineinside.StrokeColor = Color.Red;
polylineinside.StrokeWidth = polyline.StrokeWidth * 2;
foreach (var p in list)
{
polyline.Positions.Add(p);
if (Contains(p, polygon))
{
// point is inside polygon
polylineinside.Positions.Add(p);
}
}
mapn.Polylines.Add(polyline);
if (polylineinside.Positions.Count > 2)
{
mapn.Polylines.Add(polylineinside);
}
var pin = new Xamarin.Forms.GoogleMaps.Pin
{
Type = PinType.Place,
Position = new Position(polyline.Positions.First().Latitude, polyline.Positions.First().Longitude),
Label = vm.startLabel,
Address = vm.startAdd,
Tag = "First Point",
Icon = BitmapDescriptorFactory.FromView(new Image()
{
Source = "ic_location.png", WidthRequest = 25, HeightRequest = 25
})
};
mapn.Pins.Add(pin);
var pin1 = new Xamarin.Forms.GoogleMaps.Pin
{
Type = PinType.Place,
Position = new Position(polyline.Positions.Last().Latitude, polyline.Positions.Last().Longitude),
Label = vm.endLabel,
Address = vm.endAdd,
Tag = "Last Point",
Icon = BitmapDescriptorFactory.FromView(new Image()
{
Source = "ic_location_red.png", WidthRequest = 25, HeightRequest = 25
})
};
mapn.Pins.Add(pin1);
int innerDist = 0;
if (polylineinside.Positions.Count > 2)
{
var googleDirection = (vm.GetDistance(polylineinside.Positions.First(), polylineinside.Positions.Last()).Result);
if (googleDirection.Routes != null && googleDirection.Routes.Count > 0)
{
innerDist = googleDirection.Routes.FirstOrDefault().Legs.FirstOrDefault().Distance.Value;
}
}
int totalDist = vm.CurrentGoogleDirection.Routes.FirstOrDefault().Legs.FirstOrDefault().Distance.Value;
decimal totalfare = 0;
decimal distanceunit = 0;
decimal innerDistanceunit = 0;
decimal outerDistanceunit = 0;
int outerDist = totalDist - innerDist;
decimal innerfare = (47m / (1000m / 300m));
decimal outerfare = (94m / (1000m / 300m));
if (innerDist > 0)
{
innerDistanceunit = (Convert.ToDecimal(innerDist) / 300m);
outerDistanceunit = (Convert.ToDecimal(outerDist) / 300m);
totalfare = (innerfare * innerDistanceunit) + (outerfare * outerDistanceunit);
distanceunit = innerDistanceunit + outerDistanceunit;
}
else
{
distanceunit = (totalDist / 300m);
totalfare = (outerfare * distanceunit);
}
mapn.MoveToRegion(MapSpan.FromPositions(list));
App.Current.MainPage.DisplayAlert("Price", "Total Distance : " + totalDist + " & Total Price : " + totalfare.ToString("F2")
+ "\nOuter Distance : " + outerDist + " @ Price : 94 cents"
+ "\nInner Distance : " + innerDist + " @ Price : 47 cents", "Ok");
}
public ShapesPage()
{
InitializeComponent();
Polyline polyline = null;
Polygon polygon = null;
Circle circle = null;
// Polyline
buttonAddPolyline.Clicked += (sender, e) =>
{
polyline = new Polyline();
polyline.Positions.Add(new Position(40.77d, -73.93d));
polyline.Positions.Add(new Position(40.81d, -73.91d));
polyline.Positions.Add(new Position(40.83d, -73.87d));
polyline.IsClickable = true;
polyline.StrokeColor = Color.Blue;
polyline.StrokeWidth = 5f;
polyline.Tag = "POLYLINE"; // Can set any object
polyline.Clicked += Polyline_Clicked;
map.Polylines.Add(polyline);
((Button)sender).IsEnabled = false;
buttonRemovePolyline.IsEnabled = true;
};
buttonRemovePolyline.Clicked += (sender, e) =>
{
map.Polylines.Remove(polyline);
polyline.Clicked -= Polyline_Clicked;
polyline = null;
((Button)sender).IsEnabled = false;
buttonAddPolyline.IsEnabled = true;
};
buttonRemovePolyline.IsEnabled = false;
// Polygon
buttonAddPolygon.Clicked += (sender, e) =>
{
polygon = new Polygon();
polygon.Positions.Add(new Position(40.85d, -73.96d));
polygon.Positions.Add(new Position(40.87d, -74.00d));
polygon.Positions.Add(new Position(40.78d, -74.06d));
polygon.Positions.Add(new Position(40.77d, -74.02d));
polygon.IsClickable = true;
polygon.StrokeColor = Color.Green;
polygon.StrokeWidth = 3f;
polygon.FillColor = Color.FromRgba(255, 0, 0, 64);
polygon.Tag = "POLYGON"; // Can set any object
polygon.Clicked += Polygon_Clicked;;
map.Polygons.Add(polygon);
((Button)sender).IsEnabled = false;
buttonRemovePolygon.IsEnabled = true;
};
buttonRemovePolygon.Clicked += (sender, e) =>
{
map.Polygons.Remove(polygon);
polygon.Clicked -= Polygon_Clicked;
polygon = null;
((Button)sender).IsEnabled = false;
buttonAddPolygon.IsEnabled = true;
};
buttonRemovePolygon.IsEnabled = false;
// Circle
buttonAddCircle.Clicked += (sender, e) =>
{
circle = new Circle();
circle.Center = new Position(40.72d, -73.89d);
circle.Radius = Distance.FromMeters(3000f);
circle.StrokeColor = Color.Purple;
circle.StrokeWidth = 6f;
circle.FillColor = Color.FromRgba(0, 0, 255, 32);
circle.Tag = "CIRCLE"; // Can set any object
map.Circles.Add(circle);
((Button)sender).IsEnabled = false;
buttonRemoveCircle.IsEnabled = true;
};
buttonRemoveCircle.Clicked += (sender, e) =>
{
map.Circles.Remove(circle);
circle = null;
((Button)sender).IsEnabled = false;
buttonAddCircle.IsEnabled = true;
};
buttonRemoveCircle.IsEnabled = false;
}