public static Community IsInCyclesCommunity(LatLng pointLatLng)
{
var builder = new LatLngBounds.Builder();
if (CyclesCommunities == null)
{
return(null);
}
foreach (Community community in CyclesCommunities)
{
if (community == null)
{
continue;
}
foreach (LatLng latLngSet in community.PolygonCoordinates)
{
if (latLngSet != null)
{
builder.Include(latLngSet);
}
}
LatLngBounds polygonBounds = builder.Build();
if (polygonBounds.Contains(pointLatLng))
{
return(community);
}
}
return(null);
}
public void LoadTrails()
{
latlng = _map.CameraPosition.Target;
if (latlng.Latitude != 0 && latlng.Longitude != 0)
{
string startlat = latlng.Latitude.ToString().Substring(0, 4);
string startlong = latlng.Longitude.ToString().Substring(0, 4);
DataAccess da = new DataAccess();
DataTable dt;
if (da != null)
{
dt = da.Load_Trail(startlat, startlong);
if (dt != null)
{
foreach (DataRow row in dt.Rows)
{
if (_map != null)
{
//Separate latitude and longitude
string[] startCoord = row.ItemArray[3].ToString().Split(',');
double startLat = -1;
double startLng = -1;
try
{
startLat = double.Parse(startCoord[0]);
startLng = double.Parse(startCoord[1]);
}
catch (Exception ex)
{
Console.WriteLine("Failed to parse start coordinates for a trail: MapActivity line 105");
Console.WriteLine(ex.ToString());
}
if (startLat != -1 && startLng != -1)
{
LatLngBounds bounds = _map.Projection.VisibleRegion.LatLngBounds;
LatLng trailhead = new LatLng(startLat, startLng);
//Load trails if they are in bounds of the zoom level
if (bounds.Contains(trailhead))
{
LoadMarkers(bounds, trailhead, row);
}
}
}
}
}
}
}
}
public static Community IsInCyclesCommunity(Location location)
{
var builder = new LatLngBounds.Builder();
if (CyclesCommunities == null)
{
return(null);
}
if (CyclesCommunitiesPolygons != null && CyclesCommunitiesPolygons.Any())
{
foreach (LatLngBounds polygonBounds in CyclesCommunitiesPolygons)
{
if (polygonBounds.Contains(new LatLng(location.Latitude, location.Longitude)))
{
return(CyclesCommunities[CyclesCommunitiesPolygons.IndexOf(polygonBounds)]);
}
}
}
else
{
foreach (Community community in CyclesCommunities)
{
if (community == null)
{
continue;
}
foreach (LatLng latLngSet in community.PolygonCoordinates)
{
if (latLngSet != null)
{
builder.Include(latLngSet);
}
}
LatLngBounds polygonBounds = builder.Build();
CyclesCommunitiesPolygons?.Add(polygonBounds);
if (polygonBounds.Contains(new LatLng(location.Latitude, location.Longitude)))
{
return(community);
}
}
}
return(null);
}
private void GoogleMap_CameraChange(object sender, GoogleMap.CameraChangeEventArgs e)
{
// Update bounds
cameraBounds = googleMap.Projection.VisibleRegion.LatLngBounds;
cameraPosition = googleMap.CameraPosition;
// Update lines visibility
bool showBuses = e.Position.Zoom >= BusZoomLimit;
foreach (Line line in TramUrWayApplication.Lines)
{
foreach (Route route in line.Routes)
{
Polyline polyline;
if (!routeLines.TryGetValue(route, out polyline))
{
continue;
}
if (line.Type == LineType.Bus)
{
polyline.Visible = showBuses;
}
}
}
// Update markers visibility
foreach (var pair in transportMarkers)
{
bool visible = pair.Key.Route.Line.Type == LineType.Tram || showBuses;
if (visible)
{
visible = cameraBounds.Contains(pair.Value.Position);
}
pair.Value.Visible = visible;
markersVisibility[pair.Value] = visible;
}
}
