/// <summary>
/// Parse JSON serialized route coordinate array
/// </summary>
/// <param name="db"></param>
/// <param name="route"></param>
/// <param name="jsonShapes"></param>
private void SaveNewRouteShape(TrolleyTrackerContext db, Route route, string jsonShapes)
{
JavaScriptSerializer jss = new JavaScriptSerializer();
jss.RegisterConverters(new JavaScriptConverter[] { new DynamicJsonConverter() });
dynamic shapeData = jss.Deserialize(jsonShapes, typeof(object)) as dynamic;
Coordinate lastCoordinate = null;
var totalDistance = 0.0;
int sequence = 0;
int nodeCount = shapeData.Length;
for (int i = 0; i < nodeCount; i++)
{
var node = shapeData[i];
var lon = Convert.ToDouble(node.Lon);
var lat = Convert.ToDouble(node.Lat);
var thisCoordinate = new Coordinate(lat, lon);
double distance = 0.0;
if (lastCoordinate != null)
{
distance = thisCoordinate.GreatCircleDistance(lastCoordinate);
}
lastCoordinate = thisCoordinate;
totalDistance += distance;
// Add new point if not duplicated (some shape editors create duplicate nodes)
if (distance > 0.0)
{
var dbShape = new TrolleyTracker.Models.Shape();
dbShape.Lat = lat;
dbShape.Lon = lon;
dbShape.RouteID = route.ID;
dbShape.Sequence = sequence;
dbShape.DistanceTraveled = totalDistance;
sequence++;
db.Shapes.Add(dbShape);
}
}
db.SaveChanges();
}
public ActionResult Create(FormCollection collection)
{
try
{
Coordinate lastCoordinate = null;
var strRouteID = collection.Get("RouteID");
// Parse Geo-JSON formatted route coordinates
var jsonShapes = collection.Get("JSONText");
if (jsonShapes != null && strRouteID != null)
{
int routeID = Convert.ToInt32(strRouteID);
using (var db = new TrolleyTracker.Models.TrolleyTrackerContext())
{
RemoveOldShape(routeID, db);
JavaScriptSerializer jss = new JavaScriptSerializer();
jss.RegisterConverters(new JavaScriptConverter[] { new DynamicJsonConverter() });
dynamic shapeData = jss.Deserialize(jsonShapes, typeof(object)) as dynamic;
var features = shapeData.features;
var geometryBlock = features[0];
var geometry = geometryBlock["geometry"];
var geoJSONtype = geometry["type"];
var coordinates = geometry["coordinates"];
int segmentCount = coordinates.Count;
if (geoJSONtype == "LineString") segmentCount = 1;
int sequence = 0;
double totalDistance = 0.0;
for (int seg = 0; seg < segmentCount; seg++)
{
var coordArray = coordinates[seg];
if (geoJSONtype == "LineString") coordArray = coordinates;
int nodeCount = coordArray.Count;
for (int i = 0; i < nodeCount; i++)
{
var node = coordArray[i];
var strLon = node[0];
var strLat = node[1];
var lon = Convert.ToDouble(strLon);
var lat = Convert.ToDouble(strLat);
var thisCoordinate = new Coordinate(0, lat, lon, null);
double distance = 0.0;
if (lastCoordinate != null)
{
distance = thisCoordinate.GreatCircleDistance(lastCoordinate);
}
lastCoordinate = thisCoordinate;
totalDistance += distance;
var dbShape = new TrolleyTracker.Models.Shape();
dbShape.Lat = lat;
dbShape.Lon = lon;
dbShape.RouteID = routeID;
dbShape.Sequence = sequence;
dbShape.DistanceTraveled = totalDistance;
sequence++;
db.Shapes.Add(dbShape);
}
}
db.SaveChanges();
var assignStops = new AssignStopsToRoutes();
assignStops.UpdateStopsForRoute(db, routeID);
}
}
return RedirectToAction("Index");
}
catch
{
return View();
}
}
public ActionResult Create(FormCollection collection)
{
try
{
Coordinate lastCoordinate = null;
var strRouteID = collection.Get("RouteID");
// Parse Geo-JSON formatted route coordinates
var jsonShapes = collection.Get("JSONText");
if (jsonShapes != null && strRouteID != null)
{
int routeID = Convert.ToInt32(strRouteID);
using (var db = new TrolleyTracker.Models.TrolleyTrackerContext())
{
RemoveOldShape(routeID, db);
JavaScriptSerializer jss = new JavaScriptSerializer();
jss.RegisterConverters(new JavaScriptConverter[] { new DynamicJsonConverter() });
dynamic shapeData = jss.Deserialize(jsonShapes, typeof(object)) as dynamic;
var features = shapeData.features;
var geometryBlock = features[0];
var geometry = geometryBlock["geometry"];
var geoJSONtype = geometry["type"];
var coordinates = geometry["coordinates"];
int segmentCount = coordinates.Count;
if (geoJSONtype == "LineString")
{
segmentCount = 1;
}
int sequence = 0;
double totalDistance = 0.0;
for (int seg = 0; seg < segmentCount; seg++)
{
var coordArray = coordinates[seg];
if (geoJSONtype == "LineString")
{
coordArray = coordinates;
}
int nodeCount = coordArray.Count;
for (int i = 0; i < nodeCount; i++)
{
var node = coordArray[i];
var strLon = node[0];
var strLat = node[1];
var lon = Convert.ToDouble(strLon);
var lat = Convert.ToDouble(strLat);
var thisCoordinate = new Coordinate(lat, lon);
double distance = 0.0;
if (lastCoordinate != null)
{
distance = thisCoordinate.GreatCircleDistance(lastCoordinate);
}
lastCoordinate = thisCoordinate;
totalDistance += distance;
var dbShape = new TrolleyTracker.Models.Shape();
dbShape.Lat = lat;
dbShape.Lon = lon;
dbShape.RouteID = routeID;
dbShape.Sequence = sequence;
dbShape.DistanceTraveled = totalDistance;
sequence++;
db.Shapes.Add(dbShape);
}
}
db.SaveChanges();
var assignStops = new AssignStopsToRoutes();
assignStops.UpdateStopsForRoute(db, routeID);
var route = db.Routes.Find(routeID);
logger.Info($"Modified route shape of '{route.Description}' - '{route.LongName}'");
}
}
return(RedirectToAction("Index"));
}
catch (Exception ex)
{
ViewBag.Message = "Shape save exception";
logger.Error(ex, "Exception saving route shape");
ViewBag.RouteID = new SelectList(db.Routes, "ID", "ShortName");
return(View());
}
}
