public ActionResult Create(Attraction attraction)
{
attraction.AttractionType = db.AttractionType.Find(attraction.AttractionType.ID);
attraction.Country = db.Country.Find(attraction.Country.ID);
attraction.AvgRating = 0.0;
//upload photos
try
{
int i = 0;
foreach (string upload in Request.Files)
{
if (Request.Files[i].ContentLength == 0)
continue;
string path = AppDomain.CurrentDomain.BaseDirectory + "Content/AttractionImages/";
string ext = Request.Files[i].FileName.Substring(Request.Files[i].FileName.LastIndexOf('.'));
AttractionImage ai = new AttractionImage { AttractionID = attraction.ID, FileName = generateRandomString(32) + ext };
attraction.Images.Add(ai);
Request.Files[i].SaveAs(Path.Combine(path, ai.FileName));
i++;
}
}
catch (NullReferenceException)
{
//no photo
}
//end of upload user photo
db.Attraction.Add(attraction);
db.SaveChanges();
return RedirectToAction("Details", new { id = attraction.ID });
}
public ActionResult Attractions(int count)
{
Random random = new Random();
for (int i = 0; i < count; ++i)
{
int lat = random.Next(10) > 5 ? 1 : -1;
int lon = random.Next(10) > 5 ? 1 : -1;
Attraction attraction = new Attraction();
attraction.Address = new Address();
attraction.Address.City = db.Place.OrderBy(x => x.ID).Skip(random.Next(db.Place.Count() - 1)).FirstOrDefault().Name;
attraction.AttractionType = db.AttractionType.OrderBy(x => x.ID).Skip(random.Next(db.AttractionType.Count() - 1)).FirstOrDefault();
attraction.Coordinates = new Coordinates();
attraction.Coordinates.Latitude = random.NextDouble() * 90 * lat;
attraction.Coordinates.Longitude = random.NextDouble() * 180 * lon;
attraction.Country = db.Country.OrderBy(x => x.ID).Skip(random.Next(db.Country.Count() - 1)).FirstOrDefault();
attraction.Description = generateRandomText(random.Next(3, 10));
attraction.Name = "Attraction "+i.ToString();
db.Attraction.Add(attraction);
db.SaveChanges();
}
return RedirectToAction("Index","Attraction");
}
public string getPoints(int id)
{
var attractionsLists = db.AttractionsLists.Where(x => x.ListId == id).Select(x => x.AttractionId).ToList();
var attractions = db.Attraction.Include(c=>c.Coordinates).Where(x => attractionsLists.Contains(x.ID)).ToList();
Attraction[] atTab = new Attraction[attractions.Count];
if (attractions.Count == 0)
return "";
atTab = attractions.ToArray();
double[,] distances = new double[atTab.Length, atTab.Length];
for (int i = 0; i < atTab.Length; i++)
for (int j = 0; j < atTab.Length; j++)
{
double cosq = Math.Sin(atTab[i].Coordinates.Latitude) * Math.Sin(atTab[j].Coordinates.Latitude) +
Math.Cos(atTab[i].Coordinates.Latitude) * Math.Cos(atTab[j].Coordinates.Latitude) * Math.Cos(atTab[i].Coordinates.Longitude - atTab[j].Coordinates.Longitude);
double R = 6400;
double d = (2 * Math.PI * R * Math.Acos(cosq)) / 360;
distances[i, j] = d;
}
List<int> all = new List<int>();
for (int i=0; i<atTab.Length; i++)
all.Add(i);
Greedy g = new Greedy(distances, all);
List<int> tmp = g.CountDistance(0);
string s = "http://dev.virtualearth.net/REST/v1/Routes?";
//wp.0=london&wp.1=leeds&avoid=minimizeTolls&key=
int l=0;
foreach (int i in tmp)
{
s+=l==0?"wp.":"&wp.";
s+=l+"="+atTab[i].Coordinates.Latitude+","+atTab[i].Coordinates.Longitude;
l++;
}
s += "&routePathOutput=Points&output=json&jsonp=RouteCallback&key=";
return s;
}
