/// <summary>
/// Ctor
/// </summary>
public RangeGrid(string originName, int rangeMins, int unitDistance)
{
var connectionStringPath = Path.Combine(Default.RangerFolder, "connectionString.txt");
var connectionString = File.ReadAllText(connectionStringPath);
Home = Origin.Load(connectionString, originName);
if (Home == null)
{
throw new Exception("Could not load Origin from DB.");
}
queriedPoints = new Dictionary <bool, HashSet <LatticePoint> >()
{
//inside points
[true] = new HashSet <LatticePoint>(),
// outside points
[false] = new HashSet <LatticePoint>()
};
this.rangeMins = rangeMins;
this.unitDistance = unitDistance;
// make sure an exception is thrown if we accidentaly use deltas before setting them
deltaLat = double.NaN;
deltaLon = double.NaN;
var apiKeyPath = Path.Combine(Default.RangerFolder, "apiKey.txt");
distanceApi = new DistanceMatrixApi(apiKeyPath);
dbContext = new RangerDataContext(connectionString);
}
public double CalculateArea(ComputeAreaInputs rangeOptions)
{
var range = new RangeGrid(rangeOptions.OriginName, rangeOptions.RangeMins, rangeOptions.UnitDistance);
range.Process();
var border = range.GetBorder(rangeOptions.SmoothPct);
var area = GeometryApi.ComputeArea(border, apiKey);
using (var dbContext = new RangerDataContext())
{
var existingRegion = dbContext
.Regions
.SingleOrDefault(x => x.OriginId == range.Home.Id && x.RangeMins == rangeOptions.RangeMins && x.UnitDistance == rangeOptions.UnitDistance);
if (existingRegion == null)
{
var newRegion = new Region()
{
OriginId = range.Home.Id,
RangeMins = rangeOptions.RangeMins,
UnitDistance = rangeOptions.UnitDistance,
Area = area,
BorderNodes = border.Length
};
dbContext.Regions.InsertOnSubmit(newRegion);
}
else
{
existingRegion.Area = area;
existingRegion.BorderNodes = border.Length;
}
dbContext.SubmitChanges();
}
return(area);
}
/// <summary>
/// Ctor
/// Loads the origin with the given name. Returns null if the origin is not present in the DB.
/// </summary>
public static Origin Load(string connectionString, string originName)
{
var dbContext = new RangerDataContext(connectionString);
return(dbContext.Origins.SingleOrDefault(o => o.Name == originName));
}
