public PropagationHorizonDesignator PropagationHorizonFind(PropagationHorizonDesignator hor, ELEVATIONMODEL model)
{
System.Data.SQLite.SQLiteDatabase db = GetPropagationDatabase(model);
// save localobstruction
LocalObstructionDesignator obstr = hor.LocalObstruction;
lock (db.DBCommand)
{
db.DBCommand.CommandText = "SELECT * FROM " + PropagationHorizonDesignator.TableName + " WHERE Lat = @Lat AND Lon = @Lon AND h = @h AND Dist = @Dist AND QRG = @QRG AND Radius = @Radius AND F1_Clearance = @F1_Clearance AND StepWidth = @StepWidth";
db.DBCommand.Parameters.Clear();
db.DBCommand.Parameters.Add(hor.AsDouble("Lat"));
db.DBCommand.Parameters.Add(hor.AsDouble("Lon"));
db.DBCommand.Parameters.Add(hor.AsDouble("h"));
db.DBCommand.Parameters.Add(hor.AsDouble("Dist"));
db.DBCommand.Parameters.Add(hor.AsDouble("QRG"));
db.DBCommand.Parameters.Add(hor.AsDouble("Radius"));
db.DBCommand.Parameters.Add(hor.AsDouble("F1_Clearance"));
db.DBCommand.Parameters.Add(hor.AsDouble("StepWidth"));
DataTable Result = db.Select(db.DBCommand);
if ((Result != null) && (Result.Rows.Count > 0))
{
return(new PropagationHorizonDesignator(Result.Rows[0], obstr));
}
}
return(null);
}
public PropagationHorizonDesignator PropagationHorizonFindOrCreate(BackgroundWorker caller, double lat, double lon, double h, double dist, double qrg, double radius, double f1_clearance, double stepwidth, ELEVATIONMODEL model, LocalObstructionDesignator localobstruction, bool savetodatabase = true)
{
PropagationHorizonDesignator hd = this.PropagationHorizonFind(lat, lon, h, dist, qrg, radius, f1_clearance, stepwidth, model, localobstruction);
if (hd == null)
{
hd = PropagationHorizonCreate(caller, lat, lon, h, dist, qrg, radius, f1_clearance, stepwidth, model, localobstruction, savetodatabase);
}
return(hd);
}
public void PropagationHorizonInsertOrUpdateIfNewer(PropagationHorizonDesignator hor, ELEVATIONMODEL model)
{
System.Data.SQLite.SQLiteDatabase db = GetPropagationDatabase(model);
DateTime dt = this.PropagationHorizonFindLastUpdated(hor, model);
if (dt == DateTime.MinValue)
{
this.PropagationHorizonInsert(hor, model);
}
else if (dt < hor.LastUpdated)
{
this.PropagationHorizonUpdate(hor, model);
}
}
public int PropagationHorizonDelete(PropagationHorizonDesignator hor, ELEVATIONMODEL model)
{
System.Data.SQLite.SQLiteDatabase db = GetPropagationDatabase(model);
lock (db.DBCommand)
{
db.DBCommand.CommandText = "DELETE FROM " + PropagationHorizonDesignator.TableName + " WHERE Lat = @Lat AND Lon = @Lon AND h = @h AND Dist = @Dist AND QRG = @QRG AND Radius = @Radius AND F1_Clearance = @F1_Clearance AND StepWidth = @StepWidth";
db.DBCommand.Parameters.Clear();
db.DBCommand.Parameters.Add(hor.AsDouble("Lat"));
db.DBCommand.Parameters.Add(hor.AsDouble("Lon"));
db.DBCommand.Parameters.Add(hor.AsDouble("h"));
db.DBCommand.Parameters.Add(hor.AsDouble("Dist"));
db.DBCommand.Parameters.Add(hor.AsDouble("QRG"));
db.DBCommand.Parameters.Add(hor.AsDouble("Radius"));
db.DBCommand.Parameters.Add(hor.AsDouble("F1_Clearance"));
db.DBCommand.Parameters.Add(hor.AsDouble("StepWidth"));
return(db.ExecuteNonQuery(db.DBCommand));
}
}
public int PropagationHorizonUpdate(PropagationHorizonDesignator hor, ELEVATIONMODEL model)
{
System.Data.SQLite.SQLiteDatabase db = GetPropagationDatabase(model);
lock (db.DBCommand)
{
db.DBCommand.CommandText = "UPDATE " + PropagationHorizonDesignator.TableName + " SET Lat = @Lat, Lon = @Lon, h = @h, Dist = @Dist, QRG = @QRG, Radius = @Radius, F1_Clearance = @F1_Clearance, @StepWidth = @StepWidth, Horizon = @Horizon, LastUpdated = @LastUpdated WHERE Lat = @Lat AND Lon = @Lon AND h = @h AND Dist = @Dist AND QRG = @QRG AND Radius = @Radius AND F1_Clearance = @F1_Clearance AND StepWidth = @StepWidth";
db.DBCommand.Parameters.Clear();
db.DBCommand.Parameters.Add(hor.AsDouble("Lat"));
db.DBCommand.Parameters.Add(hor.AsDouble("Lon"));
db.DBCommand.Parameters.Add(hor.AsDouble("h"));
db.DBCommand.Parameters.Add(hor.AsDouble("Dist"));
db.DBCommand.Parameters.Add(hor.AsDouble("QRG"));
db.DBCommand.Parameters.Add(hor.AsDouble("Radius"));
db.DBCommand.Parameters.Add(hor.AsDouble("F1_Clearance"));
db.DBCommand.Parameters.Add(hor.AsDouble("StepWidth"));
db.DBCommand.Parameters.Add(hor.AsBinary("Horizon"));
db.DBCommand.Parameters.Add(hor.AsUNIXTime("LastUpdated"));
return(db.ExecuteNonQuery(db.DBCommand));
}
}
public int PropagationHorizonInsert(PropagationHorizonDesignator hor, ELEVATIONMODEL model)
{
System.Data.SQLite.SQLiteDatabase db = GetPropagationDatabase(model);
lock (db.DBCommand)
{
db.DBCommand.CommandText = "INSERT INTO " + PropagationHorizonDesignator.TableName + " (Lat, Lon, h, Dist, QRG, Radius, F1_Clearance, StepWidth, Horizon, LastUpdated) VALUES (@Lat, @Lon, @h, @Dist, @QRG, @Radius, @F1_Clearance, @StepWidth, @Horizon, @LastUpdated)";
db.DBCommand.Parameters.Clear();
db.DBCommand.Parameters.Add(hor.AsDouble("Lat"));
db.DBCommand.Parameters.Add(hor.AsDouble("Lon"));
db.DBCommand.Parameters.Add(hor.AsDouble("h"));
db.DBCommand.Parameters.Add(hor.AsDouble("Dist"));
db.DBCommand.Parameters.Add(hor.AsDouble("QRG"));
db.DBCommand.Parameters.Add(hor.AsDouble("Radius"));
db.DBCommand.Parameters.Add(hor.AsDouble("F1_Clearance"));
db.DBCommand.Parameters.Add(hor.AsDouble("StepWidth"));
db.DBCommand.Parameters.Add(hor.AsBinary("Horizon"));
db.DBCommand.Parameters.Add(hor.AsUNIXTime("LastUpdated"));
return(db.ExecuteNonQuery(db.DBCommand));
}
}
public DateTime PropagationHorizonFindLastUpdated(PropagationHorizonDesignator hor, ELEVATIONMODEL model)
{
System.Data.SQLite.SQLiteDatabase db = GetPropagationDatabase(model);
lock (db.DBCommand)
{
db.DBCommand.CommandText = "SELECT LastUpdated FROM " + PropagationHorizonDesignator.TableName + " WHERE Lat = @Lat AND Lon = @Lon AND h = @h AND Dist = @Dist AND QRG = @QRG AND Radius = @Radius AND F1_Clearance = @F1_Clearance AND StepWidth = @StepWidth";
db.DBCommand.Parameters.Clear();
db.DBCommand.Parameters.Add(hor.AsDouble("Lat"));
db.DBCommand.Parameters.Add(hor.AsDouble("Lon"));
db.DBCommand.Parameters.Add(hor.AsDouble("h"));
db.DBCommand.Parameters.Add(hor.AsDouble("Dist"));
db.DBCommand.Parameters.Add(hor.AsDouble("QRG"));
db.DBCommand.Parameters.Add(hor.AsDouble("Radius"));
db.DBCommand.Parameters.Add(hor.AsDouble("F1_Clearance"));
db.DBCommand.Parameters.Add(hor.AsDouble("StepWidth"));
object result = db.ExecuteScalar(db.DBCommand);
if (result != null)
{
return(SQLiteEntry.UNIXTimeToDateTime((int)result));
}
}
return(DateTime.MinValue);
}
public bool PropagationHorizonExists(PropagationHorizonDesignator hor, ELEVATIONMODEL model)
{
System.Data.SQLite.SQLiteDatabase db = GetPropagationDatabase(model);
lock (db.DBCommand)
{
db.DBCommand.CommandText = "SELECT EXISTS (SELECT LastUpdated FROM " + PropagationHorizonDesignator.TableName + " WHERE Lat = @Lat AND Lon = @Lon AND h = @h AND Dist = @Dist AND QRG = @QRG AND Radius = @Radius AND F1_Clearance = @F1_Clearance AND StepWidth = @StepWidth)";
db.DBCommand.Parameters.Clear();
db.DBCommand.Parameters.Add(hor.AsDouble("Lat"));
db.DBCommand.Parameters.Add(hor.AsDouble("Lon"));
db.DBCommand.Parameters.Add(hor.AsDouble("h"));
db.DBCommand.Parameters.Add(hor.AsDouble("Dist"));
db.DBCommand.Parameters.Add(hor.AsDouble("QRG"));
db.DBCommand.Parameters.Add(hor.AsDouble("Radius"));
db.DBCommand.Parameters.Add(hor.AsDouble("F1_Clearance"));
db.DBCommand.Parameters.Add(hor.AsDouble("StepWidth"));
long result = (long)db.DBCommand.ExecuteScalar();
if (result > 0)
{
return(true);
}
}
return(false);
}
public PropagationHorizonDesignator PropagationHorizonCreate(BackgroundWorker caller, double lat, double lon, double h, double dist, double qrg, double radius, double f1_clearance, double stepwidth, ELEVATIONMODEL model, LocalObstructionDesignator localobstruction, bool savetodatabase = true)
{
// calculate propagation horizon
// report status messages and single data points if called from background thread
HorizonPoint[] hor = new HorizonPoint[360];
bool valid = true;
PropagationHorizonDesignator hd = new PropagationHorizonDesignator(lat, lon, h, dist, qrg, radius, f1_clearance, stepwidth, hor, localobstruction);
for (int j = 0; j < 360; j++)
{
// report progress if called from background worker
if (caller != null)
{
if (caller.WorkerReportsProgress)
{
caller.ReportProgress(-1, "Calculating horizon " + j.ToString() + "° of 360°");
}
}
double eps_min = double.MinValue;
double eps_dist = 0;
short eps_elv = 0;
// find or create elevation path
ElevationPathDesignator ep = ElevationData.Database.ElevationPathFindOrCreateFromBearing(caller, lat, lon, j, dist, stepwidth, model, false);
for (int i = 0; i < ep.Count; i++)
{
double d = i * stepwidth / 1000.0;
double nf = NearFieldSuppression / 1000.0;
double eps;
if (d > nf)
{
double f1c = ScoutBase.Core.Propagation.F1Radius(qrg, d, dist) * f1_clearance;
eps = ScoutBase.Core.Propagation.EpsilonFromHeights(h, d, ep.Path[i] + f1c, radius);
}
else
{
double f1c = ScoutBase.Core.Propagation.F1Radius(qrg, nf, dist) * f1_clearance;
eps = ScoutBase.Core.Propagation.EpsilonFromHeights(h, nf, ep.Path[i] + f1c, radius);
}
if (eps > eps_min)
{
eps_min = eps;
eps_dist = d;
eps_elv = ep.Path[i];
}
}
hor[j] = new HorizonPoint(eps_dist, eps_min, eps_elv);
// report current horizon if called from background worker
if (caller != null)
{
if (caller.WorkerReportsProgress)
{
caller.ReportProgress(j, hor[j]);
}
}
// take status from elevation path
if (!ep.Valid)
{
valid = false;
}
// abort calculation if called from background worker and cancellation pending
if (caller != null)
{
if (caller.WorkerSupportsCancellation && caller.CancellationPending)
{
return(null);
}
}
}
// copy over the horizon and status
hd.Horizon = hor;
hd.Valid = valid;
// store in database if valid
if ((hd != null) && hd.Valid && savetodatabase)
{
this.PropagationHorizonInsertOrUpdateIfNewer(hd, model);
}
return(hd);
}
public DateTime PropagationHorizonFindLastUpdated(double lat, double lon, double h, double dist, double qrg, double radius, double f1_clearance, double stepwidth, ELEVATIONMODEL model)
{
PropagationHorizonDesignator path = new PropagationHorizonDesignator(lat, lon, h, dist, qrg, radius, f1_clearance, stepwidth, null);
return(this.PropagationHorizonFindLastUpdated(path, model));
}
public PropagationHorizonDesignator PropagationHorizonFind(double lat, double lon, double h, double dist, double qrg, double radius, double f1_clearance, double stepwidth, ELEVATIONMODEL model, LocalObstructionDesignator localobstruction)
{
PropagationHorizonDesignator hor = new PropagationHorizonDesignator(lat, lon, h, dist, qrg, radius, f1_clearance, stepwidth, localobstruction);
return(this.PropagationHorizonFind(hor, model));
}
