public ResTBHazardMapLayer(int Project, bool IsBeforeMitigationMeasure, NatHazard NatHazard, int Index) : base()
{
this.Project = Project;
this.NatHazard = NatHazard;
this.Index = Index;
LayerType = LayerType.ProjectLayer;
if (IsBeforeMitigationMeasure)
{
ResTBPostGISType = ResTBPostGISType.HazardMapBefore;
}
else
{
ResTBPostGISType = ResTBPostGISType.HazardMapAfter;
}
ExportImportFileName = "HazardMap";
this.SQL = "select * from \"HazardMap\" where \"Project_Id\" = " + Project + " and \"NatHazard_ID\" = " + NatHazard.ID + " and \"BeforeAction\" = " + IsBeforeMitigationMeasure + " and \"Index\" = " + Index;
SQL_Layer = "HazardMap";
ProjectID = "Project_Id";
if (IsBeforeMitigationMeasure)
{
VisibilityExpression = "[Project_Id] = " + Project + " AND [NatHazard_ID] = " + NatHazard.ID + " AND [Index] = " + Index + " AND [BeforeAction] = 1";
}
else
{
VisibilityExpression = "[Project_Id] = " + Project + " AND [NatHazard_ID] = " + NatHazard.ID + " AND [Index] = " + Index + " AND [BeforeAction] = 0";
}
Style = new Style.HazardMapStyle();
}
public static Tuple <double, string> computeResilienceFactor(List <ResilienceValues> allResilienceList, Intensity intensity)
{
NatHazard natHazard = intensity.NatHazard;
bool beforeAction = intensity.BeforeAction; //--> to distinguish the before/after resilience
int _resilienceHazardID;
if (natHazard?.ID == 1) // Sequia
{
_resilienceHazardID = 1;
}
else //other nathazards
{
_resilienceHazardID = 2;
}
// use only resilience values of given nathazard
List <ResilienceValues> _resilienceList = allResilienceList
.Where(r => r.ResilienceWeight.NatHazard.ID == _resilienceHazardID && r.ResilienceWeight.BeforeAction == beforeAction).ToList();
List <string> _logString1 = new List <string>();
List <string> _logString2 = new List <string>();
List <string> _logIDStrings = new List <string>();
//if list is empty: factor = 0
if (_resilienceList == null || !_resilienceList.Any())
{
return(new Tuple <double, string>(0.0d, "no resiliece values found"));
}
double _sumWeight = 0;
double _sumValueWeight = 0;
foreach (ResilienceValues item in _resilienceList)
{
_sumValueWeight += item.Value * item.Weight;
var string1 = $" ({item.Value} * {item.Weight}) ";
_logString1.Add(string1);
_sumWeight += item.Weight;
var string2 = $" {item.Weight} ";
_logString2.Add(string2);
_logIDStrings.Add(item.ResilienceWeight.ResilienceFactor_ID + $" V{item.Value:F2} W{item.Weight:F1}");
}
string _logResilienceFactor = $"ResilienceFactor (c{_resilienceHazardID}) = " +
String.Join("+", _logString1) + " / (" + String.Join("+", _logString2) + ")" +
";\n ResilienceValues: " + String.Join("; \n", _logIDStrings);;
if (_sumWeight == 0) //avoid division by 0
{
return(new Tuple <double, string>(0.0d, _logResilienceFactor));
}
else
{
double _resilienceFactor = _sumValueWeight / _sumWeight;
var _result = new Tuple <double, string>(_resilienceFactor, _logResilienceFactor);
return(_result);
}
}