/// <summary>
/// Calculate the flow with the fixture units and flow conversion mode - need to read the table(flushValves and flushTanks) .
/// </summary>
/// <param name="data">
/// The input for the flow calculation. The result flow is also return through the data to the caller.
/// </param>
/// Return Value: Flow - the units is GPM (gallon (U.S.) per minute (gpm) (gal/min))
private double getFlowFromFixtureUnits(double dFixtureUnits, FlowConversionMode eFlowConversionMode)
{
if ((dFixtureUnits < 0) || AlmostZero(dFixtureUnits))
{
return(0);
}
initilizeflushTanks();
initilizeflushValves();
System.Collections.Generic.ICollection <KeyValuePair <double, double> > points = flushTanks;
int size = flushTanks.Count;
double dFlow = 0;
if (eFlowConversionMode == FlowConversionMode.Valves)
{
points = flushValves;
size = flushValves.Count;
}
else if (eFlowConversionMode == FlowConversionMode.Tanks)
{
points = flushTanks;
size = flushTanks.Count;
}
else
{
return(dFlow);
}
if (dFixtureUnits < points.ElementAt(0).Key)
{
dFlow = points.ElementAt(0).Value;
}
else
{
bool bInTable = false;
int ii = 0;
for ( ; ii < size; ii++)
{
if (dFixtureUnits <= points.ElementAt(ii).Key)
{
bInTable = true;
break;
}
}
KeyValuePair <double, double> p1, p2;
if (bInTable)
{
p1 = points.ElementAt(ii);
if (ii == 0)
{
p2 = points.ElementAt(ii + 1);
}
else
{
p2 = points.ElementAt(ii - 1);
}
}
else
{
p1 = points.ElementAt(size - 2);
p2 = points.ElementAt(size - 1);
}
double x1 = p1.Key;
double y1 = p1.Value;
double x2 = p2.Key;
double y2 = p2.Value;
double x = dFixtureUnits;
double y = (x * y2 - x1 * y2 + x2 * y1 - x * y1) / (x2 - x1);
dFlow = y;
}
return(dFlow);
}
/// <summary>
/// Calculate the flow with the fixture units and flow conversion mode - need to read the table(flushValves and flushTanks) .
/// </summary>
/// <param name="data">
/// The input for the flow calculation. The result flow is also return through the data to the caller.
/// </param>
/// Return Value: Flow - the units is GPM (gallon (U.S.) per minute (gpm) (gal/min))
private double getFlowFromFixtureUnits( double dFixtureUnits, FlowConversionMode eFlowConversionMode )
{
if( ( dFixtureUnits < 0 ) || AlmostZero( dFixtureUnits ) )
return 0;
initilizeflushTanks();
initilizeflushValves();
System.Collections.Generic.ICollection<KeyValuePair<double, double>> points = flushTanks;
int size = flushTanks.Count;
double dFlow = 0;
if( eFlowConversionMode == FlowConversionMode.Valves )
{
points = flushValves;
size = flushValves.Count;
}
else if( eFlowConversionMode == FlowConversionMode.Tanks )
{
points = flushTanks;
size = flushTanks.Count;
}
else
{
return dFlow;
}
if( dFixtureUnits < points.ElementAt( 0 ).Key )
{
dFlow = points.ElementAt( 0 ).Value;
}
else
{
bool bInTable = false;
int ii = 0;
for( ; ii < size; ii++ )
{
if( dFixtureUnits <= points.ElementAt( ii ).Key )
{
bInTable = true;
break;
}
}
KeyValuePair<double, double> p1, p2;
if( bInTable )
{
p1 = points.ElementAt( ii );
if( ii == 0 )
p2 = points.ElementAt( ii + 1 );
else
p2 = points.ElementAt( ii - 1 );
}
else
{
p1 = points.ElementAt( size - 2 );
p2 = points.ElementAt( size - 1 );
}
double x1 = p1.Key;
double y1 = p1.Value;
double x2 = p2.Key;
double y2 = p2.Value;
double x = dFixtureUnits;
double y = ( x * y2 - x1 * y2 + x2 * y1 - x * y1 ) / ( x2 - x1 );
dFlow = y;
}
return dFlow;
}
