DbDouble

Represents a real dimensioned quantity which can be constructed from an expression and/or a format or returned from DbElement. For example, create a DbDouble from a real value

DbDouble d1 = DbDouble.Create(1.0);

or create a DbDouble from a string expression

DbDouble d1 = DbDouble.Create("1.0kg");

or get a dimensioned attribute from DbElement as a DbDouble

DbElement bran = DbElement.GetElement("/100-B-1-B1");

DbDouble hbor = bran.GetDbDouble(DbAttributeInstance.HBOR);

DbDouble's may also be used to set dimensioned attributes. For example, setting the HBOR of a branch

DbElement bran = DbElement.GetElement("/100-B-1-B1");

DbDouble hbor = DbDouble.Create("300", fbore)

bran.SetAttribute(DbAttributeInstance.HBOR, hbor);

Quantities of dimension BORE may be created as follows from a real value

DbDouble bore = DbDouble.CreateBore(300);

or a string expression and a format

DbFormat fbore = DbFormat.Create();

fbore.Dimension = DbDoubleDimension.GetDimension(DbDimension.DIST);

fbore.Units = DbDoubleUnits.GetUnits(DbUnits.FINC);

DbDouble bore = DbDouble.CreateBore("12", fbore);

returning the nearest nominal bore depending on the current BORE units. There are also properties to return the units, dimension etc. For example, get the units of given DbDouble

DbDouble d1 = DbDouble.Create("2m");

DbDoubleUnits u1 = d1.Units;

To return a formatted string, For example

DbFormat ftemp = DbFormat.Create();

ftemp.Dimension = DbDoubleDimension.GetDimension(DbDimension.TEMP);

ftemp.Units = DbDoubleUnits.GetUnits("degRankine");

ftemp.Label = "degRan";

DbDouble t1 = DbDouble.Create("3 celsius");

String tempStr = t1.ToString(ftemp);

and to convert to different units

DbDouble d1 = DbDouble.Create("1kg");

DbDouble d2 = d1.ConvertUnits(DbDoubleUnits.GetUnits(DbUnits.LB));

DbDouble also implements the expected binary operator overloads '+', '-', '\', '*', '==', '!=', '<', '<=', '>' and '>=' allowing arithmetic operations and comparison of dimensioned quantities. For example, adding 2 quantities of the same dimension together

d1 = DbDouble.Create("1 kg");

d2 = DbDouble.Create("2.2046 lb");

d3 = d1 + d2;