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 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;