OpenTestSystem.Otx.Extensions.Quantities.DataTypes.Quantity Class Reference

A numeral value which has a display unit associated with it. More...

Inheritance diagram for OpenTestSystem.Otx.Extensions.Quantities.DataTypes.Quantity:

Public Attributes
QuantityLiteral	init
	Cardinality [0..1] This optional element represents the hard-coded value from which the declared Quantity shall be created. More...

Detailed Description

A numeral value which has a display unit associated with it.

A Quantity represents anumeral value which has a display unit associated with it. For instance, the value "5" is described more specifically by a Quantity that also contains information about the unit of the value, e.g. "5 km/h".

Literal
The syntax for Literals for complex data types will be used, a QuantityLiteral is the code representation of a value of type NumericQuantity.

value [@Unit, "NameOfTheReferencedOdxFile", "DisplayUnitAsString", displayPrecision]

Conversion terms
The following table shows the rules for conversion to another data type:

Conversion	Result	Sample
ToBoolean	Undefined (should not be used)
ToInteger	Returns the value of Quantity in integer value, float value will be truncated	Integer val = ToInteger(5.5 [@Unit, "BL_DataLibraMIB.odx", "km", 0]); // Returns 5
ToFloat	Returns the value of Quantity in float value	Float val = ToFloat(5.5 [@Unit, "BL_DataLibraMIB.odx", "km", 0]); // Returns 5.5
ToString	Returns the value of Quantity in string value	String s = ToString(5.5 [@Unit, "BL_DataLibraMIB.odx", "km", 0]); // Returns "5.5"
ToByteField	Undefined (should not be used)

Sample

Quantities.Quantity QuantityVariable = 5 [@Unit, "BL_DataLibraMIB.odx", "km/h", 0];

Member Data Documentation

init

QuantityLiteral OpenTestSystem.Otx.Extensions.Quantities.DataTypes.Quantity.init

Cardinality [0..1]
This optional element represents the hard-coded value from which the declared Quantity shall be created.

The literal includes a float-value, a display unit name and a display precision; when the Quantity is created, the float value shall be interpreted according to the display unit.