8.5.3.6 IfcRegularTimeSeries

8.5.3.6.1 Semantic definition

In a regular time series, the data arrives predictably at predefined intervals. In a regular time series there is no need to store multiple time stamps and the algorithms for analyzing the time series are therefore significantly simpler. Using the start time provided in the supertype, the time step is used to identify the frequency of the occurrences of the list of values.

8.5.3.6.2 Entity inheritance

8.5.3.6.3 Attributes

#	Attribute	Type	Description
IfcTimeSeries (9)
1	Name	IfcLabel	An unique name for the time series.
2	Description	OPTIONAL IfcText	A text description of the data that the series represents.
3	StartTime	IfcDateTime	The start time of a time series.
4	EndTime	IfcDateTime	The end time of a time series.
5	TimeSeriesDataType	IfcTimeSeriesDataTypeEnum	The time series data type.
6	DataOrigin	IfcDataOriginEnum	The origin of a time series data.
7	UserDefinedDataOrigin	OPTIONAL IfcLabel	Value of the data origin if DataOrigin attribute is USERDEFINED.
8	Unit	OPTIONAL IfcUnit	The unit to be assigned to all values within the time series. Note that mixing units is not allowed. If the value is not given, the global unit for the type of IfcValue, as defined at IfcProject.UnitsInContext is used.
	HasExternalReference	SET [1:?] OF IfcExternalReferenceRelationship FOR RelatedResourceObjects	Reference to an external reference, e.g. library, classification, or document information, that is associated to the IfcTimeSeries. IFC4-CHANGE New inverse attribute.
Click to show 9 hidden inherited attributes Click to hide 9 inherited attributes
IfcRegularTimeSeries (2)
9	TimeStep	IfcTimeMeasure	A duration of time intervals between values.
10	Values	LIST [1:?] OF IfcTimeSeriesValue	The collection of time series values.

Table A

8.5.3.6.4 Formal representation

ENTITY IfcRegularTimeSeries
SUBTYPE OF (IfcTimeSeries);
TimeStep : IfcTimeMeasure;
Values : LIST [1:?] OF IfcTimeSeriesValue;
END_ENTITY;

8.5.3.6.5 References

IfcTimeSeries