Pattern Command
The pattern command is used to construct a LoadPattern. A LoadPattern in OpenSees
<uml>
abstract class ElementLoad
abstract class TimeSeries
LoadPattern <|-- UniformExcitation
LoadPattern <|-- MultipleExcitation
LoadPattern o- "one" TimeSeries
LoadPattern o- ElementLoad
LoadPattern o- NodalLoad
LoadPattern o- SP_Constraint
</uml>