*SetUserConstraint()

Sets the values associated with a user constraint.

Syntax

*SetUserConstraint(ucon_name, USER, `expr`) 
*Set(ucon_name.use_local_dll, TRUE|FALSE) 
*Set(ucon_name.local_dll, string)

Arguments

ucon_name: The variable name of the user constraint.; Data type: varname
USER: Indicates the user-written subroutine is used to model the user constraint.
expr: The solver expression that sets the arguments for the user constraint.; Data type: string
ucon_name.use_local_dll: Specifies if a user subroutine DLL is specific to the instance of one user constraint entity.; Data type: boolean
TRUE|FALSE: Set to TRUE if a local DLL should be used.
ucon_name.local_dll: The path and filename for the user subroutine DLL to be used with an instance of the user constraint.; Data type: string

Example

*BeginMDL(the_model, "The Model")
*UserConstraint(ucon, "Example User Constraint")
*SetUserConstraint(ucon, USER, `USER( 300, 1, 2)`)
*Set(ucon.use_local_dll, TRUE)
*Set(ucon.local_dll, "C:/Test/myuserconstraint.dll")
*EndMDL()

Context

*BeginMdl()

*DefineAnalysis()

*DefineSystem()

Comments

This entity applies only when a user subroutine has been written that describes the degrees of freedom.

The user subroutine can be compiled into a DLL that is used specifically by this entity.