class LagrangeConstraintHandler : public ConstraintHandler

Inheritance:

Public Methods

LagrangeConstraintHandler(double alphaSP, double alphaMP)

~LagrangeConstraintHandler()

int handle(const ID *nodesNumberedLast =0)

void clearAll(void)

virtual int sendSelf(int commitTag, Channel &theChannel)

virtual int recvSelf(int commitTag, Channel &theChannel, FEM_ObjectBroker &theBroker)

Inherited from ConstraintHandler:

Public Methods

void setLinks(Domain &theDomain, AnalysisModel &theModel, Integrator &theIntegrator)

Protected Methods

Domain* getDomainPtr(void) const

AnalysisModel* getAnalysisModelPtr(void) const

Integrator* getIntegratorPtr(void) const

Inherited from MovableObject:

Public Methods

int getClassTag(void) const

int getDbTag(void) const

void setDbTag(int dbTag)

LagrangeConstraintHandler(double alphaSP, double alphaMP)

The integer HANDLER_TAG_LagrangeConstraintHandler (defined in <classTags.h>) is passed to the LagrangeConstraintHandler constructor. Stores alphaSP and alphaMP which are needed to construct the LagrangeSP_FE and LagrangeMP_FE objects in handle().

~LagrangeConstraintHandler()

Currently invokes clearAll(), this will change when clearAll() is rewritten

int handle(const ID *nodesNumberedLast =0)

Determines the number of FE_Elements and DOF_Groups needed from the Domain (a one to one mappinging between Elements and FE_Elements, SP_Constraints and LagrangeSP_FEs, MP_Constraints and LagrangeMP_FEs and Nodes and DOF_Groups). Creates two arrays of pointers to store the FE_Elements and DOF_Groups, returning a warning message and a -2 or -3 if not enough memory is available for these arrays. Then the object will iterate through the Nodes of the Domain, creating a DOF_Group for each node and setting the initial id for each dof to -2 or -3 if the node identifier is in nodesToBeNumberedLast. The object then iterates through the Elements of the Domain creating a FE_Element for each Element, if the Element is a Subdomain setFE_ElementPtr() is invoked on the Subdomain with the new FE_Element as the argument. If not enough memory is available for any DOF_Group or FE_element a warning message is printed and a -4 or -5 is returned. The object then iterates through the SP_Constraints of the Domain creating a LagrangeSP_FE for each constraint, using the Domain, the constraint and alphaSP as the arguments in the constructor. The object then iterates through the MP_Constraints of the Domain creating a LagrangeMP_FE for each constraint, using the Domain, the constraint and alphaMP as the arguments in the constructor. Finally the method returns the number of degrees-of-freedom associated with the DOF_Groups in nodesToBeNumberedLast.

void clearAll(void)

Currently this invokes delete on all the FE_element and DOF_Group objects created in handle() and the arrays used to store pointers to these objects. FOR ANALYSIS INVOLVING DYNAMIC LOAD BALANCING, RE-MESHING AND CONTACT THIS MUST CHANGE.

virtual int sendSelf(int commitTag, Channel &theChannel)

Sends in a Vector of size 2 alphaSP and alphaMP. Returns 0 if successful.

virtual int recvSelf(int commitTag, Channel &theChannel, FEM_ObjectBroker &theBroker)

Receives in a Vector of size 2 the values alphaSP and alphaMP. Returns 0 if successful.

This class has no child classes.

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