Method addSP_Constraint

DEVELOPER/core/Domain.cpp:513–577

//

bool
Domain::addSP_Constraint(SP_Constraint *spConstraint)
{
  //#ifdef _G3DEBUG    
    // check the Node exists in the Domain
    int nodeTag = spConstraint->getNodeTag();
    int dof = spConstraint->getDOF_Number();

    Node *nodePtr = this->getNode(nodeTag);
    if (nodePtr == 0) {
      opserr << "Domain::addSP_Constraint - cannot add as node node with tag" <<
	nodeTag << "does not exist in model\n";       	
      return false;
    }

    // check that the DOF specified exists at the Node
    int numDOF = nodePtr->getNumberDOF();
    if (numDOF < dof) {
	opserr << "Domain::addSP_Constraint - cannot add as node with tag" << 
	  nodeTag << "does not have associated constrained DOF\n"; 
	return false;
    }      
    // #endif

    // check if an existing SP_COnstraint exists for that dof at the node
    bool found = false;
    SP_ConstraintIter &theExistingSPs = this->getSPs();
    SP_Constraint *theExistingSP = 0;
    while ((found == false) && ((theExistingSP = theExistingSPs()) != 0)) {
      int spNodeTag = theExistingSP->getNodeTag();
      int spDof = theExistingSP->getDOF_Number();
      if (nodeTag == spNodeTag && spDof == dof) {
	found = true;
      }
    }
    
    if (found == true) {
	opserr << "Domain::addSP_Constraint - cannot add as node already constrained in that dof by existing SP_Constraint\n";
	spConstraint->Print(opserr);
	return false;
    }

  // check that no other object with similar tag exists in model
  int tag = spConstraint->getTag();
  TaggedObject *other = theSPs->getComponentPtr(tag);
  if (other != 0) {
    opserr << "Domain::addSP_Constraint - cannot add as constraint with tag " << 
      tag << "already exists in model\n";             
    spConstraint->Print(opserr);

    return false;
  }
  
  bool result = theSPs->addComponent(spConstraint);
  if (result == false) {
      opserr << "Domain::addSP_Constraint - cannot add constraint with tag" << 
	tag << "to the container\n";             
      return false;