int
ArcLength::domainChanged(void)
{
// we first create the Vectors needed
AnalysisModel *theModel = this->getAnalysisModel();
LinearSOE *theLinSOE = this->getLinearSOE();
if (theModel == 0 || theLinSOE == 0) {
opserr << "WARNING ArcLength::update() ";
opserr << "No AnalysisModel or LinearSOE has been set\n";
return -1;
}
int size = theModel->getNumEqn(); // ask model in case N+1 space
if (deltaUhat == 0 || deltaUhat->Size() != size) { // create new Vector
if (deltaUhat != 0)
delete deltaUhat; // delete the old
deltaUhat = new Vector(size);
if (deltaUhat == 0 || deltaUhat->Size() != size) { // check got it
opserr << "FATAL ArcLength::domainChanged() - ran out of memory for";
opserr << " deltaUhat Vector of size " << size << endln;
exit(-1);
}
}
if (deltaUbar == 0 || deltaUbar->Size() != size) { // create new Vector
if (deltaUbar != 0)
delete deltaUbar; // delete the old
deltaUbar = new Vector(size);
if (deltaUbar == 0 || deltaUbar->Size() != size) { // check got it
opserr << "FATAL ArcLength::domainChanged() - ran out of memory for";
opserr << " deltaUbar Vector of size " << size << endln;
exit(-1);
}
}
if (deltaU == 0 || deltaU->Size() != size) { // create new Vector
if (deltaU != 0)
delete deltaU; // delete the old
deltaU = new Vector(size);
if (deltaU == 0 || deltaU->Size() != size) { // check got it
opserr << "FATAL ArcLength::domainChanged() - ran out of memory for";
opserr << " deltaU Vector of size " << size << endln;
exit(-1);
}
}
if (deltaUstep == 0 || deltaUstep->Size() != size) {
if (deltaUstep != 0)
delete deltaUstep;
deltaUstep = new Vector(size);
if (deltaUstep == 0 || deltaUstep->Size() != size) {
opserr << "FATAL ArcLength::domainChanged() - ran out of memory for";
opserr << " deltaUstep Vector of size " << size << endln;
exit(-1);
}
}
if (phat == 0 || phat->Size() != size) {
if (phat != 0)
delete phat;
phat = new Vector(size);
if (phat == 0 || phat->Size() != size) {
opserr << "FATAL ArcLength::domainChanged() - ran out of memory for";
opserr << " phat Vector of size " << size << endln;
exit(-1);
}
}
// now we have to determine phat
// do this by incrementing lambda by 1, applying load
// and getting phat from unbalance.
currentLambda = theModel->getCurrentDomainTime();
currentLambda += 1.0;
theModel->applyLoadDomain(currentLambda);
this->formUnbalance(); // NOTE: this assumes unbalance at last was 0
(*phat) = theLinSOE->getB();
currentLambda -= 1.0;
theModel->setCurrentDomainTime(currentLambda);
// check there is a reference load
int haveLoad = 0;
for (int i=0; i<size; i++)
if ( (*phat)(i) != 0.0 ) {
haveLoad = 1;
i = size;
}
if (haveLoad == 0) {
opserr << "WARNING ArcLength::domainChanged() - zero reference load";
return -1;
}
return 0;
}
int
DisplacementControl::domainChanged(void)
{
// we first create the Vectors needed
AnalysisModel *theModel = this->getAnalysisModel();
LinearSOE *theLinSOE = this->getLinearSOE();
if (theModel == 0 || theLinSOE == 0) {
opserr << "WARNING DisplacementControl::update() ";
opserr << "No AnalysisModel or LinearSOE has been set\n";
return -1;
}
int size = theModel->getNumEqn(); // ask model in case N+1 space
if (deltaUhat == 0 || deltaUhat->Size() != size) { // create new Vector
if (deltaUhat != 0)
delete deltaUhat; // delete the old
deltaUhat = new Vector(size);
if (deltaUhat == 0 || deltaUhat->Size() != size) { // check got it
opserr << "FATAL DisplacementControl::domainChanged() - ran out of memory for";
opserr << " deltaUhat Vector of size " << size << endln;
exit(-1);
}
}
if (deltaUbar == 0 || deltaUbar->Size() != size) { // create new Vector
if (deltaUbar != 0)
delete deltaUbar; // delete the old
deltaUbar = new Vector(size);
if (deltaUbar == 0 || deltaUbar->Size() != size) { // check got it
opserr << "FATAL DisplacementControl::domainChanged() - ran out of memory for";
opserr << " deltaUbar Vector of size " << size << endln;
exit(-1);
}
}
if (deltaU == 0 || deltaU->Size() != size) { // create new Vector
if (deltaU != 0)
delete deltaU; // delete the old
deltaU = new Vector(size);
if (deltaU == 0 || deltaU->Size() != size) { // check got it
opserr << "FATAL DisplacementControl::domainChanged() - ran out of memory for";
opserr << " deltaU Vector of size " << size << endln;
exit(-1);
}
}
if (deltaUstep == 0 || deltaUstep->Size() != size) {
if (deltaUstep != 0)
delete deltaUstep;
deltaUstep = new Vector(size);
if (deltaUstep == 0 || deltaUstep->Size() != size) {
opserr << "FATAL DisplacementControl::domainChanged() - ran out of memory for";
opserr << " deltaUstep Vector of size " << size << endln;
exit(-1);
}
}
if (phat == 0 || phat->Size() != size) {
if (phat != 0)
delete phat;
phat = new Vector(size);
if (phat == 0 || phat->Size() != size) {
opserr << "FATAL DisplacementControl::domainChanged() - ran out of memory for";
opserr << " phat Vector of size " << size << endln;
exit(-1);
}
}
// now we have to determine phat
// do this by incrementing lambda by 1, applying load
// and getting phat from unbalance.
currentLambda = theModel->getCurrentDomainTime();
currentLambda += 1.0;
theModel->applyLoadDomain(currentLambda);
this->formUnbalance(); // NOTE: this assumes unbalance at last was 0
(*phat) = theLinSOE->getB();
currentLambda -= 1.0;
theModel->setCurrentDomainTime(currentLambda);
// check there is a reference load
int haveLoad = 0;
for (int i=0; i<size; i++)
if ( (*phat)(i) != 0.0 ) {
haveLoad = 1;
i = size;
}
if (haveLoad == 0) {
opserr << "WARNING DisplacementControl::domainChanged() - zero reference load";
return -1;
}
// lastly we determine the id of the nodal dof
// EXTRA CODE TO DO SOME ERROR CHECKING REQUIRED
Node *theNodePtr = theDomain->getNode(theNode);
if (theNodePtr == 0) {
opserr << "DisplacementControl::domainChanged - no node\n";
return -1;
}
DOF_Group *theGroup = theNodePtr->getDOF_GroupPtr();
if (theGroup == 0) {
return 0;
}
const ID &theID = theGroup->getID();
theDofID = theID(theDof);
return 0;
}
