Method getResponse

SRC/element/joint/Joint2D.cpp:1325–1471

}

int Joint2D::getResponse(int responseID, Information& eleInformation)
{
  switch (responseID) {
  case -1:
    return -1;

  case 1:
    if (eleInformation.theVector != 0)
    {
      const Vector& disp = theNodes[4]->getTrialDisp();
      (*(eleInformation.theVector))(0) = disp(0);
      (*(eleInformation.theVector))(1) = disp(1);
      (*(eleInformation.theVector))(2) = disp(2);
      (*(eleInformation.theVector))(3) = disp(3);
    }
    return 0;

  case 2:
    if (eleInformation.theVector != 0)
    {
      const Vector& node1Crd = theNodes[0]->getCrds();
      const Vector& node2Crd = theNodes[1]->getCrds();
      const Vector& node3Crd = theNodes[2]->getCrds();
      const Vector& node4Crd = theNodes[3]->getCrds();

      const Vector& node1Disp = theNodes[0]->getDisp();
      const Vector& node2Disp = theNodes[1]->getDisp();
      const Vector& node3Disp = theNodes[2]->getDisp();
      const Vector& node4Disp = theNodes[3]->getDisp();

      Vector v1(2);
      Vector v2(2);
      Vector v3(2);
      Vector v4(2);

      // calculate the current coordinates of four external nodes
      for (int i = 0; i < 2; i++)
      {
        v1(i) = node1Crd(i) + node1Disp(i);
        v2(i) = node2Crd(i) + node2Disp(i);
        v3(i) = node3Crd(i) + node3Disp(i);
        v4(i) = node4Crd(i) + node4Disp(i);
      }

      v3 = v3 - v1;
      v4 = v4 - v2;

      v1(0) = v3.Norm();
      v1(1) = v4.Norm();

      *(eleInformation.theVector) = v1;
    }
    return 0;

  case 3:
    if (eleInformation.theVector != 0)
    {
      for (int i = 0; i < 5; i++)