本文整理汇总了C++中TPZFMatrix::Identity方法的典型用法代码示例。如果您正苦于以下问题：C++ TPZFMatrix::Identity方法的具体用法？C++ TPZFMatrix::Identity怎么用？C++ TPZFMatrix::Identity使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类TPZFMatrix的用法示例。
在下文中一共展示了TPZFMatrix::Identity方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: ProjectSigmaDep
void TPZYCCamClayPV::ProjectSigmaDep(const TPZVec<REAL> &sigma_trial_pv, const REAL aPrev, TPZVec<REAL> &sigma, REAL &aProj, TPZFMatrix<REAL> &GradSigma) const {
TPZVec<REAL> yield(NYield);
this->Phi(sigma_trial_pv, aPrev, yield);
if (yield[0] <= 0.) {
sigma = sigma_trial_pv;
aProj = aPrev;
GradSigma.Identity();
} else {
const REAL tol=1.e-5;
bool threeEigEqual = (fabs(sigma_trial_pv[0] - sigma_trial_pv[1]) < tol && fabs(sigma_trial_pv[1] - sigma_trial_pv[2]) < tol);
// if (threeEigEqual){
// ProjectToSurfaceConstantBeta(sigma_trial_pv, aPrev, sigma, aProj, 1.e-5);
// // we can compute the tangent matrix
// STATE theta, beta;
// SurfaceParam(sigma, aProj, theta, beta);
// TPZFNMatrix<9, STATE> ddist_dsigmatrial(3, 3), jac(3, 3), DFunccart(3, 3);
// GradSigmaTrial(sigma_trial_pv, theta, beta, aProj, ddist_dsigmatrial);
// D2DistanceToSurface(sigma_trial_pv, theta, beta, aProj, jac);
// jac.Solve_LU(&ddist_dsigmatrial);
// DFuncCart(theta, beta, aProj, DFunccart);
// DFunccart.Multiply(ddist_dsigmatrial, GradSigma);
// GradSigma *= -1.;
// } else {
ProjectToSurface(sigma_trial_pv, aPrev, sigma, aProj, 1.e-5);
// we can compute the tangent matrix
STATE theta, beta;
SurfaceParam(sigma, aProj, theta, beta);
TPZFNMatrix<9, STATE> ddist_dsigmatrial(3, 3), jac(3, 3), DFunccart(3, 3);
GradSigmaTrial(sigma_trial_pv, theta, beta, aProj, ddist_dsigmatrial);
D2DistanceToSurface(sigma_trial_pv, theta, beta, aProj, jac);
jac.Solve_LU(&ddist_dsigmatrial);
DFuncCart(theta, beta, aProj, DFunccart);
DFunccart.Multiply(ddist_dsigmatrial, GradSigma);
GradSigma *= -1.;
// }
}
}示例2: MapToSide
//.........这里部分代码省略.........
}
else
{
SidePar[0] = 1. - 2.*qsi/(qsi + eta);
JacToSide(0,0) = -2.*eta/((qsi+eta)*(qsi+eta)); JacToSide(0,1) = 2.*qsi/((qsi+eta)*(qsi+eta)); JacToSide(0,2) = 0.;
}
break;
case 14://1D
SidePar.Resize(1); JacToSide.Resize(1,3);
if(fabs((T)(qsi-1.)) < zero)
{
SidePar[0] = 0.;
JacToSide(0,0) = 1.; JacToSide(0,1) = 1.; JacToSide(0,2) = 0.;
regularmap = false;
}
else
{
SidePar[0] = 1. - 2.*eta/(1.-qsi);
JacToSide(0,0) = -2.*eta/((1.-qsi)*(1.-qsi)); JacToSide(0,1) = -2./(1.-qsi); JacToSide(0,2) = 0.;
}
break;
case 15://2D - triangle
SidePar.Resize(2); JacToSide.Resize(2,3);
SidePar[0] = qsi; SidePar[1] = eta;
JacToSide(0,0) = 1.; JacToSide(0,1) = 0.; JacToSide(0,2) = 0.;
JacToSide(1,0) = 0.; JacToSide(1,1) = 1.; JacToSide(1,2) = 0.;
break;
case 16://2D - quadrilateral
SidePar.Resize(2); JacToSide.Resize(2,3);
if(fabs((T)(eta-1.)) < zero)
{
SidePar[0] = 0.; SidePar[1] = zeta;
JacToSide(0,0) = 1.; JacToSide(0,1) = 1.; JacToSide(0,2) = 0.;
JacToSide(1,0) = 0.; JacToSide(1,1) = 0.; JacToSide(1,2) = 1.;
regularmap = false;
}
else
{
SidePar[0] = 2.*qsi/(1.-eta) - 1.; SidePar[1] = zeta;
JacToSide(0,0) = 2./(1.-eta); JacToSide(0,1) = 2.*qsi/((1.-eta)*(1.-eta)); JacToSide(0,2) = 0.;
JacToSide(1,0) = 0.; JacToSide(1,1) = 0.; JacToSide(0,2) = 1.;
}
break;
case 17://2D - quadrilateral
SidePar.Resize(2); JacToSide.Resize(2,3);
if(fabs((T)(qsi+eta)) < zero)
{
SidePar[0] = 0.; SidePar[1] = zeta;
JacToSide(0,0) = 1.; JacToSide(0,1) = 1.; JacToSide(0,2) = 0.;
JacToSide(1,0) = 0.; JacToSide(1,1) = 0.; JacToSide(1,2) = 1.;
regularmap = false;
}
else
{
SidePar[0] = 1. - 2.*qsi/(qsi + eta); SidePar[1] = zeta;
JacToSide(0,0) = -2.*eta/((qsi+eta)*(qsi+eta)); JacToSide(0,1) = 2.*qsi/((qsi+eta)*(qsi+eta)); JacToSide(0,2) = 0.;
JacToSide(1,0) = 0.; JacToSide(1,1) = 0.; JacToSide(0,2) = 1.;
}
break;
case 18://2D - quadrilateral
SidePar.Resize(2); JacToSide.Resize(2,3);
if(fabs((T)(qsi-1.)) < zero)
{
SidePar[0] = 0.; SidePar[1] = zeta;
JacToSide(0,0) = 1.; JacToSide(0,1) = 1.; JacToSide(0,2) = 0.;
JacToSide(1,0) = 0.; JacToSide(1,1) = 0.; JacToSide(1,2) = 1.;
regularmap = false;
}
else
{
SidePar[0] = 1. - 2.*eta/(1.-qsi); SidePar[1] = zeta;
JacToSide(0,0) = -2.*eta/((1.-qsi)*(1.-qsi)); JacToSide(0,1) = -2./(1.-qsi); JacToSide(0,2) = 0.;
JacToSide(1,0) = 0.; JacToSide(1,1) = 0.; JacToSide(0,2) = 1.;
}
break;
case 19://2D - triangle
SidePar.Resize(2); JacToSide.Resize(2,3);
SidePar[0] = qsi; SidePar[1] = eta;
JacToSide(0,0) = 1.; JacToSide(0,1) = 0.; JacToSide(0,2) = 0.;
JacToSide(1,0) = 0.; JacToSide(1,1) = 1.; JacToSide(1,2) = 0.;
break;
case 20:
SidePar = InternalPar;
JacToSide.Resize(3, 3);
JacToSide.Identity();
break;
}
if(side > 20)
{
cout << "Cant compute MapToSide method in TPZGeoPrism class!\nParameter (SIDE) must be between 6 and 19!\nMethod Aborted!\n";
DebugStop();
}
return regularmap;
}