int main(int argc, char** argv) {
GammaFunction<size_t> G_1;
std::cout << "G_1(1): " << G_1(1) << std::endl;
if (G_1(1) != 1)
return 1;
std::cout << "G_1(2): " << G_1(2) << std::endl;
if (G_1(2) != 1)
return 1;
try {
std::cout << "G_1(0): " << G_1(0) << std::endl;
}
catch (BadArgumentException<size_t>& e) {
std::cout << e.what() << std::endl;
}
FactorialFunction f;
if (G_1(10) != f(9))
return 1;
GammaFunction<double> G_2;
std::cout << "G_2(0.5): " << G_2(0.5) << std::endl;
if (fabs(G_2(0.5) - sqrt(M_PI)) > std::numeric_limits<double>::epsilon())
return 1;
std::cout << "G_2(1.0): " << G_2(1.0) << std::endl;
if (fabs(G_2(1.0) - 1.0) > std::numeric_limits<double>::epsilon())
return 1;
return 0;
}
void SurfaceScalarGradient<EvalT, Traits>::
evaluateFields(typename Traits::EvalData workset)
{
ScalarT midPlaneAvg;
for (int cell=0; cell < workset.numCells; ++cell) {
for (int pt=0; pt < numQPs; ++pt) {
Intrepid2::Vector<MeshScalarT> G_0(3, refDualBasis, cell, pt, 0, 0);
Intrepid2::Vector<MeshScalarT> G_1(3, refDualBasis, cell, pt, 1, 0);
Intrepid2::Vector<MeshScalarT> G_2(3, refDualBasis, cell, pt, 2, 0);
Intrepid2::Vector<MeshScalarT> N(3, refNormal,cell, pt, 0);
Intrepid2::Vector<ScalarT> scalarGradPerpendicular(0, 0, 0);
Intrepid2::Vector<ScalarT> scalarGradParallel(0, 0, 0);
// Need to inverse basis [G_0 ; G_1; G_2] and none of them should be normalized
Intrepid2::Tensor<MeshScalarT> gBasis(3, refDualBasis,cell, pt, 0, 0);
Intrepid2::Tensor<MeshScalarT> invRefDualBasis(3);
// This map the position vector from parent to current configuration in R^3
gBasis = Intrepid2::transpose(gBasis);
invRefDualBasis = Intrepid2::inverse(gBasis);
Intrepid2::Vector<MeshScalarT> invG_0(3, &invRefDualBasis( 0, 0));
Intrepid2::Vector<MeshScalarT> invG_1(3, &invRefDualBasis( 1, 0));
Intrepid2::Vector<MeshScalarT> invG_2(3, &invRefDualBasis( 2, 0));
// in-plane (parallel) contribution
for (int node(0); node < numPlaneNodes; ++node) {
int topNode = node + numPlaneNodes;
midPlaneAvg = 0.5 * (nodalScalar(cell, node) + nodalScalar(cell, topNode));
for (int i(0); i < numDims; ++i) {
scalarGradParallel(i) +=
refGrads(node, pt, 0) * midPlaneAvg * invG_0(i) +
refGrads(node, pt, 1) * midPlaneAvg * invG_1(i);
}
}
// normal (perpendicular) contribution
for (int i(0); i < numDims; ++i) {
scalarGradPerpendicular(i) = jump(cell,pt) / thickness *invG_2(i);
}
// assign components to MDfield ScalarGrad
for (int i(0); i < numDims; ++i )
scalarGrad(cell, pt, i) = scalarGradParallel(i) + scalarGradPerpendicular(i);
}
}
}
