feat(poly): added full constraint integrator function

not yet debugged

src/poly/solver/private/polySolver.cpp

@@ -20,6 +20,7 @@
 // *********************************************************************** */
 #include "mfem.hpp"
 
+#include <memory>
 #include <string>
 #include <stdexcept>
 
@@ -102,6 +103,13 @@ void PolySolver::assembleNonlinearForm() {
     auto nonlinearIntegrator = std::make_unique<polyMFEMUtils::NonlinearPowerIntegrator>(*nonlinearSourceCoeff, n);
     compositeIntegrator->add_integrator(nonlinearIntegrator.release());
 
+    // Add the contraint term \gamma(\nabla \theta(0)\cdot\nabla v(0))^{2}
+    double gamma = config.get<double>("Poly:Solver:Constraint:Gamma", 1e2);
+    auto constraintIntegrator = std::make_unique<polyMFEMUtils::BilinearIntegratorWrapper>(
+        new polyMFEMUtils::ConstraintIntegrator(gamma, &mesh)
+    );
+    compositeIntegrator->add_integrator(constraintIntegrator.release());
+
     nonlinearForm->AddDomainIntegrator(compositeIntegrator.release());
 }
 
@@ -110,7 +118,7 @@ void PolySolver::solve(){
     mfem::FunctionCoefficient initCoeff (
         [this](const mfem::Vector &x) {
             double r = x.Norml2();
-            double theta = laneEmden::thetaSerieseExpansion(r, n, 12);
+            double theta = laneEmden::thetaSerieseExpansion(r, n, 10);
             return theta;
             // double radius = Probe::getMeshRadius(mesh);
             // double u = 1/radius;