icorporate scaled direction from DirectionalRestriction

dune/tectonic/spatial-solving/tnnmg/linesearchsolver.hh

@@ -16,25 +16,37 @@ class LineSearchSolver
 public:
   template<class Vector, class Functional, class BitVector>
   void operator()(Vector& x, const Functional& f, const BitVector& ignore) const {
-    x = 0;
+    x = 1.0;
 
     if (ignore)
         return;
 
-    /*Dune::Solvers::Interval<double> D;
+    Dune::Solvers::Interval<double> D;
     D = f.subDifferential(0);
+
+    std::cout << "f.A " << f.quadraticPart() << " f.b " << f.linearPart() << std::endl;
+
+    std::cout << D[0] << " " << D[1] << std::endl;
+    std::cout << "domain: " << f.domain()[0] << " " << f.domain()[1] << std::endl;
+
+
     if (D[1] > 0) // NOTE: Numerical instability can actually get us here
         return;
-*/
+
+
     if (almost_equal(f.domain()[0], f.domain()[1], 2)) {
         x = f.domain()[0];
+        std::cout << "no interval: " << x << std::endl;
         return;
     }
 
     int bisectionsteps = 0;
-    const Bisection globalBisection(0.0, 1.0, 0.0, 0.0);;
+    const Bisection globalBisection; //(0.0, 1.0, 0.0, 0.0);
 
-    x = globalBisection.minimize(f, 0.0, 0.0, bisectionsteps);
+    x = globalBisection.minimize(f, f.scaling(), 0.0, bisectionsteps);
+    std::cout << "x: " << x << "scaling: " << f.scaling();
+    x /= f.scaling();
+    std::cout << "final x: "  << x << std::endl;
     //x = f.domain().projectIn(x);
   }
 };