From e08ed7b03212d89c8b8b7f0f7d47569e4b9509e2 Mon Sep 17 00:00:00 2001
From: Oliver Sander <sander@igpm.rwth-aachen.de>
Date: Thu, 14 Oct 2010 12:00:06 +0000
Subject: [PATCH] Make the space to be tested a parameter. Unlike originally
envisioned this test should not just test the UnitVector class
[[Imported from SVN: r6422]]
---
test/unitvectortest.cc | 63 +++++++++++++++++++++---------------------
1 file changed, 32 insertions(+), 31 deletions(-)
diff --git a/test/unitvectortest.cc b/test/unitvectortest.cc
index 66c071eb..543adfa3 100644
--- a/test/unitvectortest.cc
+++ b/test/unitvectortest.cc
@@ -1,6 +1,7 @@
#include <config.h>
#include <dune/gfe/unitvector.hh>
+#include <dune/gfe/realtuple.hh>
#include <dune/gfe/rotation.hh>
/** \file
@@ -9,28 +10,28 @@
using namespace Dune;
-const double eps = 1e-6;
+const double eps = 1e-5;
-template <int dim>
-double energy(const UnitVector<dim>& a, const UnitVector<dim>& b)
+template <class TargetSpace>
+double energy(const TargetSpace& a, const TargetSpace& b)
{
- return UnitVector<dim>::distance(a,b) * UnitVector<dim>::distance(a,b);
+ return TargetSpace::distance(a,b) * TargetSpace::distance(a,b);
}
-template <int dim>
-double energy(const UnitVector<dim>& a, const FieldVector<double,dim>& b)
+template <class TargetSpace, int dim>
+double energy(const TargetSpace& a, const FieldVector<double,dim>& b)
{
- return UnitVector<dim>::distance(a,b) * UnitVector<dim>::distance(a,b);
+ return TargetSpace::distance(a,b) * TargetSpace::distance(a,b);
}
-template <int dim>
+template <class TargetSpace, int dim>
double energy(const FieldVector<double,dim>& a, const FieldVector<double,dim>& b)
{
- return UnitVector<dim>::distance(a,b) * UnitVector<dim>::distance(a,b);
+ return TargetSpace::distance(a,b) * TargetSpace::distance(a,b);
}
-template <int dim>
-FieldMatrix<double,dim,dim> getSecondDerivativeOfSecondArgumentFD(const UnitVector<dim>& a, const UnitVector<dim>& b)
+template <class TargetSpace, int dim>
+FieldMatrix<double,dim,dim> getSecondDerivativeOfSecondArgumentFD(const TargetSpace& a, const TargetSpace& b)
{
// finite-difference approximation
FieldMatrix<double,dim,dim> d2d2_fd;
@@ -67,17 +68,17 @@ FieldMatrix<double,dim,dim> getSecondDerivativeOfSecondArgumentFD(const UnitVect
return d2d2_fd;
}
-template <int dim>
-void testDerivativesOfSquaredDistance(const UnitVector<dim>& a, const UnitVector<dim>& b)
+template <class TargetSpace, int dim>
+void testDerivativesOfSquaredDistance(const TargetSpace& a, const TargetSpace& b)
{
///////////////////////////////////////////////////////////////////
// Test derivative with respect to second argument
///////////////////////////////////////////////////////////////////
- typename UnitVector<dim>::EmbeddedTangentVector d2 = UnitVector<dim>::derivativeOfDistanceSquaredWRTSecondArgument(a, b);
+ typename TargetSpace::EmbeddedTangentVector d2 = TargetSpace::derivativeOfDistanceSquaredWRTSecondArgument(a, b);
// finite-difference approximation
- typename UnitVector<dim>::EmbeddedTangentVector d2_fd;
+ typename TargetSpace::EmbeddedTangentVector d2_fd;
for (size_t i=0; i<dim; i++) {
FieldVector<double,dim> bPlus = b.globalCoordinates();
FieldVector<double,dim> bMinus = b.globalCoordinates();
@@ -95,10 +96,10 @@ void testDerivativesOfSquaredDistance(const UnitVector<dim>& a, const UnitVector
///////////////////////////////////////////////////////////////////
// Test second derivative with respect to second argument
///////////////////////////////////////////////////////////////////
- FieldMatrix<double,dim,dim> d2d2 = UnitVector<dim>::secondDerivativeOfDistanceSquaredWRTSecondArgument(a, b);
+ FieldMatrix<double,dim,dim> d2d2 = TargetSpace::secondDerivativeOfDistanceSquaredWRTSecondArgument(a, b);
// finite-difference approximation
- FieldMatrix<double,dim,dim> d2d2_fd = getSecondDerivativeOfSecondArgumentFD(a,b);
+ FieldMatrix<double,dim,dim> d2d2_fd = getSecondDerivativeOfSecondArgumentFD<TargetSpace,dim>(a,b);
FieldMatrix<double,dim,dim> d2d2_diff = d2d2;
d2d2_diff -= d2d2_fd;
@@ -111,8 +112,8 @@ void testDerivativesOfSquaredDistance(const UnitVector<dim>& a, const UnitVector
//////////////////////////////////////////////////////////////////////////////
// Test mixed second derivative with respect to first and second argument
//////////////////////////////////////////////////////////////////////////////
-
- FieldMatrix<double,dim,dim> d1d2 = UnitVector<dim>::secondDerivativeOfDistanceSquaredWRTFirstAndSecondArgument(a, b);
+#if 0
+ FieldMatrix<double,dim,dim> d1d2 = TargetSpace::secondDerivativeOfDistanceSquaredWRTFirstAndSecondArgument(a, b);
// finite-difference approximation
FieldMatrix<double,dim,dim> d1d2_fd;
@@ -149,7 +150,7 @@ void testDerivativesOfSquaredDistance(const UnitVector<dim>& a, const UnitVector
// Test mixed third derivative with respect to first (once) and second (twice) argument
/////////////////////////////////////////////////////////////////////////////////////////////
- Tensor3<double,dim,dim,dim> d1d2d2 = UnitVector<dim>::thirdDerivativeOfDistanceSquaredWRTFirst1AndSecond2Argument(a, b);
+ Tensor3<double,dim,dim,dim> d1d2d2 = TargetSpace::thirdDerivativeOfDistanceSquaredWRTFirst1AndSecond2Argument(a, b);
Tensor3<double,dim,dim,dim> d1d2d2_fd;
@@ -160,8 +161,8 @@ void testDerivativesOfSquaredDistance(const UnitVector<dim>& a, const UnitVector
aPlus[i] += eps;
aMinus[i] -= eps;
- FieldMatrix<double,dim,dim> hPlus = getSecondDerivativeOfSecondArgumentFD(UnitVector<dim>(aPlus),b);
- FieldMatrix<double,dim,dim> hMinus = getSecondDerivativeOfSecondArgumentFD(UnitVector<dim>(aMinus),b);
+ FieldMatrix<double,dim,dim> hPlus = getSecondDerivativeOfSecondArgumentFD(TargetSpace(aPlus),b);
+ FieldMatrix<double,dim,dim> hMinus = getSecondDerivativeOfSecondArgumentFD(TargetSpace(aMinus),b);
d1d2d2_fd[i] = hPlus;
d1d2d2_fd[i] -= hMinus;
@@ -174,23 +175,23 @@ void testDerivativesOfSquaredDistance(const UnitVector<dim>& a, const UnitVector
std::cout << "d1d2d2 Analytical:" << std::endl << d1d2d2 << std::endl;
std::cout << "d1d2d2 FD :" << std::endl << d1d2d2_fd << std::endl;
}
-
+#endif
}
int main()
{
// Set up elements of S^1
- Dune::array<double,2> w0 = {{0,1}};
+ Dune::array<double,2> w0 = {{1,0}};
UnitVector<2> uv0(w0);
- Dune::array<double,2> w1 = {{1,1}};
+ Dune::array<double,2> w1 = {{0,1}};
UnitVector<2> uv1(w1);
- testDerivativesOfSquaredDistance<2>(uv0, uv1);
+ testDerivativesOfSquaredDistance<UnitVector<2>, 2>(uv0, uv1);
- Dune::array<double,3> w3_0 = {{0,1,0}};
- UnitVector<3> v3_0(w3_0);
- Dune::array<double,3> w3_1 = {{1,1,0}};
- UnitVector<3> v3_1(w3_1);
- testDerivativesOfSquaredDistance<3>(v3_0, v3_1);
+// Dune::array<double,3> w3_0 = {{0,1,0}};
+// UnitVector<3> v3_0(w3_0);
+// Dune::array<double,3> w3_1 = {{1,1,0}};
+// UnitVector<3> v3_1(w3_1);
+// testDerivativesOfSquaredDistance<3>(v3_0, v3_1);
#if 0
// Set up elements of S^1
--
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