131 lines
4.9 KiB
C++
131 lines
4.9 KiB
C++
//============================================================================
|
|
// Copyright (c) Kitware, Inc.
|
|
// All rights reserved.
|
|
// See LICENSE.txt for details.
|
|
// This software is distributed WITHOUT ANY WARRANTY; without even
|
|
// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
|
// PURPOSE. See the above copyright notice for more information.
|
|
//
|
|
// Copyright 2014 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
|
|
// Copyright 2014 UT-Battelle, LLC.
|
|
// Copyright 2014 Los Alamos National Security.
|
|
//
|
|
// Under the terms of Contract DE-NA0003525 with NTESS,
|
|
// the U.S. Government retains certain rights in this software.
|
|
//
|
|
// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
|
|
// Laboratory (LANL), the U.S. Government retains certain rights in
|
|
// this software.
|
|
//============================================================================
|
|
|
|
#include <vtkm/worklet/CrossProduct.h>
|
|
#include <vtkm/worklet/DispatcherMapField.h>
|
|
|
|
#include <random>
|
|
#include <vtkm/cont/testing/Testing.h>
|
|
|
|
namespace
|
|
{
|
|
std::mt19937 randGenerator;
|
|
|
|
template <typename T>
|
|
void createVectors(std::vector<vtkm::Vec<T, 3>>& vecs1, std::vector<vtkm::Vec<T, 3>>& vecs2)
|
|
{
|
|
// First, test the standard directions.
|
|
// X x Y
|
|
vecs1.push_back(vtkm::make_Vec(1, 0, 0));
|
|
vecs2.push_back(vtkm::make_Vec(0, 1, 0));
|
|
|
|
// Y x Z
|
|
vecs1.push_back(vtkm::make_Vec(0, 1, 0));
|
|
vecs2.push_back(vtkm::make_Vec(0, 0, 1));
|
|
|
|
// Z x X
|
|
vecs1.push_back(vtkm::make_Vec(0, 0, 1));
|
|
vecs2.push_back(vtkm::make_Vec(1, 0, 0));
|
|
|
|
// Y x X
|
|
vecs1.push_back(vtkm::make_Vec(0, 1, 0));
|
|
vecs2.push_back(vtkm::make_Vec(1, 0, 0));
|
|
|
|
// Z x Y
|
|
vecs1.push_back(vtkm::make_Vec(0, 0, 1));
|
|
vecs2.push_back(vtkm::make_Vec(0, 1, 0));
|
|
|
|
// X x Z
|
|
vecs1.push_back(vtkm::make_Vec(1, 0, 0));
|
|
vecs2.push_back(vtkm::make_Vec(0, 0, 1));
|
|
|
|
//Test some other vector combinations
|
|
std::uniform_real_distribution<vtkm::Float64> randomDist(-10.0, 10.0);
|
|
randomDist(randGenerator);
|
|
|
|
for (int i = 0; i < 100; i++)
|
|
{
|
|
vecs1.push_back(vtkm::make_Vec(
|
|
randomDist(randGenerator), randomDist(randGenerator), randomDist(randGenerator)));
|
|
vecs2.push_back(vtkm::make_Vec(
|
|
randomDist(randGenerator), randomDist(randGenerator), randomDist(randGenerator)));
|
|
}
|
|
}
|
|
|
|
template <typename T>
|
|
void TestCrossProduct()
|
|
{
|
|
std::vector<vtkm::Vec<T, 3>> inputVecs1, inputVecs2;
|
|
createVectors(inputVecs1, inputVecs2);
|
|
|
|
vtkm::cont::ArrayHandle<vtkm::Vec<T, 3>> inputArray1, inputArray2;
|
|
vtkm::cont::ArrayHandle<vtkm::Vec<T, 3>> outputArray;
|
|
inputArray1 = vtkm::cont::make_ArrayHandle(inputVecs1);
|
|
inputArray2 = vtkm::cont::make_ArrayHandle(inputVecs2);
|
|
|
|
vtkm::worklet::CrossProduct crossProductWorklet;
|
|
vtkm::worklet::DispatcherMapField<vtkm::worklet::CrossProduct> dispatcherCrossProduct(
|
|
crossProductWorklet);
|
|
dispatcherCrossProduct.Invoke(inputArray1, inputArray2, outputArray);
|
|
|
|
VTKM_TEST_ASSERT(outputArray.GetNumberOfValues() == inputArray1.GetNumberOfValues(),
|
|
"Wrong number of results for CrossProduct worklet");
|
|
|
|
//Test the cannonical cases.
|
|
VTKM_TEST_ASSERT(
|
|
test_equal(outputArray.GetPortalConstControl().Get(0), vtkm::make_Vec(0, 0, 1)) &&
|
|
test_equal(outputArray.GetPortalConstControl().Get(1), vtkm::make_Vec(1, 0, 0)) &&
|
|
test_equal(outputArray.GetPortalConstControl().Get(2), vtkm::make_Vec(0, 1, 0)) &&
|
|
test_equal(outputArray.GetPortalConstControl().Get(3), vtkm::make_Vec(0, 0, -1)) &&
|
|
test_equal(outputArray.GetPortalConstControl().Get(4), vtkm::make_Vec(-1, 0, 0)) &&
|
|
test_equal(outputArray.GetPortalConstControl().Get(5), vtkm::make_Vec(0, -1, 0)),
|
|
"Wrong result for CrossProduct worklet");
|
|
|
|
for (vtkm::Id i = 0; i < inputArray1.GetNumberOfValues(); i++)
|
|
{
|
|
vtkm::Vec<T, 3> v1 = inputArray1.GetPortalConstControl().Get(i);
|
|
vtkm::Vec<T, 3> v2 = inputArray2.GetPortalConstControl().Get(i);
|
|
vtkm::Vec<T, 3> res = outputArray.GetPortalConstControl().Get(i);
|
|
|
|
//Make sure result is orthogonal each input vector. Need to normalize to compare with zero.
|
|
vtkm::Vec<T, 3> v1N(vtkm::Normal(v1)), v2N(vtkm::Normal(v1)), resN(vtkm::Normal(res));
|
|
VTKM_TEST_ASSERT(test_equal(vtkm::dot(resN, v1N), T(0.0)), "Wrong result for cross product");
|
|
VTKM_TEST_ASSERT(test_equal(vtkm::dot(resN, v2N), T(0.0)), "Wrong result for cross product");
|
|
|
|
T sinAngle = vtkm::Magnitude(res) * vtkm::RMagnitude(v1) * vtkm::RMagnitude(v2);
|
|
T cosAngle = vtkm::dot(v1, v2) * vtkm::RMagnitude(v1) * vtkm::RMagnitude(v2);
|
|
VTKM_TEST_ASSERT(test_equal(sinAngle * sinAngle + cosAngle * cosAngle, T(1.0)),
|
|
"Bad cross product length.");
|
|
}
|
|
}
|
|
|
|
void TestCrossProductWorklets()
|
|
{
|
|
std::cout << "Testing CrossProduct Worklet" << std::endl;
|
|
TestCrossProduct<vtkm::Float32>();
|
|
TestCrossProduct<vtkm::Float64>();
|
|
}
|
|
}
|
|
|
|
int UnitTestCrossProduct(int, char* [])
|
|
{
|
|
return vtkm::cont::testing::Testing::Run(TestCrossProductWorklets);
|
|
}
|