Commit 2e6ad2aa authored by Sreekanth Arikatla's avatar Sreekanth Arikatla Committed by Andrew Wilson
Browse files

TEST: Add tetra to line mesh tests

parent 76732af6
/*=========================================================================
Library: iMSTK
Copyright (c) Kitware, Inc. & Center for Modeling, Simulation,
& Imaging in Medicine, Rensselaer Polytechnic Institute.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0.txt
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
=========================================================================*/
#include "gtest/gtest.h"
#include "imstkLineMesh.h"
#include "imstkTetrahedralMesh.h"
#include "imstkTetraToLineMeshCD.h"
using namespace imstk;
std::shared_ptr<TetrahedralMesh>
makeUnitTetrahedron()
{
// Create tetrahedron
auto verticesPtr = std::make_shared<VecDataArray<double, 3>>(4);
auto indicesPtr = std::make_shared<VecDataArray<int, 4>>(1);
(*verticesPtr)[0] = Vec3d(0.0, 0.0, 0.0);
(*verticesPtr)[1] = Vec3d(1.0, 0.0, 0.0);
(*verticesPtr)[2] = Vec3d(0.0, 1.0, 0.0);
(*verticesPtr)[3] = Vec3d(0.0, 0.0, 1.0);
(*indicesPtr)[0] = Vec4i(0, 1, 2, 3);
auto tetMesh = std::make_shared<TetrahedralMesh>();
tetMesh->initialize(verticesPtr, indicesPtr);
return tetMesh;
}
std::shared_ptr<LineMesh>
makeOneSegmentLineMesh(const Vec3d& a, const Vec3d& b)
{
auto lineMesh = std::make_shared<LineMesh>();
auto verxPtr = std::make_shared<VecDataArray<double, 3>>(2);
auto indicesPtr = std::make_shared<VecDataArray<int, 2>>(1);
(*verxPtr)[0] = a;
(*verxPtr)[1] = b;
(*indicesPtr)[0] = Vec2i(0, 1);
lineMesh->initialize(verxPtr, indicesPtr);
return lineMesh;
}
TEST(imstkTetraToLineMeshCDTest, IntersectionTestAB_enclosed)
{
// Create tetrahedron
auto tetMesh = makeUnitTetrahedron();
// Create enclosed line mesh
auto lineMesh = makeOneSegmentLineMesh(Vec3d(0.05, 0.05, 0.05), Vec3d(0.07, 0.07, 0.07));
// create collision
TetraToLineMeshCD m_tetraToLineMeshCD;
m_tetraToLineMeshCD.setInput(lineMesh, 0);
m_tetraToLineMeshCD.setInput(tetMesh, 1);
m_tetraToLineMeshCD.setGenerateCD(true, true); // Generate both A and B
m_tetraToLineMeshCD.update();
std::shared_ptr<CollisionData> colData = m_tetraToLineMeshCD.getCollisionData();
// Should be one element on side A, 1 on side B
EXPECT_EQ(1, colData->elementsA.getSize());
EXPECT_EQ(1, colData->elementsB.getSize());
// That element should be a point directional element
EXPECT_EQ(CollisionElementType::CellIndex, colData->elementsA[0].m_type);
EXPECT_EQ(CollisionElementType::CellIndex, colData->elementsB[0].m_type);
// Check cell types
EXPECT_EQ(IMSTK_EDGE, colData->elementsA[0].m_element.m_CellIndexElement.cellType);
EXPECT_EQ(IMSTK_TETRAHEDRON, colData->elementsB[0].m_element.m_CellIndexElement.cellType);
// Check cell types
EXPECT_EQ(0, colData->elementsA[0].m_element.m_CellIndexElement.ids[0]);
EXPECT_EQ(0, colData->elementsB[0].m_element.m_CellIndexElement.ids[0]);
}
TEST(imstkTetraToLineMeshCDTest, IntersectionTestAB_intersecting)
{
// Create tetrahedron
auto tetMesh = makeUnitTetrahedron();
// Create intersecting line mesh
auto lineMesh = makeOneSegmentLineMesh(Vec3d(-1.0, -1.0, -1.0), Vec3d(1.0, 1.0, 1.0));
// create collision
TetraToLineMeshCD m_tetraToLineMeshCD;
m_tetraToLineMeshCD.setInput(lineMesh, 0);
m_tetraToLineMeshCD.setInput(tetMesh, 1);
m_tetraToLineMeshCD.setGenerateCD(true, true); // Generate both A and B
m_tetraToLineMeshCD.update();
std::shared_ptr<CollisionData> colData = m_tetraToLineMeshCD.getCollisionData();
// Should be one element on side A, 1 on side B
EXPECT_EQ(1, colData->elementsA.getSize());
EXPECT_EQ(1, colData->elementsB.getSize());
// That element should be a point directional element
EXPECT_EQ(CollisionElementType::CellIndex, colData->elementsA[0].m_type);
EXPECT_EQ(CollisionElementType::CellIndex, colData->elementsB[0].m_type);
// Check cell types
EXPECT_EQ(IMSTK_EDGE, colData->elementsA[0].m_element.m_CellIndexElement.cellType);
EXPECT_EQ(IMSTK_TETRAHEDRON, colData->elementsB[0].m_element.m_CellIndexElement.cellType);
// Check cell types
EXPECT_EQ(0, colData->elementsA[0].m_element.m_CellIndexElement.ids[0]);
EXPECT_EQ(0, colData->elementsB[0].m_element.m_CellIndexElement.ids[0]);
}
TEST(imstkTetraToLineMeshCDTest, NonIntersectionTestAB)
{
// Create unit tetrahedron
auto tetMesh = makeUnitTetrahedron();
// Create non-intersecting line mesh
auto lineMesh = makeOneSegmentLineMesh(Vec3d(1.0, 1.0, 1.0), Vec3d(2.0, 2.0, 2.0));
// create collision
TetraToLineMeshCD m_tetraToLineMeshCD;
m_tetraToLineMeshCD.setInput(lineMesh, 0);
m_tetraToLineMeshCD.setInput(tetMesh, 1);
m_tetraToLineMeshCD.setGenerateCD(true, true); // Generate both A and B
m_tetraToLineMeshCD.update();
std::shared_ptr<CollisionData> colData = m_tetraToLineMeshCD.getCollisionData();
// Should have no elements
EXPECT_EQ(0, colData->elementsA.getSize());
EXPECT_EQ(0, colData->elementsB.getSize());
}
int
imstkTetraToLineMeshCDTest(int argc, char* argv[])
{
// Init Google Test & Mock
::testing::InitGoogleTest(&argc, argv);
// Run tests with gtest
return RUN_ALL_TESTS();
}
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