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adding cw and ccw circulators

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closes #2406

git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@1227 fdac6126-5c0c-442c-9429-916003d36597
This commit is contained in:
Matthias Möller
2015-02-23 16:02:40 +00:00
parent 0f9b4c2358
commit eb877fe9da
13 changed files with 1960 additions and 44 deletions
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134
src/Unittests/unittests_trimesh_circulator_vertex_vertex.cc
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@@ -283,6 +283,140 @@ TEST_F(OpenMeshTrimeshCirculatorVertexVertex, VertexVertexIterCheckInvalidationA
}
/*
* Test CW and CCW iterators
*/
TEST_F(OpenMeshTrimeshCirculatorVertexVertex, CWAndCCWCheck) {
mesh_.clear();
// Add some vertices
Mesh::VertexHandle vhandle[5];
vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
vhandle[3] = mesh_.add_vertex(Mesh::Point(0,-1, 0));
vhandle[4] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
// Add two faces
std::vector<Mesh::VertexHandle> face_vhandles;
face_vhandles.push_back(vhandle[0]);
face_vhandles.push_back(vhandle[1]);
face_vhandles.push_back(vhandle[2]);
Mesh::FaceHandle fh0 = mesh_.add_face(face_vhandles);
face_vhandles.clear();
face_vhandles.push_back(vhandle[1]);
face_vhandles.push_back(vhandle[3]);
face_vhandles.push_back(vhandle[4]);
mesh_.add_face(face_vhandles);
face_vhandles.clear();
face_vhandles.push_back(vhandle[0]);
face_vhandles.push_back(vhandle[3]);
face_vhandles.push_back(vhandle[1]);
mesh_.add_face(face_vhandles);
face_vhandles.clear();
face_vhandles.push_back(vhandle[2]);
face_vhandles.push_back(vhandle[1]);
face_vhandles.push_back(vhandle[4]);
mesh_.add_face(face_vhandles);
/* Test setup:
0 ==== 2
|\ 0 /|
| \ / |
|2 1 3|
| / \ |
|/ 1 \|
3 ==== 4 */
int indices[5] = {4, 2, 0, 3, 4};
int rev_indices[5];
std::reverse_copy(indices,indices+5,rev_indices);
//CCW
Mesh::VertexVertexCCWIter vv_ccwit = mesh_.vv_ccwbegin(vhandle[1]);
Mesh::VertexVertexCCWIter vv_ccwend = mesh_.vv_ccwend(vhandle[1]);
size_t i = 0;
for (;vv_ccwit != vv_ccwend; ++vv_ccwit, ++i)
{
EXPECT_EQ(indices[i], vv_ccwit->idx()) << "Index wrong in VertexVertexCCWIter";
}
EXPECT_FALSE(vv_ccwit.is_valid()) << "Iterator invalid in VertexVertexCCWIter at end";
EXPECT_TRUE( vv_ccwit == vv_ccwend ) << "End iterator for VertexVertexCCWIter not matching";
//constant CCW
Mesh::ConstVertexVertexCCWIter cvv_ccwit = mesh_.cvv_ccwbegin(vhandle[1]);
Mesh::ConstVertexVertexCCWIter cvv_ccwend = mesh_.cvv_ccwend(vhandle[1]);
i = 0;
for (;cvv_ccwit != cvv_ccwend; ++cvv_ccwit, ++i)
{
EXPECT_EQ(indices[i], cvv_ccwit->idx()) << "Index wrong in ConstVertexVertexCCWIter";
}
EXPECT_FALSE(cvv_ccwit.is_valid()) << "Iterator invalid in ConstVertexVertexCCWIter at end";
EXPECT_TRUE( cvv_ccwit == cvv_ccwend ) << "End iterator for ConstVertexVertexCCWIter not matching";
//CW
Mesh::VertexVertexCWIter vv_cwit = mesh_.vv_cwbegin(vhandle[1]);
Mesh::VertexVertexCWIter vv_cwend = mesh_.vv_cwend(vhandle[1]);
i = 0;
for (;vv_cwit != vv_cwend; ++vv_cwit, ++i)
{
EXPECT_EQ(rev_indices[i], vv_cwit->idx()) << "Index wrong in VertexVertexCWIter";
}
EXPECT_FALSE(vv_cwit.is_valid()) << "Iterator invalid in VertexVertexCWIter at end";
EXPECT_TRUE( vv_cwit == vv_cwend ) << "End iterator for VertexVertexCWIter not matching";
//constant CW
Mesh::ConstVertexVertexCWIter cvv_cwit = mesh_.cvv_cwbegin(vhandle[1]);
Mesh::ConstVertexVertexCWIter cvv_cwend = mesh_.cvv_cwend(vhandle[1]);
i = 0;
for (;cvv_cwit != cvv_cwend; ++cvv_cwit, ++i)
{
EXPECT_EQ(rev_indices[i], cvv_cwit->idx()) << "Index wrong in ConstVertexVertexCWIter";
}
EXPECT_FALSE(cvv_cwit.is_valid()) << "Iterator invalid in ConstVertexVertexCWIter at end";
EXPECT_TRUE( cvv_cwit == cvv_cwend ) << "End iterator for ConstVertexVertexCWIter not matching";
/*
* conversion properties:
* a) cw_begin == CWIter(ccw_begin())
* b) cw_iter->idx() == CCWIter(cw_iter)->idx() for valid iterators
* c) --cw_iter == CWIter(++ccwIter) for valid iterators
* d) cw_end == CWIter(ccw_end()) => --cw_end != CWIter(++ccw_end()) *
*/
Mesh::VertexVertexCWIter vv_cwIter = mesh_.vv_cwbegin(vhandle[1]);
// a)
EXPECT_TRUE( vv_cwIter == Mesh::VertexVertexCWIter(mesh_.vv_ccwbegin(vhandle[1])) ) << "ccw to cw convvrsion failed";
EXPECT_TRUE( Mesh::VertexVertexCCWIter(vv_cwIter) == mesh_.vv_ccwbegin(vhandle[1]) ) << "cw to ccw convvrsion failed";
// b)
EXPECT_EQ( vv_cwIter->idx(), Mesh::VertexVertexCCWIter(vv_cwIter)->idx()) << "iterators doesnt point on the same element";
// c)
++vv_cwIter;
vv_ccwend = mesh_.vv_ccwend(vhandle[1]);
--vv_ccwend;
EXPECT_EQ(vv_cwIter->idx(),vv_ccwend->idx()) << "iteratoes are not equal after inc/dec";
// additional conversion check
vv_ccwend = Mesh::VertexVertexCCWIter(vv_cwIter);
EXPECT_EQ(vv_cwIter->idx(),vv_ccwend->idx())<< "iterators doesnt point on the same element";
// d)
vv_cwIter = Mesh::VertexVertexCWIter(mesh_.vv_ccwend(vhandle[1]));
EXPECT_FALSE(vv_cwIter.is_valid()) << "end iterator is not invalid";
EXPECT_TRUE(Mesh::VertexVertexCCWIter(mesh_.vv_cwend(vhandle[1])) == mesh_.vv_ccwend(vhandle[1])) << "end iterators are not equal";
}
}