Pixyco-XYZ/openmesh
5
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

adding cw and ccw circulators

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

140
src/Unittests/unittests_trimesh_circulator_halfedge_loop.cc
View File

@@ -226,4 +226,144 @@ TEST_F(OpenMeshTrimeshCirculatorHalfedgeLoop, HalfedgeLoopWithoutFace) {
}
/*
* Test CW and CCW iterators
*/
TEST_F(OpenMeshTrimeshCirculatorHalfedgeLoop, CWAndCCWCheck) {
mesh_.clear();
// Add some vertices
Mesh::VertexHandle vhandle[6];
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(3, 0, 0));
vhandle[4] = mesh_.add_vertex(Mesh::Point(4, 1, 0));
vhandle[5] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
// Add three 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_.add_face(face_vhandles);
face_vhandles.clear();
face_vhandles.push_back(vhandle[2]);
face_vhandles.push_back(vhandle[1]);
face_vhandles.push_back(vhandle[3]);
mesh_.add_face(face_vhandles);
face_vhandles.clear();
face_vhandles.push_back(vhandle[2]);
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[1]);
face_vhandles.push_back(vhandle[5]);
face_vhandles.push_back(vhandle[3]);
mesh_.add_face(face_vhandles);
/* Test setup:
*
* 0 ------ 2 ------ 4
* \ / \ /
* \ 0 / \ 2 /
* \ / 1 \ /
* 1 ------- 3
* \ /
* \ 3 /
* \ /
* \ /
* 5
*/
int indices[4] = {3, 8, 6, 3};
int rev_indices[4];
std::reverse_copy(indices,indices+4,rev_indices);
//CCW
Mesh::HalfedgeLoopCCWIter hl_ccwit = mesh_.hl_ccwbegin(mesh_.halfedge_handle(3));
Mesh::HalfedgeLoopCCWIter hl_ccwend = mesh_.hl_ccwend(mesh_.halfedge_handle(3));
size_t i = 0;
for (;hl_ccwit != hl_ccwend; ++hl_ccwit, ++i)
{
EXPECT_EQ(indices[i], hl_ccwit->idx()) << "Index wrong in HalfedgeLoopCCWIter";
}
EXPECT_FALSE(hl_ccwit.is_valid()) << "Iterator invalid in HalfedgeLoopCCWIter at end";
EXPECT_TRUE( hl_ccwit == hl_ccwend ) << "End iterator for HalfedgeLoopCCWIter not matching";
//constant CCW
Mesh::ConstHalfedgeLoopCCWIter chl_ccwit = mesh_.chl_ccwbegin(mesh_.halfedge_handle(3));
Mesh::ConstHalfedgeLoopCCWIter chl_ccwend = mesh_.chl_ccwend(mesh_.halfedge_handle(3));
i = 0;
for (;chl_ccwit != chl_ccwend; ++chl_ccwit, ++i)
{
EXPECT_EQ(indices[i], chl_ccwit->idx()) << "Index wrong in ConstHalfedgeLoopCCWIter";
}
EXPECT_FALSE(chl_ccwit.is_valid()) << "Iterator invalid in ConstHalfedgeLoopCCWIter at end";
EXPECT_TRUE( chl_ccwit == chl_ccwend ) << "End iterator for ConstHalfedgeLoopCCWIter not matching";
//CW
Mesh::HalfedgeLoopCWIter hl_cwit = mesh_.hl_cwbegin(mesh_.halfedge_handle(3));
Mesh::HalfedgeLoopCWIter hl_cwend = mesh_.hl_cwend(mesh_.halfedge_handle(3));
i = 0;
for (;hl_cwit != hl_cwend; ++hl_cwit, ++i)
{
EXPECT_EQ(rev_indices[i], hl_cwit->idx()) << "Index wrong in HalfedgeLoopCWIter";
}
EXPECT_FALSE(hl_cwit.is_valid()) << "Iterator invalid in HalfedgeLoopCWIter at end";
EXPECT_TRUE( hl_cwit == hl_cwend ) << "End iterator for HalfedgeLoopCWIter not matching";
//constant CW
Mesh::ConstHalfedgeLoopCWIter chl_cwit = mesh_.chl_cwbegin(mesh_.halfedge_handle(3));
Mesh::ConstHalfedgeLoopCWIter chl_cwend = mesh_.chl_cwend(mesh_.halfedge_handle(3));
i = 0;
for (;chl_cwit != chl_cwend; ++chl_cwit, ++i)
{
EXPECT_EQ(rev_indices[i], chl_cwit->idx()) << "Index wrong in ConstHalfedgeLoopCWIter";
}
EXPECT_FALSE(chl_cwit.is_valid()) << "Iterator invalid in ConstHalfedgeLoopCWIter at end";
EXPECT_TRUE( chl_cwit == chl_cwend ) << "End iterator for ConstHalfedgeLoopCWIter 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::HalfedgeLoopCWIter hl_cwIter = mesh_.hl_cwbegin(mesh_.halfedge_handle(3));
// a)
EXPECT_TRUE( hl_cwIter == Mesh::HalfedgeLoopCWIter(mesh_.hl_ccwbegin(mesh_.halfedge_handle(3))) ) << "ccw to cw conversion failed";
EXPECT_TRUE( Mesh::HalfedgeLoopCCWIter(hl_cwIter) == mesh_.hl_ccwbegin(mesh_.halfedge_handle(3)) ) << "cw to ccw conversion failed";
// b)
EXPECT_EQ( hl_cwIter->idx(), Mesh::HalfedgeLoopCCWIter(hl_cwIter)->idx()) << "iterators doesnt point on the same element";
// c)
++hl_cwIter;
hl_ccwend = mesh_.hl_ccwend(mesh_.halfedge_handle(3));
--hl_ccwend;
EXPECT_EQ(hl_cwIter->idx(),hl_ccwend->idx()) << "iteratoes are not equal after inc/dec";
// additional conversion check
hl_ccwend = Mesh::HalfedgeLoopCCWIter(hl_cwIter);
EXPECT_EQ(hl_cwIter->idx(),hl_ccwend->idx())<< "iterators doesnt point on the same element";
// d)
hl_cwIter = Mesh::HalfedgeLoopCWIter(mesh_.hl_ccwend(mesh_.halfedge_handle(3)));
EXPECT_FALSE(hl_cwIter.is_valid()) << "end iterator is not invalid";
EXPECT_TRUE(Mesh::HalfedgeLoopCCWIter(mesh_.hl_cwend(mesh_.halfedge_handle(3))) == mesh_.hl_ccwend(mesh_.halfedge_handle(3))) << "end iterators are not equal";
}
}