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fix Booleen operations with full/empty space

This commit is contained in:
Sébastien Loriot 2017-06-07 09:36:09 +02:00
parent 5348feb7f3
commit 1ca852bb87
2 changed files with 17 additions and 0 deletions
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1
Nef_3/examples/Nef_3/nef_3_simple.cpp
View File

@ -10,5 +10,6 @@ int main() {
Nef_polyhedron N1(Nef_polyhedron::COMPLETE);
CGAL_assertion (N0 == N1.complement());
CGAL_assertion (N0 != N1);
return 0;
}

16
Nef_3/include/CGAL/Nef_polyhedron_3.h
View File

@ -1372,6 +1372,10 @@ protected:
intersection(const Nef_polyhedron_3<Kernel,Items, Mark>& N1) const
/*{\Mop returns |\Mvar| $\cap$ |N1|. }*/ {
CGAL_NEF_TRACEN(" intersection between nef3 "<<&*this<<" and "<<&N1);
if (is_empty()) return *this;
if (N1.is_empty()) return N1;
if (is_space()) return N1;
if (N1.is_space()) return *this;
AND _and;
SNC_structure rsnc;
Nef_polyhedron_3<Kernel,Items, Mark> res(rsnc, new SNC_point_locator_default, false);
@ -1396,6 +1400,10 @@ protected:
join(const Nef_polyhedron_3<Kernel,Items, Mark>& N1) const
/*{\Mop returns |\Mvar| $\cup$ |N1|. }*/ {
CGAL_NEF_TRACEN(" join between nef3 "<<&*this<<" and "<<&N1);
if (is_empty()) return N1;
if (N1.is_empty()) return *this;
if (is_space()) return *this;
if (N1.is_space()) return N1;
OR _or;
//CGAL::binop_intersection_tests_allpairs<SNC_decorator, OR> tests_impl;
SNC_structure rsnc;
@ -1409,6 +1417,10 @@ protected:
difference(const Nef_polyhedron_3<Kernel,Items, Mark>& N1) const
/*{\Mop returns |\Mvar| $-$ |N1|. }*/ {
CGAL_NEF_TRACEN(" difference between nef3 "<<&*this<<" and "<<&N1);
if (is_empty()) return *this;
if (N1.is_empty()) return *this;
if (is_space()) return N1.complement();
if (N1.is_space()) return Nef_polyhedron_3(EMPTY);
DIFF _diff;
//CGAL::binop_intersection_tests_allpairs<SNC_decorator, DIFF> tests_impl;
SNC_structure rsnc;
@ -1423,6 +1435,10 @@ protected:
/*{\Mop returns the symmectric difference |\Mvar - T| $\cup$
|T - \Mvar|. }*/ {
CGAL_NEF_TRACEN(" symmetic difference between nef3 "<<&*this<<" and "<<&N1);
if (is_empty()) return N1;
if (N1.is_empty()) return *this;
if (is_space()) return Nef_polyhedron_3(EMPTY);
if (N1.is_space()) return Nef_polyhedron_3(EMPTY);
XOR _xor;
//CGAL::binop_intersection_tests_allpairs<SNC_decorator, XOR> tests_impl;
SNC_structure rsnc;