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fix for the case that one of the triangle vertices is on the plane

This commit is contained in:
Andreas Fabri 2010-02-25 11:55:20 +00:00
parent 1c4aa9fe44
commit 0758e61952
1 changed files with 21 additions and 3 deletions
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24
AABB_tree/include/CGAL/internal/AABB_Intersections_3/Triangle_3_Plane_3_intersection.h
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@ -104,7 +104,13 @@ intersection(const typename K::Plane_3 &plane,
}
else {
// s0 zero
return make_object(t0);
if(s1 == s2){
return make_object(t0);
} else {
return make_object(segment(t0,
inter_plane_triangle_3_aux<K>(t1, f1,
t2, f2)));
}
}
}
else {
@ -115,12 +121,24 @@ intersection(const typename K::Plane_3 &plane,
}
else {
// s1 zero
return make_object(t1);
if(s0 == s2){
return make_object(t1);
} else {
return make_object(segment(t1,
inter_plane_triangle_3_aux<K>(t0, f0,
t2, f2)));
}
}
}
else if( s2 == ZERO ) {
// s2 zero
return make_object(t2);
if(s0 == s1){
return make_object(t2);
} else {
return make_object(segment(t2,
inter_plane_triangle_3_aux<K>(t0, f0,
t1, f1)));
}
}
else {
// all non-zero