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Merge pull request #21202 from hpvb/fix-16560 

Remove faces in in QuickHull::build() that we don't need anymore
This commit is contained in:
Rémi Verschelde 2018-08-20 09:21:00 +02:00 committed by GitHub
parent 15433cffe7 33669a8bca
commit acf67a1a19
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 9 additions and 2 deletions
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11
core/math/quick_hull.cpp
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@ -397,7 +397,6 @@ Error QuickHull::build(const Vector<Vector3> &p_points, Geometry::MeshData &r_me
Map<Edge, RetFaceConnect>::Element *F = ret_edges.find(e);
ERR_CONTINUE(!F);
List<Geometry::MeshData::Face>::Element *O = F->get().left == E ? F->get().right : F->get().left;
ERR_CONTINUE(O == E);
ERR_CONTINUE(O == NULL);
@ -426,7 +425,6 @@ Error QuickHull::build(const Vector<Vector3> &p_points, Geometry::MeshData &r_me
Edge e2(idx, idxn);
Map<Edge, RetFaceConnect>::Element *F2 = ret_edges.find(e2);
ERR_CONTINUE(!F2);
//change faceconnect, point to this face instead
if (F2->get().left == O)
@ -439,6 +437,15 @@ Error QuickHull::build(const Vector<Vector3> &p_points, Geometry::MeshData &r_me
}
}
// remove all edge connections to this face
for (Map<Edge, RetFaceConnect>::Element *E = ret_edges.front(); E; E = E->next()) {
if (E->get().left == O)
E->get().left = NULL;
if (E->get().right == O)
E->get().right = NULL;
}
ret_edges.erase(F); //remove the edge
ret_faces.erase(O); //remove the face
}