diff options
author | Dalai Felinto <dfelinto@gmail.com> | 2013-10-13 09:04:06 +0400 |
---|---|---|
committer | Dalai Felinto <dfelinto@gmail.com> | 2013-10-13 09:04:06 +0400 |
commit | b20d3bab8093296fde92997ae3b20e9aa4bb7bd1 (patch) | |
tree | 183aceb845c0dac5b86b4c25bfd0fe742cba918a /source/blender/bmesh/intern/bmesh_polygon.c | |
parent | b00a8122e3e5fa88e3870ca20eedbd251d245237 (diff) |
fix [#37046] Dissolve edges and vertices problem with triangulate
with review and collaboration from Campbell Barton
Diffstat (limited to 'source/blender/bmesh/intern/bmesh_polygon.c')
-rw-r--r-- | source/blender/bmesh/intern/bmesh_polygon.c | 38 |
1 files changed, 26 insertions, 12 deletions
diff --git a/source/blender/bmesh/intern/bmesh_polygon.c b/source/blender/bmesh/intern/bmesh_polygon.c index b4d3b14cd5d..e4c1180d433 100644 --- a/source/blender/bmesh/intern/bmesh_polygon.c +++ b/source/blender/bmesh/intern/bmesh_polygon.c @@ -813,6 +813,7 @@ bool BM_face_point_inside_test(BMFace *f, const float co[3]) * * \note use_tag tags new flags and edges. */ +#define SF_EDGE_IS_BOUNDARY 0xff void BM_face_triangulate(BMesh *bm, BMFace *f, BMFace **r_faces_new, MemArena *sf_arena, @@ -833,7 +834,7 @@ void BM_face_triangulate(BMesh *bm, BMFace *f, if (use_tag) { BM_elem_flag_enable(l_new->e, BM_ELEM_TAG); - BM_elem_flag_enable(f, BM_ELEM_TAG); + BM_elem_flag_enable(f_new, BM_ELEM_TAG); } if (r_faces_new) { @@ -844,6 +845,7 @@ void BM_face_triangulate(BMesh *bm, BMFace *f, /* scanfill */ ScanFillContext sf_ctx; ScanFillVert *sf_vert, *sf_vert_prev = NULL; + ScanFillEdge *sf_edge; ScanFillFace *sf_tri; int totfilltri; @@ -859,13 +861,15 @@ void BM_face_triangulate(BMesh *bm, BMFace *f, do { sf_vert = BLI_scanfill_vert_add(&sf_ctx, l_iter->v->co); - BLI_scanfill_edge_add(&sf_ctx, sf_vert_prev, sf_vert); + sf_edge = BLI_scanfill_edge_add(&sf_ctx, sf_vert_prev, sf_vert); + sf_edge->tmp.c = SF_EDGE_IS_BOUNDARY; sf_vert->tmp.p = l_iter; sf_vert_prev = sf_vert; } while ((l_iter = l_iter->next) != l_first); - BLI_scanfill_edge_add(&sf_ctx, sf_vert_prev, sf_ctx.fillvertbase.first); + sf_edge = BLI_scanfill_edge_add(&sf_ctx, sf_vert_prev, sf_ctx.fillvertbase.first); + sf_edge->tmp.c = SF_EDGE_IS_BOUNDARY; /* calculate filled triangles */ totfilltri = BLI_scanfill_calc_ex(&sf_ctx, 0, f->no); @@ -895,13 +899,27 @@ void BM_face_triangulate(BMesh *bm, BMFace *f, BM_elem_attrs_copy(bm, bm, l_tri[1], l_new->next); BM_elem_attrs_copy(bm, bm, l_tri[2], l_new->prev); - if (use_tag) { - BM_elem_flag_enable(l_new->e, BM_ELEM_TAG); + /* add all but the last face which is swapped and removed (below) */ + if (sf_tri->next) { + if (use_tag) { + BM_elem_flag_enable(f_new, BM_ELEM_TAG); + } + if (r_faces_new && sf_tri->next) { + r_faces_new[nf_i++] = f_new; + } } + } - /* add all but the last face which is swapped and removed (below) */ - if (r_faces_new && sf_tri->next) { - r_faces_new[nf_i++] = f_new; + if (use_tag) { + ScanFillEdge *sf_edge; + for (sf_edge = sf_ctx.filledgebase.first; sf_edge; sf_edge = sf_edge->next) { + if (sf_edge->tmp.c != SF_EDGE_IS_BOUNDARY) { + BMLoop *l1 = sf_edge->v1->tmp.p; + BMLoop *l2 = sf_edge->v2->tmp.p; + + BMEdge *e = BM_edge_exists(l1->v, l2->v); + BM_elem_flag_enable(e, BM_ELEM_TAG); + } } } @@ -910,10 +928,6 @@ void BM_face_triangulate(BMesh *bm, BMFace *f, * so swap data and delete the last created tri */ bmesh_face_swap_data(bm, f, f_new); BM_face_kill(bm, f_new); - - if (use_tag) { - BM_elem_flag_enable(f, BM_ELEM_TAG); - } } /* garbage collection */ |