An overview of the remaining poor-quality tets
A detailed view of the remaining poor-quality tets on one of the wings.
Opening 747heat.smesh. Opening 747heat.node. Opening 747heat.b.node. Opening 747heat.b.ele. Opening 747heat.b.mtr. Constructing Delaunay tetrahedralization. Creating initial tetrahedralization. Incrementally inserting points. 48838 Flips (T23 28698, T32 18399, T22 1, T44 1740) Delaunay seconds: 0.46 Creating surface mesh. Constructing mapping from indices to points. Constructing mapping from points to tetrahedra. Unifying segments. Constructing mapping from points to subfaces. Merging coplanar facets. Perturbing vertices. Removing degenerate subfaces. 139 break points. Delaunizing segments. Marking segments have acute corners. Constructing mapping from points to segments. 3351 protect points. Constraining facets. Constructing mapping from points to tetrahedra. The biggest cavity: 14 faces, 9 vertices Enlarged 0 times Segment and facet seconds: 0.97 Removing unwanted tetrahedra. Marking holes for elimination. Marking concavities for elimination. Marking neighbors of marked tetrahedra. Deleting marked tetrahedra. Hole seconds: 0.02 Repairing degenerate tets. 0 degeneracies are removed. Steiner seconds: 0 Reconstructing mesh. Constructing mapping from indices to points. Constructing mapping from points to tetrahedra. Constructing mapping from points to subfaces. Checking Delaunay property of the mesh... Interpolating size map. Background mesh reconstruct seconds: 0.35 Adding Steiner points to enforce quality. Marking sharp subsegments. 36 sharp segments. Marking skinny subfaces. 6714 skinny subfaces. Splitting encroached subsegments. 20677 split points. Splitting encroached subfaces. 209 split points. Splitting bad tetrahedra. 273251 refinement points. Removing slivers. 5103 slivers are removed. 404 sliver(s) survived. 211 points. Totally added 294348 points. Quality seconds: 36.8 Writing 747heat.1.node. Writing 747heat.1.mtr. Writing 747heat.1.ele. Writing 747heat.1.face. Output seconds: 4.6 Total running seconds: 43.21 Statistics: Input points: 2874 Input facets: 5738 Input holes: 1 Input regions: 0 Mesh points: 300712 Mesh tetrahedra: 1783953 Mesh faces: 3611435 Mesh subfaces: 87143 Mesh subsegments: 44414 Mesh quality statistics: Smallest volume: 2.3835e-08 | Largest volume: 69815 Shortest edge: 0.0026018 | Longest edge: 112 Smallest dihedral: 0.00023076 | Largest dihedral: 179.9995 Radius-edge ratio histogram: < 0.707 : 147514 | 1.6 - 1.8 : 12793 0.707 - 1 : 1476625 | 1.8 - 2 : 6797 1 - 1.1 : 45664 | 2 - 2.5 : 5080 1.1 - 1.2 : 23162 | 2.5 - 3 : 2924 1.2 - 1.4 : 32879 | 3 - 10 : 8337 1.4 - 1.6 : 21457 | 10 - : 721 (A tetrahedron's radius-edge ratio is its radius of circumsphere divided by its shortest edge length) Aspect ratio histogram: < 1.5 : 83218 | 6 - 10 : 30025 1.5 - 2 : 741164 | 10 - 15 : 9126 2 - 2.5 : 529980 | 15 - 25 : 2408 2.5 - 3 : 181989 | 25 - 50 : 453 3 - 4 : 134125 | 50 - 100 : 72 4 - 6 : 71349 | 100 - : 44 (A tetrahedron's aspect ratio is its longest edge length divided by its smallest side height) Dihedral angle histogram: 0 - 5 degrees: 664 | 90 - 100 degrees: 477246 5 - 10 degrees: 15697 | 100 - 110 degrees: 347076 10 - 30 degrees: 209254 | 110 - 120 degrees: 223637 30 - 40 degrees: 302183 | 120 - 130 degrees: 138368 40 - 50 degrees: 593537 | 130 - 140 degrees: 86107 50 - 60 degrees: 555118 | 140 - 150 degrees: 55103 60 - 70 degrees: 107489 | 150 - 170 degrees: 52319 70 - 80 degrees: 43547 | 170 - 175 degrees: 1971 80 - 90 degrees: 358554 | 175 - 180 degrees: 36 si@david-04: ~/tetgen-dbg/747 > ../qualchk -rV 747heat.1 Opening 747heat.1.node. Opening 747heat.1.ele. Opening 747heat.1.face. Opening 747heat.1.edge. Opening 747heat.1.mtr. Reconstructing mesh. Constructing mapping from indices to points. Constructing mapping from points to tetrahedra. Constructing mapping from points to subfaces. Writing 747heat.2.lua. Radiu-edge ratio bound: 2. Upper dihedral angle bound: 175 (degree). 17062 bad-qual tets. 36 slivers. Checking interior mesh conformity. Constructing mapping from points to tetrahedra. Writing 747heat.2.txt. Mesh conformity statistics: Longest edge length to node size ratio histogram: < 0.25 : 0 | 1 - 1.41421 : 14528 0.25 - 0.353553 : 0 | 1.41421 - 2 : 27840 0.353553 - 0.5 : 97 | 2 - 2.82843 : 252009 0.5 - 0.707107 : 638 | 2.82843 - 4 : 27 0.707107 - 1 : 5573 | 0 - : 0 Smallest edge length to node size ratio histogram: < 0.25 : 10861 | 1 - 1.41421 : 118632 0.25 - 0.353553 : 5961 | 1.41421 - 2 : 134265 0.353553 - 0.5 : 8696 | 2 - 2.82843 : 0 0.5 - 0.707107 : 6452 | 2.82843 - 4 : 0 0.707107 - 1 : 15845 | 0 - : 0 Average edge length to node size ratio histogram: < 0.25 : 8 | 1 - 1.41421 : 16635 0.25 - 0.353553 : 155 | 1.41421 - 2 : 239819 0.353553 - 0.5 : 2028 | 2 - 2.82843 : 18746 0.5 - 0.707107 : 10023 | 2.82843 - 4 : 0 0.707107 - 1 : 13298 | 0 - : 0