`-V' gives information on algorithmic progress and more
detailed statistics. Here's an example of the statistics provided:
Statistics:
Input vertices: 518
Input segments: 518
Input holes: 6
Mesh vertices: 811
Mesh triangles: 1110
Mesh edges: 1926
Mesh exterior boundary edges: 522
Mesh interior boundary edges: 0
Mesh subsegments (constrained edges): 522
Mesh quality statistics:
Smallest area: 2.4708e-06 | Largest area: 0.002675
Shortest edge: 0.0018129 | Longest edge: 0.10057
Shortest altitude: 0.0011442 | Largest aspect ratio: 4.6264
Triangle aspect ratio histogram:
1.1547 - 1.5 : 158 | 15 - 25 : 0
1.5 - 2 : 366 | 25 - 50 : 0
2 - 2.5 : 259 | 50 - 100 : 0
2.5 - 3 : 178 | 100 - 300 : 0
3 - 4 : 142 | 300 - 1000 : 0
4 - 6 : 7 | 1000 - 10000 : 0
6 - 10 : 0 | 10000 - 100000 : 0
10 - 15 : 0 | 100000 - : 0
(Aspect ratio is longest edge divided by shortest altitude)
Smallest angle: 15.024 | Largest angle: 133.2
Angle histogram:
0 - 10 degrees: 0 | 90 - 100 degrees: 150
10 - 20 degrees: 1 | 100 - 110 degrees: 151
20 - 30 degrees: 379 | 110 - 120 degrees: 68
30 - 40 degrees: 466 | 120 - 130 degrees: 20
40 - 50 degrees: 439 | 130 - 140 degrees: 3
50 - 60 degrees: 441 | 140 - 150 degrees: 0
60 - 70 degrees: 367 | 150 - 160 degrees: 0
70 - 80 degrees: 650 | 160 - 170 degrees: 0
80 - 90 degrees: 195 | 170 - 180 degrees: 0
Memory allocation statistics:
Maximum number of vertices: 811
Maximum number of triangles: 1110
Maximum number of subsegments: 522
Maximum number of encroached subsegments: 1
Maximum number of bad triangles: 531
Maximum number of stacked triangle flips: 4
Approximate heap memory use (bytes): 95440
Algorithmic statistics:
Number of incircle tests: 7362
Number of 2D orientation tests: 15346
Number of triangle circumcenter computations: 292
These are described on the Statistics page.