CGAL users discussion list

[Benoît Presles <>]

Hello everybody,

I compute the alpha shape (general mode) with alpha=0.111042939486815 of 
the following 5 points:
0.790880293797096       0.313575592400366
0.903452349266412       0.970194553605220
0.519092678031009       0.236693624191607
0.392561838340948       0.739773369058428
0.995335700744040       0.349753091900525

Here is the segments I get (cf. "PointsImage.jpg"):
0.9035    0.9702    0.7909    0.3136
0.7909    0.3136    0.9953    0.3498
0.5191    0.2367    0.7909    0.3136
0.3926    0.7398    0.5191    0.2367
0.9035    0.9702    0.3926    0.7398
0.7909    0.3136    0.3926    0.7398
0.9953    0.3498    0.9035    0.9702

With such a value of alpha I don't understand why I get the segments 
0.7909    0.3136    0.3926    0.7398
and
0.9035    0.9702    0.7909    0.3136


Thank you very much for your help,
Best Regards,
Ben_P

Attachment: PointsImage.jpg
Description: JPEG image