A C++ implementation of the Fortune's algorithm for Voronoi diagram construction
Home Page: https://pvigier.github.io/2018/11/18/fortune-algorithm-details.html
License: GNU Lesser General Public License v3.0
Hello Pierre,
Regarding the algorithm in general - great work, thank you!
However, I have observed some problems during its evaluation in case of 10 points or less.
In such cases application either produces artifacts (see screenshots below) or finishes execution immediately.
As for performance of the algorithm, it looks quite fast.
Do you plan to add some new functionality, e.g. creation of dual graph using computed diagram?
I would like to advice you to compare it against CGAL library.
Unfortunately, I have not checked it yet by myself, so I have no results to share with you.
Best regards.
Hi.
I'm constantly getting an sig segv on my set of point coordinates.
I hope this info can be useful to fix:
FortuneAlgorithm f_alg(my_points);
f_alg.construct();
f_alg.bound(Box{-0.05, -0.05, 1.05, 1.05});
VoronoiDiagram dia = f_alg.getDiagram();
dia.intersect(Box{0.0, 0.0, 1.0, 1.0});
Number of points: 77
It looks like something going wrong with on FortuneAlgorithm constructor. Because I see some wrong lines...
The window of sf::RenderWindow without intersect():
Points list:
POINT: x = 0.969796 y = 0.10606
POINT: x = 0.416667 y = 0.141313
POINT: x = 0.802083 y = 0.141313
POINT: x = 0.270833 y = 0.178243
POINT: x = 0.65625 y = 0.178243
POINT: x = 0.885262 y = 0.188622
POINT: x = 0.4875 y = 0.188622
POINT: x = 0.0736904 y = 0.188622
POINT: x = 0.34375 y = 0.22322
POINT: x = 0.729167 y = 0.22322
POINT: x = 0.864583 y = 0.800998
POINT: x = 0.475 y = 0.800998
POINT: x = 0.0531662 y = 0.800998
POINT: x = 0.40625 y = 0.832136
POINT: x = 0.791667 y = 0.832136
POINT: x = 0.374547 y = 0.101487
POINT: x = 0.614583 y = 0.114762
POINT: x = 0.208333 y = 0.114762
POINT: x = 0.59375 y = 0.209381
POINT: x = 0.5 y = 0.237059
POINT: x = 0.625 y = 0.250898
POINT: x = 0.770833 y = 0.264737
POINT: x = 0.905786 y = 0.278576
POINT: x = 0.0942141 y = 0.278576
POINT: x = 0.239583 y = 0.292415
POINT: x = 0.385417 y = 0.306254
POINT: x = 0.5 y = 0.320093
POINT: x = 0.625 y = 0.333932
POINT: x = 0.770833 y = 0.347771
POINT: x = 0.916048 y = 0.36161
POINT: x = 0.104476 y = 0.36161
POINT: x = 0.25 y = 0.375449
POINT: x = 0.395833 y = 0.389288
POINT: x = 0.5125 y = 0.403127
POINT: x = 0.635417 y = 0.416966
POINT: x = 0.78125 y = 0.430805
POINT: x = 0.92631 y = 0.444644
POINT: x = 0.114738 y = 0.444644
POINT: x = 0.260417 y = 0.458483
POINT: x = 0.302083 y = 0.472322
POINT: x = 0.475 y = 0.486161
POINT: x = 0.708333 y = 0.5
POINT: x = 0.886446 y = 0.513839
POINT: x = 0.0603875 y = 0.513839
POINT: x = 0.239583 y = 0.527678
POINT: x = 0.3125 y = 0.541517
POINT: x = 0.45625 y = 0.555356
POINT: x = 0.635417 y = 0.569195
POINT: x = 0.78125 y = 0.583034
POINT: x = 0.92631 y = 0.596873
POINT: x = 0.114738 y = 0.596873
POINT: x = 0.260417 y = 0.610712
POINT: x = 0.395833 y = 0.624551
POINT: x = 0.5125 y = 0.63839
POINT: x = 0.645833 y = 0.652229
POINT: x = 0.791667 y = 0.666068
POINT: x = 0.936572 y = 0.679907
POINT: x = 0.125 y = 0.679907
POINT: x = 0.270833 y = 0.693746
POINT: x = 0.583333 y = 0.707585
POINT: x = 0.525 y = 0.721424
POINT: x = 0.666667 y = 0.735263
POINT: x = 0.8125 y = 0.749102
POINT: x = 0.936572 y = 0.762941
POINT: x = 0.125 y = 0.762941
POINT: x = 0.25 y = 0.77678
POINT: x = 0.364583 y = 0.783699
POINT: x = 0.475 y = 0.790619
POINT: x = 0.4375 y = 0.845411
POINT: x = 0.697917 y = 0.858686
POINT: x = 0.75 y = 0.871962
POINT: x = 0.770833 y = 0.885237
POINT: x = 0.325683 y = 0.898456
POINT: x = 0.729299 y = 0.10181
POINT: x = 0.805475 y = 0.897183
POINT: x = 0.781905 y = 0.102429
POINT: x = 0.883552 y = 0.871962
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