Triangulation of 4 2D points

[designengrlab]

Triangulation of 4 2D points

[mc0re]

The exact failing data set is:
(0, 0),
(0, -2),
(-0.70710678118654746, -1.5),
(-0.70710678118654746, -0.5)

[micampbell]

Please see latest version (1.0.17.0911). I think this "edge case" has been fixed.

[CharlesGavett]

micampbell, I do not this this problem has been solved. I am using version 1.1.18.1016 and am getting the problem with the following data set:
1298, 1094
1298, 1096
1298, 1097
1298, 1098

I get this error: System.ArgumentException: 'The input data is degenerate. It appears to exist in 3 dimensions, but it is a 2 dimensional set (i.e. the point of collinear, coplanar, or co-hyperplanar.)'

[micampbell]

if those four points are your entire data set, then this is correct to receive this error. Note that your 4 points are making a vertical line, and you appear to be asking for the delaunay triangulation or the voronoi. The existing methods are not able to handle this degenerate case.