CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

I suggest to read [1].

According to your coordinate I don't believe they are really coplanar.
Moreover, depending on how you read the data (the closest double or the
rational number), you won't have the same input points.

Your points are almost coplanar but are not exactly coplanar.


[1] http://www.cgal.org/FAQ.html#inexact_NT

On 04/10/2013 09:24 PM, ayongwust_sjtu wrote:
> This is the right testing data:
>
> v1
> [0] = -0.22209167480468750
> [1] = 0.50670331716537476
> [2] = 1.0210649967193604
>
> v2
> [0] = 0.59293586015701294
> [1] = 0.45931974053382874
> [2] = 0.95057666301727295
>
> v3
> [0] = 0.41287946701049805
> [1] = 0.37877112627029419
> [2] = -1.0771968364715576
>
> v4
> [0] = -0.40214806795120239
> [1] = 0.42615470290184021
> [2] = -1.0067086219787598
>
>
>
> -----
> -------------
>
>   Regards,
>   Xianyong Liu
> --
> View this message in context: 
> http://cgal-discuss.949826.n4.nabble.com/co-planar-testing-tp4657160p4657162.html
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