Voronoi 2D Error

Grasshopper
1

Hello,

I’m having a problem with the 2D Voronoi in grasshopper. The Voronoi component is creating an extra cell in some cases without a input point. Sometimes it’ll be overlapping cells, other times it will create a random cell within another. Oddly, the Voronoi 3D component seems to be working fine. does anybody know a reason for this?

I’ve attached some pictures below and a file with the data.

2D Voronoi (example 1)

vor 2d 1
vor 2d 1615×768 88.8 KB

3D Voronoi (example 1)
vor 2d 2
vor 2d 2587×764 102 KB

2D Voronoi (example 2)
vor 2d
vor 2d530×749 69.7 KB

3D Voronoi (example 2)
vor 3d 1
vor 3d 1534×660 64.4 KB

File : Voronoi error.gh (18.1 KB)

2

With a random move it seems to suppress the problem

image
image1097×804 142 KB

So the problem is surely a numeric problem with “perfectly” aligned points

3

Maybe you have duplicate points

4

There is a cull duplicate before this, but even in that case there should still be a point within the ‘random’ cell I think

5

Thanks for this solution, seems to have fixed it. Still weird that this is an issue in the first place

6

Use the Bounding box as Boundary

image
image1366×745 68.6 KB

7

This seems to work as well, but still doesn’t resolve the reason to why it happens

8

@DavidRutten is this a numerical error within the voronoi component?