Delaunay 2D connecting wrong points

ParaView Support
1

Hello,
I’m trying to coloring of a flat surface from a data in a four columns (x, y, z, scalar) .csv format (Dropbox - sqrtJ2SRM-Determ.csv - Simplify your life). I open the .csv file and use the filters “Table To Points” and “Delaunay 2D”, and this is what I get:

image
image1848×1016 171 KB

But the geometry I get is wrong, the is some lines connecting in wrong places near the slope toe.

See the point data:

image
image1846×1052 226 KB

How to fix this?

2

Hello,

Increasing the value of Alpha in the Delaunay2D filter will improve it.

delaunay_alpha
delaunay_alpha1004×717 203 KB

If the incorrect parts still remain, you may need to select them manually, then check Invert Selection in the Find Data tool to make sure only the correct parts are selected, and use the Extract Selection filter.