How Delaunay pass through special points

Hey, I have a problem with delaunay mesh, how delaunay mesh pass through special points? I use delaunay mesh component in grasshopper, but I found out that the result wasn’t what I wanted, and I felt like it was an algorithm issue.
Can you achieve the effect shown in the picture?

delaunay special points.gh (4.4 KB)


image

delaunay special points-internalise.gh (26.8 KB)
sorry,bro!I forgot to internalise the data,I have reuploaded it!