Consolidating Paths of Consecutive Path Integer

Grasshopper
1

Hi,
I’m struggling with a data tree issue in Grasshopper, and I can’t seem to get the structure right…
I have a tree of planes organized in branches with single-level paths like:
{0} {1} {3} {4} {5} {7} {8}…
Each branch contains several planes.
What I want to do:
Detect branches with consecutive path numbers (for example {0} and {1}; {3},{4},{5} and so on).
Group those consecutive branches together. So the structure should become something like:
{0} → former {0},{1}
{1} → former {3},{4},{5}
{2} → former {7},{8}
I managed to extract branch indices using Deconstruct Path
Detect consecutive numbers
Create group indices (like 1,1,2,2,2,3,3)
But I get stuck when trying to properly rebuild the tree so that the grouped branches are merged into new paths.

Any help appreciated!

Best,
Vince

Pathgrouping.gh (14.9 KB)

Pathgrouping
Pathgrouping3020×1814 394 KB

2

This is solved pretty simply with Member Index

image
image1870×780 120 KB

Pathgrouping_solved.gh (17.5 KB)

1 Like
3

There are easier ways to do this, but continuing on from what the OP had started, and you continued to do:

high res test
high res test5632×1202 358 KB

Pathgrouping VR 01.gh (14.6 KB)

4

Replace Paths has never been intuitive to me so I tend to partition lists manually-

image
image1602×825 139 KB

Pathgrouping_solved2.gh (25.1 KB)

(edit: forgot to flatten at the list partition size)

5

The common way to approach this is with Relative Differences:

high res test
high res test3486×614 160 KB

Pathgrouping VR 02.gh (12.4 KB)

using Partition List, as you prefer.

2 Likes