Path mapper - flip rows

Hi!

I'm new at grasshopper and would really need your help! I was looking for some examples in this topic - flip rows with the path mapper but I cannot manage to make it work in my Example..:( Maybe someone could help me?

Thanks! Patricia

Replies to This Discussion

Permalink Reply by David Rutten on January 6, 2014 at 2:27pm

Hi Patricia,

by "rows" you mean the branches in the data-tree? I attached a file with two path mappers, one which mimics the Reverse List component and another which reverses the branch order, but also collapses all branches to a single number.

David Rutten

david@mcneel.com

Attachments:

reverse.gh, 8 KB

Permalink Reply by David Rutten on January 6, 2014 at 2:55pm

This sounds like a job for the [Split Tree] component. Can you explain a bit more about the data structure you have and which bits of it you want to select?

David Rutten

david@mcneel.com

Permalink Reply by David Rutten on January 6, 2014 at 3:56pm

Thanks Patricia,

it's midnight here and I won't be able to handle this today. If anyone else wants to step in, much obliged. Otherwise it'll have to wait till tomorrow.

David Rutten

david@mcneel.com

Permalink Reply by ng5 Alex on January 6, 2014 at 4:29pm

hello i tried something but without path mapper

i hope it helps you

Attachments:

pathmapper_help_1.gh, 28 KB

Permalink Reply by Hannes Löschke on January 6, 2014 at 4:52pm

Ok, problem is that after CatmullClark, your faces aren't in a sequential UV grid any more. They still are similar in vertex orientation, which will help.

The problem in general is that any solution based on single edges of the quads will essentially miss one row in U and V. That is easy to overcome if faces were ordered in a regular grid, but they aren't.

Here's a solution, that while being not very elegant, will give you all the mesh edges in U and V direction.

Attachments: