mesh intersection problem

Hi, I am new here and also new to grasshopper. I'm currently working on a recursive mesh mountain fractals.

I'm having a problem with the self intersection mesh of my model. I have attached the image and the grasshopper file for reference.

Based on the image, I used mesh|mesh intersection component and plugged in the same set of mesh (data with 49 branches) to locate the intersecting mesh. For some reason, the intersection shows a different result as to the obvious intersection (highlighted in dotted lines). I'm not sure why it's not working or maybe I have plugged the wrong component.

Can anyone give me a suggestion/show the correct way to do this? basically to find the self intersecting mesh face within a set of mesh.

Thanks in advance

Attachments:

grasshopper.JPG, 1 MB
DS10_Mountain Fractals_for upload.gh, 52 KB

Replies to This Discussion

Permalink Reply by Arthur Mamou-Mani on October 29, 2014 at 8:49am

Hi Aslan,

It looks like you have two grafted lists in your intersection. Try two things: 1) Flatten both lists 2) Try Cross-referencing both lists so that every mesh face checks for every mesh face.

I hope it helps,

Arthur

Permalink Reply by Andrei on October 29, 2014 at 8:54am

Aslan,

have a look at the file and ps I attached. You need to make sure you avoid self intersections through datatree management. Then use dispatch based on a null flag to get your meshes. Also you might want to look into making the definition more efficient by intersecting only adjacent objects.

JAM.d

Attachments: