Why doesn't this work? Replace item with polyline

Grasshopper
1

Any help much appreciated. I don’t understand why the replace item component isn’t filling the tree with polyline curves.

Thanks,

image
image1481×674 155 KB

Architectural model 1.gh (168.6 KB)

2

You need to provide it index values in “i” so it knows where in the list to put them. Also, your data structures do no match. You are putting a data tree into list and a flat list into item.

3

Ah thanks for that Michael. I think I’ve got it to work with the replace paths rather than replace items component.