OffsetCurve changes the data structure

Replies to This Discussion

Permalink Reply by David Rutten on April 15, 2014 at 3:02am

Curve offsets can result in multiple outputs for a single input curve. It was always thus.

--

David Rutten

david@mcneel.com

Permalink Reply by Rajaa Issa on April 15, 2014 at 12:08pm

Of course. Thanks.

I needed to group corresponding pairs of curve+offset(s) to create a boundary surface out of each pair. I suppose a proper approach would be to graft the tree of curves (before offset) and then weave with the offset result.

Permalink Reply by Vicente Soler on April 17, 2014 at 5:38pm

Since you are offsetting quads, it's likely you can get away with using offset loose. For each curve it will output a single item rather than a list so the data structure remains the same.

If you then want to have branches with two elements, the original and the offseted curve, you can:

- Connect both of them to a merge component, graft the inputs. Might need to use simplify.

- Connect both to an entwine component, then use flip matrix.

- Graft the input of the offset loose component, offset using a list of two values {0, offset distance}.

- Use weave and then partition list.

- Like the first one but using insert item rather than merge.

- Use weave and then path mapper with {floor(i/2)}

- Use merge and then path mapper with {i%(item_count/2)-1}