Simplify Tree

Replies to This Discussion

Permalink Reply by Danny Boyes on July 10, 2013 at 4:58pm

When I simplify the Tree:

{0;0;0;0;0}

{0;0;0;0;1}

{0;0;0;0;2}

{0;1;0;0;0}

{0;1;0;0;1}

{0;1;0;0;2}

I should get:

{0;0}

{0;1}

{0;2}

{1;0}

{1;1}

{1;2}

Not:

{0}

{1}

{2}

{3}

{4}

{5}

If I wanted this I would use Replace Branches

How else would I know that branches {3}, {4} and {5} where part of the same geometry.

Permalink Reply by AnewGHy on July 11, 2013 at 3:43am

That isn't the issue, i understand the below; operations on multiple braches makes sense. The issue is the simple fact that there is no reason why one branch can't be simplified to {0}. Rather than repeat myself, please read my previous post.

Permalink Reply by David Rutten on July 11, 2013 at 4:10am

Simplifying a single branch to {0} is not any more consistent than what happens now. It is quite possible that the number of branches in a datatree vary based on some variable somewhere. If this tree is then fed through a Simplify filter then it is most likely that you will not get a consistent result.

The algorithm that was proposed earlier (remove all zeroes and keep all non-zeroes, unless if there are only zeroes in which case leave one) probably has the highest consistency, but even it cannot be relied upon. I still think this is a problem to which there are no good answers.

--

David Rutten

david@mcneel.com

Tirol, Austria

Permalink Reply by Rémy Maurcot on July 11, 2013 at 5:35am

I do not understand why we simplified:

{0, 0, 0, 0, 0}

{0, 0, 0, 0, 1}

{0, 0, 0, 0, 2}

{0, 1, 0, 0, 0}

{0, 1, 0, 0, 1}

{0, 1, 0, 0, 2}

by

{0}

{1}

{2}

{3}

{4}

{5}

The good result is:

{0, 0}

{0, 1}

{0, 2}

{1, 0}

{1, 1}

{1, 2}

 

I'm the only case with a single branch:

{0, 0, 0, 0}

which give

{0}

or

{0;1;0;0}

give

{1}

Now I understand the message of David. I walk around the problem with a definition (page 2).

but it's really tedious.

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