surface strips manipulation

Hi everyone!

I have a little problem with a definition I am working on.

It divides a surface into strips and then manipulates these strips according to the distance from an attactor (a curve in the atteched file).

In order to do this I use points on the lines that defines the strips. Moving these points modifies the strips.

The definition works fine as long as the attractor is one geometry. I cannot figure out to make it work when the attactor geometries are two; then the strips of the surface should modify only according to the closest (meaning that the points should move according to their distance from the closest attractor geometry).

I guess I should work with the path mapper or with the branches of the tree containing the points through which I build the curves and the strips ... but I cannot figure out how.

Any help will be welcome.

Thank you.

Giorgio

Attachments:

strips_g.jpg, 513 KB
strips_g.gh, 15 KB
strips_g.3dm, 255 KB

Replies to This Discussion

Permalink Reply by Giorgio Ponzo on December 11, 2011 at 5:55am

I think it works like this, thank to Tree8 list management components!

For anyone who is interested.

Giorgio

Attachments:

strips_g_2.3dm, 259 KB
strips_g_2.gh, 31 KB

Permalink Reply by Jissi Choi on December 11, 2011 at 8:58am

Yes.. Great..

You used AllocB (Allocation with Branches) like as Graft

and AllocN (Allocation with # of Items) like as Shift Paths..

I have one suggestion..

You can use Relative Items to make two groups from same data with symmetric shift of branches or indices..

In below image..

the red group is your original definition using cull and shift of curves,

the green one is using Relative Items,

and the blue one is using First-End List of Tree8.. for same results..

Attachments:

strips_g_3.gh, 36 KB

Permalink Reply by Giorgio Ponzo on December 11, 2011 at 11:11am

thank you very much!!

Permalink Reply by L]G on October 22, 2012 at 7:13am

Hi,

what is the difference between Graft, Simplify. Flatten,....etc.i can never figure out how important it is or how it changes the information going in.

thanks in advance

Permalink Reply by djordje on October 22, 2012 at 3:54pm

For Graft and Flatten, take a look at this topic.

Reverse is just reversing the order of data inside of a list. For example if you had a list with this data:

By reversing it, you will get this:

For Simplify I copied this from Grasshopper component help:
Simplify a tree by removing the overlap shared amongst all branches. Imagine a tree with six branches:

A = {0;1;0}
B = {0;1;1}
C = {0;1;2}
D = {0;2;0}
E = {0;2;1}
F = {0;3;0}

As you can see all these branches share the same first index (0). Thus if you were to Simplify this tree, you'd end up with:

A = {1;0}
B = {1;1}
C = {1;2}
D = {2;0}
E = {2;1}
F = {3;0}

Permalink Reply by Emma Chris on May 29, 2013 at 1:57am

Do you know if this kind of operation (creating strips and then twisting them along a curve) can be achieved also for an already defined surface? Because the gh model for this one generates that surface which is then subdivided. I am wondering if I can apply it to a non-planar surface. Thank you!

Permalink Reply by Hooman Homayooni on August 2, 2013 at 3:23pm