Ornamental Structures - Iterative Subdivision

Dear All,

I am working on digital ornaments and since I am not too experienced with grasshopper I would like to ask you guys for help.

I want to create 3D ornamental structures based on basic geometries. Like Michael Hansmeyer I want to divide the basic geometry again and again using an algorithm.

I started out in 2D to understand the basic principles. Using a Rectangle as basis I came up with this grasshopper definition:

2D Subdivision

I think it shows the main idea, however I cannot manage to make multiple iterations like this:

After some research I have the impression that grasshopper by itself is not capable of what i want to do and that i need some scripting. Is that true?

The final product should be a definition that takes a basic 3D geometry, subdivides it in multiple iterations, and has the ability to manipulate the geometry’s points for each iteration, to create an ornamental shape from a cube like this:

I would really appreciate any help or suggestions,

thanks a lot!

José

Replies to This Discussion

Permalink Reply by Aleksander Dynarek on January 10, 2016 at 3:00pm

In case of multiple iterations, use hoopsnake, or scripting

Permalink Reply by Joseph Oster on January 10, 2016 at 3:09pm

Use Anemone, not Hoopsnake!

But this looks more like recursion than just iteration?

Permalink Reply by Daniel González Abalde on January 10, 2016 at 3:28pm

Why? For this it is better be able to control the parameters in each iteration, that will be few.

Permalink Reply by Chronotrans_Development on January 10, 2016 at 4:03pm

this was definately a problem that i found also

Permalink Reply by Chronotrans_Development on January 10, 2016 at 4:32pm

probably it is more a recursion. Im not really sure about the terms

Permalink Reply by Daniel González Abalde on January 10, 2016 at 4:05pm

Here u have a example of recursion like that with hoopsnake.

Attachments:

Chronotrans.gh, 14 KB

Permalink Reply by Chronotrans_Development on January 10, 2016 at 4:26pm

Wow thank you very much! This was what I tried to achive first.

However it would only work for a 2-D pattern, right? And its not possible to change the parameter for each iteration?

Permalink Reply by Daniel González Abalde on January 11, 2016 at 12:30am

This particular def. works in a rectangle, for other shapes you must make some changes.

To use it:

0. Double click over component, show a winform.

1. "X" button to reset the loop.

2. "Play" button to run an iteration.

3. Make changes in parameters.

4. 2-3-2-3-2...

Permalink Reply by Chronotrans_Development on January 11, 2016 at 7:23am

I recognized that I can change the parameters each time before clicking on Hoopsnakes play button for the next recursion, which gives me a lot of variety in shapes. Really good!

However I don't really understand what is happening in your definition furthermore. Could you explain it a little? that would be really nice! And do you have any ideas how to do the whole thing with a 3D object / a cube? and how would I shift the editable points outside of the rectangle's/the cube's boundary?

Thank you so much for your help!

Permalink Reply by Joseph Oster on January 10, 2016 at 4:47pm

Impressive! I'll re-install HoopSnake and check it out.

Here is Anemone, but I wouldn't call this recursion:

By the way, this is the first time I've ever seen a point multiplied by a number!

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