rotational building

Replies to This Discussion

Permalink Reply by Garcia del Castillo on August 3, 2012 at 11:06am

Hi Juan!

Could you be a bit more specific in what is it exactly that you want to implement? The rule of your logic? Maybe post some sketches?

Your point rotation wasn't working due to a small tree structure problem with the reverse list component, I have posted a file with the fix.

Also, for height variation parameters, please take a look at the examples in this thread: http://www.grasshopper3d.com/group/parametriccamp/forum/topics/vert...

Attachments:

• rotationalbuilding_JLX.gh, 12 KB

Permalink Reply by Juan on August 4, 2012 at 12:03pm

Hi!

I´ve been studying the thread, its a very good work but I think that in my case could be more interesting manipulate the height between floors (but I´m not sure) and in the example he works with the number of vertebrae along the curve.

This is an example that i want to do.

I want to generate a skin that embraces the building and then choose the diferents terminations like voronoi skin, triangular mesh… or something like that.

This is an sketches.

Is it possible to create a surface “A” and then create a random points mesh to make a voronoi in the surface?

I don´t know if I´m following the right steps. I don´t understand exactly what was the problem with the tree but now the points work well.

Thanks!!!!!

I´ll just continue with my work.

Permalink Reply by Juan on August 4, 2012 at 12:04pm

Sorry the file

Attachments:

• rotational building(04_Agost).gh, 16 KB

Permalink Reply by Garcia del Castillo on August 5, 2012 at 5:34am

Hi Juan,

Doing voronoi in the surface with GH is basically doing a planar one first, and then remapping the curves on the surface (see example attached):

If you want to triangulate the facade, check out the 'glass facade' afternoon exercise from the Camp.

Also, if you want to be able to choose which pattern to use, look at the dispatch component workflow:

http://www.grasshopper3d.com/group/parametriccamp/forum/topics/pers...

Permalink Reply by Garcia del Castillo on August 5, 2012 at 5:35am

The files...

Attachments:

• VORONOI ON SURFACE.3dm, 43 KB
• VORONOI ON SURFACE.gh, 5 KB

Permalink Reply by Garcia del Castillo on August 5, 2012 at 6:30am

You can check another voronoi skin example here:

http://www.grasshopper3d.com/profiles/blogs/voronoi-skin-by-angel-q...

Permalink Reply by Juan on August 8, 2012 at 6:04pm

Hi Jose Luis!

I´m learning not only grasshopper but also English.

I´ve been studying the proyect you post but I´ve some questions. The first one is:
in the point “A” ,Is it necesary generate all this geometry or it´s possible to do the same by another form, because my building is too high and the process is very heavy.

The other question is:

“Me parece interesante la fachada del edificio que te adjunto, ¿cómo puedo sacar los puntos medios que aparecen en fachada que tiran de ella hacia fuera para darle una mayor profundidad (donde se engancha la estructura metalica exterior)? y ¿cómo consigue reducir los puntos en una de las orientaciones?; ¿lo hace con el punto atractor? Porque al ser un patrón de voronoi con los bordes redondeados no sé exactamente cómo se haría”

http://www.youtube.com/watch?v=eaLOKvmRgRA&feature=fvsr

Sorry, but I don´t know how explicate this text in english.

Thanks you for all!!!

Permalink Reply by Garcia del Castillo on August 9, 2012 at 6:07am

I propose three options:

- Bounding box + center: very heavy, but probably close to finding the real curve centroid.

- Calculating the average of the kink points in the voronoi cells: probably the cheapest, but creates much deviation

- Creating a lot of points along the voronoi curves and calculating the average: a midway through, but probably the closest way to finding the real curve centroid, and also very cheap:

Now working on that video you post, you can easily use this point to move it in our out of the surface and create geometry with it. The problem then becomes the in/out direction vector, which could probably be solved with the normal vector of a best fit plane along the curve points...

Attachments:

• VORONOI ON SURFACE_centroids_jlx.gh, 8 KB