Circular Pattern

[Anonymous]

Hi everyone

I want to make a circular pattern like the movie bellow.can anyone help me?

this is link of movie:

https://www.youtube.com/watch?v=6h-igPwdmo0

[FGPerraudin]

You will need to use Dynamo for that.

Definitely.

[FGPerraudin]

What you can do quite easily is the following:

Basically design a cone, make your grid, and then flatten it.

UV grid is still editable.

And it is very easy to do.

You could make it parametric very easily...

Would it be sufficient for you?

François

[Alfredo_Medina]

1. Create Family 1 with the generic adaptive templat; create 2 adaptive points. Create a dimension between the points. Create an instance reporting parameter, such as "D".
2. With center in point 1, make some circles, and control their radii with parameters, with formulas depending on "D", as shown in graphic # 6 in the image below.
3. Use "Divide Path" to divide the circles. Optionally, control the number of divisions with an integer parameter such as "N".
4. In another family with the generic adaptive template, create 2 adaptive points, and create a model line from point to point, with 3d snap activated. Load that family 2 into Family 1, and place Family 1 across the circles, from a node of the most inner circle to the correspondent node in the outer circle.
5. Use the Repeat tool to repeat Family 2.
6. Create formulas as needed, using "D" as the driver of all values.

Move adaptive point # 2. Everything will move in and out, as in that video.

[Anonymous]

Thanks Alferedo

I done your solutio,but I think if I need lots of circles ,firstly I should draw them all.Am I right?

[ToanDN]

@FGPerraudin

I have tried your approach but I cannot flatten the cone.  Could you share how you did it?

Thanks!

[Alfredo_Medina]

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@Anonymous wrote:

Thanks Alferedo

I done your solution,but I think if I need lots of circles ,firstly I should draw them all.Am I right?

---

Now I am confused. What do you expect to see when the adaptive point is moved? You want the pattern to grow and shrink maintaining the same number of circles, or you want to increase and decrease the number of circles?

[Anonymous]

No I want to increase and decrease the number of circles when adaptive point is moving.

[RDAOU]

Hi @Anonymous

what Zach has in that movie is just a divided surface (circular) with its diameter being reactive to the adaptive point (similar to what @Alfredo_Medina described) ... I think (if not mistaken) Zach has the details for that illustration on his website too

no circles are drawn...that's just the pattern division.

if you would then insert a family on that pattern and repeat it; then the reactor point will increase and decrease the elements as it expands and shrinks the surface.

[FGPerraudin]

Hi @ToanDN,

Here is a screencast showing thee advantages and limits of my method.

the idea is that you can flatten your cone up to a certain point, then Revit will not want to do it anymore for internat units/calculation limits reasons.

At that point, the grid will get back to a rectangular classic one.

Advantages: easy to make, parametric, using "classic" patterns, no need of placing your adaptative components on your grid one by one.

Limits: It will get only as flat as you can negociate with Revit, but it can get pretty flat. On the other hand, circular structures are never flat, for several reasons:

• You need to evacuate water, conical beeing the easiest way to do it
• the tension or compression on a circular flat spiderweb structure becomes infinite with flatness. so you need pillars...

There we go,

Not perfect but on my side of the design it does the trick!

Hope it does for you as well!

François 

[FGPerraudin]

And if you want perfectly flat solution, I would personnaly look for Dynamo solutions,

Dynamo can generate parametric grids that can then have panels attached with a few clicks...

It is pretty awesome!

François

[ToanDN]

Thanks for the clarifications. Appreciate it.

[FGPerraudin]

You are welcome, just couldn't answer during the weekend...

François

[FGPerraudin]

Once again Dynamo saves the day!

François