Grasshopper definition for a Circular moire effect.

I am trying out a circular moire effect. I wanted to have various centers for various circles (say 7 circles) and on every center would have a series of concentric circles like in the image below. The difference would be, I think, that the radius growth would increase not linearly but with a growing difference everytime. Say for instance that I have a 1.25 growth factor from circle to circle and also can anyone help me with the same growth principle like the one in the image? How can I have (n)number of circles growing inside a circle?

Thank you!

Replies to This Discussion

Permalink Reply by Zafrin Hossain on January 3, 2013 at 11:25am

Thank you. Yes, Jissi's one does do that but I wanted a little bit more control over where I place the center of the circles. For your definition, what is the curve that needs to be assigned on the GH definition?

Thank you again!

Permalink Reply by Hannes Löschke on January 3, 2013 at 12:10pm

I was expecting you to use your Moire_engraving 3dm file. The curve is the rectangular outline.

Permalink Reply by RWNB on January 3, 2013 at 12:21pm

ich dachte, überall dort wo eine klare fläche durch die linien definiert wird (also eine fläche, was von umrisslienien bestimmt ist), auch eine eigenständige farbe zuweisen. dadurch wird das erscheinungsbild vielfältig und komplex. aber wahrscheinlich zu kompliziert so eine definition zu erstellen?

Permalink Reply by Hannes Löschke on January 3, 2013 at 3:42pm

So you want something like a curve boolean for every closed cell in the network?

Right now I'd say, it's not feasible with GH.

You can find all the intersections and shatter the curves to cell boundaries. Finding closed cells from this set of curves might be possible with a script. There is a component in KARAMBA that finds cells in a network of lines. It's nice and fast, but this component needs the whole network compressed from individiual lines to individual nodes and connectivity. So for a cell made of two arc-like curves there is no way to identify the original border curves form their vertices.

Permalink Reply by RWNB on January 4, 2013 at 2:05am

many thanks for the note!

Permalink Reply by Lara Frydman on September 21, 2015 at 1:38pm

Do anyone know how to make this definitions but with rectangles instead of circles?? i need to make a moire effect with cubes and then generate distorsion to them, to generate a rotation