Non-linear Decreasing Concentric Circles?

Replies to This Discussion

Permalink Reply by Jason Thomas on July 16, 2015 at 5:56pm

I did a crappy sketch, something a bit like this.

Attachments:

• Circles Decreasing.png, 13 KB

Permalink Reply by Ryan Whitby on July 16, 2015 at 6:49pm

If I understand you correctly you want the Outer Diameter Circle to be replaced each time with the new circle.  Simplest way would be to create a loop.  You can't do this with native components (other than a scripted component which would probably be pretty simple, but my c# skills are lacking) but if you download the anemone or hoopsnake plugin you can create a loop that can do it.

Permalink Reply by Christopher Edgemon on July 17, 2015 at 1:59am

Simple version in python:

radii = [outer_radius]

tween_radius = step * outer_radius

while tween_radius > inner_radius:
  radii.append(tween_radius)
  tween_radius *= step

  if len(radii) > maximum:
    break

radii.append(inner_radius)

Attachments:

• circles.gh, 8 KB

Permalink Reply by Martin Siegrist on July 17, 2015 at 3:18am

I would do it like this:

- Create a domain for your two main radii

- create a range of numbers from 0 to 1, reflecting the number of circles you want

- use a graph mapper to manipulate the numbers on domain 0 to 1

- remap the values from the graph mapper to your circle domain

The path mapper component also has other curves available so you can really start to play visually instead of having to program a function...

Permalink Reply by Jason Thomas on July 17, 2015 at 3:39am

OK, So I've been tinkering.

I've got a bit of the definition that gets me the percentage I need, I think. I'll post this and then try and read/understand your suggestions.

Here's a better vision of where I'm trying to get to - (Manually Drawn)

Attachments:

• Concentric Pattern.gh, 9 KB