logarithmic spiral

What is the most elegant (efficient, simple, clean) way to define a logarithmic spiral in xyz? Attached is a gh I got from modelab intro tutorial #7: "spiraling". Am new to grasshopper but not to 3D modeling-have been using Autocad for years. Have taken 20+ GH tutorials and am attempting to learn how to think parametrically. I ask this question because this geometry is essential to everything I am doing now. Any input or direction is greatly appreciated. Old dog, new tricks. Thanks, David

Attachments:

Spiral 2.gh, 9 KB

Replies to This Discussion

Permalink Reply by Daniel González Abalde on May 28, 2015 at 4:21pm

There are plenty of ways to do it ... But sure it amuses you :)

Attachments:

Spiral2.gh, 16 KB

Permalink Reply by David Stewart on May 28, 2015 at 5:11pm

Daniel, There are always plenty of ways to accomplish any given endeavor. In my experience, one is amused, bemused and enthused only by the beautiful way. Any practical advice for a newbie? That definition seemed clunky. Not commensurate with the elegance of the geometry. David

Permalink Reply by Daniel González Abalde on May 28, 2015 at 5:51pm

My advice is to seek elegance in yourself first, later in the geometry.

Permalink Reply by ng5 Alex on May 28, 2015 at 6:00pm

Permalink Reply by David Stewart on May 30, 2015 at 3:16pm

Daniel, Sorry, I did not open your attachment because it had the same file name as the one I attached. I was referring to the original file as clunky, not your exquisite design. I am now attempting to understand the logic of its structure. The learning curve here is daunting but exhilarating as well. Where do I learn about remapping? We share a path as seekers of beauty-you are clearly much further along this binary-digital road than I. Perdoname. David

Permalink Reply by peter fotiadis on May 30, 2015 at 11:45pm

Hi David

Speaking about elegance > here's a def that deals with the ultimate challenge: the elegance of ... er ... hmm ... a recipe.

It contains a lot of 3d curves (and a bunch of "chaotic" parameters) as well ... but that's not the big deal.

He, he

best, Lord of Darkness

Attachments:

spiral_and_Goldspiral6.gh, 324 KB

Permalink Reply by Kim hauer on May 31, 2015 at 12:50pm

Thanks Peter:
.....Its not always easy to slip into your scripts, but slowly the shoe is starting to fit ...sometimes! ...sometimes more Gin is required! :)

Permalink Reply by Daniel González Abalde on May 31, 2015 at 2:51am

Ok, it was a misunderstanding, excuse me you too. RempapNumbers only makes a rule of 3, for example, if 0.7 is in the range of 0-1, and we want to be in the range of 0-10, the result will be 7. I use this component because graph mapper works (by default) in a range of 0-1, then with remapNumbers change values using the minimum and maximum of them.

Permalink Reply by David Stewart on May 31, 2015 at 12:28pm

So, if I want to locate points along a curve in a Fibonacci sequence, I can remap the output of DivdeCurve into unequal segments? Not finding training on ReMap.

Permalink Reply by Daniel Kolling Andersen on May 29, 2015 at 2:30am