"Cool and simple solution. Thanks David!!"
generative modeling for Rhino
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Yan Huang
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Creating a fan shape in grasshopper
9 Replies
I need to create a series of circular fan shapes, and I need to be able to change the number of wings by using a slider component. How should I do that?I was thinking about dividing a circle into n…Continue
Started this discussion. Last reply by vandewalle rense Jul 25, 2010.
question~How do I generate a fan-shaped form using GH?
3 Replies
I need to generate a fan-shape form using grasshopper like that shown on the bottom of my attached picture. I also need to be able to control the number of wings using a slider component. I was…Continue
Started this discussion. Last reply by Daniel Xiong Jul 25, 2010.
How do I control the curvature of an arc
13 Replies
Hi, I have 3 points, A, B, and C, I want to make 2 arcs, one from points A and B, and the other one from points B and C. I have the arcs, but is there a way to control the curvature of the 2 arcs so…Continue
Started this discussion. Last reply by paloma Dec 13, 2010.
creating trusses (?)
1 Reply
I am trying to create 2 trusses from 3 points: A, B, and C.(please refer to the attached pictures)one requirement is that the bottom cord of truss 1 must be the tangent of the truss2, which means…Continue
Started this discussion. Last reply by Jon Mirtschin Jul 12, 2010.
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Jon Mirtschin replied to Yan Huang's discussion How do I control the curvature of an arc"Well, I'm told the assignment deadline has well and truly passed, so I've posted my Grasshopper definition (using Geometry Gym Components) at modelling this truss. You can download the definition from http://geometrygym.blogspot.com if you…"
vandewalle rense replied to Yan Huang's discussion Creating a fan shape in grasshopper"here is my file:
I just used a circle-> divide -> made a cull pattern-> moved the rest to the middle with a vector."
Jacek Jaskólski replied to Yan Huang's discussion Creating a fan shape in grasshopper"Sure thing:
If you transform the four equations in 3°, ruling out spare variables, you'll get the formula.
1. There's probably a simpler formula out there...
2. Instead of using trigonometry you could find intersections of parallel…"
Danny Boyes replied to Yan Huang's discussion Creating a fan shape in grasshopper"Here's a picture of what I had in mind:
"
Daniel Xiong replied to Yan Huang's discussion question~How do I generate a fan-shaped form using GH?"Really? Could you please show me that?"
Yan Huang replied to Yan Huang's discussion Creating a fan shape in grasshopper"Hi Danny, I don't quite understand what you mean by step 3, "create a repeating pattern of scales eg 0.5,1,1,0.5,1,1.....N", can you explain it a little?
Thank you so much"
Yan Huang replied to Yan Huang's discussion Creating a fan shape in grasshopper"Can you explain how to make it simpler? Thank you."
Leon Deng replied to Yan Huang's discussion Creating a fan shape in grasshopper"Jacek Jaskólski
That's a very neat solution. But can you explaint the part which ensures the parallel lines. I'm a new user to grasshopper, I'm jut a little confused the formula. Thank you very much."
vandewalle rense replied to Yan Huang's discussion Creating a fan shape in grasshopper"I also gave it a try, but more simple then the one here above witch is indeed very neat"
Jacek Jaskólski replied to Yan Huang's discussion Creating a fan shape in grasshopper"That's a very neat solution.
If I may throw in my two cents:
1/100: there's no need to create a circle - let's just create points form polar coordinates, should be a bit faster,
2/100: if we'd like for the wings to have…"
Danny Boyes replied to Yan Huang's discussion Creating a fan shape in grasshopper"One approach might be to use the Scale Component to reduce the radius of certain control points around the circle.
1) Create circle.
2) Divide Circle by N points
3) create a repeating pattern of scales eg 0.5,1,1,0.5,1,1.....N
4) plug points and…"
Yan Huang replied to Yan Huang's discussion question~How do I generate a fan-shaped form using GH?"Thank you, but this one didn't really work at some point, for a certain number of wings, the voids are not triangular."
Daniel Xiong replied to Yan Huang's discussion question~How do I generate a fan-shaped form using GH?"I attached my way of doing it. Hope that helps.
You probably need GH0.7.0036 to open the file.
"
Yan Huang replied to Yan Huang's discussion How do I control the curvature of an arc"Thank you Leon, Jon, and David for you help!
Yan"
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