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∑ XahLee (xahlee@noagendasocial.com)'s status on Thursday, 14-Sep-2017 17:45:30 EDT ∑ XahLee

#math what's the best interactive polyhedra in JavaScript today? please recommend. like these but need js versions http://xahlee.info/math_software/polytopes.html

In conversation Thursday, 14-Sep-2017 17:45:30 EDT from noagendasocial.com permalink
1. Jezza™ (jeremiah@noagendasocial.com)'s status on Thursday, 14-Sep-2017 20:59:08 EDT Jezza™
  in reply to
  
  @xahlee Nothing tops Great Stella (win32), though Wolfram's tech (Alpha) are online and can certainly wrangle polyhedra: https://www.wolframalpha.com/input/?i=icosahedron
  
  In conversation Thursday, 14-Sep-2017 20:59:08 EDT from noagendasocial.com permalink
  1. ∑ XahLee (xahlee@noagendasocial.com)'s status on Thursday, 14-Sep-2017 21:01:40 EDT ∑ XahLee
    in reply to
    
    @jeremiah i have Great Stella on that page. ^_^
    what i wanted is a js version. I don't think any can beat Great Stella, but i want best js version anyone knows. I thought these days there should be some, but what i found is lousy.
    I emailed with Great Stella author some 10+ years ago.
    
    In conversation Thursday, 14-Sep-2017 21:01:40 EDT from noagendasocial.com permalink
    1. Jezza™ (jeremiah@noagendasocial.com)'s status on Thursday, 14-Sep-2017 21:04:16 EDT Jezza™
      in reply to
      
      @xahlee i would think it would fairly simply to do with Three.js; for example:
      https://matthewarcus.wordpress.com/2015/06/16/drawing-uniform-polyhedra-with-javascript-webgl-and-three-js/
      In conversation Thursday, 14-Sep-2017 21:04:16 EDT from noagendasocial.com permalink
      Attachments
      
      Invalid filename.
      
      Drawing Uniform Polyhedra with Javascript, WebGL and Three.js
      
      By matthew from matthew arcus
      
      I’ve been meaning to write this up properly for a long time, but for now, this link will have to do:
      
      http://matthewarcus.github.io/polyjs/
      
      The idea is to use some fairly straightforward vector geometry to generate uniform polyhedra and their derivatives, using the kaleidoscopic construction to generate Schwarz triangles that tile the sphere. We use spherical trilinear coordinates within each Schwarz triangle to determine polyhedron vertices (with the trilinear coordinates being converted to barycentric for actually generating the points). Vertices for snub polyhedra are found by iterative approximation.
      
      We also can use Schwarz triangles to apply other symmetry operations to the basic polyhedra to generate compound polyhedra, including all of the uniform compounds enumerated by John Skilling (as well as many others).
      
      There are some other features including construction of dual figures, final stellations, inversions, subdividing polyhedra faces using a Sierpinksi construction, as well as various colouring effects, exploding faces etc..
      
      Much use was made of the work of others, notably George Hart and Zvi Har’El as well as the wonderful Three.js library by Mr.doob.
      1. ∑ XahLee (xahlee@noagendasocial.com)'s status on Thursday, 14-Sep-2017 21:04:46 EDT ∑ XahLee
        in reply to
        
        @jeremiah yes, i found that. wasn't very good. ^_^
        
        In conversation Thursday, 14-Sep-2017 21:04:46 EDT from noagendasocial.com permalink
        
        Jezza™ (jeremiah@noagendasocial.com)'s status on Thursday, 14-Sep-2017 21:06:32 EDT Jezza™
        in reply to
        
        @xahlee maybe the problem is monetizing it. I seem to remember the better mathematical software being mostly spendy, including Great Stella...
        
        In conversation Thursday, 14-Sep-2017 21:06:32 EDT from noagendasocial.com permalink
      2. ∑ XahLee (xahlee@noagendasocial.com)'s status on Thursday, 14-Sep-2017 21:07:01 EDT ∑ XahLee
        in reply to
        
        @jeremiah that page is more like js demo showing pretty pictures and js power than showing anything about math.
        
        In conversation Thursday, 14-Sep-2017 21:07:01 EDT from noagendasocial.com permalink
        
        Jezza™ (jeremiah@noagendasocial.com)'s status on Thursday, 14-Sep-2017 21:07:47 EDT Jezza™
        in reply to
        
        @xahlee I think it demonstrates that the pieces are there, just not the will to implement a proper application engine for it.
        
        In conversation Thursday, 14-Sep-2017 21:07:47 EDT from noagendasocial.com permalink

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