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create 3D path shell (Read 1063 times)
st33d
create 3D path shell
Oct 9th, 2005, 8:42pm  
I have two points:
  • x1,y1,z1
  • x2,y2,z2

I want to store those points in a file. And I can. However I would also like to create a shell around this path. My assumption is that I can create a shell by casting a cylinder around the path. I can then increase or decrease the number of plates around the cylinder (a minimum creating a prism).

I need to find out the angles the line is pointed in to cast discs perpendicular to the line. Then I can just iterate around the disc to make a cylinder of paths.

My major issue here is that I'm not simply going for a graphics display. I want to save a romping amount of polygons that I can port into a 3D package.

Can anyone help?
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JohnG
Re: create 3D path shell
Reply #1 - Oct 10th, 2005, 11:51am  
You're in luck. I did somethign similar a while ago:

http://processing.org/discourse/yabb_beta/YaBB.cgi?board=Contribution_3DOpenGL;action=display;num=1114043021

There's code in Tube.pde which which creates pretty much what you want. The only thing missing is a parameter for how many segments you want the cylinder to have, I've got it locked to 8 in the code, but I think it should be fairly straightforwards to make the number of sides variable.
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st33d
Re: create 3D path shell
Reply #2 - Oct 10th, 2005, 1:00pm  
w00t!

Thanks.
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