POV-Ray : Newsgroups : povray.newusers : geodesic dome : Re: geodesic dome Server Time
19 Apr 2024 17:40:26 EDT (-0400)
  Re: geodesic dome  
From: Alain
Date: 12 May 2016 19:00:17
Message: <57350b01$1@news.povray.org>

> Hi, I'm new to povray. I'm designing a 3V geodesic dome and for checking I got
> all the angles and coordinates right, I rendered my design in povray. Now I
> want to include an image of the three different strut lengths with their so
> called "compound cuts". This turned out more difficult then I expected. What is
> the best way to create an image like
> http://northernhomestead.com/wp-content/uploads/Geodome6.jpg.
>
>
>

Assuming that +X is to the right, +Y is up and +Z is forward. That's the 
standard left handed coordinate system that POV-Ray use.

Start with a box.
Use a difference with two smaller boxes at each end.
For the part that you show, the two box need to be rotates first by 

The best way, in my view, would be to start with the main box going 
toward +X and centered around the X axis.
Next, have a smaller box that you rotate as follow:
rotate<-4.71, 55/2, 0>
Make two copies, the second copy will scalled as follow to make it into 
a mirror image:
scale<1,1, -1>
Finaly, translate those toward the end of the main box.

Try to keep the smaller cutter boxes as small as possible.



Alain


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