"mephuser" <nomail@nomail> wrote in message 
news:web.41f266d27e8c5a063d54f5180@news.povray.org...
> Need help with Isosurface and Predefined Shapes Code Conversion
>
>
> Sorry, I'm a newbie in Pov-Ray...
>
> //Predefined Shape Code
> cylinder{<0,-0.5,0>, <0,0.5,0>, 0.215}
> // What does <0,-0.5,0> mean?

 that's base point of the cylinder located around 0 units in the "X" 
dir -0.5 units in the "Y" dir and 0 units in the "Z" dir

> // What does 0.215 mean?

that's the radius ....

BTW: press the F1 key with the cursor located just after the keyword (in 
this case cylinder)

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