On Tue, 4 Dec 2001 16:19:42 -0500, Bill DeWitt wrote:
> 
> "Ron Parker" <ron### [at] povrayorg> wrote in message
> news:slr### [at] fwicom...
>> On Tue, 4 Dec 2001 15:20:45 -0500, Bill DeWitt wrote:
>> >
>> >     Probably a really screwy way of doing it, but it makes sense to me.
>>
>> Almost exactly what I do, except that I see z as into the monitor (i.e.
>> z increases as the distance from the viewer does) and so I use a
> left-handed
>> system (yours is right-handed.)
> 
>     But ... but.. how do you see through the graph paper?

I just use a sharpie to draw the lines right on the screen.

-- 
#macro R(L P)sphere{L F}cylinder{L P F}#end#macro P(V)merge{R(z+a z)R(-z a-z)R(a
-z-z-z a+z)torus{1F clipped_by{plane{a 0}}}translate V}#end#macro Z(a F T)merge{
P(z+a)P(z-a)R(-z-z-x a)pigment{rgbf 1}hollow interior{media{emission 3-T}}}#end 
Z(-x-x.2x)camera{location z*-10rotate x*90normal{bumps.02scale.05}}

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