Re: John!!!

[P3D William Carter <wc@xxxxxxxxxxxxxxxxxxx>]

Jim Crowell writes:
>...make darn sure the focal length is long enough that the projection is 
>essentially orthographic...

Oops. Oh, yeah.

And:
>Might be best if your surface was covered with thin, high-contrasts lines,
>to give the best possible resolution.  Maybe cylinders (coffee cans, oil
>drums, whatever) with pin-stripes?

Excellent!

About:
>show people _two_ pictures, one with the surface convex & the other
>concave (identical in all other respects) & make them pick which is 
>which.That way it won't matter if there's a preference for seeing your 
>pictures as convex, say.

I thought I had that covered? Yet,
"My hearing aid's good. My dentures are fine. My glasses work well. But, I 
sure miss my mind."

-- 
                     mailto:wc@xxxxxxxxxxxx
    37deg 39.09'N x 122deg 29.56'W x 90'MLLW







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