In article <QXx$oFAnd1p8Ewym@econym.demon.co.uk>,
 Mike Williams <mik### [at] nospamplease> wrote:

> >Perhaps you are confusing contained_by with bounded_by ?
> 
> Perhaps you are confusing contained_by and clipped_by ?

It doesn't sound like it...bounded_by is the feature used to, well, 
bound infinite objects, and based on the description it is the one he 
wants.
The clipped_by feature is for removing parts of an object that are 
outside another object, which doesn't seem to have anything to do with 
this.
The contained_by keyword is only used in isosurfaces, to specify the 
volume in which to test for the surface. It has never been used for 
other objects (except maybe parametric), and wasn't even added until 
after the isosurface patch had been around a while. (previous versions 
reused bounded_by, which caused some problems)

-- 
Christopher James Huff <chr### [at] maccom>
POV-Ray TAG e-mail: chr### [at] tagpovrayorg
TAG web site: http://tag.povray.org/

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