[metapost] Re: envelope proposal 4

[Taco Hoekwater]

Larry Siebenmann wrote:

> Quiery: Could one arrange to get a warning in the logfile 
> rather then an error, in case inadvertantly one uses the envelope 
> function with a pen that is not polygonal?  Suggestion: in 
> that case return the trivial path (0,0) of length 0 rather than 
> generating an error.  

Something like that will certainly be available, maybe using an
error that can be suppressed through a switch. I always prefer it
if errors are surpressable (if they are not absolutely fatal ..).
When we get close to actual implementation, there will be some more
talk on this subject.

Taco