Re: Ggnuplot-beta@lists.sourceforge.netnuplot crashing for "hidden3d undefined" ?

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Thomas Sefzick wrote:

> the macros 'GET_MIN' and 'GET_MAX' should be different for checking
> min or max values in x- and y- and for checking min or max values in
> z-direction.

No.  At the point in the algorithm where these are used, x, y and z have 
already been turned into view coordinates.  They are checked against the 
view frustum,

> who introduced the 'assert' statements into the 'GET_MIN' and 'GET_MAX'
> macros and why?

I did, for the reason assert() is pretty much always used: to ensure 
that worse, much harder to find problems don't appear further down the 
processing pipeline --- you did mention segfaults and strange 
wrap-around artifacts earlier...