Tim Cook <z99### [at] bellsouthnet> wrote:
>
> It's the difference between whether you're introduced to 3D via CAD or
> via 'math'.  Architectural design uses XY as the floorplan plane, so Z
> becomes up, while math uses cartesian coordinates XY as relative to
> view-plane.  Clearly, the architectural method is superior, (wink) as it
> isn't dependent on individual point of view.
>

Indeed, or in the case of these old eyes; introduced by
Technical/Engineering drawing. Using paper and pencil (2H), T-square and
setsquare.


Stephen

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