[OpenSCAD] sumUp() to Replace Difference() (in most cases)

Ronaldo Persiano rcmpersiano at gmail.com
Thu Oct 6 18:34:18 EDT 2016

I am sorry. You are right. I misunderstood your statement.

>From one point of view, it is interesting that it is possible to add() and
remove() parts in any order inside sumUp(). But this may also make codes
harder to understand. I cannot judge it without trying it anyway.

Although I have not fully grasped the technique you developed I guess it
may be helpful in other contexts.

2016-10-06 19:13 GMT-03:00 pproj <pproj at posteo.de>:

> hmm.. there must be a misunderstanding.
>  i have stated that sumUp() is slower than difference() in complex
> projects (thats its main drawback) and asked if it can be hardcoded to make
> it faster...
> i think we are of the same opinion on that. i believe the cleanliness of
> code, reduction of nesting and thus redundancy by far outweigh the very
> unpleasant fact that i have to wait for several minutes for a complex model
> to render, and this would have been times faster with the messier
> difference()-using code
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