Where is the problem in using a difference() operation, which was indeed
introduced to get along without negation?
There is absolutely no problem, especially since I stopped using OpenSCAD.
Best regards,
Piotr Wyderski
2017-12-08 18:00 GMT+01:00 Parkinbot rudolf@parkinbot.com:
The real power comes from the ability to combine both positive and
negative
volumes within a single module.
module ball_hole() {
union { negative() sphere(r=1, center=true);
cube(0.1, center=true);
}
}
I would say, the real power comes from using the appropriate Boolean
operation:
module ball_hole()
difference { cube(0.1, center=true); sphere(r=1, center=true); }
> Where is the problem in using a difference() operation, which was indeed
> introduced to get along *without* negation?
There is absolutely no problem, especially since I stopped using OpenSCAD.
Best regards,
Piotr Wyderski
2017-12-08 18:00 GMT+01:00 Parkinbot <rudolf@parkinbot.com>:
> Piotr Wyderski wrote
> > The real power comes from the ability to combine both positive and
> > negative
> > volumes within a single module.
> >
> > module ball_hole() {
> >
> > union { negative() sphere(r=1, center=true);
> > cube(0.1, center=true);
> > }
> > }
>
> I would say, the real power comes from using the appropriate Boolean
> operation:
>
>
> > module ball_hole()
> > difference { cube(0.1, center=true); sphere(r=1, center=true); }
>
> A negative object will exend to infinite. It can't be rendered and will
> obviously create a bag full of problems if used as operand in the Boolean
> operations difference() and union(), while just intersection is save.
> Where is the problem in using a difference() operation, which was indeed
> introduced to get along *without* negation?
>
>
>
>
>
> --
> Sent from: http://forum.openscad.org/
>
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