[postgis-devel] BOX3D strange behaviour

[Paul Ramsey]

Something strange, I would imagine, but I'm no 3d expert :)

On Fri, Feb 26, 2016 at 3:45 PM, Komяpa <me at komzpa.net> wrote:
> When performong ST_3DIntersection(geom, box3d), will approach with line do
> the thing that's awaited from it clipping geometry by the box, or make
> strange multipoint/multilinestring/EMPTY intersection? :)
>
> пт, 26 февр. 2016 г. в 17:34, Paul Ramsey <pramsey at cleverelephant.ca>:
>>
>> Codacil to this: a linestring involves an lwline and a pointarray, a
>> multipoint involves a multipoint, 2 x point, 2 x pointarray, so
>> there's a minor efficiency in sticking w/ the line.
>>
>> On Thu, Feb 18, 2016 at 1:27 PM, Rémi Cura <remi.cura at gmail.com> wrote:
>> > Exactly,
>> > in the end it's just 2 points.
>> > I personally would prefer to keep it as 2 points,
>> > because I feel a line is semantically more different,
>> > but it amounts to the same thing in the end.
>> >
>> > Cheers,
>> > Rémi-C
>> >
>> > 2016-02-18 11:36 GMT+01:00 Sandro Santilli <strk at keybit.net>:
>> >>
>> >> On Thu, Feb 18, 2016 at 11:02:49AM +0100, Rémi Cura wrote:
>> >> > Using Even trick saves me about 25% time.
>> >> > Good !
>> >>
>> >> Right, it's the same approach of the "BoundingDiagonal",
>> >> only he does it with a 2-members multipoint rather than
>> >> with a 2-vertices linestring.
>> >>
>> >> --strk;
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