Geometry Boost List: [ggl] box/box clipping

Subject: [ggl] box/box clipping
From: Barend Gehrels (barend.gehrels)
Date: 2010-12-29 04:53:04

Op 29-12-2010 8:51, Arash Partow schreef:
> On 28/12/2010 11:00 PM, barend wrote:
>> If this all is possible, with or without is_range (it probably is), the
>> function would look like
>> bool intersection(Box const&  b1, Box const&  b2, Box&  clipped), so the
>> function you proposed but with the old name...
>>
>
> What if one only wants to know if the boxes intersect? that check if
> done for AABB's is _far cheaper_ than actually constructing the
> intersection box itself(and far more common). In that scenario what
> would the function look like?
>

The user can call the function intersects then.

template <typename Geometry1, typename Geometry2>
bool intersects(Geometry2 const& a, Geometry2 const& b)

Or ! disjoint, which is similar.

Regards, Barend