Danny Robson
d3f434b523
The coordinate system was unable to support types that prohibited redim or retype operations. Additionally, the `tags' type used for providing named data parameters was unwiedly. We remove much of the dependance on template template parameters in the defined operations and instead define these in terms of a template specialisation of is_coord. The tag types were replaced with direct specialisation of the `store' struct by the primary type, and passing this type through use of the CRTP.
166 lines
4.0 KiB
C++
166 lines
4.0 KiB
C++
/*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
* Copyright 2015 Danny Robson <danny@nerdcruft.net>
|
|
*/
|
|
|
|
|
|
#include "aabb.hpp"
|
|
|
|
#include "iostream.hpp"
|
|
#include "../coord/iostream.hpp"
|
|
#include "../debug.hpp"
|
|
|
|
using util::geom::AABB;
|
|
|
|
//-----------------------------------------------------------------------------
|
|
template <size_t S, typename T>
|
|
AABB<S,T>::AABB (point<S,T> _p0, point<S,T> _p1):
|
|
p0 (_p0),
|
|
p1 (_p1)
|
|
{
|
|
debug::sanity (*this);
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
template <size_t S, typename T>
|
|
T
|
|
AABB<S,T>::diameter (void) const
|
|
{
|
|
return magnitude ().diameter ();
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
template <size_t S, typename T>
|
|
util::extent<S,T>
|
|
AABB<S,T>::magnitude (void) const
|
|
{
|
|
extent<S,T> out;
|
|
for (size_t i = 0; i < S; ++i)
|
|
out[i] = p1[i] - p0[i];
|
|
return out;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
template <size_t S, typename T>
|
|
bool
|
|
AABB<S,T>::overlaps (point<S,T> p) const
|
|
{
|
|
for (size_t i = 0; i < S; ++i)
|
|
if (p0[i] > p[i] || p1[i] < p[i])
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
template <size_t S, typename T>
|
|
util::point<S,T>
|
|
AABB<S,T>::closest (point<S,T> q) const
|
|
{
|
|
point<S,T> res;
|
|
|
|
for (size_t i = 0; i < S; ++i)
|
|
res[i] = q[i] < p0[i] ? p0[i] :
|
|
q[i] > p1[i] ? p1[i] :
|
|
q[i];
|
|
|
|
return res;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
template <size_t S, typename T>
|
|
void
|
|
AABB<S,T>::cover (point<S,T> p)
|
|
{
|
|
p0 = min (p, p0);
|
|
p1 = max (p, p1);
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
template <size_t S, typename T>
|
|
AABB<S,T>
|
|
AABB<S,T>::operator+ (vector<S,T> v) const
|
|
{
|
|
return { p0 + v, p1 + v };
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
template <size_t S, typename T>
|
|
AABB<S,T>
|
|
AABB<S,T>::operator- (vector<S,T> v) const
|
|
{
|
|
return { p0 - v, p1 - v };
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
template <size_t S, typename T>
|
|
bool
|
|
AABB<S,T>::operator== (const AABB<S,T> rhs) const
|
|
{
|
|
return rhs.p0 == p0 && rhs.p1 == p1;
|
|
}
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
namespace util::debug {
|
|
template <size_t S, typename T>
|
|
struct validator<AABB<S,T>> {
|
|
static bool is_valid (const AABB<S,T> &b)
|
|
{
|
|
for (size_t i = 0; i < S; ++i)
|
|
if (b.p1[i] < b.p0[i])
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
};
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
template <size_t S, typename T>
|
|
std::ostream&
|
|
util::geom::operator<< (std::ostream &os, util::geom::AABB<S,T> b)
|
|
{
|
|
os << "AABB(" << b.p0 << ", " << b.p1 << ")";
|
|
return os;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
#define INSTANTIATE_S_T(S,T) \
|
|
namespace util::geom { template struct AABB<S,T>; } \
|
|
template bool util::debug::is_valid (const AABB<S,T>&); \
|
|
template std::ostream& util::geom::operator<< (std::ostream&, AABB<S,T>);
|
|
|
|
#define INSTANTIATE(T) \
|
|
INSTANTIATE_S_T(2,T) \
|
|
INSTANTIATE_S_T(3,T)
|
|
|
|
INSTANTIATE( int32_t)
|
|
INSTANTIATE( int64_t)
|
|
INSTANTIATE(uint32_t)
|
|
INSTANTIATE(uint64_t)
|
|
INSTANTIATE(float)
|
|
INSTANTIATE(double)
|