libcruft-util/geom/aabb.ipp

44 lines
1.2 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>
*/
#if defined(__UTIL_GEOM_AABB_IPP)
#error
#endif
#define __UTIL_GEOM_AABB_IPP
#include "sample.hpp"
#include <random>
///////////////////////////////////////////////////////////////////////////////
namespace util::geom {
template <size_t S, typename T, typename G>
struct sampler<S,T,aabb,G> {
static point<S,T>
fn (aabb<S,T> b, G &g)
{
std::uniform_real_distribution<T> d;
point<S,T> p;
std::generate (p.begin (), p.end (), [&] (void) { return d (g); });
return p * (b.p1 - b.p0) + b.p0.template as<util::vector> ();
}
};
}