libcruft-util/geom/sample.ipp

46 lines
1.1 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_SAMPLE_IPP)
#error
#endif
#define __UTIL_GEOM_SAMPLE_IPP
#include "ops.hpp"
namespace util::geom {
// use rejection sampling by default
template <
size_t S,
typename T,
template <size_t,typename> class K,
typename G
>
point<S,T>
sampler<S,T,K,G>::fn (K<S,T> k, G &g)
{
auto b = bounds (k);
while (true) {
auto p = sample (b, g);
if (intersects (k, p))
return p;
}
}
}