45 lines
1.3 KiB
C++
45 lines
1.3 KiB
C++
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/*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Copyright 2015 Danny Robson <danny@nerdcruft.net>
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*/
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#include "cylinder.hpp"
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using util::geom::cylinder;
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///////////////////////////////////////////////////////////////////////////////
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template <size_t S, typename T>
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bool
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cylinder<S,T>::includes (util::point<S,T> p) const
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{
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auto ab = b - a;
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auto pa = p - a;
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auto l = dot (ab, pa);
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if (l < 0 || l > ab.magnitude2 ())
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return false;
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auto d = dot (pa, pa) - l * l * ab.magnitude2 ();
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if (d > radius * radius)
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return false;
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return true; // d
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}
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///////////////////////////////////////////////////////////////////////////////
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template struct util::geom::cylinder<2,float>;
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template struct util::geom::cylinder<3,float>;
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