jeanlemotan
67 lines
1.3 KiB
C++
67 lines
1.3 KiB
C++
namespace math
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{
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template <class T>
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inline plane<T>::plane()
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: normal(0, 0, 1)
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, offset(0)
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{
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}
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template <class T>
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inline plane<T>::plane(ZUninitialized tag) : normal(tag)
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{
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}
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template <class T>
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inline plane<T>::plane(const vec3<T>& ipoint, const vec3<T>& inormal)
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: normal(inormal)
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, offset(-dot(ipoint, normal))
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{
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TL_PLAIN_ASSERT(is_normalized(inormal));
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}
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template <class T>
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inline plane<T>::plane(const vec3<T>& point1, const vec3<T>& point2, const vec3<T>& point3)
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{
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normal = normalized(cross(point2 - point1, point3 - point1));
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TL_PLAIN_ASSERT(is_normalized(normal));
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offset = -dot(point1, normal);
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}
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template <class T>
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inline bool plane<T>::operator==(const plane<T>& other) const
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{
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return offset == other.offset && normal == other.normal;
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}
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template <class T>
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inline bool plane<T>::operator!=(const plane<T>& other) const
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{
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return !(*this == other);
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}
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template <class T>
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inline vec3<T> plane<T>::get_member_point() const
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{
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return normal * -offset;
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}
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template <class T>
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plane<T>& plane<T>::invert()
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{
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this_t tmp = *this;
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tmp.normal = -normal;
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tmp.offset = -dot(tmp.normal, get_member_point());
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*this = tmp;
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return *this;
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}
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template <class T>
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T plane<T>::signed_distance(const vec3<T>& point) const
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{
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return dot(normal, point) + offset;
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}
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}
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