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geom/plane: correct the sense of coefficient `D'

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This commit is contained in:
Danny Robson 2018-04-23 22:14:05 +10:00
parent 6290f0be93
commit 44d5b655ab
2 changed files with 2 additions and 2 deletions
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2
geom/plane.cpp
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@ -29,7 +29,7 @@ plane<S,T>::plane (point<S,T> base, vector<S,T> normal)
CHECK (is_normalised (normal)); CHECK (is_normalised (normal));
std::copy (std::begin (normal), std::end (normal), std::begin (coefficients)); std::copy (std::begin (normal), std::end (normal), std::begin (coefficients));
coefficients[S] = dot (base, normal); coefficients[S] = -dot (base, normal);
} }

2
geom/plane.hpp
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@ -81,7 +81,7 @@ namespace util::geom {
{ {
auto d = dot ( auto d = dot (
p.coefficients, p.coefficients,
q.template redim<S+1> (-1) q.template redim<S+1> (1)
); );
return d / norm (normal (p)); return d / norm (normal (p));