70     normal() = n;  in Hyperplane()
81     normal() = n;  in Hyperplane()
91     result.normal() = (p1 - p0).unitOrthogonal();  in Through()
92     result.offset() = -p0.dot(result.normal());  in Through()
104     result.normal() = v0.cross(v1);  in Through()
105     RealScalar norm = result.normal().norm();  in Through()
110       result.normal() = svd.matrixV().col(2);  in Through()
113       result.normal() /= norm;  in Through()
114     result.offset() = -p0.dot(result.normal());  in Through()
125     normal() = parametrized.direction().unitOrthogonal();  in Hyperplane()
126     offset() = -parametrized.origin().dot(normal());  in Hyperplane()
137     m_coeffs /= normal().norm();  in normalize()
143   inline Scalar signedDistance(const VectorType& p) const { return normal().dot(p) + offset(); }  in signedDistance()
152 …inline VectorType projection(const VectorType& p) const { return p - signedDistance(p) * normal();…  in projection()
157 …inline ConstNormalReturnType normal() const { return ConstNormalReturnType(m_coeffs,0,0,dim(),1); }  in normal()  function
162   inline NormalReturnType normal() { return NormalReturnType(m_coeffs,0,0,dim(),1); }  in normal()  function
221       normal() = mat.inverse().transpose() * normal();
223       normal() = mat * normal();
243     offset() -= normal().dot(t.translation());