1 #include <Eigen/Core> 2 #include <iostream> 3 using namespace Eigen; 4 using namespace std; 5 6 // define a custom template unary functor 7 template<typename Scalar> 8 struct CwiseClampOp { 9 CwiseClampOp(const Scalar& inf, const Scalar& sup) : m_inf(inf), m_sup(sup) {} 10 const Scalar operator()(const Scalar& x) const { return x<m_inf ? m_inf : (x>m_sup ? m_sup : x); } 11 Scalar m_inf, m_sup; 12 }; 13 14 int main(int, char**) 15 { 16 Matrix4d m1 = Matrix4d::Random(); 17 cout << m1 << endl << "becomes: " << endl << m1.unaryExpr(CwiseClampOp<double>(-0.5,0.5)) << endl; 18 return 0; 19 } 20
