CustomizingEigen_Inheritance.cpp
68bb631292e1master

CustomizingEigen_Inheritance.cpp
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			#include <Eigen/Core>
			#include <iostream>

			class MyVectorType : public Eigen::VectorXd
			{
			public:
			MyVectorType(void):Eigen::VectorXd() {}

			// This constructor allows you to construct MyVectorType from Eigen expressions
			template<typename OtherDerived>
			MyVectorType(const Eigen::MatrixBase<OtherDerived>& other)
			: Eigen::VectorXd(other)
			{ }

			// This method allows you to assign Eigen expressions to MyVectorType
			template<typename OtherDerived>
			MyVectorType& operator=(const Eigen::MatrixBase <OtherDerived>& other)
			{
			this->Eigen::VectorXd::operator=(other);
			return *this;
			}
			};

			int main()
			{
			MyVectorType v = MyVectorType::Ones(4);
			v(2) += 10;
			v = 2 * v;
			std::cout << v.transpose() << std::endl;
			}