class_FixedBlock.cpp
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1 #include <Eigen/Core>
2 #include <iostream>
3 using namespace Eigen;
4 using namespace std;
5 
6 template<typename Derived>
9 {
10  return Eigen::Block<Derived, 2, 2>(m.derived(), 0, 0);
11 }
12 
13 template<typename Derived>
16 {
17  return Eigen::Block<const Derived, 2, 2>(m.derived(), 0, 0);
18 }
19 
20 int main(int, char**)
21 {
22  Matrix3d m = Matrix3d::Identity();
23  cout << topLeft2x2Corner(4*m) << endl; // calls the const version
24  topLeft2x2Corner(m) *= 2; // calls the non-const version
25  cout << "Now the matrix m is:" << endl << m << endl;
26  return 0;
27 }
Matrix3f m
Namespace containing all symbols from the Eigen library.
Definition: jet.h:637
Definition: Half.h:150
Eigen::Block< Derived, 2, 2 > topLeft2x2Corner(MatrixBase< Derived > &m)
Expression of a fixed-size or dynamic-size block.
Definition: Block.h:103
int main(int, char **)
Base class for all dense matrices, vectors, and expressions.
Definition: MatrixBase.h:48


gtsam
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autogenerated on Sat May 8 2021 02:41:47