CODEWITHSUNDEEP
eigen
Hailiang Zhang
Hailiang Zhang

Reputation: 18870

How to translate a matrix in using Eigen

I have a 3*3 matrix, and want to translate each column.

#include <Eigen/geometry>

using namespace Eigen;

int main()
{
  Translation3d tr(1,2,3);
  Matrix3d m; m<<1,2,3,4,5,6,7,8,9;
  // m = tr * m; //will not work
}

Don't have a clue from the Eigen manual...

Upvotes: 0

Views: 98

Answers (1)

user2658323
user2658323

Reputation: 553

The manual says Translation is not to be used directly.

For transforms, you will likely want Affine3d, but note that your matrix m is not a homogeneus matrix, so you either change it to be 4x4 or use another Affine3d object.

Upvotes: 1

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