title: Shorter way to apply transform to matrix containing vectors in Eigen?
body: <p>Is there a shorter way to apply the transform?</p>
  
  <pre><code>auto vecs = Matrix&lt;float, Dynamic, 3&gt;(); //vector in each row.
  Affine3f transform = ...; // some Affine3 transform
  
  for (int r = 0; r &lt; vecs.rows(); r++) {
      Vector3f v = vecs.row(r);
      v = transform * v;
      vecs.row(r) = v;
  }
  </code></pre>