message: Slight comments
diff: @@ -822,11 +822,13 @@ int main (int argc, char *argv[])
  ElementTransformation *T = mesh->GetElementTransformation(i);
  T->SetIntPoint(&Geometries.GetCenter(geom));
  Geometries.JacToPerfJac(geom, T->Jacobian(), J);
  + // Unscaled determinate
  attr(i) = J.Det();
  for (int j = 0; j < J.Width(); j++)
  {
  Vector col;
  J.GetColumnReference(j,col);
  + // Scale to [-1,1]
  attr(i) /= col.Norml2();
  }
  }
  