code: public void setTranslation(Tuple2D<?> translation) {
  		assert translation != null : AssertMessages.notNullParameter();
  		this.m02 = translation.getX();
  		this.m12 = translation.getY();
  	}
docs: Set the position.
  
  <p>This function changes only the elements of
  the matrix related to the translation (m02,
  m12). The scaling and the shearing are not changed.
  
  <p>After a call to this function, the matrix will
  contains (? means any value):
  <pre>
  [   ?    ?    t.x   ]
  [   ?    ?    t.y   ]
  [   ?    ?    ?     ]
  </pre>
  
  @param translation the translation.
  @see #makeTranslationMatrix(double, double)