--- a/src/mainwindow.cpp Sat Jan 28 16:30:27 2017 +0200 +++ b/src/mainwindow.cpp Sat Jan 28 17:14:05 2017 +0200 @@ -435,7 +435,7 @@ descr = format ("%1 %2, (", ref->fileInfo()->getDisplayName(), ref->position().toString (true)); for (int i = 0; i < 9; ++i) - descr += format ("%1%2", ref->transformationMatrix()[i], (i != 8) ? " " : ""); + descr += format ("%1%2", ref->transformationMatrix().value(i), (i != 8) ? " " : ""); descr += ')'; break;