- double w = robust_scm2double (me->get_grob_property ("zigzag-width"), 1)*staff_space;
- double l = robust_scm2double ( me->get_grob_property ("zigzag-length"), 1)* w;
- double h = l>w/2 ? sqrt(l*l-w*w/4) : 0;
+ double w = robust_scm2double (me->get_property ("zigzag-width"), 1)*staff_space;
+ double l = robust_scm2double ( me->get_property ("zigzag-length"), 1)* w;
+ double h = l>w/2 ? sqrt (l*l-w*w/4) : 0;