- Real th = gh_scm2double (sp->get_elt_property ("thickness")) * lt ;
- Real h = gh_scm2double (sp->get_elt_property ("height"));
- Real l = gh_scm2double (sp->get_elt_property ("minimum-length"));
+ Real th = gh_scm2double (sp->get_grob_property ("thickness")) * lt ;
+ Real h = gh_scm2double (sp->get_grob_property ("height"));
+ Real l = gh_scm2double (sp->get_grob_property ("minimum-length"));