fn write_rank(&mut self) {
        let rank = self.rank();
        if rank != 4 {
            self.push_to_str(rank as isize - 1);
        }
        self.push_str("OFF\n");
    }
/// Writes the OFF format header.
Writes the OFF format header.
Writes the OFF format header .
fn write_rank(&mut self) {
        let rank = self.rank();
        if rank != 4 {
            self.push_to_str(rank as isize - 1);
        }
        self.push_str("OFF\n");
    }
fn write_rank ( & mut self ) { let rank = self . rank ( ) ; if rank != 4 { self . push_to_str ( rank as isize - 1 ) ; } self . push_str ( " \n " ) ; }
Writes the OFF format header.
Writes the OFF format header .
&mut self
&mut self