def _read_opdist(self, f):
""" Read the out-of-plane distance parameters """
self.oopdist_list = OutOfPlaneDistList()
# Eat the next 3 lines
f.readline()
f.readline()
f.readline()
line = f.readline()
for i in range(self.pointers['nopdist']):
try:
int(line[0:6])
at1 = int(line[9:15]) - 1
at2 = int(line[15:21]) - 1
at3 = int(line[21:27]) - 1
at4 = int(line[27:33]) - 1
self.oopdist_list.add(self.atom_list[at1], self.atom_list[at2],
self.atom_list[at3], self.atom_list[at4],
line[42:52])
except ValueError:
raise TinkerError('Error parsing out-of-plane distance term')
line = f.readline()
