Respect plotbarrier style setting for latex circuit drawers

qiskit/tools/visualization/_circuit_visualization.py

@@ -1325,15 +1325,16 @@ def _build_latex_array(self, aliases=None):
                     raise QISKitError('Error during Latex building: %s' %
                                       str(e))
             elif op['name'] == "barrier":
-                qarglist = [self.qubit_list[i] for i in op['qubits']]
-                if self._style.reverse:
-                    qarglist = list(reversed(qarglist))
-                if aliases is not None:
-                    qarglist = map(lambda x: aliases[x], qarglist)
-                start = self.img_regs[(qarglist[0][0],
-                                       qarglist[0][1])]
-                span = len(op['qubits']) - 1
-                self._latex[start][columns] += " \\barrier{" + str(span) + "}"
+                if self._style.barrier:
+                    qarglist = [self.qubit_list[i] for i in op['qubits']]
+                    if self._style.reverse:
+                        qarglist = list(reversed(qarglist))
+                    if aliases is not None:
+                        qarglist = map(lambda x: aliases[x], qarglist)
+                    start = self.img_regs[(qarglist[0][0],
+                                           qarglist[0][1])]
+                    span = len(op['qubits']) - 1
+                    self._latex[start][columns] += " \\barrier{" + str(span) + "}"
             else:
                 assert False, "bad node data"
 

qiskit/tools/visualization/_qcstyle.py

@@ -64,7 +64,7 @@ def __init__(self):
         self.pimode = False
         self.fold = 20
         self.bundle = False
-        self.barrier = False
+        self.barrier = True
         self.index = False
         self.compress = True
         self.figwidth = -1