Add feature to show the direction of CX gate

example : (1, ['cx_{q0, q1}'])

qiskit_class_converter/converters/quantum_circuit_to_matrix.py

@@ -43,7 +43,10 @@ def actual_convert_action(self):
         for layer in dag.layers():
             circuit = self.qiskit.converters.dag_to_circuit(layer['graph'])
             matrix_list["gate"].append(self.qiskit.quantum_info.Operator(circuit).to_matrix())
-            matrix_list["name"].append((layer_index, [_inst[0].name for _inst in circuit.data]))
+            matrix_list["name"].append((layer_index, [_inst[0].name + "_{q" + str(_inst.qubits[0].index) + ", q" +
+                                                      str(_inst.qubits[1].index) + "}"
+                                                      if _inst[0].name == "cx"
+                                                      else _inst[0].name for _inst in circuit.data]))
             layer_index += 1
         matrix_list["result"] = self.qiskit.quantum_info.Operator(self.input_value).to_matrix()
         if self.option.get("print", False) == "raw":