修改错误

TrackingRos.cpp

@@ -563,7 +563,7 @@ void TrackingRos::ThreadTrackingProcess()
                         marker.color.g = 1.0;
                         marker.color.b = 1.0;
                         marker.lifetime = ros::Duration(0.5);
-                        sendMarkers.markers.append(marker);
+                        sendMarkers.markers.emplace_back(marker);
                         i += 1;
 
                         visualization_msgs::Marker t_marker = {};
@@ -591,7 +591,7 @@ void TrackingRos::ThreadTrackingProcess()
                             obj.obj_id, obj.type, obj.name.c_str(), sqrt(obj.v_x* obj.v_x + obj.v_y * obj.v_y) * 10, obj.license_plate_number.c_str(), obj.color_name.c_str(), obj.frame);
                         t_marker.text = str;
                         //t_marker.text = 'id:{0},type:{1},type_name:{2},v:{3:.2f}m/s,No:{4}\ncolor_name:{5},timestamp:{6}'.format(msg.obj_id, msg.type, msg.name, math.sqrt(msg.v_x * msg.v_x + msg.v_y * msg.v_y) * 10, msg.license_plate_number, msg.color_name, msg.frame)
-                        sendMarkers.markers.append(t_marker);
+                        sendMarkers.markers.emplace_back(t_marker);
                         i += 1
                     }
                 }