From 5a2db79fc356f2754cffbc0b293ba8ae5a1feeeb Mon Sep 17 00:00:00 2001
From: Yutaka Takaoka <yutaka.takaoka@tri.global>
Date: Wed, 16 Aug 2017 02:49:56 -0700
Subject: [PATCH] Add flag to start first trajectory. (#482)

---
 cartographer_ros/cartographer_ros/node_main.cc | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/cartographer_ros/cartographer_ros/node_main.cc b/cartographer_ros/cartographer_ros/node_main.cc
index aa0fed7..9106820 100644
--- a/cartographer_ros/cartographer_ros/node_main.cc
+++ b/cartographer_ros/cartographer_ros/node_main.cc
@@ -28,6 +28,9 @@ DEFINE_string(configuration_basename, "",
               "Basename, i.e. not containing any directory prefix, of the "
               "configuration file.");
 DEFINE_string(map_filename, "", "If non-empty, filename of a map to load.");
+DEFINE_bool(
+    start_trajectory_with_default_topics, true,
+    "Enable to immediately start the first trajectory with default topics.");
 
 namespace cartographer_ros {
 namespace {
@@ -45,7 +48,10 @@ void Run() {
   if (!FLAGS_map_filename.empty()) {
     node.LoadMap(FLAGS_map_filename);
   }
-  node.StartTrajectoryWithDefaultTopics(trajectory_options);
+
+  if (FLAGS_start_trajectory_with_default_topics) {
+    node.StartTrajectoryWithDefaultTopics(trajectory_options);
+  }
 
   ::ros::spin();