From 2a9e392023c198beaf4dd8959dc00084a93f6a16 Mon Sep 17 00:00:00 2001
From: Jihoon Lee <jihoonlee.in@gmail.com>
Date: Wed, 4 Oct 2017 13:14:59 +0200
Subject: [PATCH] Throttle rviz submap fading warning. (#514)

---
 cartographer_rviz/cartographer_rviz/submaps_display.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cartographer_rviz/cartographer_rviz/submaps_display.cc b/cartographer_rviz/cartographer_rviz/submaps_display.cc
index 04ada82..3b8bb39 100644
--- a/cartographer_rviz/cartographer_rviz/submaps_display.cc
+++ b/cartographer_rviz/cartographer_rviz/submaps_display.cc
@@ -202,7 +202,7 @@ void SubmapsDisplay::update(const float wall_dt, const float ros_dt) {
       }
     }
   } catch (const tf2::TransformException& ex) {
-    ROS_WARN("Could not compute submap fading: %s", ex.what());
+    ROS_WARN_THROTTLE(1., "Could not compute submap fading: %s", ex.what());
   }
   // Update the map frame to fixed frame transform.
   Ogre::Vector3 position;