fixing bug in dvs_renderer when there are no events. thx Timo

uzh-rpg · 464bdd5d06e2bca01ce4156d6532b185c08ef59d · guillermogb committed May 24, 2017 · May 24, 2017 · 464bdd5
1 parent ca030f3
commit 464bdd5d06e2bca01ce4156d6532b185c08ef59d
Unified Split

Showing with 4 additions and 1 deletion.

+4 −1 dvs_renderer/src/renderer.cpp
diff --git a/dvs_renderer/src/renderer.cpp b/dvs_renderer/src/renderer.cpp
@@ -115,7 +115,10 @@ void Renderer::eventsCallback(const dvs_msgs::EventArray::ConstPtr& msg)
   if (image_pub_.getNumSubscribers() > 0)
   {
     cv_bridge::CvImage cv_image;
-    cv_image.header.stamp = msg->events[msg->events.size()/2].ts;
+    if (msg->events.size() > 0)
+    {
+      cv_image.header.stamp = msg->events[msg->events.size()/2].ts;
+    }
 
     if (display_method_ == RED_BLUE)
     {