X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FMain%2Fviewer.cxx;h=57e60f48110007c8eff18f06cd0f8fc05f2271b9;hb=38226af24ec01e8f0a20d7fd73ef838a69f6ef25;hp=a61198d666c409d5e72c85e110b834e85bea2cb6;hpb=95a5326c4e055f72fb12932ade410351a175f7a5;p=flightgear.git

diff --git a/src/Main/viewer.cxx b/src/Main/viewer.cxx
index a61198d66..57e60f481 100644
--- a/src/Main/viewer.cxx
+++ b/src/Main/viewer.cxx
@@ -289,10 +289,10 @@ void
 FGViewer::setHeadingOffset_deg (double heading_offset_deg)
 {
   _dirty = true;
-  if (_at_model && (_offset_m.x() == 0.0)&&(_offset_m.y() == 0.0))
+  if (_at_model && (_offset_m.x() == 0.0)&&(_offset_m.z() == 0.0))
   {
-      /* avoid optical effects (e.g. rotating sky) when looking at something
-       * with heading offsets x==y==0 (view heading cannot change). */
+      /* avoid optical effects (e.g. rotating sky) when "looking at" with
+       * heading offsets x==z==0 (view heading cannot change). */
       _heading_offset_deg = 0.0;
   }
   else
@@ -324,10 +324,10 @@ void
 FGViewer::setGoalHeadingOffset_deg (double goal_heading_offset_deg)
 {
   _dirty = true;
-  if (_at_model && (_offset_m.x() == 0.0)&&(_offset_m.y() == 0.0))
+  if (_at_model && (_offset_m.x() == 0.0)&&(_offset_m.z() == 0.0))
   {
-      /* avoid optical effects (e.g. rotating sky) when looking at something
-       * with heading offsets x==y==0 (view heading cannot change). */
+      /* avoid optical effects (e.g. rotating sky) when "looking at" with
+       * heading offsets x==z==0 (view heading cannot change). */
       _goal_heading_offset_deg = 0.0;
       return;
   }