bind the sky disable cutoff distance to a property

[flightgear.git] / src / Instrumentation / gps.cxx

diff --git a/src/Instrumentation/gps.cxx b/src/Instrumentation/gps.cxx
index f0ecf6f0486bfa960d18498d3bbc78cdfefbd2d7..a7cd4ab80fd20a82e03dc5dede4f7ddbefaccfc4 100644 (file)
--- a/src/Instrumentation/gps.cxx
+++ b/src/Instrumentation/gps.cxx
@@ -29,6 +29,7 @@
 #include <simgear/sg_inlines.h>
 #include <simgear/math/sg_geodesy.hxx>
 #include <simgear/structure/exception.hxx>
+#include <simgear/scene/util/OsgMath.hxx>
 
 using std::auto_ptr;
 using std::string;
@@ -332,10 +333,11 @@ void
 GPS::bind()
 {
   _config.bind(this, _gpsNode->getChild("config", 0, true));
+
 // basic GPS outputs
   tie(_gpsNode, "selected-course-deg", SGRawValueMethods<GPS, double>
     (*this, &GPS::getSelectedCourse, &GPS::setSelectedCourse));
-  
+
   tie(_gpsNode, "desired-course-deg", SGRawValueMethods<GPS, double>
     (*this, &GPS::getDesiredCourse, NULL));
   _desiredCourseNode = _gpsNode->getChild("desired-course-deg", 0, true);
@@ -352,7 +354,7 @@ GPS::bind()
   tie(_gpsNode, "indicated-ground-speed-kt", SGRawValueMethods<GPS, double>
     (*this, &GPS::getGroundspeedKts, NULL));
   
-// command system    
+// command system
   tie(_gpsNode, "mode", SGRawValueMethods<GPS, const char*>(*this, &GPS::getMode, NULL));
   tie(_gpsNode, "command", SGRawValueMethods<GPS, const char*>(*this, &GPS::getCommand, &GPS::setCommand));
     
@@ -405,10 +407,7 @@ GPS::bind()
 void
 GPS::unbind()
 {
-  for (unsigned int t=0; t<_tiedNodes.size(); ++t) {
-    _tiedNodes[t]->untie();
-  }
-  _tiedNodes.clear();
+  _tiedProperties.Untie();
 }
 
 void
@@ -611,12 +610,11 @@ void GPS::updateReferenceNavaid(double dt)
   if (!_ref_navaid_set) {
     _ref_navaid_elapsed += dt;
     if (_ref_navaid_elapsed > 5.0) {
-      _ref_navaid_elapsed = 0.0;
 
       FGPositioned::TypeFilter vorFilter(FGPositioned::VOR);
       FGPositionedRef nav = FGPositioned::findClosest(_indicated_pos, 400.0, &vorFilter);
       if (!nav) {
-        SG_LOG(SG_INSTR, SG_INFO, "GPS couldn't find a reference navid");
+        SG_LOG(SG_INSTR, SG_INFO, "GPS couldn't find a reference navaid");
         _ref_navaid_id_node->setStringValue("");
         _ref_navaid_name_node->setStringValue("");
         _ref_navaid_bearing_node->setDoubleValue(0.0);
@@ -636,6 +634,10 @@ void GPS::updateReferenceNavaid(double dt)
       }
       
       _ref_navaid = nav;
+      // reset elapsed time (do not do that before updating the properties above, since their
+      // listeners may request another update (_ref_navaid_elapsed = 9999), which results in
+      // excessive load (FGPositioned::findClosest called in every update loop...)
+      _ref_navaid_elapsed = 0.0; 
     }
   }