Fix mesh visibility on pick animations.

(caused by incorrectly overloaded methods)

simgear/scene/model/SGPickAnimation.cxx

@@ -371,12 +371,12 @@ osg::StateSet* sharedHighlightStateSet()
 }
 
 void
-SGPickAnimation::apply(simgear::SGTransientModelData &modelData)
+SGPickAnimation::apply(osg::Group& group)
 {
   if (_objectNames.empty() && _proxyNames.empty()) {
     return;
   }
-  osg::Group& group = *modelData.getNode()->asGroup();
+
   group.traverse(*this);
   
   // iterate over all group children

simgear/scene/model/SGPickAnimation.hxx

@@ -38,8 +38,8 @@ public:
   SGPickAnimation(simgear::SGTransientModelData &modelData);
     
   // override so we can treat object-name specially
-  virtual void apply(simgear::SGTransientModelData &modelData);
-    
+  virtual void apply(osg::Group& group);
+
   void apply(osg::Node* node);
 protected:
 

simgear/scene/model/animation.cxx

@@ -490,13 +490,13 @@ SGAnimation::animate(simgear::SGTransientModelData &modelData)
     anim.apply(modelData);
   } else if (type == "pick") {
     SGPickAnimation anim(modelData);
-    anim.apply(modelData);
+    anim.apply(modelData.getNode());
   } else if (type == "knob") {
     SGKnobAnimation anim(modelData);
-    anim.apply(modelData);
+    anim.apply(modelData.getNode());
   } else if (type == "slider") {
     SGSliderAnimation anim(modelData);
-    anim.apply(modelData);
+    anim.apply(modelData.getNode());
   } else if (type == "range") {
     SGRangeAnimation anim(modelData);
     anim.apply(modelData);