When Joint::positionInParentFrame changes, set Device::upToDate_ to false.

include/hpp/model/joint.hh

@@ -177,10 +177,7 @@ namespace hpp {
 	return positionInParentFrame_;
       }
       /// Set position of joint in parent frame
-      void positionInParentFrame (const Transform3f& p)
-      {
-	positionInParentFrame_ = p;
-      }
+      void positionInParentFrame (const Transform3f& p);
       ///\}
 
       /// \name Bounds

src/joint.cc

@@ -107,6 +107,13 @@ namespace hpp {
       robot->computeMass ();
     }
 
+    void Joint::positionInParentFrame (const Transform3f& p)
+    {
+      DevicePtr_t r = robot_.lock ();
+      if (r) r->upToDate_ = false;
+      positionInParentFrame_ = p;
+    }
+
     void Joint::isBounded (size_type rank, bool bounded)
     {
       configuration_->isBounded (rank, bounded);