+void Track::Loader::slope(float s)
+{
+ tilt(atan(s/obj.type.get_path_length(0)));
+}
+
+void Track::Loader::tilt(float t)
+{
+ if(obj.links.size()!=2)
+ return;
+
+ obj.tilt = Angle::from_radians(t);
+ obj.slope = tan(t)*obj.type.get_path_length(0);
+}
+