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diff --git a/synfig-core/src/synfig/valuenode_atan2.cpp b/synfig-core/src/synfig/valuenode_atan2.cpp
new file mode 100644
index 0000000..c4dd5e7
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+++ b/synfig-core/src/synfig/valuenode_atan2.cpp
@@ -0,0 +1,180 @@
+/* === S Y N F I G ========================================================= */
+/*!	\file valuenode_atan2.cpp
+**	\brief Implementation of the "aTan2" valuenode conversion.
+**
+**	$Id$
+**
+**	\legal
+**	Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+**	Copyright (c) 2007, 2008 Chris Moore
+**
+**	This package is free software; you can redistribute it and/or
+**	modify it under the terms of the GNU General Public License as
+**	published by the Free Software Foundation; either version 2 of
+**	the License, or (at your option) any later version.
+**
+**	This package is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+**	General Public License for more details.
+**	\endlegal
+*/
+/* ========================================================================= */
+
+/* === H E A D E R S ======================================================= */
+
+#ifdef USING_PCH
+#	include "pch.h"
+#else
+#ifdef HAVE_CONFIG_H
+#	include <config.h>
+#endif
+
+#include "valuenode_atan2.h"
+#include "valuenode_const.h"
+#include "general.h"
+
+#endif
+
+/* === U S I N G =========================================================== */
+
+using namespace std;
+using namespace etl;
+using namespace synfig;
+
+/* === M A C R O S ========================================================= */
+
+/* === G L O B A L S ======================================================= */
+
+/* === P R O C E D U R E S ================================================= */
+
+/* === M E T H O D S ======================================================= */
+
+ValueNode_Atan2::ValueNode_Atan2(const ValueBase &value):
+	LinkableValueNode(value.get_type())
+{
+	switch(value.get_type())
+	{
+	case ValueBase::TYPE_ANGLE:
+		set_link("x",ValueNode_Const::create(Angle::cos(value.get(Angle())).get()));
+		set_link("y",ValueNode_Const::create(Angle::sin(value.get(Angle())).get()));
+		break;
+	default:
+		throw Exception::BadType(ValueBase::type_local_name(value.get_type()));
+	}
+
+	DCAST_HACK_ENABLE();
+}
+
+LinkableValueNode*
+ValueNode_Atan2::create_new()const
+{
+	return new ValueNode_Atan2(get_type());
+}
+
+ValueNode_Atan2*
+ValueNode_Atan2::create(const ValueBase &x)
+{
+	return new ValueNode_Atan2(x);
+}
+
+ValueNode_Atan2::~ValueNode_Atan2()
+{
+	unlink_all();
+}
+
+ValueBase
+ValueNode_Atan2::operator()(Time t)const
+{
+	if (getenv("SYNFIG_DEBUG_VALUENODE_OPERATORS"))
+		printf("%s:%d operator()\n", __FILE__, __LINE__);
+
+	return Angle::tan((*y_)(t).get(Real()),
+					  (*x_)(t).get(Real()));
+}
+
+
+String
+ValueNode_Atan2::get_name()const
+{
+	return "atan2";
+}
+
+String
+ValueNode_Atan2::get_local_name()const
+{
+	return _("aTan2");
+}
+
+bool
+ValueNode_Atan2::check_type(ValueBase::Type type)
+{
+	return type==ValueBase::TYPE_ANGLE;
+}
+
+bool
+ValueNode_Atan2::set_link_vfunc(int i,ValueNode::Handle value)
+{
+	assert(i>=0 && i<link_count());
+
+	switch(i)
+	{
+	case 0: CHECK_TYPE_AND_SET_VALUE(x_, ValueBase::TYPE_REAL);
+	case 1: CHECK_TYPE_AND_SET_VALUE(y_, ValueBase::TYPE_REAL);
+	}
+	return false;
+}
+
+ValueNode::LooseHandle
+ValueNode_Atan2::get_link_vfunc(int i)const
+{
+	assert(i>=0 && i<link_count());
+
+	if(i==0)
+		return x_;
+	if(i==1)
+		return y_;
+
+	return 0;
+}
+
+int
+ValueNode_Atan2::link_count()const
+{
+	return 2;
+}
+
+String
+ValueNode_Atan2::link_name(int i)const
+{
+	assert(i>=0 && i<link_count());
+
+	if(i==0)
+		return "x";
+	if(i==1)
+		return "y";
+	return String();
+}
+
+String
+ValueNode_Atan2::link_local_name(int i)const
+{
+	assert(i>=0 && i<link_count());
+
+	if(i==0)
+		return _("X");
+	if(i==1)
+		return _("Y");
+	return String();
+}
+
+int
+ValueNode_Atan2::get_link_index_from_name(const String &name)const
+{
+	if(name=="x")
+		return 0;
+	if(name=="y")
+		return 1;
+
+	throw Exception::BadLinkName(name);
+}