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diff --git a/synfig-core/tags/synfig_0_61_06/src/synfig/valuenode_segcalctangent.cpp b/synfig-core/tags/synfig_0_61_06/src/synfig/valuenode_segcalctangent.cpp
deleted file mode 100644
index 659f8e5..0000000
--- a/synfig-core/tags/synfig_0_61_06/src/synfig/valuenode_segcalctangent.cpp
+++ /dev/null
@@ -1,187 +0,0 @@
-/* === S Y N F I G ========================================================= */
-/*!	\file valuenode_segcalctangent.cpp
-**	\brief Template File
-**
-**	$Id$
-**
-**	\legal
-**	Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
-**
-**	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_segcalctangent.h"
-#include "valuenode_const.h"
-#include "valuenode_composite.h"
-#include "general.h"
-#include "exception.h"
-#include <ETL/hermite>
-#include <ETL/calculus>
-#include "segment.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_SegCalcTangent::ValueNode_SegCalcTangent(const ValueBase::Type &x):
-	LinkableValueNode(x)
-{
-	if(x!=ValueBase::TYPE_VECTOR)
-		throw Exception::BadType(ValueBase::type_name(x));
-
-	segment_=ValueNode_Composite::create(ValueBase::TYPE_SEGMENT);
-	amount_=ValueNode_Const::create(Real(0.5));
-}
-
-ValueNode_SegCalcTangent*
-ValueNode_SegCalcTangent::create(const ValueBase &x)
-{
-	return new ValueNode_SegCalcTangent(x.get_type());
-}
-
-ValueNode_SegCalcTangent::~ValueNode_SegCalcTangent()
-{
-	unlink_all();
-}
-
-ValueBase
-ValueNode_SegCalcTangent::operator()(Time t)const
-{
-	Segment segment((*segment_)(t).get(Segment()));
-
-	etl::hermite<Vector> curve(segment.p1,segment.p2,segment.t1,segment.t2);
-	etl::derivative< etl::hermite<Vector> > deriv(curve);
-
-#ifdef ETL_FIXED_DERIVATIVE
-	return deriv((*amount_)(t).get(Real()))*(0.5);
-#else
-	return deriv((*amount_)(t).get(Real()))*(-0.5);
-#endif
-
-}
-
-
-String
-ValueNode_SegCalcTangent::get_name()const
-{
-	return "segcalctangent";
-}
-
-String
-ValueNode_SegCalcTangent::get_local_name()const
-{
-	return _("SegCalcTangent");
-}
-
-bool
-ValueNode_SegCalcTangent::check_type(ValueBase::Type type)
-{
-	return type==ValueBase::TYPE_VECTOR;
-}
-
-bool
-ValueNode_SegCalcTangent::set_link_vfunc(int i,ValueNode::Handle x)
-{
-	assert(i==0 || i==1);
-	if(i==0)
-	{
-		segment_=x;
-		signal_child_changed()(i);signal_value_changed()();
-		return true;
-	}
-	if(i==1)
-	{
-		amount_=x;
-		signal_child_changed()(i);signal_value_changed()();
-		return true;
-	}
-	return false;
-}
-
-ValueNode::LooseHandle
-ValueNode_SegCalcTangent::get_link_vfunc(int i)const
-{
-	assert(i==0 || i==1);
-	if(i==0)
-		return segment_;
-	if(i==1)
-		return amount_;
-
-	return 0;
-}
-
-int
-ValueNode_SegCalcTangent::link_count()const
-{
-	return 2;
-}
-
-String
-ValueNode_SegCalcTangent::link_name(int i)const
-{
-	assert(i==0 || i==1);
-	if(i==0)
-		return "segment";
-	if(i==1)
-		return "amount";
-	return String();
-}
-
-String
-ValueNode_SegCalcTangent::link_local_name(int i)const
-{
-	assert(i==0 || i==1);
-	if(i==0)
-		return _("Segment");
-	if(i==1)
-		return _("Amount");
-	return String();
-}
-
-int
-ValueNode_SegCalcTangent::get_link_index_from_name(const String &name)const
-{
-	if(name=="segment")
-		return 0;
-	if(name=="amount")
-		return 1;
-
-	throw Exception::BadLinkName(name);
-}
-
-LinkableValueNode*
-ValueNode_SegCalcTangent::create_new()const
-{
-	return new ValueNode_SegCalcTangent(ValueBase::TYPE_VECTOR);
-}