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/**
* \file
* \brief Conversion between Bezier control points and SBasis curves
*//*
* Copyright 2006 Nathan Hurst <njh@mail.csse.monash.edu.au>
*
* This library is free software; you can redistribute it and/or
* modify it either under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation
* (the "LGPL") or, at your option, under the terms of the Mozilla
* Public License Version 1.1 (the "MPL"). If you do not alter this
* notice, a recipient may use your version of this file under either
* the MPL or the LGPL.
*
* You should have received a copy of the LGPL along with this library
* in the file COPYING-LGPL-2.1; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
* You should have received a copy of the MPL along with this library
* in the file COPYING-MPL-1.1
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
* OF ANY KIND, either express or implied. See the LGPL or the MPL for
* the specific language governing rights and limitations.
*
*/
#ifndef LIB2GEOM_SEEN_BEZIER_TO_SBASIS_H
#define LIB2GEOM_SEEN_BEZIER_TO_SBASIS_H
#include <2geom/coord.h>
#include <2geom/point.h>
#include <2geom/d2.h>
#include <2geom/sbasis-to-bezier.h>
namespace Geom
{
#if 0
inline SBasis bezier_to_sbasis(Coord const *handles, unsigned order) {
if(order == 0)
return Linear(handles[0]);
else if(order == 1)
return Linear(handles[0], handles[1]);
else
return multiply(Linear(1, 0), bezier_to_sbasis(handles, order-1)) +
multiply(Linear(0, 1), bezier_to_sbasis(handles+1, order-1));
}
template <typename T>
inline D2<SBasis> handles_to_sbasis(T const &handles, unsigned order)
{
double v[2][order+1];
for(unsigned i = 0; i <= order; i++)
for(unsigned j = 0; j < 2; j++)
v[j][i] = handles[i][j];
return D2<SBasis>(bezier_to_sbasis(v[0], order),
bezier_to_sbasis(v[1], order));
}
#endif
template <typename T>
inline
D2<SBasis> handles_to_sbasis(T const& handles, unsigned order)
{
D2<SBasis> sbc;
size_t sz = order + 1;
std::vector<Point> v;
v.reserve(sz);
for (size_t i = 0; i < sz; ++i)
v.push_back(handles[i]);
bezier_to_sbasis(sbc, v);
return sbc;
}
} // end namespace Geom
#endif // LIB2GEOM_SEEN_BEZIER_TO_SBASIS_H
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :
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