01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould/**
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould * \file
40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński * \brief Conversion between SBasis and Bezier basis polynomials
40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński *//*
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould * Authors:
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould * ? <?@?.?>
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould *
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould * Copyright ?-? authors
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould *
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould * This library is free software; you can redistribute it and/or
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould * modify it either under the terms of the GNU Lesser General Public
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould * License version 2.1 as published by the Free Software Foundation
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould * (the "LGPL") or, at your option, under the terms of the Mozilla
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould * Public License Version 1.1 (the "MPL"). If you do not alter this
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould * notice, a recipient may use your version of this file under either
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould * the MPL or the LGPL.
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould *
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould * You should have received a copy of the LGPL along with this library
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould * in the file COPYING-LGPL-2.1; if not, write to the Free Software
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould * You should have received a copy of the MPL along with this library
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould * in the file COPYING-MPL-1.1
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould *
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould * The contents of this file are subject to the Mozilla Public License
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould * Version 1.1 (the "License"); you may not use this file except in
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould * compliance with the License. You may obtain a copy of the License at
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould * http://www.mozilla.org/MPL/
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould *
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould * OF ANY KIND, either express or implied. See the LGPL or the MPL for
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould * the specific language governing rights and limitations.
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould *
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould */
01d27eab5fca2dcb8e883011f8be77ae6b78a11cTed Gould
76addc201c409e81eaaa73fe27cc0f79c4db097cKrzysztof Kosiński#ifndef LIB2GEOM_SEEN_SBASIS_TO_BEZIER_H
76addc201c409e81eaaa73fe27cc0f79c4db097cKrzysztof Kosiński#define LIB2GEOM_SEEN_SBASIS_TO_BEZIER_H
981b809bc6ed10a21e89444d9447e5475801874fjohanengelen
8001ba81cb851b38d86650a2fef5817facffb763johanengelen#include <2geom/d2.h>
76addc201c409e81eaaa73fe27cc0f79c4db097cKrzysztof Kosiński#include <2geom/pathvector.h>
981b809bc6ed10a21e89444d9447e5475801874fjohanengelen
6bc0b25077dcb0cce5dea357de5bab735babe891johanengelen#include <vector>
6bc0b25077dcb0cce5dea357de5bab735babe891johanengelen
6bc0b25077dcb0cce5dea357de5bab735babe891johanengelennamespace Geom {
6bc0b25077dcb0cce5dea357de5bab735babe891johanengelen
4a93cef85191e06598c4f196398d3c383610b645Johan Engelenclass PathBuilder;
4a93cef85191e06598c4f196398d3c383610b645Johan Engelen
76addc201c409e81eaaa73fe27cc0f79c4db097cKrzysztof Kosińskivoid sbasis_to_bezier (Bezier &bz, SBasis const &sb, size_t sz = 0);
76addc201c409e81eaaa73fe27cc0f79c4db097cKrzysztof Kosińskivoid sbasis_to_bezier (D2<Bezier> &bz, D2<SBasis> const &sb, size_t sz = 0);
6bc0b25077dcb0cce5dea357de5bab735babe891johanengelenvoid sbasis_to_bezier (std::vector<Point> & bz, D2<SBasis> const& sb, size_t sz = 0);
c8589a6c7367d09fa756755cef0dd448c7328a71Johan B. C. Engelenvoid sbasis_to_cubic_bezier (std::vector<Point> & bz, D2<SBasis> const& sb);
6bc0b25077dcb0cce5dea357de5bab735babe891johanengelenvoid bezier_to_sbasis (SBasis & sb, Bezier const& bz);
6bc0b25077dcb0cce5dea357de5bab735babe891johanengelenvoid bezier_to_sbasis (D2<SBasis> & sb, std::vector<Point> const& bz);
4a93cef85191e06598c4f196398d3c383610b645Johan Engelenvoid build_from_sbasis(PathBuilder &pb, D2<SBasis> const &B, double tol, bool only_cubicbeziers);
6bc0b25077dcb0cce5dea357de5bab735babe891johanengelen
6bc0b25077dcb0cce5dea357de5bab735babe891johanengelen#if 0
981b809bc6ed10a21e89444d9447e5475801874fjohanengelen// this produces a degree k bezier from a degree k sbasis
ed0798e33e14e86b60f8cd254d7131f9d83ba8c0johanengelenBezier
981b809bc6ed10a21e89444d9447e5475801874fjohanengelensbasis_to_bezier(SBasis const &B, unsigned q = 0);
981b809bc6ed10a21e89444d9447e5475801874fjohanengelen
e6bdf746e2d9e775704a475a29cc1bb167ec271cjohanengelen// inverse
e6bdf746e2d9e775704a475a29cc1bb167ec271cjohanengelenSBasis bezier_to_sbasis(Bezier const &B);
e6bdf746e2d9e775704a475a29cc1bb167ec271cjohanengelen
e6bdf746e2d9e775704a475a29cc1bb167ec271cjohanengelen
981b809bc6ed10a21e89444d9447e5475801874fjohanengelenstd::vector<Geom::Point>
981b809bc6ed10a21e89444d9447e5475801874fjohanengelensbasis_to_bezier(D2<SBasis> const &B, unsigned q = 0);
6bc0b25077dcb0cce5dea357de5bab735babe891johanengelen#endif
6bc0b25077dcb0cce5dea357de5bab735babe891johanengelen
981b809bc6ed10a21e89444d9447e5475801874fjohanengelen
76addc201c409e81eaaa73fe27cc0f79c4db097cKrzysztof KosińskiPathVector path_from_piecewise(Piecewise<D2<SBasis> > const &B, double tol, bool only_cubicbeziers = false);
981b809bc6ed10a21e89444d9447e5475801874fjohanengelen
adcdea28c696d67996a7dda19cf9863aee48e022johanengelenPath path_from_sbasis(D2<SBasis> const &B, double tol, bool only_cubicbeziers = false);
adcdea28c696d67996a7dda19cf9863aee48e022johanengeleninline Path cubicbezierpath_from_sbasis(D2<SBasis> const &B, double tol)
6bc0b25077dcb0cce5dea357de5bab735babe891johanengelen { return path_from_sbasis(B, tol, true); }
6bc0b25077dcb0cce5dea357de5bab735babe891johanengelen
6bc0b25077dcb0cce5dea357de5bab735babe891johanengelen} // end namespace Geom
6bc0b25077dcb0cce5dea357de5bab735babe891johanengelen
981b809bc6ed10a21e89444d9447e5475801874fjohanengelen#endif
63267518b4ce196caab66ef8cbdcfc0921206b3djohanengelen/*
63267518b4ce196caab66ef8cbdcfc0921206b3djohanengelen Local Variables:
63267518b4ce196caab66ef8cbdcfc0921206b3djohanengelen mode:c++
63267518b4ce196caab66ef8cbdcfc0921206b3djohanengelen c-file-style:"stroustrup"
63267518b4ce196caab66ef8cbdcfc0921206b3djohanengelen c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
63267518b4ce196caab66ef8cbdcfc0921206b3djohanengelen indent-tabs-mode:nil
63267518b4ce196caab66ef8cbdcfc0921206b3djohanengelen fill-column:99
63267518b4ce196caab66ef8cbdcfc0921206b3djohanengelen End:
63267518b4ce196caab66ef8cbdcfc0921206b3djohanengelen*/
a4030d5ca449e7e384bc699cd249ee704faaeab0Chris Morgan// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :