Adding upstream version 1.3.upstream/1.3upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 87 insertions, 0 deletions

diff --git a/include/2geom/sbasis-to-bezier.h b/include/2geom/sbasis-to-bezier.h
new file mode 100644
index 0000000..eadb47b
--- /dev/null
+++ b/include/2geom/sbasis-to-bezier.h
@@ -0,0 +1,87 @@
+/**
+ * \file
+ * \brief Conversion between SBasis and Bezier basis polynomials
+ *//*
+ * Authors:
+ *      ? <?@?.?>
+ * 
+ * Copyright ?-?  authors
+ *
+ * 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_SBASIS_TO_BEZIER_H
+#define LIB2GEOM_SEEN_SBASIS_TO_BEZIER_H
+
+#include <2geom/d2.h>
+#include <2geom/pathvector.h>
+
+#include <vector>
+
+namespace Geom {
+
+class PathBuilder;
+
+void sbasis_to_bezier (Bezier &bz, SBasis const &sb, size_t sz = 0);
+void sbasis_to_bezier (D2<Bezier> &bz, D2<SBasis> const &sb, size_t sz = 0);
+void sbasis_to_bezier (std::vector<Point> & bz, D2<SBasis> const& sb, size_t sz = 0);
+void sbasis_to_cubic_bezier (std::vector<Point> & bz, D2<SBasis> const& sb);
+void bezier_to_sbasis (SBasis & sb, Bezier const& bz);
+void bezier_to_sbasis (D2<SBasis> & sb, std::vector<Point> const& bz);
+void build_from_sbasis(PathBuilder &pb, D2<SBasis> const &B, double tol, bool only_cubicbeziers);
+
+#if 0
+// this produces a degree k bezier from a degree k sbasis
+Bezier
+sbasis_to_bezier(SBasis const &B, unsigned q = 0);
+
+// inverse
+SBasis bezier_to_sbasis(Bezier const &B);
+
+
+std::vector<Geom::Point>
+sbasis_to_bezier(D2<SBasis> const &B, unsigned q = 0);
+#endif
+
+
+PathVector path_from_piecewise(Piecewise<D2<SBasis> > const &B, double tol, bool only_cubicbeziers = false);
+
+Path path_from_sbasis(D2<SBasis> const &B, double tol, bool only_cubicbeziers = false);
+inline Path cubicbezierpath_from_sbasis(D2<SBasis> const &B, double tol)
+    { return path_from_sbasis(B, tol, true); }
+
+} // end namespace Geom
+
+#endif
+/*
+  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 :