1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/*
* Diffeomorphism-based intersector: given two curves
* M(t)=(x(t),y(t)) and N(u)=(X(u),Y(u))
* and supposing M is a graph over the x-axis, we compute y(x) and the
* transformation:
* X <- X
* Y <- Y - y(X)
* smashes M on the x axis. The intersections are then given by the roots of:
* Y(u) - y(X(u)) = 0
*//*
* Authors:
* J.-F. Barraud <jfbarraud at gmail.com>
* Copyright 2010 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 SEEN_LIB2GEOM_INTERSECTION_BY_SMASHING_H
#define SEEN_LIB2GEOM_INTERSECTION_BY_SMASHING_H
#include <2geom/d2.h>
#include <2geom/interval.h>
#include <2geom/sbasis.h>
#include <2geom/sbasis-geometric.h>
#include <cstdlib>
#include <vector>
#include <algorithm>
namespace Geom{
struct SmashIntersection {
Rect times;
Rect bbox;
};
std::vector<SmashIntersection> smash_intersect( D2<SBasis> const &a, D2<SBasis> const &b, double tol);
std::vector<SmashIntersection> monotonic_smash_intersect( D2<SBasis> const &a, D2<SBasis> const &b, double tol);
//std::vector<Intersection> monotonic_smash_intersect( Curve const &a, double a_from, double a_to,
// Curve const &b, double b_from, double b_to, double tol);
std::vector<Interval> monotonicSplit(D2<SBasis> const &p);
} // end namespace Geom
#endif // !SEEN_LIB2GEOM_INTERSECTION_BY_SMASHING_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 :
|
