QGIS API Documentation  3.14.0-Pi (9f7028fd23)
util.h
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1 /*
2  * libpal - Automated Placement of Labels Library
3  *
4  * Copyright (C) 2008 Maxence Laurent, MIS-TIC, HEIG-VD
5  * University of Applied Sciences, Western Switzerland
6  * http://www.hes-so.ch
7  *
8  * Contact:
9  * maxence.laurent <at> heig-vd <dot> ch
10  * or
11  * eric.taillard <at> heig-vd <dot> ch
12  *
13  * This file is part of libpal.
14  *
15  * libpal is free software: you can redistribute it and/or modify
16  * it under the terms of the GNU General Public License as published by
17  * the Free Software Foundation, either version 3 of the License, or
18  * (at your option) any later version.
19  *
20  * libpal is distributed in the hope that it will be useful,
21  * but WITHOUT ANY WARRANTY; without even the implied warranty of
22  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23  * GNU General Public License for more details.
24  *
25  * You should have received a copy of the GNU General Public License
26  * along with libpal. If not, see <http://www.gnu.org/licenses/>.
27  *
28  */
29 
30 #ifndef PAL_UTIL_H
31 #define PAL_UTIL_H
32 
33 #define SIP_NO_FILE
34 
35 
36 #include <QList>
37 #include <vector>
38 #include <memory>
39 
40 namespace pal
41 {
42 
43  class LabelPosition;
44  class Layer;
45  class FeaturePart;
46  class PointSet;
47 
53  class Feats
54  {
55  public:
57  Feats() = default;
58 
59  FeaturePart *feature = nullptr;
60  PointSet *shape = nullptr;
61  double priority = 0;
62  std::vector< std::unique_ptr< LabelPosition > > candidates;
63  };
64 
65 
66  struct ElemTrans
67  {
68  int feat;
69  int old_label;
70  int new_label;
71  };
72 
73  struct Point
74  {
75  double x, y;
76  };
77 
78 #define EPSILON 1e-9
79 
85  class Util
86  {
87  public:
88 
89  static QLinkedList<const GEOSGeometry *> *unmulti( const GEOSGeometry *the_geom );
90  };
91 
92 
93 } // namespace
94 
95 Q_DECLARE_TYPEINFO( pal::Point, Q_PRIMITIVE_TYPE );
96 
97 #endif
pal::ElemTrans
Definition: util.h:66
pal::Feats::Feats
Feats()=default
Constructor for Feats.
pal::Util
Definition: util.h:85
pal::Point::y
double y
Definition: util.h:75
pal::ElemTrans::feat
int feat
Definition: util.h:68
pal::Util::unmulti
static QLinkedList< const GEOSGeometry * > * unmulti(const GEOSGeometry *the_geom)
Definition: util.cpp:40
pal::ElemTrans::old_label
int old_label
Definition: util.h:69
pal
Definition: qgsdiagramrenderer.h:49
pal::Point
Definition: util.h:73
pal::Feats::priority
double priority
Definition: util.h:61
pal::FeaturePart
Main class to handle feature.
Definition: feature.h:95
pal::Feats::feature
FeaturePart * feature
Definition: util.h:59
pal::Feats::candidates
std::vector< std::unique_ptr< LabelPosition > > candidates
Definition: util.h:62
pal::PointSet
Definition: pointset.h:71
pal::ElemTrans::new_label
int new_label
Definition: util.h:70
pal::Feats
For usage in problem solving algorithm.
Definition: util.h:53
pal::Point::x
double x
Definition: util.h:75
pal::Feats::shape
PointSet * shape
Definition: util.h:60
Q_DECLARE_TYPEINFO
Q_DECLARE_TYPEINFO(pal::Point, Q_PRIMITIVE_TYPE)