QGIS API Documentation  2.99.0-Master (19b062c)
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 
38 namespace pal
39 {
40 
41  class LabelPosition;
42  class Layer;
43  class FeaturePart;
44 
50  class Feats
51  {
52  public:
54  Feats() = default;
55 
56  FeaturePart *feature = nullptr;
57  PointSet *shape = nullptr;
58  double priority = 0;
59  QList< LabelPosition *> lPos;
60  };
61 
62 
64  {
65  int feat;
66  int old_label;
67  int new_label;
68  } ElemTrans;
69 
70  struct Point
71  {
72  double x, y;
73  };
74 
75 #define EPSILON 1e-9
76 
82  class Util
83  {
84  public:
85 
92  static void sort( void **items, int N, bool ( *greater )( void *l, void *r ) );
93 
94  static QLinkedList<const GEOSGeometry *> *unmulti( const GEOSGeometry *the_geom );
95  };
96 
97 
98 } // namespace
99 
100 Q_DECLARE_TYPEINFO( pal::Point, Q_PRIMITIVE_TYPE );
101 
102 #endif
FeaturePart * feature
Definition: util.h:56
Feats()=default
Constructor for Feats.
struct pal::_elementary_transformation ElemTrans
PointSet * shape
Definition: util.h:57
Q_DECLARE_TYPEINFO(pal::Point, Q_PRIMITIVE_TYPE)
QList< LabelPosition * > lPos
Definition: util.h:59
For usage in problem solving algorithm.
Definition: util.h:50
Definition: util.h:82
double priority
Definition: util.h:58
Main class to handle feature.
Definition: feature.h:96
double y
Definition: util.h:72