QGIS API Documentation  2.15.0-Master (af20121)
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 #include "pal.h"
34 #include "rtree.hpp"
35 #include "pointset.h"
36 #include "qgsgeometry.h"
37 
38 namespace pal
39 {
40 
41  class LabelPosition;
42  class Layer;
43  class FeaturePart;
44 
49  class Feats
50  {
51  public:
53  : feature( nullptr )
54  , shape( nullptr )
55  , priority( 0 )
56  {}
57 
60  double priority;
62  };
63 
64 
66  {
67  int feat;
68  int old_label;
69  int new_label;
70  } ElemTrans;
71 
72  struct Point
73  {
74  double x, y;
75  };
76 
77 #define EPSILON 1e-9
78 
83  class Util
84  {
85  public:
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 #endif
FeaturePart * feature
Definition: util.h:58
struct pal::_elementary_transformation ElemTrans
Feats()
Definition: util.h:52
PointSet * shape
Definition: util.h:59
For usage in problem solving algorithm.
Definition: util.h:49
Definition: util.h:83
double priority
Definition: util.h:60
Main class to handle feature.
Definition: feature.h:90
double y
Definition: util.h:74
QList< LabelPosition * > lPos
Definition: util.h:61