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qgsvectorsimplifymethod.h
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1 /***************************************************************************
2  qgsvectorsimplifymethod.h
3  ---------------------
4  begin : December 2013
5  copyright : (C) 2013 by Alvaro Huarte
6  email : http://wiki.osgeo.org/wiki/Alvaro_Huarte
7  ***************************************************************************
8  * *
9  * This program is free software; you can redistribute it and/or modify *
10  * it under the terms of the GNU General Public License as published by *
11  * the Free Software Foundation; either version 2 of the License, or *
12  * (at your option) any later version. *
13  * *
14  ***************************************************************************/
15 
16 #ifndef QGSVECTORSIMPLIFYMETHOD_H
17 #define QGSVECTORSIMPLIFYMETHOD_H
18 
19 #include <QFlags>
20 
24 class CORE_EXPORT QgsVectorSimplifyMethod
25 {
26  public:
32  QgsVectorSimplifyMethod& operator=( const QgsVectorSimplifyMethod& rh );
33 
36  {
37  NoSimplification = 0,
38  GeometrySimplification = 1,
39  AntialiasingSimplification = 2,
40  FullSimplification = 3,
41  };
42  Q_DECLARE_FLAGS( SimplifyHints, SimplifyHint )
43 
44 
45  void setSimplifyHints( SimplifyHints simplifyHints ) { mSimplifyHints = simplifyHints; }
47  inline SimplifyHints simplifyHints() const { return mSimplifyHints; }
48 
50  void setThreshold( float threshold ) { mThreshold = threshold; }
52  inline float threshold() const { return mThreshold; }
53 
55  void setForceLocalOptimization( bool localOptimization ) { mLocalOptimization = localOptimization; }
57  inline bool forceLocalOptimization() const { return mLocalOptimization; }
58 
60  void setMaximumScale( float maximumScale ) { mMaximumScale = maximumScale; }
62  inline float maximumScale() const { return mMaximumScale; }
63 
64  private:
66  SimplifyHints mSimplifyHints;
68  float mThreshold;
70  bool mLocalOptimization;
72  float mMaximumScale;
73 };
74 
75 Q_DECLARE_OPERATORS_FOR_FLAGS( QgsVectorSimplifyMethod::SimplifyHints )
76 
77 #endif // QGSVECTORSIMPLIFYMETHOD_H
float threshold() const
Gets the simplification threshold of the vector layer managed.
Definition: qgsvectorsimplifymethod.h:52
void setForceLocalOptimization(bool localOptimization)
Sets where the simplification executes, after fetch the geometries from provider, or when supported...
Definition: qgsvectorsimplifymethod.h:55
SimplifyHint
Simplification flags for fast rendering of features.
Definition: qgsvectorsimplifymethod.h:35
bool forceLocalOptimization() const
Gets where the simplification executes, after fetch the geometries from provider, or when supported...
Definition: qgsvectorsimplifymethod.h:57
void setMaximumScale(float maximumScale)
Sets the maximum scale at which the layer should be simplified.
Definition: qgsvectorsimplifymethod.h:60
This class contains information how to simplify geometries fetched from a vector layer.
Definition: qgsvectorsimplifymethod.h:24
SimplifyHints simplifyHints() const
Gets the simplification hints of the vector layer managed.
Definition: qgsvectorsimplifymethod.h:47
float maximumScale() const
Gets the maximum scale at which the layer should be simplified.
Definition: qgsvectorsimplifymethod.h:62
void setThreshold(float threshold)
Sets the simplification threshold of the vector layer managed.
Definition: qgsvectorsimplifymethod.h:50