QGIS API Documentation  3.4.15-Madeira (e83d02e274)
qgsalgorithmrotate.h
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1 /***************************************************************************
2  qgsalgorithmrotate.h
3  ---------------------
4  begin : March 2018
5  copyright : (C) 2018 by Nyall Dawson
6  email : nyall dot dawson at gmail dot com
7  ***************************************************************************/
8 
9 /***************************************************************************
10  * *
11  * This program is free software; you can redistribute it and/or modify *
12  * it under the terms of the GNU General Public License as published by *
13  * the Free Software Foundation; either version 2 of the License, or *
14  * (at your option) any later version. *
15  * *
16  ***************************************************************************/
17 
18 #ifndef QGSALGORITHMROTATE_H
19 #define QGSALGORITHMROTATE_H
20 
21 #define SIP_NO_FILE
22 
23 #include "qgis.h"
24 #include "qgsprocessingalgorithm.h"
25 
27 
31 class QgsRotateFeaturesAlgorithm : public QgsProcessingFeatureBasedAlgorithm
32 {
33 
34  public:
35 
36  QgsRotateFeaturesAlgorithm() = default;
37  QString name() const override;
38  QString displayName() const override;
39  QStringList tags() const override;
40  QString group() const override;
41  QString groupId() const override;
42  QString shortHelpString() const override;
43  QgsRotateFeaturesAlgorithm *createInstance() const override SIP_FACTORY;
44  void initParameters( const QVariantMap &configuration = QVariantMap() ) override;
45 
46  protected:
47  QString outputName() const override;
48  bool prepareAlgorithm( const QVariantMap &parameters, QgsProcessingContext &context, QgsProcessingFeedback *feedback ) override;
49  QgsFeatureList processFeature( const QgsFeature &feature, QgsProcessingContext &context, QgsProcessingFeedback *feedback ) override;
50 
51  private:
52 
53  double mAngle = 0.0;
54  bool mDynamicAngle = false;
55  QgsProperty mAngleProperty;
56 
57  bool mUseAnchor = false;
58  QgsPointXY mAnchor;
60  bool mTransformedAnchor = false;
61 
62 };
63 
64 
66 
67 #endif // QGSALGORITHMROTATE_H
68 
69 
virtual QString outputName() const =0
Returns the translated, user visible name for any layers created by this algorithm.
virtual bool prepareAlgorithm(const QVariantMap &parameters, QgsProcessingContext &context, QgsProcessingFeedback *feedback) SIP_THROW(QgsProcessingException)
Prepares the algorithm to run using the specified parameters.
Base class for providing feedback from a processing algorithm.
virtual QgsFeatureList processFeature(const QgsFeature &feature, QgsProcessingContext &context, QgsProcessingFeedback *feedback) SIP_THROW(QgsProcessingException)=0
Processes an individual input feature from the source.
QList< QgsFeature > QgsFeatureList
Definition: qgsfeature.h:571
virtual QString name() const =0
Returns the algorithm name, used for identifying the algorithm.
A class to represent a 2D point.
Definition: qgspointxy.h:43
The feature class encapsulates a single feature including its id, geometry and a list of field/values...
Definition: qgsfeature.h:55
virtual QStringList tags() const
Returns a list of tags which relate to the algorithm, and are used to assist users in searching for s...
#define SIP_FACTORY
Definition: qgis_sip.h:69
A store for object properties.
Definition: qgsproperty.h:229
virtual QgsProcessingAlgorithm * createInstance() const =0
Creates a new instance of the algorithm class.
virtual QString groupId() const
Returns the unique ID of the group this algorithm belongs to.
virtual QString displayName() const =0
Returns the translated algorithm name, which should be used for any user-visible display of the algor...
This class represents a coordinate reference system (CRS).
virtual QString group() const
Returns the name of the group this algorithm belongs to.
virtual void initParameters(const QVariantMap &configuration=QVariantMap())
Initializes any extra parameters added by the algorithm subclass.
An abstract QgsProcessingAlgorithm base class for processing algorithms which operate "feature-by-fea...
Contains information about the context in which a processing algorithm is executed.
virtual QString shortHelpString() const
Returns a localised short helper string for the algorithm.