QGIS API Documentation 3.39.0-Master (67e056379ed)
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qgsalgorithmrasterlogicalop.h
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1/***************************************************************************
2 qgsalgorithmrasterlogicalop.h
3 ---------------------
4 begin : March 2019
5 copyright : (C) 2019 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 QGSALGORITHMRASTERLOGICALOP_H
19#define QGSALGORITHMRASTERLOGICALOP_H
20
21#define SIP_NO_FILE
22
23#include "qgis_sip.h"
25#include "qgsrasterprojector.h"
27
29
33class ANALYSIS_EXPORT QgsRasterBooleanLogicAlgorithmBase : public QgsProcessingAlgorithm
34{
35
36 public:
37
38 QgsRasterBooleanLogicAlgorithmBase() = default;
39
40 void initAlgorithm( const QVariantMap &configuration = QVariantMap() ) override;
41 QStringList tags() const override;
42 QString group() const override;
43 QString groupId() const override;
44
45 protected:
46
47 bool prepareAlgorithm( const QVariantMap &parameters, QgsProcessingContext &context, QgsProcessingFeedback *feedback ) override;
48 QVariantMap processAlgorithm( const QVariantMap &parameters,
49 QgsProcessingContext &context, QgsProcessingFeedback *feedback ) override;
50
51 std::function<void( const std::vector< std::unique_ptr< QgsRasterBlock > > &, bool &, bool &, int, int, bool )> mExtractValFunc;
52
53 private:
54
55 std::vector< QgsRasterAnalysisUtils::RasterLogicInput > mInputs;
57 double mNoDataValue = -9999;
58 int mLayerWidth = 0;
59 int mLayerHeight = 0;
60 QgsRectangle mExtent;
62 double mRasterUnitsPerPixelX = 0;
63 double mRasterUnitsPerPixelY = 0;
64 bool mTreatNodataAsFalse = false;
65 friend class TestQgsProcessingAlgsPt1;
66};
67
71class ANALYSIS_EXPORT QgsRasterLogicalOrAlgorithm : public QgsRasterBooleanLogicAlgorithmBase
72{
73
74 public:
75
76 QgsRasterLogicalOrAlgorithm();
77
78 QString name() const override;
79 QString displayName() const override;
80 QString shortHelpString() const override;
81 QString shortDescription() const override;
82 QgsRasterLogicalOrAlgorithm *createInstance() const override SIP_FACTORY;
83
84};
85
89class ANALYSIS_EXPORT QgsRasterLogicalAndAlgorithm : public QgsRasterBooleanLogicAlgorithmBase
90{
91
92 public:
93
94 QgsRasterLogicalAndAlgorithm();
95
96 QString name() const override;
97 QString displayName() const override;
98 QString shortHelpString() const override;
99 QString shortDescription() const override;
100 QgsRasterLogicalAndAlgorithm *createInstance() const override SIP_FACTORY;
101
102};
103
105
106#endif // QGSALGORITHMRASTERLOGICALOP_H
107
108
DataType
Raster data types.
Definition qgis.h:288
@ Float32
Thirty two bit floating point (float)
This class represents a coordinate reference system (CRS).
Abstract base class for processing algorithms.
virtual QgsProcessingAlgorithm * createInstance() const =0
Creates a new instance of the algorithm class.
virtual QString group() const
Returns the name of the group this algorithm belongs to.
virtual bool prepareAlgorithm(const QVariantMap &parameters, QgsProcessingContext &context, QgsProcessingFeedback *feedback)
Prepares the algorithm to run using the specified parameters.
virtual QString groupId() const
Returns the unique ID of the group this algorithm belongs to.
virtual QString shortHelpString() const
Returns a localised short helper string for the algorithm.
virtual QString shortDescription() const
Returns an optional translated short description of the algorithm.
virtual QString displayName() const =0
Returns the translated algorithm name, which should be used for any user-visible display of the algor...
virtual QVariantMap processAlgorithm(const QVariantMap &parameters, QgsProcessingContext &context, QgsProcessingFeedback *feedback)=0
Runs the algorithm using the specified parameters.
virtual QStringList tags() const
Returns a list of tags which relate to the algorithm, and are used to assist users in searching for s...
virtual void initAlgorithm(const QVariantMap &configuration=QVariantMap())=0
Initializes the algorithm using the specified configuration.
virtual QString name() const =0
Returns the algorithm name, used for identifying the algorithm.
Contains information about the context in which a processing algorithm is executed.
Base class for providing feedback from a processing algorithm.
A rectangle specified with double values.
#define SIP_FACTORY
Definition qgis_sip.h:76