QGIS API Documentation 3.39.0-Master (e8f1b343c48)
Loading...
Searching...
No Matches
qgsalgorithmsplitlinesbylength.h
Go to the documentation of this file.
1/***************************************************************************
2 qgsalgorithmsplitlinesbylength.h
3 ---------------------
4 begin : December 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 QGSALGORITHMSPLITLINESBYLENGTH_H
19#define QGSALGORITHMSPLITLINESBYLENGTH_H
20
21#define SIP_NO_FILE
22
23#include "qgis_sip.h"
25
27
31class QgsSplitLinesByLengthAlgorithm : public QgsProcessingFeatureBasedAlgorithm
32{
33
34 public:
35
36 QgsSplitLinesByLengthAlgorithm() = 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 QString shortDescription() const override;
45 QList<int> inputLayerTypes() const override;
47 QgsSplitLinesByLengthAlgorithm *createInstance() const override SIP_FACTORY;
48 void initParameters( const QVariantMap &configuration = QVariantMap() ) override;
49 bool prepareAlgorithm( const QVariantMap &parameters, QgsProcessingContext &context, QgsProcessingFeedback *feedback ) override;
50
51 protected:
52 QString outputName() const override;
53 Qgis::WkbType outputWkbType( Qgis::WkbType inputWkbType ) const override;
54 QgsFeatureList processFeature( const QgsFeature &feature, QgsProcessingContext &context, QgsProcessingFeedback *feedback ) override;
55 Qgis::ProcessingFeatureSourceFlags sourceFlags() const override;
56 QgsFeatureSink::SinkFlags sinkFlags() const override;
57
58 private:
59
60 double mLength = 0.0;
61 bool mDynamicLength = false;
62 QgsProperty mLengthProperty;
63
64};
65
67
68#endif // QGSALGORITHMSPLITLINESBYLENGTH_H
69
70
ProcessingSourceType
Processing data source types.
Definition qgis.h:3242
QFlags< ProcessingAlgorithmDocumentationFlag > ProcessingAlgorithmDocumentationFlags
Flags describing algorithm behavior for documentation purposes.
Definition qgis.h:3339
WkbType
The WKB type describes the number of dimensions a geometry has.
Definition qgis.h:256
QFlags< ProcessingFeatureSourceFlag > ProcessingFeatureSourceFlags
Flags which control how QgsProcessingFeatureSource fetches features.
Definition qgis.h:3416
QFlags< SinkFlag > SinkFlags
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
Definition qgsfeature.h:58
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 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 QStringList tags() const
Returns a list of tags which relate to the algorithm, and are used to assist users in searching for s...
virtual QString name() const =0
Returns the algorithm name, used for identifying the algorithm.
virtual Qgis::ProcessingAlgorithmDocumentationFlags documentationFlags() const
Returns the flags describing algorithm behavior for documentation purposes.
Contains information about the context in which a processing algorithm is executed.
An abstract QgsProcessingAlgorithm base class for processing algorithms which operate "feature-by-fea...
virtual Qgis::ProcessingSourceType outputLayerType() const
Returns the layer type for layers generated by this algorithm, if this is possible to determine in ad...
virtual QList< int > inputLayerTypes() const
Returns the valid input layer types for the source layer for this algorithm.
Base class for providing feedback from a processing algorithm.
A store for object properties.
#define SIP_FACTORY
Definition qgis_sip.h:76
QList< QgsFeature > QgsFeatureList