18 #ifndef QGSALGORITHMSIMPLIFY_H 19 #define QGSALGORITHMSIMPLIFY_H 37 QgsSimplifyAlgorithm() =
default;
38 QString
name()
const override;
40 QStringList
tags()
const override;
41 QString
group()
const override;
42 QString
groupId()
const override;
46 void initParameters(
const QVariantMap &configuration = QVariantMap() )
override;
55 double mTolerance = 1.0;
57 std::unique_ptr< QgsMapToPixelSimplifier > mSimplifier;
64 #endif // QGSALGORITHMSIMPLIFY_H virtual QString outputName() const =0
Returns the translated, user visible name for any layers created by this algorithm.
Base class for providing feedback from a processing algorithm.
QList< QgsFeature > QgsFeatureList
virtual QString name() const =0
Returns the algorithm name, used for identifying the algorithm.
virtual QString group() const
Returns the name of the group this algorithm belongs to.
virtual QStringList tags() const
Returns a list of tags which relate to the algorithm, and are used to assist users in searching for s...
The feature class encapsulates a single feature including its id, geometry and a list of field/values...
SimplifyAlgorithm
Types of simplification algorithms that can be used.
virtual QList< int > inputLayerTypes() const
Returns the valid input layer types for the source layer for this algorithm.
virtual QString shortHelpString() const
Returns a localised short helper string for the algorithm.
virtual QgsFeatureList processFeature(const QgsFeature &feature, QgsProcessingContext &context, QgsProcessingFeedback *feedback)=0
Processes an individual input feature from the source.
virtual QgsProcessingAlgorithm * createInstance() const =0
Creates a new instance of the algorithm class.
virtual QString displayName() const =0
Returns the translated algorithm name, which should be used for any user-visible display of the algor...
virtual void initParameters(const QVariantMap &configuration=QVariantMap())
Initializes any extra parameters added by the algorithm subclass.
virtual QString groupId() const
Returns the unique ID of the group this algorithm belongs to.
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.
The simplification uses the distance between points to remove duplicate points.
virtual bool prepareAlgorithm(const QVariantMap ¶meters, QgsProcessingContext &context, QgsProcessingFeedback *feedback)
Prepares the algorithm to run using the specified parameters.