QGIS API Documentation 3.29.0-Master (ade4f0cf0f)
qgsvectorlayerdirector.h
Go to the documentation of this file.
1/***************************************************************************
2 qgsvectorlayerdirector.h
3 --------------------------------------
4 Date : 2010-10-20
5 Copyright : (C) 2010 by Yakushev Sergey
6 Email : YakushevS <at> list.ru
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 QGSVECTORLAYERDIRECTOR_H
17#define QGSVECTORLAYERDIRECTOR_H
18
19#include "qgis.h"
20
21#include "qgsgraphdirector.h"
22#include "qgis_analysis.h"
23
26
33class ANALYSIS_EXPORT QgsVectorLayerDirector : public QgsGraphDirector
34{
35 Q_OBJECT
36
37 public:
38
47 {
51 };
52
64 int directionFieldId,
65 const QString &directDirectionValue,
66 const QString &reverseDirectionValue,
67 const QString &bothDirectionValue,
68 Direction defaultDirection
69 );
70
71 /*
72 * MANDATORY DIRECTOR PROPERTY DECLARATION
73 */
75 const QVector< QgsPointXY > &additionalPoints,
76 QVector< QgsPointXY> &snappedPoints SIP_OUT,
77 QgsFeedback *feedback = nullptr ) const override;
78
79 QString name() const override;
80
81 private:
82 QgsFeatureSource *mSource = nullptr;
83 int mDirectionFieldId = -1;
84 QString mDirectDirectionValue;
85 QString mReverseDirectionValue;
86 QString mBothDirectionValue;
87 Direction mDefaultDirection = DirectionBoth;
88
89 QgsAttributeList requiredAttributes() const;
90 Direction directionForFeature( const QgsFeature &feature ) const;
91};
92
93#endif // QGSVECTORLAYERDIRECTOR_H
An interface for objects which provide features via a getFeatures method.
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
Definition: qgsfeature.h:56
Base class for feedback objects to be used for cancellation of something running in a worker thread.
Definition: qgsfeedback.h:45
Determine interface for creating a graph.
Determine making the graph.
virtual void makeGraph(QgsGraphBuilderInterface *builder, const QVector< QgsPointXY > &additionalPoints, QVector< QgsPointXY > &snappedPoints, QgsFeedback *feedback=nullptr) const
Make a graph using QgsGraphBuilder.
virtual QString name() const =0
Returns director name.
Determine making the graph from vector line layer.
Direction
Edge direction Edge can be one-way with direct flow (one can move only from the start point to the en...
@ DirectionForward
One-way direct.
@ DirectionBackward
One-way reversed.
#define SIP_OUT
Definition: qgis_sip.h:58
QList< int > QgsAttributeList
Definition: qgsfield.h:26