QGIS API Documentation 3.40.0-Bratislava (b56115d8743)
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qgseptpointcloudindex.h
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1/***************************************************************************
2 qgspointcloudindex.h
3 --------------------
4 begin : October 2020
5 copyright : (C) 2020 by Peter Petrik
6 email : zilolv 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 QGSEPTPOINTCLOUDINDEX_H
19#define QGSEPTPOINTCLOUDINDEX_H
20
21#include <QObject>
22#include <QString>
23#include <QHash>
24#include <QStringList>
25#include <QVector>
26#include <QList>
27#include <QFile>
28
29#include "qgspointcloudindex.h"
30#include "qgis_sip.h"
31
33#define SIP_NO_FILE
34
36
37class CORE_EXPORT QgsEptPointCloudIndex: public QgsPointCloudIndex
38{
39 Q_OBJECT
40 public:
41
42 explicit QgsEptPointCloudIndex();
43 ~QgsEptPointCloudIndex();
44
45 std::unique_ptr<QgsPointCloudIndex> clone() const override;
46
47 void load( const QString &fileName ) override;
48
49 std::unique_ptr<QgsPointCloudBlock> nodeData( const IndexedPointCloudNode &n, const QgsPointCloudRequest &request ) override;
51
52 QgsCoordinateReferenceSystem crs() const override;
53 qint64 pointCount() const override;
54 bool hasStatisticsMetadata() const override;
55 QVariant metadataStatistic( const QString &attribute, Qgis::Statistic statistic ) const override;
56 QVariantList metadataClasses( const QString &attribute ) const override;
57 QVariant metadataClassStatistic( const QString &attribute, const QVariant &value, Qgis::Statistic statistic ) const override;
58 QVariantMap originalMetadata() const override { return mOriginalMetadata; }
59
60 bool isValid() const override;
62
67 void copyCommonProperties( QgsEptPointCloudIndex *destination ) const;
68
69 protected:
70 bool loadSchema( const QByteArray &dataJson );
71 void loadManifest( const QByteArray &manifestJson );
72 bool loadSchema( QFile &f );
73 bool loadHierarchy();
74
75 bool mIsValid = false;
76 QString mDataType;
77 QString mDirectory;
78 QString mWkt;
79
80 qint64 mPointCount = 0;
81
82 struct AttributeStatistics
83 {
84 int count = -1;
85 QVariant minimum;
86 QVariant maximum;
87 double mean = std::numeric_limits< double >::quiet_NaN();
88 double stDev = std::numeric_limits< double >::quiet_NaN();
89 double variance = std::numeric_limits< double >::quiet_NaN();
90 };
91
92 QMap< QString, AttributeStatistics > mMetadataStats;
93
94 QMap< QString, QMap< int, int > > mAttributeClasses;
95 QVariantMap mOriginalMetadata;
96};
97
99#endif // QGSEPTPOINTCLOUDINDEX_H
Represents a indexed point cloud node in octree.
Statistic
Available generic statistics.
Definition qgis.h:5432
This class represents a coordinate reference system (CRS).
Base class for handling loading QgsPointCloudBlock asynchronously.
Represents a indexed point clouds data in octree.
virtual QgsPointCloudBlockRequest * asyncNodeData(const IndexedPointCloudNode &n, const QgsPointCloudRequest &request)=0
Returns a handle responsible for loading a node data block.
AccessType
The access type of the data, local is for local files and remote for remote files (over HTTP)
@ Local
Local means the source is a local file on the machine.
virtual qint64 pointCount() const =0
Returns the number of points in the point cloud.
virtual QVariantList metadataClasses(const QString &attribute) const
Returns the classes of attribute.
void copyCommonProperties(QgsPointCloudIndex *destination) const
Copies common properties to the destination index.
virtual AccessType accessType() const =0
Returns the access type of the data If the access type is Remote, data will be fetched from an HTTP s...
virtual std::unique_ptr< QgsPointCloudIndex > clone() const =0
Returns a clone of the current point cloud index object.
virtual bool isValid() const =0
Returns whether index is loaded and valid.
virtual QgsCoordinateReferenceSystem crs() const =0
Returns the coordinate reference system of the point cloud index.
virtual void load(const QString &fileName)=0
Loads the index from the file.
virtual bool hasStatisticsMetadata() const =0
Returns whether the dataset contains metadata of statistics.
virtual QVariant metadataStatistic(const QString &attribute, Qgis::Statistic statistic) const
Returns the statistic statistic of attribute.
virtual std::unique_ptr< QgsPointCloudBlock > nodeData(const IndexedPointCloudNode &n, const QgsPointCloudRequest &request)=0
Returns node data block.
virtual QVariant metadataClassStatistic(const QString &attribute, const QVariant &value, Qgis::Statistic statistic) const
Returns the statistic statistic of the class value of the attribute attribute.
virtual QVariantMap originalMetadata() const =0
Returns the original metadata map.
Point cloud data request.