/usr/include/qgis/qgsosmdatabase.h is in libqgis-dev 2.0.1-2build2.
This file is owned by root:root, with mode 0o644.
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qgsosmdatabase.h
--------------------------------------
Date : January 2013
Copyright : (C) 2013 by Martin Dobias
Email : wonder dot sk at gmail dot com
***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef OSMDATABASE_H
#define OSMDATABASE_H
#include <QString>
#include <QStringList>
#include "qgsosmbase.h"
#include "qgsgeometry.h"
class QgsOSMNodeIterator;
class QgsOSMWayIterator;
typedef QPair<QString, int> QgsOSMTagCountPair;
/**
* Class that encapsulates access to OpenStreetMap data stored in a database
* previously imported from XML file.
*
* Internal database structure consists of the following tables:
* - nodes
* - nodes_tags
* - ways
* - ways_tags
* - ways_nodes
*
* The topology representation can be translated to simple features representation
* using exportSpatiaLite() method into SpatiaLite layers (tables). These can be
* easily used in QGIS like any other layers.
*/
class ANALYSIS_EXPORT QgsOSMDatabase
{
public:
explicit QgsOSMDatabase( const QString& dbFileName = QString() );
~QgsOSMDatabase();
void setFileName( const QString& dbFileName ) { mDbFileName = dbFileName; }
QString filename() const { return mDbFileName; }
bool isOpen() const;
bool open();
bool close();
QString errorString() const { return mError; }
// data access
int countNodes() const;
int countWays() const;
QgsOSMNodeIterator listNodes() const;
QgsOSMWayIterator listWays() const;
QgsOSMNode node( QgsOSMId id ) const;
QgsOSMWay way( QgsOSMId id ) const;
//OSMRelation relation( OSMId id ) const;
QgsOSMTags tags( bool way, QgsOSMId id ) const;
QList<QgsOSMTagCountPair> usedTags( bool ways ) const;
QgsPolyline wayPoints( QgsOSMId id ) const;
// export to spatialite
enum ExportType { Point, Polyline, Polygon };
bool exportSpatiaLite( ExportType type, const QString& tableName, const QStringList& tagKeys = QStringList() );
protected:
bool prepareStatements();
int runCountStatement( const char* sql ) const;
void deleteStatement( sqlite3_stmt*& stmt );
void exportSpatiaLiteNodes( const QString& tableName, const QStringList& tagKeys );
void exportSpatiaLiteWays( bool closed, const QString& tableName, const QStringList& tagKeys );
bool createSpatialTable( const QString& tableName, const QString& geometryType, const QStringList& tagKeys );
bool createSpatialIndex( const QString& tableName );
QString quotedIdentifier( QString id );
QString quotedValue( QString value );
private:
//! database file name
QString mDbFileName;
QString mError;
//! pointer to sqlite3 database that keeps OSM data
sqlite3* mDatabase;
sqlite3_stmt* mStmtNode;
sqlite3_stmt* mStmtNodeTags;
sqlite3_stmt* mStmtWay;
sqlite3_stmt* mStmtWayNode;
sqlite3_stmt* mStmtWayNodePoints;
sqlite3_stmt* mStmtWayTags;
};
/** Encapsulate iteration over table of nodes */
class ANALYSIS_EXPORT QgsOSMNodeIterator
{
public:
~QgsOSMNodeIterator();
QgsOSMNode next();
void close();
protected:
QgsOSMNodeIterator( sqlite3* handle );
sqlite3_stmt* mStmt;
friend class QgsOSMDatabase;
};
/** Encapsulate iteration over table of ways */
class ANALYSIS_EXPORT QgsOSMWayIterator
{
public:
~QgsOSMWayIterator();
QgsOSMWay next();
void close();
protected:
QgsOSMWayIterator( sqlite3* handle );
sqlite3_stmt* mStmt;
friend class QgsOSMDatabase;
};
#endif // OSMDATABASE_H
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