示例#1
0
void QgsOSMDatabase::exportSpatiaLiteNodes( const QString& tableName, const QStringList& tagKeys, const QStringList& notNullTagKeys )
{
  QString sqlInsertPoint = QString( "INSERT INTO %1 VALUES (?" ).arg( quotedIdentifier( tableName ) );
  for ( int i = 0; i < tagKeys.count(); ++i )
    sqlInsertPoint += QString( ",?" );
  sqlInsertPoint += ", GeomFromWKB(?, 4326))";
  sqlite3_stmt* stmtInsert;
  if ( sqlite3_prepare_v2( mDatabase, sqlInsertPoint.toUtf8().constData(), -1, &stmtInsert, nullptr ) != SQLITE_OK )
  {
    mError = "Prepare SELECT FROM nodes failed.";
    return;
  }

  QgsOSMNodeIterator nodes = listNodes();
  QgsOSMNode n;
  while (( n = nodes.next() ).isValid() )
  {
    QgsOSMTags t = tags( false, n.id() );

    // skip untagged nodes: probably they form a part of ways
    if ( t.count() == 0 )
      continue;

    //check not null tags
    bool skipNull = false;
    for ( int i = 0; i < notNullTagKeys.count() && !skipNull; ++i )
      if ( !t.contains( notNullTagKeys[i] ) )
        skipNull = true;

    if ( skipNull )
      continue;

    QgsGeometry geom = QgsGeometry::fromPoint( n.point() );
    int col = 0;
    sqlite3_bind_int64( stmtInsert, ++col, n.id() );

    // tags
    for ( int i = 0; i < tagKeys.count(); ++i )
    {
      if ( t.contains( tagKeys[i] ) )
        sqlite3_bind_text( stmtInsert, ++col, t.value( tagKeys[i] ).toUtf8().constData(), -1, SQLITE_TRANSIENT );
      else
        sqlite3_bind_null( stmtInsert, ++col );
    }

    sqlite3_bind_blob( stmtInsert, ++col, geom.asWkb(), ( int ) geom.wkbSize(), SQLITE_STATIC );

    int insertRes = sqlite3_step( stmtInsert );
    if ( insertRes != SQLITE_DONE )
    {
      mError = QString( "Error inserting node %1 [%2]" ).arg( n.id() ).arg( insertRes );
      break;
    }

    sqlite3_reset( stmtInsert );
    sqlite3_clear_bindings( stmtInsert );
  }

  sqlite3_finalize( stmtInsert );
}
示例#2
0
void TestOpenStreetMap::importAndQueries()
{
  QString dbFilename = "/tmp/testdata.db";
  QString xmlFilename = TEST_DATA_DIR "/openstreetmap/testdata.xml";

  QgsOSMXmlImport import( xmlFilename, dbFilename );
  bool res = import.import();
  if ( import.hasError() )
    qDebug( "XML ERR: %s", import.errorString().toAscii().data() );
  QCOMPARE( res, true );
  QCOMPARE( import.hasError(), false );

  qDebug( "import finished" );

  QgsOSMDatabase db( dbFilename );
  bool dbopenRes = db.open();
  if ( !db.errorString().isEmpty() )
    qDebug( "DB ERR: %s", db.errorString().toAscii().data() );
  QCOMPARE( dbopenRes, true );

  // query node

  QgsOSMNode n = db.node( 11111 );
  QCOMPARE( n.isValid(), true );
  QCOMPARE( n.point().x(), 14.4277148 );
  QCOMPARE( n.point().y(), 50.0651387 );

  QgsOSMNode nNot = db.node( 22222 );
  QCOMPARE( nNot.isValid(), false );

  // query node tags

  QgsOSMTags tags = db.tags( false, 11111 );
  QCOMPARE( tags.count(), 7 );
  QCOMPARE( tags.value( "addr:postcode" ), QString( "12800" ) );

  QgsOSMTags tags2 = db.tags( false, 360769661 );
  QCOMPARE( tags2.count(), 0 );
  QCOMPARE( tags2.value( "addr:postcode" ), QString() );

  QgsOSMTags tagsNot = db.tags( false, 22222 );
  QCOMPARE( tagsNot.count(), 0 );

  // list nodes

  QgsOSMNodeIterator nodes = db.listNodes();
  QCOMPARE( nodes.next().id(), ( qint64 )11111 );
  QCOMPARE( nodes.next().id(), ( qint64 )360769661 );
  nodes.close();

  // query way

  QgsOSMWay w = db.way( 32137532 );
  QCOMPARE( w.isValid(), true );
  QCOMPARE( w.nodes().count(), 5 );
  QCOMPARE( w.nodes()[0], ( qint64 )360769661 );
  QCOMPARE( w.nodes()[1], ( qint64 )360769664 );

  QgsOSMWay wNot = db.way( 1234567 );
  QCOMPARE( wNot.isValid(), false );

  // query way tags

  QgsOSMTags tagsW = db.tags( true, 32137532 );
  QCOMPARE( tagsW.count(), 3 );
  QCOMPARE( tagsW.value( "building" ), QString( "yes" ) );

  QgsOSMTags tagsWNot = db.tags( true, 1234567 );
  QCOMPARE( tagsWNot.count(), 0 );

  // list ways

  QgsOSMWayIterator ways = db.listWays();
  QCOMPARE( ways.next().id(), ( qint64 )32137532 );
  QCOMPARE( ways.next().isValid(), false );
  ways.close();

  bool exportRes1 = db.exportSpatiaLite( QgsOSMDatabase::Point, "sl_points", QStringList( "addr:postcode" ) );
  //bool exportRes = db.exportSpatiaLite( QStringList("amenity") << "name" << "highway" );
  if ( !db.errorString().isEmpty() )
    qDebug( "EXPORT-1 ERR: %s", db.errorString().toAscii().data() );
  QCOMPARE( exportRes1, true );


  bool exportRes2 = db.exportSpatiaLite( QgsOSMDatabase::Polyline, "sl_lines", QStringList( "building" ) );
  //bool exportRes2 = db.exportSpatiaLite( QStringList("amenity") << "name" << "highway" );
  if ( !db.errorString().isEmpty() )
    qDebug( "EXPORT-2 ERR: %s", db.errorString().toAscii().data() );
  QCOMPARE( exportRes2, true );


  // TODO: test exported data
}