C++ (Cpp) OGRNASLayer Examples

Example #1

File: ogrnasdatasource.cpp Project: actian-geospatial/ogr-ingres

OGRNASLayer *OGRNASDataSource::TranslateNASSchema( GMLFeatureClass *poClass )

{
    OGRNASLayer *poLayer;
    OGRwkbGeometryType eGType 
        = (OGRwkbGeometryType) poClass->GetGeometryType();

    if( poClass->GetFeatureCount() == 0 )
        eGType = wkbUnknown;

/* -------------------------------------------------------------------- */
/*      Create an empty layer.                                          */
/* -------------------------------------------------------------------- */
    poLayer = new OGRNASLayer( poClass->GetName(), NULL, eGType, this );

/* -------------------------------------------------------------------- */
/*      Added attributes (properties).                                  */
/* -------------------------------------------------------------------- */
    for( int iField = 0; iField < poClass->GetPropertyCount(); iField++ )
    {
        GMLPropertyDefn *poProperty = poClass->GetProperty( iField );
        OGRFieldType eFType;

        if( poProperty->GetType() == GMLPT_Untyped )
            eFType = OFTString;
        else if( poProperty->GetType() == GMLPT_String )
            eFType = OFTString;
        else if( poProperty->GetType() == GMLPT_Integer )
            eFType = OFTInteger;
        else if( poProperty->GetType() == GMLPT_Real )
            eFType = OFTReal;
        else if( poProperty->GetType() == GMLPT_StringList )
            eFType = OFTStringList;
        else if( poProperty->GetType() == GMLPT_IntegerList )
            eFType = OFTIntegerList;
        else if( poProperty->GetType() == GMLPT_RealList )
            eFType = OFTRealList;
        else
            eFType = OFTString;
        
        OGRFieldDefn oField( poProperty->GetName(), eFType );
        if ( EQUALN(oField.GetNameRef(), "ogr:", 4) )
          oField.SetName(poProperty->GetName()+4);
        if( poProperty->GetWidth() > 0 )
            oField.SetWidth( poProperty->GetWidth() );

        poLayer->GetLayerDefn()->AddFieldDefn( &oField );
    }

    return poLayer;
}

Example #2

File: ogrnasdatasource.cpp Project: Mavrx-inc/gdal

OGRNASLayer *OGRNASDataSource::TranslateNASSchema( GMLFeatureClass *poClass )

{
    OGRwkbGeometryType eGType = wkbNone;

    if( poClass->GetGeometryPropertyCount() != 0 )
    {
        eGType = static_cast<OGRwkbGeometryType>(
            poClass->GetGeometryProperty(0)->GetType() );

        if( poClass->GetFeatureCount() == 0 )
            eGType = wkbUnknown;
    }

/* -------------------------------------------------------------------- */
/*      Translate SRS.                                                  */
/* -------------------------------------------------------------------- */
    const char* pszSRSName = poClass->GetSRSName();
    OGRSpatialReference* poSRS = NULL;
    if (pszSRSName)
    {
        const char *pszHandle = strrchr( pszSRSName, ':' );
        if( pszHandle != NULL )
        {
            pszHandle += 1;

            poSRS = new OGRSpatialReference();

            for( int i = 0; apszURNNames[i*2+0] != NULL; i++ )
            {
                const char *pszTarget = apszURNNames[i*2+0];
                const int nTLen = static_cast<int>(strlen(pszTarget));

                // Are we just looking for a prefix match?
                if( pszTarget[nTLen-1] == '*' )
                {
                    if( EQUALN(pszTarget,pszHandle,nTLen-1) )
                        pszSRSName = apszURNNames[i*2+1];
                }
                else
                {
                    if( EQUAL(pszTarget,pszHandle) )
                        pszSRSName = apszURNNames[i*2+1];
                }
            }

            if (poSRS->SetFromUserInput(pszSRSName) != OGRERR_NONE)
            {
                CPLDebug( "NAS", "Failed to translate srsName='%s'",
                        pszSRSName );
                delete poSRS;
                poSRS = NULL;
            }
        }
    }

/* -------------------------------------------------------------------- */
/*      Create an empty layer.                                          */
/* -------------------------------------------------------------------- */
    OGRNASLayer *poLayer =
        new OGRNASLayer( poClass->GetName(), poSRS, eGType, this );
    delete poSRS;

/* -------------------------------------------------------------------- */
/*      Added attributes (properties).                                  */
/* -------------------------------------------------------------------- */
    for( int iField = 0; iField < poClass->GetPropertyCount(); iField++ )
    {
        GMLPropertyDefn *poProperty = poClass->GetProperty( iField );
        OGRFieldType eFType;

        if( poProperty->GetType() == GMLPT_Untyped )
            eFType = OFTString;
        else if( poProperty->GetType() == GMLPT_String )
            eFType = OFTString;
        else if( poProperty->GetType() == GMLPT_Integer )
            eFType = OFTInteger;
        else if( poProperty->GetType() == GMLPT_Real )
            eFType = OFTReal;
        else if( poProperty->GetType() == GMLPT_StringList )
            eFType = OFTStringList;
        else if( poProperty->GetType() == GMLPT_IntegerList )
            eFType = OFTIntegerList;
        else if( poProperty->GetType() == GMLPT_RealList )
            eFType = OFTRealList;
        else
            eFType = OFTString;

        OGRFieldDefn oField( poProperty->GetName(), eFType );
        if ( STARTS_WITH_CI(oField.GetNameRef(), "ogr:") )
          oField.SetName(poProperty->GetName()+4);
        if( poProperty->GetWidth() > 0 )
            oField.SetWidth( poProperty->GetWidth() );

        poLayer->GetLayerDefn()->AddFieldDefn( &oField );
    }

    return poLayer;
}