C++ OGRFieldDefn::GetDefault方法代码示例

本文整理汇总了C++中OGRFieldDefn::GetDefault方法的典型用法代码示例。如果您正苦于以下问题：C++ OGRFieldDefn::GetDefault方法的具体用法？C++ OGRFieldDefn::GetDefault怎么用？C++ OGRFieldDefn::GetDefault使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类OGRFieldDefn的用法示例。

在下文中一共展示了OGRFieldDefn::GetDefault方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1:

OGRErr      OGRLayerWithTransaction::AlterFieldDefn( int iField,
        OGRFieldDefn* poNewFieldDefn,
        int nFlags )
{
    if( !m_poDecoratedLayer ) return OGRERR_FAILURE;
    OGRErr eErr = m_poDecoratedLayer->AlterFieldDefn(iField, poNewFieldDefn, nFlags);
    if( m_poFeatureDefn && eErr == OGRERR_NONE )
    {
        OGRFieldDefn* poSrcFieldDefn = m_poDecoratedLayer->GetLayerDefn()->GetFieldDefn(iField);
        OGRFieldDefn* poDstFieldDefn = m_poFeatureDefn->GetFieldDefn(iField);
        poDstFieldDefn->SetName(poSrcFieldDefn->GetNameRef());
        poDstFieldDefn->SetType(poSrcFieldDefn->GetType());
        poDstFieldDefn->SetSubType(poSrcFieldDefn->GetSubType());
        poDstFieldDefn->SetWidth(poSrcFieldDefn->GetWidth());
        poDstFieldDefn->SetPrecision(poSrcFieldDefn->GetPrecision());
        poDstFieldDefn->SetDefault(poSrcFieldDefn->GetDefault());
        poDstFieldDefn->SetNullable(poSrcFieldDefn->IsNullable());
    }
    return eErr;
}

开发者ID:miccferr，项目名称:wmshp-electron，代码行数:20，代码来源:ogremulatedtransaction.cpp

示例2: ReportOnLayer


//.........这里部分代码省略.........
                if (poLayer->GetExtent(iGeom, &oExt, TRUE) == OGRERR_NONE)
                {
                    OGRGeomFieldDefn* poGFldDefn =
                        poLayer->GetLayerDefn()->GetGeomFieldDefn(iGeom);
                    CPLprintf("Extent (%s): (%f, %f) - (%f, %f)\n",
                           poGFldDefn->GetNameRef(),
                           oExt.MinX, oExt.MinY, oExt.MaxX, oExt.MaxY);
                }
            }
        }
        else if ( poLayer->GetExtent(&oExt, TRUE) == OGRERR_NONE)
        {
            CPLprintf("Extent: (%f, %f) - (%f, %f)\n",
                   oExt.MinX, oExt.MinY, oExt.MaxX, oExt.MaxY);
        }

        char    *pszWKT;

        if( nGeomFieldCount > 1 )
        {
            for(int iGeom = 0;iGeom < nGeomFieldCount; iGeom ++ )
            {
                OGRGeomFieldDefn* poGFldDefn =
                    poLayer->GetLayerDefn()->GetGeomFieldDefn(iGeom);
                OGRSpatialReference* poSRS = poGFldDefn->GetSpatialRef();
                if( poSRS == NULL )
                    pszWKT = CPLStrdup( "(unknown)" );
                else
                {
                    poSRS->exportToPrettyWkt( &pszWKT );
                }

                printf( "SRS WKT (%s):\n%s\n",
                        poGFldDefn->GetNameRef(), pszWKT );
                CPLFree( pszWKT );
            }
        }
        else
        {
            if( poLayer->GetSpatialRef() == NULL )
                pszWKT = CPLStrdup( "(unknown)" );
            else
            {
                poLayer->GetSpatialRef()->exportToPrettyWkt( &pszWKT );
            }

            printf( "Layer SRS WKT:\n%s\n", pszWKT );
            CPLFree( pszWKT );
        }

        if( strlen(poLayer->GetFIDColumn()) > 0 )
            printf( "FID Column = %s\n",
                    poLayer->GetFIDColumn() );

        for(int iGeom = 0;iGeom < nGeomFieldCount; iGeom ++ )
        {
            OGRGeomFieldDefn* poGFldDefn =
                poLayer->GetLayerDefn()->GetGeomFieldDefn(iGeom);
            if( nGeomFieldCount == 1 &&
                EQUAL(poGFldDefn->GetNameRef(), "")  && poGFldDefn->IsNullable() )
                break;
            printf( "Geometry Column ");
            if( nGeomFieldCount > 1 )
                printf("%d ", iGeom + 1);
            if( !poGFldDefn->IsNullable() )
                printf("NOT NULL ");
            printf("= %s\n", poGFldDefn->GetNameRef() );
        }

        for( int iAttr = 0; iAttr < poDefn->GetFieldCount(); iAttr++ )
        {
            OGRFieldDefn    *poField = poDefn->GetFieldDefn( iAttr );
            const char* pszType = (poField->GetSubType() != OFSTNone) ?
                CPLSPrintf("%s(%s)",
                           poField->GetFieldTypeName( poField->GetType() ),
                           poField->GetFieldSubTypeName(poField->GetSubType())) :
                poField->GetFieldTypeName( poField->GetType() );
            printf( "%s: %s (%d.%d)",
                    poField->GetNameRef(),
                    pszType,
                    poField->GetWidth(),
                    poField->GetPrecision() );
            if( !poField->IsNullable() )
                printf(" NOT NULL");
            if( poField->GetDefault() != NULL )
                printf(" DEFAULT %s", poField->GetDefault() );
            printf( "\n" );
        }
    }

/* -------------------------------------------------------------------- */
/*      Read, and dump features.                                        */
/* -------------------------------------------------------------------- */
    OGRFeature  *poFeature = NULL;
    while( (poFeature = poLayer->GetNextFeature()) != NULL )
    {
        poFeature->DumpReadable( NULL );
        OGRFeature::DestroyFeature( poFeature );
    }
}

开发者ID:rashadkm，项目名称:lib_gdal，代码行数:101，代码来源:gnmanalyse.cpp

示例3: RunDeferedCreationIfNecessary

OGRErr OGRCARTODBTableLayer::RunDeferedCreationIfNecessary()
{
    if( !bDeferedCreation )
        return OGRERR_NONE;
    bDeferedCreation = FALSE;

    CPLString osSQL;
    osSQL.Printf("CREATE TABLE %s ( %s SERIAL,",
                 OGRCARTODBEscapeIdentifier(osName).c_str(),
                 osFIDColName.c_str());

    int nSRID = 0;
    OGRwkbGeometryType eGType = GetGeomType();
    if( eGType != wkbNone )
    {
        CPLString osGeomType = OGRToOGCGeomType(eGType);
        if( wkbHasZ(eGType) )
            osGeomType += "Z";

        OGRCartoDBGeomFieldDefn *poFieldDefn =
            (OGRCartoDBGeomFieldDefn *)poFeatureDefn->GetGeomFieldDefn(0);
        nSRID = poFieldDefn->nSRID;

        osSQL += CPLSPrintf("%s GEOMETRY(%s, %d)%s, %s GEOMETRY(%s, %d),",
                 "the_geom",
                 osGeomType.c_str(),
                 nSRID,
                 (!poFieldDefn->IsNullable()) ? " NOT NULL" : "",
                 "the_geom_webmercator",
                 osGeomType.c_str(),
                 3857);
    }

    for( int i = 0; i < poFeatureDefn->GetFieldCount(); i++ )
    {
        OGRFieldDefn* poFieldDefn = poFeatureDefn->GetFieldDefn(i);
        if( strcmp(poFieldDefn->GetNameRef(), osFIDColName) != 0 )
        {
            osSQL += OGRCARTODBEscapeIdentifier(poFieldDefn->GetNameRef());
            osSQL += " ";
            osSQL += OGRPGCommonLayerGetType(*poFieldDefn, FALSE, TRUE);
            if( !poFieldDefn->IsNullable() )
                osSQL += " NOT NULL";
            if( poFieldDefn->GetDefault() != NULL && !poFieldDefn->IsDefaultDriverSpecific() )
            {
                osSQL += " DEFAULT ";
                osSQL += poFieldDefn->GetDefault();
            }
            osSQL += ",";
        }
    }

    osSQL += CPLSPrintf("PRIMARY KEY (%s) )", osFIDColName.c_str());
    
    CPLString osSeqName(OGRCARTODBEscapeIdentifier(CPLSPrintf("%s_%s_seq",
                                osName.c_str(), osFIDColName.c_str())));

    osSQL += ";";
    osSQL += CPLSPrintf("DROP SEQUENCE IF EXISTS %s CASCADE", osSeqName.c_str());
    osSQL += ";";
    osSQL += CPLSPrintf("CREATE SEQUENCE %s START 1", osSeqName.c_str());
    osSQL += ";";
    osSQL += CPLSPrintf("ALTER TABLE %s ALTER COLUMN %s SET DEFAULT nextval('%s')",
                        OGRCARTODBEscapeIdentifier(osName).c_str(),
                        osFIDColName.c_str(), osSeqName.c_str());

    json_object* poObj = poDS->RunSQL(osSQL);
    if( poObj == NULL )
        return OGRERR_FAILURE;
    json_object_put(poObj);

    if( bCartoDBify )
    {
        if( nSRID != 4326 )
        {
            if( eGType != wkbNone )
            {
                CPLError(CE_Warning, CPLE_AppDefined,
                        "Cannot register table in dashboard with "
                        "cdb_cartodbfytable() since its SRS is not EPSG:4326");
            }
        }
        else
        {
            if( poDS->GetCurrentSchema() == "public" )
                osSQL.Printf("SELECT cdb_cartodbfytable('%s')",
                                    OGRCARTODBEscapeLiteral(osName).c_str());
            else
                osSQL.Printf("SELECT cdb_cartodbfytable('%s', '%s')",
                                    OGRCARTODBEscapeLiteral(poDS->GetCurrentSchema()).c_str(),
                                    OGRCARTODBEscapeLiteral(osName).c_str());

            poObj = poDS->RunSQL(osSQL);
            if( poObj == NULL )
                return OGRERR_FAILURE;
            json_object_put(poObj);
        }
    }

    return OGRERR_NONE;
//.........这里部分代码省略.........

开发者ID:rashadkm，项目名称:lib_gdal，代码行数:101，代码来源:ogrcartodbtablelayer.cpp

示例4: ReportOnLayer


//.........这里部分代码省略.........
                CPLFree(pszWKT);
                if( poSRS )
                {
                    displayDataAxisMapping(poSRS);
                }
            }
        }
        else
        {
            char *pszWKT = nullptr;
            auto poSRS = poLayer->GetSpatialRef();
            if( poSRS == nullptr )
            {
                pszWKT = CPLStrdup("(unknown)");
            }
            else
            {
                poSRS->exportToPrettyWkt(&pszWKT);
            }

            printf("Layer SRS WKT:\n%s\n", pszWKT);
            CPLFree(pszWKT);
            if( poSRS )
            {
                displayDataAxisMapping(poSRS);
            }
        }

        if( strlen(poLayer->GetFIDColumn()) > 0 )
            printf("FID Column = %s\n",
                   poLayer->GetFIDColumn());

        for(int iGeom = 0;iGeom < nGeomFieldCount; iGeom ++ )
        {
            OGRGeomFieldDefn* poGFldDefn =
                poLayer->GetLayerDefn()->GetGeomFieldDefn(iGeom);
            if( nGeomFieldCount == 1 &&
                EQUAL(poGFldDefn->GetNameRef(), "") &&
                poGFldDefn->IsNullable() )
                break;
            printf("Geometry Column ");
            if( nGeomFieldCount > 1 )
                printf("%d ", iGeom + 1);
            if( !poGFldDefn->IsNullable() )
                printf("NOT NULL ");
            printf("= %s\n", poGFldDefn->GetNameRef());
        }

        for( int iAttr = 0; iAttr < poDefn->GetFieldCount(); iAttr++ )
        {
            OGRFieldDefn *poField = poDefn->GetFieldDefn(iAttr);
            const char* pszType = (poField->GetSubType() != OFSTNone)
                ? CPLSPrintf(
                      "%s(%s)",
                      poField->GetFieldTypeName(poField->GetType()),
                      poField->GetFieldSubTypeName(poField->GetSubType()))
                : poField->GetFieldTypeName(poField->GetType());
            printf("%s: %s (%d.%d)",
                   poField->GetNameRef(),
                   pszType,
                   poField->GetWidth(),
                   poField->GetPrecision());
            if( !poField->IsNullable() )
                printf(" NOT NULL");
            if( poField->GetDefault() != nullptr )
                printf(" DEFAULT %s", poField->GetDefault());
            printf("\n");
        }
    }

/* -------------------------------------------------------------------- */
/*      Read, and dump features.                                        */
/* -------------------------------------------------------------------- */

    if( nFetchFID == OGRNullFID && !bSummaryOnly )
    {
        OGRFeature *poFeature = nullptr;
        while( (poFeature = poLayer->GetNextFeature()) != nullptr )
        {
            if( !bSuperQuiet )
                poFeature->DumpReadable(nullptr, papszOptions);
            OGRFeature::DestroyFeature(poFeature);
        }
    }
    else if( nFetchFID != OGRNullFID )
    {
        OGRFeature *poFeature = poLayer->GetFeature(nFetchFID);
        if( poFeature == nullptr )
        {
            printf("Unable to locate feature id " CPL_FRMT_GIB
                   " on this layer.\n",
                   nFetchFID);
        }
        else
        {
            poFeature->DumpReadable(nullptr, papszOptions);
            OGRFeature::DestroyFeature(poFeature);
        }
    }
}

开发者ID:AsgerPetersen，项目名称:gdal，代码行数:101，代码来源:ogrinfo.cpp

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