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C++ OGRGeometry::closeRings方法代码示例

本文整理汇总了C++中OGRGeometry::closeRings方法的典型用法代码示例。如果您正苦于以下问题:C++ OGRGeometry::closeRings方法的具体用法?C++ OGRGeometry::closeRings怎么用?C++ OGRGeometry::closeRings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OGRGeometry的用法示例。


在下文中一共展示了OGRGeometry::closeRings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: CreateFeatureViaCopy

OGRErr OGRPGDumpLayer::CreateFeatureViaCopy( OGRFeature *poFeature )
{
    int                  i;
    CPLString            osCommand;

    /* First process geometry */
    for( i = 0; i < poFeature->GetGeomFieldCount(); i++ )
    {
        OGRGeometry *poGeometry = poFeature->GetGeomFieldRef(i);
        char *pszGeom = NULL;
        if ( NULL != poGeometry /* && (bHasWkb || bHasPostGISGeometry || bHasPostGISGeography) */)
        {
            OGRPGDumpGeomFieldDefn* poGFldDefn =
                (OGRPGDumpGeomFieldDefn*) poFeature->GetGeomFieldDefnRef(i);

            poGeometry->closeRings();
            poGeometry->setCoordinateDimension( poGFldDefn->nCoordDimension );

            //CheckGeomTypeCompatibility(poGeometry);

            /*if (bHasWkb)
                pszGeom = GeometryToBYTEA( poGeometry );
            else*/
            pszGeom = OGRGeometryToHexEWKB( poGeometry, poGFldDefn->nSRSId );
        }

        if (osCommand.size() > 0)
            osCommand += "\t";
        if ( pszGeom )
        {
            osCommand += pszGeom,
                         CPLFree( pszGeom );
        }
        else
        {
            osCommand += "\\N";
        }
    }

    /* Next process the field id column */
    int nFIDIndex = -1;
    if( bFIDColumnInCopyFields )
    {
        if (osCommand.size() > 0)
            osCommand += "\t";

        nFIDIndex = poFeatureDefn->GetFieldIndex( pszFIDColumn );

        /* Set the FID */
        if( poFeature->GetFID() != OGRNullFID )
        {
            osCommand += CPLString().Printf("%ld ", poFeature->GetFID());
        }
        else
        {
            osCommand += "\\N" ;
        }
    }


    /* Now process the remaining fields */

    int nFieldCount = poFeatureDefn->GetFieldCount();
    int bAddTab = osCommand.size() > 0;

    for( i = 0; i < nFieldCount;  i++ )
    {
        if (i == nFIDIndex)
            continue;

        const char *pszStrValue = poFeature->GetFieldAsString(i);
        char *pszNeedToFree = NULL;

        if (bAddTab)
            osCommand += "\t";
        bAddTab = TRUE;

        if( !poFeature->IsFieldSet( i ) )
        {
            osCommand += "\\N" ;

            continue;
        }

        int nOGRFieldType = poFeatureDefn->GetFieldDefn(i)->GetType();

        // We need special formatting for integer list values.
        if( nOGRFieldType == OFTIntegerList )
        {
            int nCount, nOff = 0, j;
            const int *panItems = poFeature->GetFieldAsIntegerList(i,&nCount);

            pszNeedToFree = (char *) CPLMalloc(nCount * 13 + 10);
            strcpy( pszNeedToFree, "{" );
            for( j = 0; j < nCount; j++ )
            {
                if( j != 0 )
                    strcat( pszNeedToFree+nOff, "," );

                nOff += strlen(pszNeedToFree+nOff);
//.........这里部分代码省略.........
开发者ID:lydonchandra,项目名称:MapServer-SpeedUp,代码行数:101,代码来源:ogrpgdumplayer.cpp

示例2: CreateFeature

OGRErr OGRMySQLTableLayer::CreateFeature( OGRFeature *poFeature )

{
    MYSQL_RES           *hResult=NULL;
    CPLString           osCommand;
    int                 i, bNeedComma = FALSE;

/* -------------------------------------------------------------------- */
/*      Form the INSERT command.                                        */
/* -------------------------------------------------------------------- */
    osCommand.Printf( "INSERT INTO `%s` (", poFeatureDefn->GetName() );

    if( poFeature->GetGeometryRef() != NULL )
    {
        osCommand = osCommand + "`" + pszGeomColumn + "` ";
        bNeedComma = TRUE;
    }

    if( poFeature->GetFID() != OGRNullFID && pszFIDColumn != NULL )
    {
        if( bNeedComma )
            osCommand += ", ";
        
        osCommand = osCommand + "`" + pszFIDColumn + "` ";
        bNeedComma = TRUE;
    }

    for( i = 0; i < poFeatureDefn->GetFieldCount(); i++ )
    {
        if( !poFeature->IsFieldSet( i ) )
            continue;

        if( !bNeedComma )
            bNeedComma = TRUE;
        else
            osCommand += ", ";

        osCommand = osCommand + "`"
             + poFeatureDefn->GetFieldDefn(i)->GetNameRef() + "`";
    }

    osCommand += ") VALUES (";

    // Set the geometry 
    bNeedComma = poFeature->GetGeometryRef() != NULL;
    if( poFeature->GetGeometryRef() != NULL)
    {
        char    *pszWKT = NULL;

        if( poFeature->GetGeometryRef() != NULL )
        {
            OGRGeometry *poGeom = (OGRGeometry *) poFeature->GetGeometryRef();
            
            poGeom->closeRings();
            poGeom->flattenTo2D();
            poGeom->exportToWkt( &pszWKT );
        }

        if( pszWKT != NULL )
        {

            osCommand += 
                CPLString().Printf(
                    "GeometryFromText('%s',%d) ", pszWKT, nSRSId );

            OGRFree( pszWKT );
        }
        else
            osCommand += "''";
    }


    // Set the FID 
    if( poFeature->GetFID() != OGRNullFID && pszFIDColumn != NULL )
    {
        if( bNeedComma )
            osCommand += ", ";
        osCommand += CPLString().Printf( "%ld ", poFeature->GetFID() );
        bNeedComma = TRUE;
    }

    for( i = 0; i < poFeatureDefn->GetFieldCount(); i++ )
    {
        if( !poFeature->IsFieldSet( i ) )
            continue;

        if( bNeedComma )
            osCommand += ", ";
        else
            bNeedComma = TRUE;

        const char *pszStrValue = poFeature->GetFieldAsString(i);

        if( poFeatureDefn->GetFieldDefn(i)->GetType() != OFTInteger
                 && poFeatureDefn->GetFieldDefn(i)->GetType() != OFTReal
                 && poFeatureDefn->GetFieldDefn(i)->GetType() != OFTBinary )
        {
            int         iChar;

            //We need to quote and escape string fields. 
//.........这里部分代码省略.........
开发者ID:469447793,项目名称:World-Wind-Java,代码行数:101,代码来源:ogrmysqltablelayer.cpp

示例3: CreateFeatureViaInsert

OGRErr OGRPGDumpLayer::CreateFeatureViaInsert( OGRFeature *poFeature )

{
    CPLString           osCommand;
    int                 i = 0;
    int                 bNeedComma = FALSE;
    OGRErr              eErr = OGRERR_FAILURE;
    int bEmptyInsert = FALSE;

    if( NULL == poFeature )
    {
        CPLError( CE_Failure, CPLE_AppDefined,
                  "NULL pointer to OGRFeature passed to CreateFeatureViaInsert()." );
        return eErr;
    }

    /* -------------------------------------------------------------------- */
    /*      Form the INSERT command.                                        */
    /* -------------------------------------------------------------------- */
    osCommand.Printf( "INSERT INTO %s (", pszSqlTableName );

    for(i = 0; i < poFeatureDefn->GetGeomFieldCount(); i++ )
    {
        OGRGeometry *poGeom = poFeature->GetGeomFieldRef(i);
        if( poGeom != NULL )
        {
            if( bNeedComma )
                osCommand += ", ";

            OGRGeomFieldDefn* poGFldDefn = poFeature->GetGeomFieldDefnRef(i);
            osCommand = osCommand + OGRPGDumpEscapeColumnName(poGFldDefn->GetNameRef()) + " ";
            bNeedComma = TRUE;
        }
    }

    if( poFeature->GetFID() != OGRNullFID && pszFIDColumn != NULL )
    {
        if( bNeedComma )
            osCommand += ", ";

        osCommand = osCommand + OGRPGDumpEscapeColumnName(pszFIDColumn) + " ";
        bNeedComma = TRUE;
    }

    for( i = 0; i < poFeatureDefn->GetFieldCount(); i++ )
    {
        if( !poFeature->IsFieldSet( i ) )
            continue;

        if( !bNeedComma )
            bNeedComma = TRUE;
        else
            osCommand += ", ";

        osCommand = osCommand
                    + OGRPGDumpEscapeColumnName(poFeatureDefn->GetFieldDefn(i)->GetNameRef());
    }

    if (!bNeedComma)
        bEmptyInsert = TRUE;

    osCommand += ") VALUES (";

    /* Set the geometry */
    bNeedComma = FALSE;
    for(i = 0; i < poFeatureDefn->GetGeomFieldCount(); i++ )
    {
        OGRGeometry *poGeom = poFeature->GetGeomFieldRef(i);
        if( poGeom != NULL )
        {
            char    *pszWKT = NULL;

            OGRPGDumpGeomFieldDefn* poGFldDefn =
                (OGRPGDumpGeomFieldDefn*) poFeature->GetGeomFieldDefnRef(i);

            poGeom->closeRings();
            poGeom->setCoordinateDimension( poGFldDefn->nCoordDimension );

            if( bNeedComma )
                osCommand += ", ";

            if( bWriteAsHex )
            {
                char* pszHex = OGRGeometryToHexEWKB( poGeom, poGFldDefn->nSRSId );
                osCommand += "'";
                if (pszHex)
                    osCommand += pszHex;
                osCommand += "'";
                CPLFree(pszHex);
            }
            else
            {
                poGeom->exportToWkt( &pszWKT );

                if( pszWKT != NULL )
                {
                    osCommand +=
                        CPLString().Printf(
                            "GeomFromEWKT('SRID=%d;%s'::TEXT) ", poGFldDefn->nSRSId, pszWKT );
                    OGRFree( pszWKT );
//.........这里部分代码省略.........
开发者ID:lydonchandra,项目名称:MapServer-SpeedUp,代码行数:101,代码来源:ogrpgdumplayer.cpp

示例4: ICreateFeature

OGRErr OGRMySQLTableLayer::ICreateFeature( OGRFeature *poFeature )

{
    int bNeedComma = FALSE;
    CPLString osCommand;

/* -------------------------------------------------------------------- */
/*      Form the INSERT command.                                        */
/* -------------------------------------------------------------------- */
    osCommand.Printf( "INSERT INTO `%s` (", poFeatureDefn->GetName() );

    if( poFeature->GetGeometryRef() != nullptr )
    {
        osCommand = osCommand + "`" + pszGeomColumn + "` ";
        bNeedComma = TRUE;
    }

    if( poFeature->GetFID() != OGRNullFID && pszFIDColumn != nullptr )
    {
        if( bNeedComma )
            osCommand += ", ";

        osCommand = osCommand + "`" + pszFIDColumn + "` ";
        bNeedComma = TRUE;
    }

    for( int i = 0; i < poFeatureDefn->GetFieldCount(); i++ )
    {
        if( !poFeature->IsFieldSet( i ) )
            continue;

        if( !bNeedComma )
            bNeedComma = TRUE;
        else
            osCommand += ", ";

        osCommand = osCommand + "`"
             + poFeatureDefn->GetFieldDefn(i)->GetNameRef() + "`";
    }

    osCommand += ") VALUES (";

    // Set the geometry
    bNeedComma = poFeature->GetGeometryRef() != nullptr;
    if( poFeature->GetGeometryRef() != nullptr)
    {
        char    *pszWKT = nullptr;

        if( poFeature->GetGeometryRef() != nullptr )
        {
            OGRGeometry *poGeom = (OGRGeometry *) poFeature->GetGeometryRef();

            poGeom->closeRings();
            poGeom->flattenTo2D();
            poGeom->exportToWkt( &pszWKT );
        }

        if( pszWKT != nullptr )
        {
            const char* pszAxisOrder = "";
            OGRSpatialReference* l_poSRS = GetSpatialRef();
            if( poDS->GetMajorVersion() >= 8 && !poDS->IsMariaDB() &&
                l_poSRS && l_poSRS->IsGeographic() )
            {
                pszAxisOrder = ", 'axis-order=long-lat'";
            }

            osCommand +=
                CPLString().Printf(
                    "%s('%s',%d%s) ",
                    poDS->GetMajorVersion() >= 8 ? "ST_GeomFromText" : "GeometryFromText",
                    pszWKT, nSRSId, pszAxisOrder );

            CPLFree( pszWKT );
        }
        else
            osCommand += "''";
    }

    // Set the FID
    if( poFeature->GetFID() != OGRNullFID && pszFIDColumn != nullptr )
    {
        GIntBig nFID = poFeature->GetFID();
        if( !CPL_INT64_FITS_ON_INT32(nFID) &&
            GetMetadataItem(OLMD_FID64) == nullptr )
        {
            CPLString osCommand2;
            osCommand2.Printf(
                     "ALTER TABLE `%s` MODIFY COLUMN `%s` BIGINT UNIQUE NOT NULL AUTO_INCREMENT",
                     poFeatureDefn->GetName(), pszFIDColumn );

            if( mysql_query(poDS->GetConn(), osCommand2 ) )
            {
                poDS->ReportError( osCommand2 );
                return OGRERR_FAILURE;
            }

            // make sure to attempt to free results of successful queries
            MYSQL_RES *hResult = mysql_store_result( poDS->GetConn() );
            if( hResult != nullptr )
//.........这里部分代码省略.........
开发者ID:OSGeo,项目名称:gdal,代码行数:101,代码来源:ogrmysqltablelayer.cpp


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