C++ OGRStyleTool::GetType方法代码示例

OGRErr OGRDXFWriterLayer::WritePOINT( OGRFeature *poFeature )

{
    WriteValue( 0, "POINT" );
    WriteCore( poFeature );
    WriteValue( 100, "AcDbEntity" );
    WriteValue( 100, "AcDbPoint" );

    // Write style pen color
    OGRStyleTool *poTool = nullptr;
    OGRStyleMgr oSM;
    if( poFeature->GetStyleString() != nullptr )
    {
        oSM.InitFromFeature( poFeature );

        if( oSM.GetPartCount() > 0 )
            poTool = oSM.GetPart(0);
    }
    if( poTool && poTool->GetType() == OGRSTCPen )
    {
        OGRStylePen *poPen = (OGRStylePen *) poTool;
        GBool  bDefault;

        if( poPen->Color(bDefault) != nullptr && !bDefault )
            WriteValue( 62, ColorStringToDXFColor( poPen->Color(bDefault) ) );
    }
    delete poTool;

    OGRPoint *poPoint = poFeature->GetGeometryRef()->toPoint();

    WriteValue( 10, poPoint->getX() );
    if( !WriteValue( 20, poPoint->getY() ) )
        return OGRERR_FAILURE;

    if( poPoint->getGeometryType() == wkbPoint25D )
    {
        if( !WriteValue( 30, poPoint->getZ() ) )
            return OGRERR_FAILURE;
    }

    return OGRERR_NONE;
}

void addstylestring2kml (
    const char *pszStyleString,
    StylePtr poKmlStyle,
    KmlFactory * poKmlFactory,
    PlacemarkPtr poKmlPlacemark,
    OGRFeature * poOgrFeat )
{

    LineStylePtr poKmlLineStyle = NULL;
    PolyStylePtr poKmlPolyStyle = NULL;
    IconStylePtr poKmlIconStyle = NULL;
    LabelStylePtr poKmlLabelStyle = NULL;
    
    /***** just bail now if stylestring is empty *****/

    if ( !pszStyleString || !*pszStyleString ) {
        return;
    }

    /***** create and init a style mamager with the style string *****/

    OGRStyleMgr *poOgrSM = new OGRStyleMgr;

    poOgrSM->InitStyleString ( pszStyleString );

    /***** loop though the style parts *****/

    int i;

    for ( i = 0; i < poOgrSM->GetPartCount ( NULL ); i++ ) {
        OGRStyleTool *poOgrST = poOgrSM->GetPart ( i, NULL );

        if ( !poOgrST ) {
            continue;
        }
        
        switch ( poOgrST->GetType (  ) ) {
        case OGRSTCPen:
            {
                GBool nullcheck;

                poKmlLineStyle = poKmlFactory->CreateLineStyle (  );

                OGRStylePen *poStylePen = ( OGRStylePen * ) poOgrST;

                /***** pen color *****/

                int nR,
                    nG,
                    nB,
                    nA;

                const char *pszcolor = poStylePen->Color ( nullcheck );

                if ( !nullcheck
                     && poStylePen->GetRGBFromString ( pszcolor, nR, nG, nB, nA ) ) {
                    poKmlLineStyle->set_color ( Color32 ( nA, nB, nG, nR ) );
                }
                double dfWidth = poStylePen->Width ( nullcheck );

                if ( nullcheck )
                    dfWidth = 1.0;

                poKmlLineStyle->set_width ( dfWidth );
                
                break;
            }
        case OGRSTCBrush:
            {
                GBool nullcheck;

                poKmlPolyStyle = poKmlFactory->CreatePolyStyle (  );

                OGRStyleBrush *poStyleBrush = ( OGRStyleBrush * ) poOgrST;

                /***** brush color *****/

                int nR,
                    nG,
                    nB,
                    nA;

                const char *pszcolor = poStyleBrush->ForeColor ( nullcheck );

                if ( !nullcheck
                     && poStyleBrush->GetRGBFromString ( pszcolor, nR, nG, nB, nA ) ) {
                    poKmlPolyStyle->set_color ( Color32 ( nA, nB, nG, nR ) );
                }
                

                break;
            }
        case OGRSTCSymbol:
            {
                GBool nullcheck;
                GBool nullcheck2;

                OGRStyleSymbol *poStyleSymbol = ( OGRStyleSymbol * ) poOgrST;

                /***** id (kml icon) *****/
//.........这里部分代码省略.........

void kml2stylestring (
    StylePtr poKmlStyle,
    OGRStyleMgr * poOgrSM )

{

    OGRStyleMgr * poOgrNewSM ;
    OGRStyleTool *poOgrST = NULL;
    OGRStyleTool *poOgrTmpST = NULL;
    int i;

    poOgrNewSM = new OGRStyleMgr( NULL );
    
    /***** linestyle / pen *****/

    if ( poKmlStyle->has_linestyle (  ) ) {

        poOgrNewSM->InitStyleString ( NULL );
        
        LineStylePtr poKmlLineStyle = poKmlStyle->get_linestyle (  );

        poOgrTmpST = NULL;
        for ( i = 0; i < poOgrSM->GetPartCount ( NULL ); i++ ) {
            poOgrST = poOgrSM->GetPart ( i, NULL );

            if ( !poOgrST )
                continue;
        
            if ( poOgrST->GetType ( ) == OGRSTCPen ) {
                poOgrTmpST = poOgrST;
            }
            else {
                poOgrNewSM->AddPart ( poOgrST );
                delete poOgrST;
            }
        }
        
        OGRStylePen *poOgrStylePen = kml2pen ( poKmlLineStyle,
                                               ( OGRStylePen *) poOgrTmpST);
        
        poOgrNewSM->AddPart ( poOgrStylePen );

        delete poOgrStylePen;
        poOgrSM->InitStyleString ( poOgrNewSM->GetStyleString(NULL) );
        
    }

    /***** polystyle / brush *****/

    if ( poKmlStyle->has_polystyle (  ) ) {

        poOgrNewSM->InitStyleString ( NULL );

        PolyStylePtr poKmlPolyStyle = poKmlStyle->get_polystyle (  );

        poOgrTmpST = NULL;
        for ( i = 0; i < poOgrSM->GetPartCount ( NULL ); i++ ) {
            poOgrST = poOgrSM->GetPart ( i, NULL );

            if ( !poOgrST )
                continue;
        
            if ( poOgrST->GetType ( ) == OGRSTCBrush ) {
                poOgrTmpST = poOgrST;
            }
            else {
                poOgrNewSM->AddPart ( poOgrST );
                delete poOgrST;
            }
        }

        OGRStyleBrush *poOgrStyleBrush = kml2brush ( poKmlPolyStyle,
                                                     ( OGRStyleBrush *) poOgrTmpST );

        poOgrNewSM->AddPart ( poOgrStyleBrush );

        delete poOgrStyleBrush;
        poOgrSM->InitStyleString ( poOgrNewSM->GetStyleString(NULL) );

    }

    /***** iconstyle / symbol *****/

    if ( poKmlStyle->has_iconstyle (  ) ) {
        
        poOgrNewSM->InitStyleString ( NULL );

        IconStylePtr poKmlIconStyle = poKmlStyle->get_iconstyle (  );

        poOgrTmpST = NULL;
        for ( i = 0; i < poOgrSM->GetPartCount ( NULL ); i++ ) {
            poOgrST = poOgrSM->GetPart ( i, NULL );

            if ( !poOgrST )
                continue;
        
            if ( poOgrST->GetType ( ) == OGRSTCSymbol ) {
                poOgrTmpST = poOgrST;
            }
            else {
//.........这里部分代码省略.........

OGRErr OGRJMLWriterLayer::ICreateFeature( OGRFeature *poFeature )

{
    /* Finish column declaration if we haven't yet created a feature */
    if( !bFeaturesWritten )
    {
        if( bAddOGRStyleField && poFeatureDefn->GetFieldIndex("OGR_STYLE") < 0 )
        {
            WriteColumnDeclaration( "OGR_STYLE", "STRING" );
        }
        if( bAddRGBField && poFeatureDefn->GetFieldIndex("R_G_B") < 0 )
        {
            WriteColumnDeclaration( "R_G_B", "STRING" );
        }
        VSIFPrintfL(fp, "</ColumnDefinitions>\n</JCSGMLInputTemplate>\n<featureCollection>\n");
        bFeaturesWritten = TRUE;
    }

    if( bClassicGML )
        VSIFPrintfL(fp, "   <featureMember>\n");
    VSIFPrintfL(fp, "     <feature>\n");

    /* Add geometry */
    VSIFPrintfL(fp, "          <geometry>\n");
    OGRGeometry* poGeom = poFeature->GetGeometryRef();
    if( poGeom != NULL )
    {
        char* pszGML = poGeom->exportToGML();
        VSIFPrintfL(fp, "                %s\n", pszGML);
        CPLFree(pszGML);
    }
    else
    {
        VSIFPrintfL(fp, "                %s\n",
                    "<gml:MultiGeometry></gml:MultiGeometry>");
    }
    VSIFPrintfL(fp, "          </geometry>\n");

    /* Add fields */
    for(int i=0;i<poFeature->GetFieldCount();i++)
    {
        char* pszName = OGRGetXML_UTF8_EscapedString(
                                poFeatureDefn->GetFieldDefn(i)->GetNameRef() );
        if( bClassicGML )
            VSIFPrintfL(fp, "          <%s>", pszName);
        else
            VSIFPrintfL(fp, "          <property name=\"%s\">", pszName);
        if( poFeature->IsFieldSet(i) )
        {
            OGRFieldType eType = poFeatureDefn->GetFieldDefn(i)->GetType();
            if( eType == OFTString )
            {
                char* pszValue = OGRGetXML_UTF8_EscapedString(
                                            poFeature->GetFieldAsString(i) );
                VSIFPrintfL(fp, "%s", pszValue);
                CPLFree(pszValue);
            }
            else if( eType == OFTDateTime )
            {
                int nYear, nMonth, nDay, nHour, nMinute, nTZFlag;
                float fSecond;
                poFeature->GetFieldAsDateTime(i, &nYear, &nMonth, &nDay,
                                            &nHour, &nMinute, &fSecond, &nTZFlag);
                /* When writing time zone, OpenJUMP expects .XXX seconds */
                /* to be written */
                if( nTZFlag > 1 || OGR_GET_MS(fSecond) != 0 )
                    VSIFPrintfL(fp, "%04d-%02d-%02dT%02d:%02d:%06.3f",
                                nYear, nMonth, nDay,
                                nHour, nMinute, fSecond);
                else
                    VSIFPrintfL(fp, "%04d-%02d-%02dT%02d:%02d:%02d",
                                nYear, nMonth, nDay,
                                nHour, nMinute, (int)fSecond);
                if( nTZFlag > 1 )
                {
                    int nOffset = (nTZFlag - 100) * 15;
                    int nHours = (int) (nOffset / 60);  // round towards zero
                    int nMinutes = ABS(nOffset - nHours * 60);

                    if( nOffset < 0 )
                    {
                        VSIFPrintfL(fp, "-" );
                        nHours = ABS(nHours);
                    }
                    else
                        VSIFPrintfL(fp, "+" );

                    VSIFPrintfL(fp, "%02d%02d", nHours, nMinutes );
                }
            }
            else
            {
                VSIFPrintfL(fp, "%s", poFeature->GetFieldAsString(i));
            }
        }
        if( bClassicGML )
            VSIFPrintfL(fp, "</%s>\n", pszName);
        else
            VSIFPrintfL(fp, "</property>\n");
        CPLFree(pszName);
//.........这里部分代码省略.........

//.........这里部分代码省略.........
        WriteValue( 10, 0.0 );
        WriteValue( 20, 0.0 );
        WriteValue( 30, 0.0 );
    }
    else
        WriteValue( 100, "AcDbPolyline" );
    if( EQUAL( poGeom->getGeometryName(), "LINEARRING" ) )
        WriteValue( 70, 1 + (bHasDifferentZ ? 8 : 0) );
    else
        WriteValue( 70, 0 + (bHasDifferentZ ? 8 : 0) );
    if( !bHasDifferentZ )
        WriteValue( 90, poLS->getNumPoints() );
    else
        WriteValue( 66, "1" );  // Vertex Flag

/* -------------------------------------------------------------------- */
/*      Do we have styling information?                                 */
/* -------------------------------------------------------------------- */
    OGRStyleTool *poTool = nullptr;
    OGRStyleMgr oSM;

    if( poFeature->GetStyleString() != nullptr )
    {
        oSM.InitFromFeature( poFeature );

        if( oSM.GetPartCount() > 0 )
            poTool = oSM.GetPart(0);
    }

/* -------------------------------------------------------------------- */
/*      Handle a PEN tool to control drawing color and width.           */
/*      Perhaps one day also dottedness, etc.                           */
/* -------------------------------------------------------------------- */
    if( poTool && poTool->GetType() == OGRSTCPen )
    {
        OGRStylePen *poPen = (OGRStylePen *) poTool;
        GBool bDefault;

        if( poPen->Color(bDefault) != nullptr && !bDefault )
            WriteValue( 62, ColorStringToDXFColor( poPen->Color(bDefault) ) );

        // we want to fetch the width in ground units.
        poPen->SetUnit( OGRSTUGround, 1.0 );
        const double dfWidth = poPen->Width(bDefault);

        if( !bDefault )
            WriteValue( 370, (int) floor(dfWidth * 100 + 0.5) );
    }

/* -------------------------------------------------------------------- */
/*      Do we have a Linetype for the feature?                          */
/* -------------------------------------------------------------------- */
    CPLString osLineType = poFeature->GetFieldAsString( "Linetype" );
    double dfLineTypeScale = 0.0;

    bool bGotLinetype = false;

    if( !osLineType.empty() )
    {
        std::vector<double> adfLineType =
            poDS->oHeaderDS.LookupLineType( osLineType );

        if( adfLineType.empty() && oNewLineTypes.count(osLineType) > 0 )
            adfLineType = oNewLineTypes[osLineType];

        if( !adfLineType.empty() )

OGRErr OGRDXFWriterLayer::WriteTEXT( OGRFeature *poFeature )

{
    WriteValue( 0, "MTEXT" );
    WriteCore( poFeature );
    WriteValue( 100, "AcDbEntity" );
    WriteValue( 100, "AcDbMText" );

/* -------------------------------------------------------------------- */
/*      Do we have styling information?                                 */
/* -------------------------------------------------------------------- */
    OGRStyleTool *poTool = nullptr;
    OGRStyleMgr oSM;

    if( poFeature->GetStyleString() != nullptr )
    {
        oSM.InitFromFeature( poFeature );

        if( oSM.GetPartCount() > 0 )
            poTool = oSM.GetPart(0);
    }

/* ==================================================================== */
/*      Process the LABEL tool.                                         */
/* ==================================================================== */
    double dfDx = 0.0;
    double dfDy = 0.0;

    if( poTool && poTool->GetType() == OGRSTCLabel )
    {
        OGRStyleLabel *poLabel = (OGRStyleLabel *) poTool;
        GBool  bDefault;

/* -------------------------------------------------------------------- */
/*      Color                                                           */
/* -------------------------------------------------------------------- */
        if( poLabel->ForeColor(bDefault) != nullptr && !bDefault )
            WriteValue( 62, ColorStringToDXFColor(
                            poLabel->ForeColor(bDefault) ) );

/* -------------------------------------------------------------------- */
/*      Angle                                                           */
/* -------------------------------------------------------------------- */
        const double dfAngle = poLabel->Angle(bDefault);

        if( !bDefault )
            WriteValue( 50, dfAngle );

/* -------------------------------------------------------------------- */
/*      Height - We need to fetch this in georeferenced units - I'm     */
/*      doubt the default translation mechanism will be much good.      */
/* -------------------------------------------------------------------- */
        poTool->SetUnit( OGRSTUGround );
        const double dfHeight = poLabel->Size(bDefault);

        if( !bDefault )
            WriteValue( 40, dfHeight );

/* -------------------------------------------------------------------- */
/*      Anchor / Attachment Point                                       */
/* -------------------------------------------------------------------- */
        const int nAnchor = poLabel->Anchor(bDefault);

        if( !bDefault )
        {
            const static int anAnchorMap[] =
                { -1, 7, 8, 9, 4, 5, 6, 1, 2, 3, 7, 8, 9 };

            if( nAnchor > 0 && nAnchor < 13 )
                WriteValue( 71, anAnchorMap[nAnchor] );
        }

/* -------------------------------------------------------------------- */
/*      Offset                                                          */
/* -------------------------------------------------------------------- */
        dfDx = poLabel->SpacingX(bDefault);
        dfDy = poLabel->SpacingY(bDefault);

/* -------------------------------------------------------------------- */
/*      Escape the text, and convert to ISO8859.                        */
/* -------------------------------------------------------------------- */
        const char *pszText = poLabel->TextString( bDefault );

        if( pszText != nullptr && !bDefault )
        {
            CPLString osEscaped = TextEscape( pszText );
            while( osEscaped.size() > 250 )
            {
                WriteValue( 3, osEscaped.substr( 0, 250 ).c_str() );
                osEscaped.erase( 0, 250 );
            }
            WriteValue( 1, osEscaped );
        }

/* -------------------------------------------------------------------- */
/*      Store the text style in the map.                                */
/* -------------------------------------------------------------------- */
        std::map<CPLString, CPLString> oTextStyleDef =
            PrepareTextStyleDefinition( poLabel );
        CPLString osStyleName;
//.........这里部分代码省略.........

OGRErr OGRDXFWriterLayer::WriteHATCH( OGRFeature *poFeature,
                                      OGRGeometry *poGeom )

{
/* -------------------------------------------------------------------- */
/*      For now we handle multipolygons by writing a series of          */
/*      entities.                                                       */
/* -------------------------------------------------------------------- */
    if( poGeom == nullptr )
        poGeom = poFeature->GetGeometryRef();

    if ( poGeom->IsEmpty() )
    {
        return OGRERR_NONE;
    }

    if( wkbFlatten(poGeom->getGeometryType()) == wkbMultiPolygon )
    {
        OGRErr eErr = OGRERR_NONE;
        for( auto&& poMember: poGeom->toMultiPolygon() )
        {
            eErr = WriteHATCH( poFeature, poMember );
            if( eErr != OGRERR_NONE )
                break;
        }

        return eErr;
    }

/* -------------------------------------------------------------------- */
/*      Do we now have a geometry we can work with?                     */
/* -------------------------------------------------------------------- */
    if( wkbFlatten(poGeom->getGeometryType()) != wkbPolygon &&
        wkbFlatten(poGeom->getGeometryType()) != wkbTriangle )
    {
        return OGRERR_UNSUPPORTED_GEOMETRY_TYPE;
    }

/* -------------------------------------------------------------------- */
/*      Write as a hatch.                                               */
/* -------------------------------------------------------------------- */
    WriteValue( 0, "HATCH" );
    WriteCore( poFeature );
    WriteValue( 100, "AcDbEntity" );
    WriteValue( 100, "AcDbHatch" );

    // Figure out "average" elevation
    OGREnvelope3D oEnv;
    poGeom->getEnvelope( &oEnv );
    WriteValue( 10, 0 ); // elevation point X = 0
    WriteValue( 20, 0 ); // elevation point Y = 0
    // elevation point Z = constant elevation
    WriteValue( 30, oEnv.MinZ + ( oEnv.MaxZ - oEnv.MinZ ) / 2 );

    WriteValue(210, 0 ); // extrusion direction X
    WriteValue(220, 0 ); // extrusion direction Y
    WriteValue(230,1.0); // extrusion direction Z

    WriteValue( 2, "SOLID" ); // fill pattern
    WriteValue( 70, 1 ); // solid fill
    WriteValue( 71, 0 ); // associativity

/* -------------------------------------------------------------------- */
/*      Do we have styling information?                                 */
/* -------------------------------------------------------------------- */
    OGRStyleTool *poTool = nullptr;
    OGRStyleMgr oSM;

    if( poFeature->GetStyleString() != nullptr )
    {
        oSM.InitFromFeature( poFeature );

        if( oSM.GetPartCount() > 0 )
            poTool = oSM.GetPart(0);
    }
    // Write style brush fore color
    if( poTool && poTool->GetType() == OGRSTCBrush )
    {
        OGRStyleBrush *poBrush = (OGRStyleBrush *) poTool;
        GBool  bDefault;

        if( poBrush->ForeColor(bDefault) != nullptr && !bDefault )
            WriteValue( 62, ColorStringToDXFColor( poBrush->ForeColor(bDefault) ) );
    }
    delete poTool;

/* -------------------------------------------------------------------- */
/*      Handle a PEN tool to control drawing color and width.           */
/*      Perhaps one day also dottedness, etc.                           */
/* -------------------------------------------------------------------- */
#ifdef notdef
    if( poTool && poTool->GetType() == OGRSTCPen )
    {
        OGRStylePen *poPen = (OGRStylePen *) poTool;
        GBool  bDefault;

        if( poPen->Color(bDefault) != NULL && !bDefault )
            WriteValue( 62, ColorStringToDXFColor( poPen->Color(bDefault) ) );

        double dfWidthInMM = poPen->Width(bDefault);
//.........这里部分代码省略.........

OGRErr OGRDXFWriterLayer::WriteINSERT( OGRFeature *poFeature )

{
    WriteValue( 0, "INSERT" );
    WriteCore( poFeature );
    WriteValue( 100, "AcDbEntity" );
    WriteValue( 100, "AcDbBlockReference" );
    WriteValue( 2, poFeature->GetFieldAsString("BlockName") );

    // Write style symbol color
    OGRStyleTool *poTool = nullptr;
    OGRStyleMgr oSM;
    if( poFeature->GetStyleString() != nullptr )
    {
        oSM.InitFromFeature( poFeature );

        if( oSM.GetPartCount() > 0 )
            poTool = oSM.GetPart(0);
    }
    if( poTool && poTool->GetType() == OGRSTCSymbol )
    {
        OGRStyleSymbol *poSymbol = (OGRStyleSymbol *) poTool;
        GBool bDefault;

        if( poSymbol->Color(bDefault) != nullptr && !bDefault )
            WriteValue( 62, ColorStringToDXFColor( poSymbol->Color(bDefault) ) );
    }
    delete poTool;

/* -------------------------------------------------------------------- */
/*      Write location in OCS.                                          */
/* -------------------------------------------------------------------- */
    int nCoordCount = 0;
    const double *padfCoords =
        poFeature->GetFieldAsDoubleList( "BlockOCSCoords", &nCoordCount );

    if( nCoordCount == 3 )
    {
        WriteValue( 10, padfCoords[0] );
        WriteValue( 20, padfCoords[1] );
        if( !WriteValue( 30, padfCoords[2] ) )
            return OGRERR_FAILURE;
    }
    else
    {
        // We don't have an OCS; we will just assume that the location of
        // the geometry (in WCS) is the correct insertion point.
        OGRPoint *poPoint = poFeature->GetGeometryRef()->toPoint();

        WriteValue( 10, poPoint->getX() );
        if( !WriteValue( 20, poPoint->getY() ) )
            return OGRERR_FAILURE;

        if( poPoint->getGeometryType() == wkbPoint25D )
        {
            if( !WriteValue( 30, poPoint->getZ() ) )
                return OGRERR_FAILURE;
        }
    }

/* -------------------------------------------------------------------- */
/*      Write scaling.                                                  */
/* -------------------------------------------------------------------- */
    int nScaleCount = 0;
    const double *padfScale =
        poFeature->GetFieldAsDoubleList( "BlockScale", &nScaleCount );

    if( nScaleCount == 3 )
    {
        WriteValue( 41, padfScale[0] );
        WriteValue( 42, padfScale[1] );
        WriteValue( 43, padfScale[2] );
    }

/* -------------------------------------------------------------------- */
/*      Write rotation.                                                 */
/* -------------------------------------------------------------------- */
    const double dfAngle = poFeature->GetFieldAsDouble( "BlockAngle" );

    if( dfAngle != 0.0 )
    {
        WriteValue( 50, dfAngle ); // degrees
    }

/* -------------------------------------------------------------------- */
/*      Write OCS normal vector.                                        */
/* -------------------------------------------------------------------- */
    int nOCSCount = 0;
    const double *padfOCS =
        poFeature->GetFieldAsDoubleList( "BlockOCSNormal", &nOCSCount );

    if( nOCSCount == 3 )
    {
        WriteValue( 210, padfOCS[0] );
        WriteValue( 220, padfOCS[1] );
        WriteValue( 230, padfOCS[2] );
    }

    return OGRERR_NONE;
}

//.........这里部分代码省略.........
        WriteValue( 10, 0.0 );
        WriteValue( 20, 0.0 );
        WriteValue( 30, 0.0 );
    }
    else
        WriteValue( 100, "AcDbPolyline" );
    if( EQUAL( poGeom->getGeometryName(), "LINEARRING" ) )
        WriteValue( 70, 1 + (bHasDifferentZ ? 8 : 0) );
    else
        WriteValue( 70, 0 + (bHasDifferentZ ? 8 : 0) );
    if( !bHasDifferentZ )
        WriteValue( 90, poLS->getNumPoints() );
    else
        WriteValue( 66, "1" );  // Vertex Flag

/* -------------------------------------------------------------------- */
/*      Do we have styling information?                                 */
/* -------------------------------------------------------------------- */
    OGRStyleTool *poTool = NULL;
    OGRStyleMgr oSM;

    if( poFeature->GetStyleString() != NULL )
    {
        oSM.InitFromFeature( poFeature );

        if( oSM.GetPartCount() > 0 )
            poTool = oSM.GetPart(0);
    }

/* -------------------------------------------------------------------- */
/*      Handle a PEN tool to control drawing color and width.           */
/*      Perhaps one day also dottedness, etc.                           */
/* -------------------------------------------------------------------- */
    if( poTool && poTool->GetType() == OGRSTCPen )
    {
        OGRStylePen *poPen = (OGRStylePen *) poTool;
        GBool  bDefault;

        if( poPen->Color(bDefault) != NULL && !bDefault )
            WriteValue( 62, ColorStringToDXFColor( poPen->Color(bDefault) ) );

        // we want to fetch the width in ground units. 
        poPen->SetUnit( OGRSTUGround, 1.0 );
        double dfWidth = poPen->Width(bDefault);

        if( !bDefault )
            WriteValue( 370, (int) floor(dfWidth * 100 + 0.5) );
    }

/* -------------------------------------------------------------------- */
/*      Do we have a Linetype for the feature?                          */
/* -------------------------------------------------------------------- */
    CPLString osLineType = poFeature->GetFieldAsString( "Linetype" );

    if( osLineType.size() > 0 
        && (poDS->oHeaderDS.LookupLineType( osLineType ) != NULL 
            || oNewLineTypes.count(osLineType) > 0 ) )
    {
        // Already define -> just reference it.
        WriteValue( 6, osLineType );
    }
    else if( poTool != NULL && poTool->GetType() == OGRSTCPen )
    {
        CPLString osDefinition = PrepareLineTypeDefinition( poFeature, 
                                                            poTool );

OGRErr OGRDXFWriterLayer::WriteTEXT( OGRFeature *poFeature )

{
    WriteValue( 0, "MTEXT" );
    WriteCore( poFeature );
    WriteValue( 100, "AcDbEntity" );
    WriteValue( 100, "AcDbMText" );

/* -------------------------------------------------------------------- */
/*      Do we have styling information?                                 */
/* -------------------------------------------------------------------- */
    OGRStyleTool *poTool = NULL;
    OGRStyleMgr oSM;

    if( poFeature->GetStyleString() != NULL )
    {
        oSM.InitFromFeature( poFeature );

        if( oSM.GetPartCount() > 0 )
            poTool = oSM.GetPart(0);
    }

/* ==================================================================== */
/*      Process the LABEL tool.                                         */
/* ==================================================================== */
    if( poTool && poTool->GetType() == OGRSTCLabel )
    {
        OGRStyleLabel *poLabel = (OGRStyleLabel *) poTool;
        GBool  bDefault;

/* -------------------------------------------------------------------- */
/*      Color                                                           */
/* -------------------------------------------------------------------- */
        if( poLabel->ForeColor(bDefault) != NULL && !bDefault )
            WriteValue( 62, ColorStringToDXFColor( 
                            poLabel->ForeColor(bDefault) ) );

/* -------------------------------------------------------------------- */
/*      Angle                                                           */
/* -------------------------------------------------------------------- */
        double dfAngle = poLabel->Angle(bDefault);

        // The DXF2000 reference says this is in radians, but in files
        // I see it seems to be in degrees. Perhaps this is version dependent?
        if( !bDefault )
            WriteValue( 50, dfAngle );

/* -------------------------------------------------------------------- */
/*      Height - We need to fetch this in georeferenced units - I'm     */
/*      doubt the default translation mechanism will be much good.      */
/* -------------------------------------------------------------------- */
        poTool->SetUnit( OGRSTUGround );
        double dfHeight = poLabel->Size(bDefault);

        if( !bDefault )
            WriteValue( 40, dfHeight );

/* -------------------------------------------------------------------- */
/*      Anchor / Attachment Point                                       */
/* -------------------------------------------------------------------- */
        int nAnchor = poLabel->Anchor(bDefault);
        
        if( !bDefault )
        {
            const static int anAnchorMap[] = 
                { -1, 7, 8, 9, 4, 5, 6, 1, 2, 3, 7, 8, 9 };

            if( nAnchor > 0 && nAnchor < 13 )
                WriteValue( 71, anAnchorMap[nAnchor] );
        }

/* -------------------------------------------------------------------- */
/*      Escape the text, and convert to ISO8859.                        */
/* -------------------------------------------------------------------- */
        const char *pszText = poLabel->TextString( bDefault );

        if( pszText != NULL && !bDefault )
        {
            CPLString osEscaped = TextEscape( pszText );
            WriteValue( 1, osEscaped );
        }
    }

    delete poTool;

/* -------------------------------------------------------------------- */
/*      Write the location.                                             */
/* -------------------------------------------------------------------- */
    OGRPoint *poPoint = (OGRPoint *) poFeature->GetGeometryRef();

    WriteValue( 10, poPoint->getX() );
    if( !WriteValue( 20, poPoint->getY() ) ) 
        return OGRERR_FAILURE;

    if( poPoint->getGeometryType() == wkbPoint25D )
    {
        if( !WriteValue( 30, poPoint->getZ() ) )
            return OGRERR_FAILURE;
    }
    
//.........这里部分代码省略.........

OGRErr OGRDXFWriterLayer::WriteINSERT( OGRFeature *poFeature )

{
    WriteValue( 0, "INSERT" );
    WriteCore( poFeature );
    WriteValue( 100, "AcDbEntity" );
    WriteValue( 100, "AcDbBlockReference" );
    WriteValue( 2, poFeature->GetFieldAsString("BlockName") );

    // Write style symbol color
    OGRStyleTool *poTool = NULL;
    OGRStyleMgr oSM;
    if( poFeature->GetStyleString() != NULL )
    {
        oSM.InitFromFeature( poFeature );

        if( oSM.GetPartCount() > 0 )
            poTool = oSM.GetPart(0);
    }
    if( poTool && poTool->GetType() == OGRSTCSymbol )
    {
        OGRStyleSymbol *poSymbol = (OGRStyleSymbol *) poTool;
        GBool  bDefault;

        if( poSymbol->Color(bDefault) != NULL && !bDefault )
            WriteValue( 62, ColorStringToDXFColor( poSymbol->Color(bDefault) ) );
    }
    delete poTool;
    
/* -------------------------------------------------------------------- */
/*      Write location.                                                 */
/* -------------------------------------------------------------------- */
    OGRPoint *poPoint = (OGRPoint *) poFeature->GetGeometryRef();

    WriteValue( 10, poPoint->getX() );
    if( !WriteValue( 20, poPoint->getY() ) ) 
        return OGRERR_FAILURE;

    if( poPoint->getGeometryType() == wkbPoint25D )
    {
        if( !WriteValue( 30, poPoint->getZ() ) )
            return OGRERR_FAILURE;
    }
    
/* -------------------------------------------------------------------- */
/*      Write scaling.                                                  */
/* -------------------------------------------------------------------- */
    int nScaleCount;
    const double *padfScale = 
        poFeature->GetFieldAsDoubleList( "BlockScale", &nScaleCount );

    if( nScaleCount == 3 )
    {
        WriteValue( 41, padfScale[0] );
        WriteValue( 42, padfScale[1] );
        WriteValue( 43, padfScale[2] );
    }

/* -------------------------------------------------------------------- */
/*      Write rotation.                                                 */
/* -------------------------------------------------------------------- */
    double dfAngle = poFeature->GetFieldAsDouble( "BlockAngle" );

    if( dfAngle != 0.0 )
    {
        WriteValue( 50, dfAngle ); // degrees
    }

    return OGRERR_NONE;
}

OGRErr OGRDXFWriterLayer::WriteHATCH( OGRFeature *poFeature,
                                      OGRGeometry *poGeom )

{
/* -------------------------------------------------------------------- */
/*      For now we handle multipolygons by writing a series of          */
/*      entities.                                                       */
/* -------------------------------------------------------------------- */
    if( poGeom == NULL )
        poGeom = poFeature->GetGeometryRef();

    if ( poGeom->IsEmpty() )
    {
        return OGRERR_NONE;
    }
            
    if( wkbFlatten(poGeom->getGeometryType()) == wkbMultiPolygon )
    {
        OGRGeometryCollection *poGC = (OGRGeometryCollection *) poGeom;
        int iGeom;
        OGRErr eErr = OGRERR_NONE;

        for( iGeom = 0; 
             eErr == OGRERR_NONE && iGeom < poGC->getNumGeometries(); 
             iGeom++ )
        {
            eErr = WriteHATCH( poFeature, poGC->getGeometryRef( iGeom ) );
        }

        return eErr;
    }

/* -------------------------------------------------------------------- */
/*      Do we now have a geometry we can work with?                     */
/* -------------------------------------------------------------------- */
    if( wkbFlatten(poGeom->getGeometryType()) != wkbPolygon )
        return OGRERR_UNSUPPORTED_GEOMETRY_TYPE;

/* -------------------------------------------------------------------- */
/*      Write as a hatch.                                               */
/* -------------------------------------------------------------------- */
    WriteValue( 0, "HATCH" );
    WriteCore( poFeature );
    WriteValue( 100, "AcDbEntity" );
    WriteValue( 100, "AcDbHatch" );
    WriteValue( 2, "SOLID" ); // fill pattern
    WriteValue( 70, 1 ); // solid fill
    WriteValue( 71, 0 ); // associativity 

/* -------------------------------------------------------------------- */
/*      Do we have styling information?                                 */
/* -------------------------------------------------------------------- */
    OGRStyleTool *poTool = NULL;
    OGRStyleMgr oSM;

    if( poFeature->GetStyleString() != NULL )
    {
        oSM.InitFromFeature( poFeature );

        if( oSM.GetPartCount() > 0 )
            poTool = oSM.GetPart(0);
    }

/* -------------------------------------------------------------------- */
/*      Handle a PEN tool to control drawing color and width.           */
/*      Perhaps one day also dottedness, etc.                           */
/* -------------------------------------------------------------------- */
#ifdef notdef
    if( poTool && poTool->GetType() == OGRSTCPen )
    {
        OGRStylePen *poPen = (OGRStylePen *) poTool;
        GBool  bDefault;

        if( poPen->Color(bDefault) != NULL && !bDefault )
            WriteValue( 62, ColorStringToDXFColor( poPen->Color(bDefault) ) );
        
        double dfWidthInMM = poPen->Width(bDefault);

        if( !bDefault )
            WriteValue( 370, (int) floor(dfWidthInMM * 100 + 0.5) );
    }

/* -------------------------------------------------------------------- */
/*      Do we have a Linetype for the feature?                          */
/* -------------------------------------------------------------------- */
    CPLString osLineType = poFeature->GetFieldAsString( "Linetype" );

    if( osLineType.size() > 0 
        && (poDS->oHeaderDS.LookupLineType( osLineType ) != NULL 
            || oNewLineTypes.count(osLineType) > 0 ) )
    {
        // Already define -> just reference it.
        WriteValue( 6, osLineType );
    }
    else if( poTool != NULL && poTool->GetType() == OGRSTCPen )
    {
        CPLString osDefinition = PrepareLineTypeDefinition( poFeature, 
                                                            poTool );

        if( osDefinition != "" && osLineType == "" )
//.........这里部分代码省略.........

OGRErr OGRKMLLayer::ICreateFeature( OGRFeature* poFeature )
{
    CPLAssert( NULL != poFeature );
    CPLAssert( NULL != poDS_ );

    if( !bWriter_ )
        return OGRERR_FAILURE;

    if( bClosedForWriting )
    {
        CPLError(CE_Failure, CPLE_NotSupported,
                 "Interleaved feature adding to different layers is not supported");
        return OGRERR_FAILURE;
    }

    VSILFILE *fp = poDS_->GetOutputFP();
    CPLAssert( NULL != fp );

    if( poDS_->GetLayerCount() == 1 && nWroteFeatureCount_ == 0 )
    {
        CPLString osRet = WriteSchema();
        if( osRet.size() )
            VSIFPrintfL( fp, "%s", osRet.c_str() );
        bSchemaWritten_ = TRUE;

        VSIFPrintfL( fp, "<Folder><name>%s</name>\n", pszName_);
    }

    VSIFPrintfL( fp, "  <Placemark>\n" );

    if( poFeature->GetFID() == OGRNullFID )
        poFeature->SetFID( iNextKMLId_++ );

    // Find and write the name element
    if (NULL != poDS_->GetNameField())
    {
        for( int iField = 0; iField < poFeatureDefn_->GetFieldCount(); iField++ )
        {
            OGRFieldDefn *poField = poFeatureDefn_->GetFieldDefn( iField );

            if( poFeature->IsFieldSet( iField )
                && EQUAL(poField->GetNameRef(), poDS_->GetNameField()) )
            {
                const char *pszRaw = poFeature->GetFieldAsString( iField );
                while( *pszRaw == ' ' )
                    pszRaw++;

                char *pszEscaped = OGRGetXML_UTF8_EscapedString( pszRaw );

                VSIFPrintfL( fp, "\t<name>%s</name>\n", pszEscaped);
                CPLFree( pszEscaped );
            }
        }
    }

    if (NULL != poDS_->GetDescriptionField())
    {
        for( int iField = 0; iField < poFeatureDefn_->GetFieldCount(); iField++ )
        {
            OGRFieldDefn *poField = poFeatureDefn_->GetFieldDefn( iField );

            if( poFeature->IsFieldSet( iField )
                && EQUAL(poField->GetNameRef(), poDS_->GetDescriptionField()) )
            {
                const char *pszRaw = poFeature->GetFieldAsString( iField );
                while( *pszRaw == ' ' )
                    pszRaw++;

                char *pszEscaped = OGRGetXML_UTF8_EscapedString( pszRaw );

                VSIFPrintfL( fp, "\t<description>%s</description>\n", pszEscaped);
                CPLFree( pszEscaped );
            }
        }
    }

    OGRwkbGeometryType eGeomType = wkbNone;
    if (poFeature->GetGeometryRef() != NULL)
        eGeomType = wkbFlatten(poFeature->GetGeometryRef()->getGeometryType());
    if ( wkbPolygon == eGeomType
         || wkbMultiPolygon == eGeomType
         || wkbLineString == eGeomType
         || wkbMultiLineString == eGeomType )
    {
        OGRStylePen *poPen = NULL;
        OGRStyleMgr oSM;

        if( poFeature->GetStyleString() != NULL )
        {
            oSM.InitFromFeature( poFeature );

            int i;
            for(i=0; i<oSM.GetPartCount();i++)
            {
                OGRStyleTool *poTool = oSM.GetPart(i);
                if (poTool && poTool->GetType() == OGRSTCPen )
                {
                    poPen = (OGRStylePen*) poTool;
                    break;
                }
//.........这里部分代码省略.........