本文整理汇总了C++中DDFSubfieldDefn::ExtractStringData方法的典型用法代码示例。如果您正苦于以下问题：C++ DDFSubfieldDefn::ExtractStringData方法的具体用法？C++ DDFSubfieldDefn::ExtractStringData怎么用？C++ DDFSubfieldDefn::ExtractStringData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DDFSubfieldDefn的用法示例。
在下文中一共展示了DDFSubfieldDefn::ExtractStringData方法的6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: Set
int SDTSModId::Set( DDFField *poField )
{
const char *pachData = poField->GetData();
DDFFieldDefn *poDefn = poField->GetFieldDefn();
if( poDefn->GetSubfieldCount() >= 2
&& poDefn->GetSubfield(0)->GetWidth() == 4 )
{
if( strlen(pachData) < 5 )
return FALSE;
memcpy( szModule, pachData, 4 );
szModule[4] = '\0';
nRecord = atoi( pachData + 4 );
}
else
{
DDFSubfieldDefn *poSF
= poField->GetFieldDefn()->FindSubfieldDefn( "MODN" );
if( poSF == nullptr )
return FALSE;
int nBytesRemaining;
pachData = poField->GetSubfieldData(poSF, &nBytesRemaining);
if( pachData == nullptr )
return FALSE;
snprintf( szModule, sizeof(szModule), "%s",
poSF->ExtractStringData( pachData, nBytesRemaining, nullptr) );
poSF = poField->GetFieldDefn()->FindSubfieldDefn( "RCID" );
if( poSF != nullptr )
{
pachData = poField->GetSubfieldData(poSF, &nBytesRemaining);
if( pachData != nullptr )
nRecord = poSF->ExtractIntData( pachData, nBytesRemaining, nullptr);
}
}
if( poDefn->GetSubfieldCount() == 3 )
{
DDFSubfieldDefn *poSF = poField->GetFieldDefn()->FindSubfieldDefn( "OBRP" );
if( poSF != nullptr )
{
int nBytesRemaining;
pachData
= poField->GetSubfieldData(poSF, &nBytesRemaining);
if( pachData != nullptr )
{
snprintf( szOBRP, sizeof(szOBRP), "%s",
poSF->ExtractStringData( pachData, nBytesRemaining, nullptr) );
}
}
}
return FALSE;
}示例2: Set
int SDTSModId::Set( DDFField *poField )
{
const char *pachData = poField->GetData();
DDFFieldDefn *poDefn = poField->GetFieldDefn();
if( poDefn->GetSubfieldCount() >= 2
&& poDefn->GetSubfield(0)->GetWidth() == 4 )
{
memcpy( szModule, pachData, 4 );
szModule[4] = '\0';
nRecord = atoi( pachData + 4 );
}
else
{
DDFSubfieldDefn *poSF;
int nBytesRemaining;
const char *pachData;
poSF = poField->GetFieldDefn()->FindSubfieldDefn( "MODN" );
pachData = poField->GetSubfieldData(poSF, &nBytesRemaining);
strncpy( szModule,
poSF->ExtractStringData( pachData, nBytesRemaining, NULL),
sizeof(szModule) );
szModule[sizeof(szModule)-1] = '\0';
poSF = poField->GetFieldDefn()->FindSubfieldDefn( "RCID" );
pachData = poField->GetSubfieldData(poSF, &nBytesRemaining);
nRecord = poSF->ExtractIntData( pachData, nBytesRemaining, NULL);
}
if( poDefn->GetSubfieldCount() == 3 )
{
DDFSubfieldDefn *poSF;
poSF = poField->GetFieldDefn()->FindSubfieldDefn( "OBRP" );
if( poSF != NULL )
{
int nBytesRemaining;
const char *pachData;
pachData = poField->GetSubfieldData(poSF, &nBytesRemaining);
strncpy( szOBRP,
poSF->ExtractStringData( pachData, nBytesRemaining, NULL),
sizeof(szOBRP) );
szOBRP[sizeof(szOBRP)-1] = '\0';
}
}
return FALSE;
}示例3: main
//.........这里部分代码省略.........
int nRepeatCount = poField->GetRepeatCount();
const char* pachData = poField->GetData();
int nDataSize = poField->GetDataSize();
if( nRepeatCount == 1 && poDefn->GetSubfieldCount() == 0 )
{
printf(" value=\"0x");
for( int i = 0; i < nDataSize - 1; i++ )
printf( "%02X", pachData[i] );
printf("\">\n");
}
else
printf(">\n");
for( nLoopCount = 0; nLoopCount < nRepeatCount; nLoopCount++ )
{
for( int iSubField = 0; iSubField < poDefn->GetSubfieldCount(); iSubField++ )
{
int nBytesConsumed;
DDFSubfieldDefn* poSubFieldDefn = poDefn->GetSubfield(iSubField);
const char* pszSubFieldName = poSubFieldDefn->GetName();
printf(" <DDFSubfield name=\"%s\" ", pszSubFieldName);
DDFDataType eType = poSubFieldDefn->GetType();
const char* pachSubdata = pachData + iOffset;
int nMaxBytes = nDataSize - iOffset;
if( eType == DDFFloat )
printf("type=\"float\">%f",
poSubFieldDefn->ExtractFloatData( pachSubdata, nMaxBytes, NULL ) );
else if( eType == DDFInt )
printf("type=\"integer\">%d",
poSubFieldDefn->ExtractIntData( pachSubdata, nMaxBytes, NULL ) );
else if( eType == DDFBinaryString )
{
int nBytes, i;
GByte *pabyBString = (GByte *)
poSubFieldDefn->ExtractStringData( pachSubdata, nMaxBytes, &nBytes );
printf( "type=\"binary\">0x" );
for( i = 0; i < nBytes; i++ )
printf( "%02X", pabyBString[i] );
}
else
{
GByte* pabyString = (GByte *)poSubFieldDefn->ExtractStringData( pachSubdata, nMaxBytes, NULL );
int bBinary = FALSE;
int i;
for( i = 0; pabyString[i] != '\0'; i ++ )
{
if( pabyString[i] < 32 || pabyString[i] > 127 )
{
bBinary = TRUE;
break;
}
}
if( bBinary )
{
printf( "type=\"binary\">0x" );
for( i = 0; pabyString[i] != '\0'; i ++ )
printf( "%02X", pabyString[i] );
}
else
{
char* pszEscaped = CPLEscapeString((const char*)pabyString, -1, CPLES_XML);
printf("type=\"string\">%s", pszEscaped);
CPLFree(pszEscaped);
}
}
printf("</DDFSubfield>\n");示例4: switch
static void
WriteAttrRecordToDBF( DBFHandle hDBF, int iRecord,
SDTSTransfer * poTransfer, DDFField * poSR )
{
/* -------------------------------------------------------------------- */
/* Process each subfield in the record. */
/* -------------------------------------------------------------------- */
DDFFieldDefn *poFDefn = poSR->GetFieldDefn();
for( int iSF=0; iSF < poFDefn->GetSubfieldCount(); iSF++ )
{
DDFSubfieldDefn *poSFDefn = poFDefn->GetSubfield( iSF );
int iField;
int nMaxBytes;
const char * pachData = poSR->GetSubfieldData(poSFDefn,
&nMaxBytes);
/* -------------------------------------------------------------------- */
/* Identify the related DBF field, if any. */
/* -------------------------------------------------------------------- */
for( iField = 0; iField < hDBF->nFields; iField++ )
{
if( EQUALN(poSFDefn->GetName(),
hDBF->pszHeader+iField*32,10) )
break;
}
if( iField == hDBF->nFields )
iField = -1;
/* -------------------------------------------------------------------- */
/* Handle each of the types. */
/* -------------------------------------------------------------------- */
switch( poSFDefn->GetType() )
{
case DDFString:
const char *pszValue;
pszValue = poSFDefn->ExtractStringData(pachData, nMaxBytes,
NULL);
if( iField != -1 )
DBFWriteStringAttribute(hDBF, iRecord, iField, pszValue );
break;
case DDFFloat:
double dfValue;
dfValue = poSFDefn->ExtractFloatData(pachData, nMaxBytes,
NULL);
if( iField != -1 )
DBFWriteDoubleAttribute( hDBF, iRecord, iField, dfValue );
break;
case DDFInt:
int nValue;
nValue = poSFDefn->ExtractIntData(pachData, nMaxBytes, NULL);
if( iField != -1 )
DBFWriteIntegerAttribute( hDBF, iRecord, iField, nValue );
break;
default:
break;
}
} /* next subfield */
}示例5: printf
static void
AddPrimaryAttrToDBFSchema( DBFHandle hDBF, SDTSTransfer *poTransfer,
char ** papszModuleList )
{
for( int iModule = 0;
papszModuleList != NULL && papszModuleList[iModule] != NULL;
iModule++ )
{
SDTSAttrReader *poAttrReader;
/* -------------------------------------------------------------------- */
/* Get a reader on the desired module. */
/* -------------------------------------------------------------------- */
poAttrReader = (SDTSAttrReader *)
poTransfer->GetLayerIndexedReader(
poTransfer->FindLayer( papszModuleList[iModule] ) );
if( poAttrReader == NULL )
{
printf( "Unable to open attribute module %s, skipping.\n" ,
papszModuleList[iModule] );
continue;
}
poAttrReader->Rewind();
/* -------------------------------------------------------------------- */
/* Read the first record so we can clone schema information off */
/* of it. */
/* -------------------------------------------------------------------- */
SDTSAttrRecord *poAttrFeature;
poAttrFeature = (SDTSAttrRecord *) poAttrReader->GetNextFeature();
if( poAttrFeature == NULL )
{
fprintf( stderr,
"Didn't find any meaningful attribute records in %s.\n",
papszModuleList[iModule] );
continue;
}
/* -------------------------------------------------------------------- */
/* Clone schema off the first record. Eventually we need to */
/* get the information out of the DDR record, but it isn't */
/* clear to me how to accomplish that with the SDTS++ API. */
/* */
/* The following approach may fail (dramatically) if some */
/* records do not include all subfields. Furthermore, no */
/* effort is made to make DBF field names unique. The SDTS */
/* attributes often have names much beyond the 14 character dbf */
/* limit which may result in non-unique attributes. */
/* -------------------------------------------------------------------- */
DDFFieldDefn *poFDefn = poAttrFeature->poATTR->GetFieldDefn();
int iSF;
DDFField *poSR = poAttrFeature->poATTR;
for( iSF=0; iSF < poFDefn->GetSubfieldCount(); iSF++ )
{
DDFSubfieldDefn *poSFDefn = poFDefn->GetSubfield( iSF );
int nWidth = poSFDefn->GetWidth();
switch( poSFDefn->GetType() )
{
case DDFString:
if( nWidth == 0 )
{
int nMaxBytes;
const char * pachData = poSR->GetSubfieldData(poSFDefn,
&nMaxBytes);
nWidth = strlen(poSFDefn->ExtractStringData(pachData,
nMaxBytes, NULL ));
}
DBFAddField( hDBF, poSFDefn->GetName(), FTString, nWidth, 0 );
break;
case DDFInt:
if( nWidth == 0 )
nWidth = 9;
DBFAddField( hDBF, poSFDefn->GetName(), FTInteger, nWidth, 0 );
break;
case DDFFloat:
DBFAddField( hDBF, poSFDefn->GetName(), FTDouble, 18, 6 );
break;
default:
fprintf( stderr,
"Dropping attribute `%s' of module `%s'. "
"Type unsupported\n",
poSFDefn->GetName(),
papszModuleList[iModule] );
break;
}
}
//.........这里部分代码省略.........
示例6: switch
static void
AssignAttrRecordToFeature( OGRFeature * poFeature,
CPL_UNUSED SDTSTransfer * poTransfer,
DDFField * poSR )
{
/* -------------------------------------------------------------------- */
/* Process each subfield in the record. */
/* -------------------------------------------------------------------- */
DDFFieldDefn *poFDefn = poSR->GetFieldDefn();
for( int iSF=0; iSF < poFDefn->GetSubfieldCount(); iSF++ )
{
DDFSubfieldDefn *poSFDefn = poFDefn->GetSubfield( iSF );
int iField;
int nMaxBytes;
const char * pachData = poSR->GetSubfieldData(poSFDefn,
&nMaxBytes);
/* -------------------------------------------------------------------- */
/* Indentify this field on the feature. */
/* -------------------------------------------------------------------- */
iField = poFeature->GetFieldIndex( poSFDefn->GetName() );
/* -------------------------------------------------------------------- */
/* Handle each of the types. */
/* -------------------------------------------------------------------- */
switch( poSFDefn->GetType() )
{
case DDFString:
const char *pszValue;
pszValue = poSFDefn->ExtractStringData(pachData, nMaxBytes,
NULL);
if( iField != -1 )
poFeature->SetField( iField, pszValue );
break;
case DDFFloat:
double dfValue;
dfValue = poSFDefn->ExtractFloatData(pachData, nMaxBytes,
NULL);
if( iField != -1 )
poFeature->SetField( iField, dfValue );
break;
case DDFInt:
int nValue;
nValue = poSFDefn->ExtractIntData(pachData, nMaxBytes, NULL);
if( iField != -1 )
poFeature->SetField( iField, nValue );
break;
default:
break;
}
} /* next subfield */
}