本文整理汇总了C++中CPLReadLine2L函数的典型用法代码示例。如果您正苦于以下问题：C++ CPLReadLine2L函数的具体用法？C++ CPLReadLine2L怎么用？C++ CPLReadLine2L使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了CPLReadLine2L函数的20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，您的评价将有助于我们的系统推荐出更棒的C++代码示例。
示例1: E00ReadNextLine
const char* E00GRIDDataset::ReadLine()
{
if (e00ReadPtr)
return E00ReadNextLine(e00ReadPtr);
return CPLReadLine2L(fp, 81, NULL);
}
开发者ID:ryandavid，项目名称:rotobox，代码行数:7，代码来源:e00griddataset.cpp
示例2: ResetReading
int OGRHTFSoundingLayer::GetFeatureCount(int bForce)
{
if (m_poFilterGeom != NULL || m_poAttrQuery != NULL)
return OGRHTFLayer::GetFeatureCount(bForce);
if (nTotalSoundings != 0)
return nTotalSoundings;
ResetReading();
if (fpHTF == NULL)
return 0;
int nCount = 0;
const char* pszLine;
while( (pszLine = CPLReadLine2L(fpHTF, 1024, NULL)) != NULL)
{
if (pszLine[0] == ';')
{
/* comment */ ;
}
else if (pszLine[0] == 0)
break;
else if (strcmp(pszLine, "END OF SOUNDING DATA") == 0)
break;
else
nCount ++;
}
ResetReading();
return nCount;
}
开发者ID:AsherBond，项目名称:MondocosmOS，代码行数:31，代码来源:ogrhtflayer.cpp
示例3: while
OGRFeature *OGROpenAirLabelLayer::GetNextRawFeature()
{
const char* pszLine;
double dfLat = 0, dfLon = 0;
int bHasCoord = FALSE;
while(TRUE)
{
pszLine = CPLReadLine2L(fpOpenAir, 1024, NULL);
if (pszLine == NULL)
return NULL;
if (pszLine[0] == '*' || pszLine[0] == '\0')
continue;
if (EQUALN(pszLine, "AC ", 3))
{
if (osCLASS.size() != 0)
{
osNAME = "";
osCEILING = "";
osFLOOR = "";
}
osCLASS = pszLine + 3;
}
else if (EQUALN(pszLine, "AN ", 3))
osNAME = pszLine + 3;
else if (EQUALN(pszLine, "AH ", 3))
osCEILING = pszLine + 3;
else if (EQUALN(pszLine, "AL ", 3))
osFLOOR = pszLine + 3;
else if (EQUALN(pszLine, "AT ", 3))
{
bHasCoord = OGROpenAirGetLatLon(pszLine + 3, dfLat, dfLon);
break;
}
}
OGRFeature* poFeature = new OGRFeature(poFeatureDefn);
poFeature->SetField(0, osCLASS.c_str());
poFeature->SetField(1, osNAME.c_str());
poFeature->SetField(2, osFLOOR.c_str());
poFeature->SetField(3, osCEILING.c_str());
CPLString osStyle;
osStyle.Printf("LABEL(t:\"%s\")", osNAME.c_str());
poFeature->SetStyleString(osStyle.c_str());
if (bHasCoord)
{
OGRPoint* poPoint = new OGRPoint(dfLon, dfLat);
poPoint->assignSpatialReference(poSRS);
poFeature->SetGeometryDirectly(poPoint);
}
poFeature->SetFID(nNextFID++);
return poFeature;
}
开发者ID:samalone，项目名称:gdal-ios，代码行数:59，代码来源:ogropenairlabellayer.cpp
示例4: while
void OGRHTFSoundingLayer::ResetReading()
{
OGRHTFLayer::ResetReading();
if (fpHTF)
{
const char* pszLine;
while( (pszLine = CPLReadLine2L(fpHTF, 1024, NULL)) != NULL)
{
if (strcmp(pszLine, "SOUNDING DATA") == 0)
{
if (bHasFPK)
pszLine = CPLReadLine2L(fpHTF, 1024, NULL);
break;
}
}
if (pszLine == NULL)
bEOF = TRUE;
}
}
开发者ID:AsherBond，项目名称:MondocosmOS，代码行数:20，代码来源:ogrhtflayer.cpp
示例5: while
OGRFeature *OGRAeronavFAANAVAIDLayer::GetNextRawFeature()
{
char szBuffer[134];
while( true )
{
const char* pszLine = CPLReadLine2L(fpAeronavFAA, 134, nullptr);
if (pszLine == nullptr)
{
bEOF = true;
return nullptr;
}
if (strlen(pszLine) != 132)
continue;
if ( !(pszLine[psRecordDesc->nLatStartCol-1] == 'N' ||
pszLine[psRecordDesc->nLatStartCol-1] == 'S') )
continue;
if ( !(pszLine[psRecordDesc->nLonStartCol-1] == 'E' ||
pszLine[psRecordDesc->nLonStartCol-1] == 'W') )
continue;
OGRFeature* poFeature = new OGRFeature(poFeatureDefn);
poFeature->SetFID(nNextFID ++);
for( int i=0; i < psRecordDesc->nFields; i++ )
{
int nWidth = psRecordDesc->pasFields[i].nLastCol - psRecordDesc->pasFields[i].nStartCol + 1;
strncpy(szBuffer, pszLine + psRecordDesc->pasFields[i].nStartCol - 1, nWidth);
szBuffer[nWidth] = 0;
while(nWidth > 0 && szBuffer[nWidth - 1] == ' ')
{
szBuffer[nWidth - 1] = 0;
nWidth --;
}
if (nWidth != 0)
poFeature->SetField(i, szBuffer);
}
double dfLat = 0.0;
double dfLon = 0.0;
GetLatLon(pszLine + psRecordDesc->nLatStartCol - 1,
pszLine + psRecordDesc->nLonStartCol - 1,
dfLat,
dfLon);
OGRGeometry* poGeom = new OGRPoint(dfLon, dfLat);
poGeom->assignSpatialReference(poSRS);
poFeature->SetGeometryDirectly( poGeom );
return poFeature;
}
}
开发者ID:koordinates，项目名称:gdal，代码行数:51，代码来源:ograeronavfaalayer.cpp
示例6: VSIFSeekL
void OGRSEGP1Layer::ResetReading()
{
nNextFID = 0;
bEOF = FALSE;
VSIFSeekL( fp, 0, SEEK_SET );
/* Skip first 20 header lines */
const char* pszLine = NULL;
for(int i=0; i<20;i++)
{
pszLine = CPLReadLine2L(fp,81,NULL);
if (pszLine == NULL)
{
bEOF = TRUE;
break;
}
}
}
开发者ID:drownedout，项目名称:datamap，代码行数:19，代码来源:ogrsegukooalayer.cpp
示例7: VSIFSeekL
void OGRSEGP1Layer::ResetReading()
{
nNextFID = 0;
bEOF = false;
VSIFSeekL( fp, 0, SEEK_SET );
/* Skip first 20 header lines */
const char* pszLine = nullptr;
for(int i=0; i<20;i++)
{
pszLine = CPLReadLine2L(fp,81,nullptr);
if (pszLine == nullptr)
{
bEOF = true;
break;
}
}
}
开发者ID:OSGeo，项目名称:gdal，代码行数:19，代码来源:ogrsegukooalayer.cpp
示例8: VSIFOpenL
GDALDataset *E00GRIDDataset::Open( GDALOpenInfo * poOpenInfo )
{
if (!Identify(poOpenInfo))
return NULL;
/* -------------------------------------------------------------------- */
/* Find dataset characteristics */
/* -------------------------------------------------------------------- */
VSILFILE* fp = VSIFOpenL(poOpenInfo->pszFilename, "rb");
if (fp == NULL)
return NULL;
if (poOpenInfo->eAccess == GA_Update)
{
CPLError( CE_Failure, CPLE_NotSupported,
"The E00GRID driver does not support update access to existing"
" datasets.\n" );
VSIFCloseL(fp);
return NULL;
}
/* -------------------------------------------------------------------- */
/* Create a corresponding GDALDataset. */
/* -------------------------------------------------------------------- */
E00GRIDDataset *poDS = new E00GRIDDataset();
if (strstr((const char*)poOpenInfo->pabyHeader, "\r\n") != NULL)
poDS->nBytesEOL = 2;
poDS->fp = fp;
/* read EXP 0 or EXP 1 line */
const char* pszLine = CPLReadLine2L(fp, 81, NULL);
if (pszLine == NULL)
{
CPLDebug("E00GRID", "Bad 1st line");
delete poDS;
return NULL;
}
bool bCompressed = STARTS_WITH_CI(pszLine, "EXP 1");
E00ReadPtr e00ReadPtr = NULL;
if (bCompressed)
{
VSIRewindL(fp);
e00ReadPtr = E00ReadCallbackOpen(poDS,
E00GRIDDataset::ReadNextLine,
E00GRIDDataset::Rewind);
if (e00ReadPtr == NULL)
{
delete poDS;
return NULL;
}
E00ReadNextLine(e00ReadPtr);
poDS->e00ReadPtr = e00ReadPtr;
}
/* skip GRD 2 line */
if (e00ReadPtr)
pszLine = E00ReadNextLine(e00ReadPtr);
else
pszLine = CPLReadLine2L(fp, 81, NULL);
if (pszLine == NULL || !STARTS_WITH_CI(pszLine, "GRD 2"))
{
CPLDebug("E00GRID", "Bad 2nd line");
delete poDS;
return NULL;
}
/* read ncols, nrows and nodata value */
if (e00ReadPtr)
pszLine = E00ReadNextLine(e00ReadPtr);
else
pszLine = CPLReadLine2L(fp, 81, NULL);
if (pszLine == NULL || strlen(pszLine) <
E00_INT_SIZE+E00_INT_SIZE+2+E00_DOUBLE_SIZE)
{
CPLDebug("E00GRID", "Bad 3rd line");
delete poDS;
return NULL;
}
const int nRasterXSize = atoi(pszLine);
const int nRasterYSize = atoi(pszLine + E00_INT_SIZE);
if (!GDALCheckDatasetDimensions(nRasterXSize, nRasterYSize))
{
delete poDS;
return NULL;
}
GDALDataType eDT = GDT_Float32;
if (STARTS_WITH_CI(pszLine + E00_INT_SIZE + E00_INT_SIZE, " 1"))
eDT = GDT_Int32;
else if (STARTS_WITH_CI(pszLine + E00_INT_SIZE + E00_INT_SIZE, " 2"))
eDT = GDT_Float32;
else
{
CPLDebug("E00GRID", "Unknown data type : %s", pszLine);
}
//.........这里部分代码省略.........
开发者ID:ryandavid，项目名称:rotobox，代码行数:101，代码来源:e00griddataset.cpp
示例9: VSIFTellL
const char* E00GRIDDataset::ReadNextLine(void * ptr)
{
E00GRIDDataset* poDS = (E00GRIDDataset*) ptr;
poDS->nPosBeforeReadLine = VSIFTellL(poDS->fp);
return CPLReadLine2L(poDS->fp, 256, NULL);
}
开发者ID:ryandavid，项目名称:rotobox，代码行数:6，代码来源:e00griddataset.cpp
示例10: while
OGRFeature *OGRSEGP1Layer::GetNextRawFeature()
{
if( bEOF )
return nullptr;
const char* pszLine = nullptr;
while( true )
{
pszLine = CPLReadLine2L(fp,81,nullptr);
if (pszLine == nullptr || STARTS_WITH_CI(pszLine, "EOF"))
{
bEOF = true;
return nullptr;
}
int nLineLen = static_cast<int>(strlen(pszLine));
while(nLineLen > 0 && pszLine[nLineLen-1] == ' ')
{
((char*)pszLine)[nLineLen-1] = '\0';
nLineLen --;
}
char* pszExpandedLine = ExpandTabs(pszLine);
pszLine = pszExpandedLine;
nLineLen = static_cast<int>(strlen(pszLine));
OGRFeature* poFeature = new OGRFeature(poFeatureDefn);
poFeature->SetFID(nNextFID ++);
OGRGeometry* poGeom = nullptr;
if (nLatitudeCol-1 + 19 <= nLineLen)
{
char szDeg[3+1];
char szMin[2+1];
char szSec[4+1];
ExtractField(szDeg, pszLine, nLatitudeCol-1, 2);
ExtractField(szMin, pszLine, nLatitudeCol+2-1, 2);
ExtractField(szSec, pszLine, nLatitudeCol+2+2-1, 4);
double dfLat = atoi(szDeg) + atoi(szMin) / 60.0 + atoi(szSec) / 100.0 / 3600.0;
if (pszLine[nLatitudeCol+2+2+4-1] == 'S')
dfLat = -dfLat;
poFeature->SetField(SEGP1_FIELD_LATITUDE, dfLat);
ExtractField(szDeg, pszLine, nLatitudeCol+9-1, 3);
ExtractField(szMin, pszLine, nLatitudeCol+9+3-1, 2);
ExtractField(szSec, pszLine, nLatitudeCol+9+3+2-1, 4);
double dfLon = atoi(szDeg) + atoi(szMin) / 60.0 + atoi(szSec) / 100.0 / 3600.0;
if (pszLine[nLatitudeCol+9+3+2+4-1] == 'W')
dfLon = -dfLon;
poFeature->SetField(SEGP1_FIELD_LONGITUDE, dfLon);
if (!bUseEastingNorthingAsGeometry)
poGeom = new OGRPoint(dfLon, dfLat);
}
/* Normal layout -> extract other fields */
if (nLatitudeCol == 27 && nLineLen >= 26-1+1)
{
char szLineName[16 + 1];
ExtractField(szLineName, pszLine, 2-1, 16);
int i = 15;
while (i >= 0)
{
if (szLineName[i] == ' ')
szLineName[i] = '\0';
else
break;
i --;
}
poFeature->SetField(SEGP1_FIELD_LINENAME, szLineName);
char szPointNumber[8+1];
ExtractField(szPointNumber, pszLine, 18-1, 8);
poFeature->SetField(SEGP1_FIELD_POINTNUMBER, atoi(szPointNumber));
char szReshootCode[1+1];
ExtractField(szReshootCode, pszLine, 26-1, 1);
poFeature->SetField(SEGP1_FIELD_RESHOOTCODE, szReshootCode);
if (nLineLen >= 61)
{
char szEasting[8+1];
ExtractField(szEasting, pszLine, 46-1, 8);
double dfEasting = CPLAtof(szEasting);
poFeature->SetField(SEGP1_FIELD_EASTING, dfEasting);
char szNorthing[8+1];
ExtractField(szNorthing, pszLine, 54-1, 8);
double dfNorthing = CPLAtof(szNorthing);
poFeature->SetField(SEGP1_FIELD_NORTHING, dfNorthing);
if (bUseEastingNorthingAsGeometry)
poGeom = new OGRPoint(dfEasting, dfNorthing);
}
if (nLineLen >= 66)
{
char szDepth[5+1];
//.........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:ogrsegukooalayer.cpp
示例11: OGRHTFLayer
OGRHTFSoundingLayer::OGRHTFSoundingLayer( const char* pszFilename, int nZone, int bIsNorth, int nTotalSoundings ) :
OGRHTFLayer(pszFilename, nZone, bIsNorth)
{
poFeatureDefn = new OGRFeatureDefn( "sounding" );
poFeatureDefn->Reference();
poFeatureDefn->SetGeomType( wkbPoint );
this->nTotalSoundings = nTotalSoundings;
bHasFPK = FALSE;
nFieldsPresent = 0;
panFieldPresence = NULL;
nEastingIndex = -1;
nNorthingIndex = -1;
const char* pszLine;
int bSoundingHeader = FALSE;
while( fpHTF != NULL &&
(pszLine = CPLReadLine2L(fpHTF, 1024, NULL)) != NULL)
{
if (strncmp(pszLine, "SOUNDING HEADER", strlen("SOUNDING HEADER")) == 0)
bSoundingHeader = TRUE;
else if (bSoundingHeader && strlen(pszLine) > 10 &&
pszLine[0] == '[' && pszLine[3] == ']' &&
pszLine[4] == ' ' &&
strstr(pszLine + 5, " =") != NULL)
{
char* pszName = CPLStrdup(pszLine + 5);
*strstr(pszName, " =") = 0;
char* pszPtr = pszName;
for(;*pszPtr;pszPtr++)
{
if (*pszPtr == ' ')
*pszPtr = '_';
}
OGRFieldType eType;
if (strcmp(pszName, "REJECTED_SOUNDING") == 0 ||
strcmp(pszName, "FIX_NUMBER") == 0 ||
strcmp(pszName, "NBA_FLAG") == 0 ||
strcmp(pszName, "SOUND_VELOCITY") == 0 ||
strcmp(pszName, "PLOTTED_SOUNDING") == 0)
eType = OFTInteger;
else if (strcmp(pszName, "LATITUDE") == 0 ||
strcmp(pszName, "LONGITUDE") == 0 ||
strcmp(pszName, "EASTING") == 0 ||
strcmp(pszName, "NORTHING") == 0 ||
strcmp(pszName, "DEPTH") == 0 ||
strcmp(pszName, "TPE_POSITION") == 0 ||
strcmp(pszName, "TPE_DEPTH") == 0 ||
strcmp(pszName, "TIDE") == 0 ||
strcmp(pszName, "DEEP_WATER_CORRECTION") == 0 ||
strcmp(pszName, "VERTICAL_BIAS_CORRECTION") == 0)
eType = OFTReal;
else
eType = OFTString;
OGRFieldDefn oField( pszName, eType);
poFeatureDefn->AddFieldDefn( &oField);
CPLFree(pszName);
}
else if (strcmp(pszLine, "END OF SOUNDING HEADER") == 0)
{
bSoundingHeader = FALSE;
}
else if (strcmp(pszLine, "SOUNDING DATA") == 0)
{
pszLine = CPLReadLine2L(fpHTF, 1024, NULL);
if (pszLine == NULL)
break;
if (pszLine[0] == '[' &&
(int)strlen(pszLine) == 2 + poFeatureDefn->GetFieldCount())
{
bHasFPK = TRUE;
panFieldPresence = (int*)CPLMalloc(sizeof(int) *
poFeatureDefn->GetFieldCount());
int i;
for(i=0;i<poFeatureDefn->GetFieldCount();i++)
{
panFieldPresence[i] = pszLine[1 + i] != '0';
nFieldsPresent += panFieldPresence[i];
}
}
break;
}
}
if (!bHasFPK)
{
panFieldPresence = (int*)CPLMalloc(sizeof(int) *
poFeatureDefn->GetFieldCount());
int i;
for(i=0;i<poFeatureDefn->GetFieldCount();i++)
panFieldPresence[i] = TRUE;
nFieldsPresent = poFeatureDefn->GetFieldCount();
}
int nIndex;
nIndex = poFeatureDefn->GetFieldIndex("EASTING");
if (nIndex < 0 || !panFieldPresence[nIndex])
{
CPLError(CE_Failure, CPLE_NotSupported, "Cannot find EASTING field");
//.........这里部分代码省略.........
开发者ID:AsherBond，项目名称:MondocosmOS，代码行数:101，代码来源:ogrhtflayer.cpp
示例12: VSIFSeekL
CPLErr XYZRasterBand::IReadBlock( int nBlockXOff, int nBlockYOff,
void * pImage )
{
XYZDataset *poGDS = (XYZDataset *) poDS;
if (poGDS->fp == NULL)
return CE_Failure;
int nLineInFile = nBlockYOff * nBlockXSize;
if (poGDS->nDataLineNum > nLineInFile)
{
poGDS->nDataLineNum = 0;
VSIFSeekL(poGDS->fp, 0, SEEK_SET);
for(int i=0;i<poGDS->nCommentLineCount;i++)
CPLReadLine2L(poGDS->fp, 100, NULL);
if (poGDS->bHasHeaderLine)
{
const char* pszLine = CPLReadLine2L(poGDS->fp, 100, 0);
if (pszLine == NULL)
{
memset(pImage, 0, nBlockXSize * (GDALGetDataTypeSize(eDataType) / 8));
return CE_Failure;
}
poGDS->nLineNum ++;
}
}
while(poGDS->nDataLineNum < nLineInFile)
{
const char* pszLine = CPLReadLine2L(poGDS->fp, 100, 0);
if (pszLine == NULL)
{
memset(pImage, 0, nBlockXSize * (GDALGetDataTypeSize(eDataType) / 8));
return CE_Failure;
}
poGDS->nLineNum ++;
const char* pszPtr = pszLine;
char ch;
int nCol = 0;
int bLastWasSep = TRUE;
while((ch = *pszPtr) != '\0')
{
if (ch == ' ' || ch == ',' || ch == '\t' || ch == ';')
{
if (!bLastWasSep)
nCol ++;
bLastWasSep = TRUE;
}
else
{
bLastWasSep = FALSE;
}
pszPtr ++;
}
/* Skip empty line */
if (nCol == 0 && bLastWasSep)
continue;
poGDS->nDataLineNum ++;
}
int i;
for(i=0;i<nBlockXSize;i++)
{
int nCol;
int bLastWasSep;
do
{
const char* pszLine = CPLReadLine2L(poGDS->fp, 100, 0);
if (pszLine == NULL)
{
memset(pImage, 0, nBlockXSize * (GDALGetDataTypeSize(eDataType) / 8));
return CE_Failure;
}
poGDS->nLineNum ++;
const char* pszPtr = pszLine;
char ch;
nCol = 0;
bLastWasSep = TRUE;
while((ch = *pszPtr) != '\0')
{
if (ch == ' ' || ch == ',' || ch == '\t' || ch == ';')
{
if (!bLastWasSep)
nCol ++;
bLastWasSep = TRUE;
}
else
{
if (bLastWasSep && nCol == poGDS->nZIndex)
{
double dfZ = CPLAtofM(pszPtr);
if (eDataType == GDT_Float32)
{
//.........这里部分代码省略.........
开发者ID:afarnham，项目名称:gdal，代码行数:101，代码来源:xyzdataset.cpp
示例13: while
void OGRUKOOAP190Layer::ParseHeaders()
{
while(TRUE)
{
const char* pszLine = CPLReadLine2L(fp,81,NULL);
if (pszLine == NULL || EQUALN(pszLine, "EOF", 3))
{
break;
}
int nLineLen = strlen(pszLine);
while(nLineLen > 0 && pszLine[nLineLen-1] == ' ')
{
((char*)pszLine)[nLineLen-1] = '\0';
nLineLen --;
}
if (pszLine[0] != 'H')
break;
if (nLineLen < 33)
continue;
if (!bUseEastingNorthingAsGeometry &&
strncmp(pszLine, "H1500", 5) == 0 && poSRS == NULL)
{
if (strncmp(pszLine + 33 - 1, "WGS84", 5) == 0 ||
strncmp(pszLine + 33 - 1, "WGS-84", 6) == 0)
{
poSRS = new OGRSpatialReference(SRS_WKT_WGS84);
}
else if (strncmp(pszLine + 33 - 1, "WGS72", 5) == 0)
{
poSRS = new OGRSpatialReference();
poSRS->SetFromUserInput("WGS72");
}
}
else if (!bUseEastingNorthingAsGeometry &&
strncmp(pszLine, "H1501", 5) == 0 && poSRS != NULL &&
nLineLen >= 32 + 6 * 6 + 10)
{
char aszParams[6][6+1];
char szZ[10+1];
int i;
for(i=0;i<6;i++)
{
ExtractField(aszParams[i], pszLine, 33 - 1 + i * 6, 6);
}
ExtractField(szZ, pszLine, 33 - 1 + 6 * 6, 10);
poSRS->SetTOWGS84(CPLAtof(aszParams[0]),
CPLAtof(aszParams[1]),
CPLAtof(aszParams[2]),
CPLAtof(aszParams[3]),
CPLAtof(aszParams[4]),
CPLAtof(aszParams[5]),
CPLAtof(szZ));
}
else if (strncmp(pszLine, "H0200", 5) == 0)
{
char** papszTokens = CSLTokenizeString(pszLine + 33 - 1);
for(int i = 0; papszTokens[i] != NULL; i++)
{
if (strlen(papszTokens[i]) == 4)
{
int nVal = atoi(papszTokens[i]);
if (nVal >= 1900)
{
if (nYear != 0 && nYear != nVal)
{
CPLDebug("SEGUKOOA",
"Several years found in H0200. Ignoring them!");
nYear = 0;
break;
}
nYear = nVal;
}
}
}
CSLDestroy(papszTokens);
}
}
VSIFSeekL( fp, 0, SEEK_SET );
}
开发者ID:drownedout，项目名称:datamap，代码行数:83，代码来源:ogrsegukooalayer.cpp
示例14: while
OGRFeature *OGRARCGENLayer::GetNextRawFeature()
{
if (bEOF)
return NULL;
const char* pszLine;
OGRwkbGeometryType eType = poFeatureDefn->GetGeomType();
if (wkbFlatten(eType) == wkbPoint)
{
while(TRUE)
{
pszLine = CPLReadLine2L(fp,256,NULL);
if (pszLine == NULL || EQUAL(pszLine, "END"))
{
bEOF = TRUE;
return NULL;
}
char** papszTokens = CSLTokenizeString2( pszLine, " ,", 0 );
int nTokens = CSLCount(papszTokens);
if (nTokens == 3 || nTokens == 4)
{
OGRFeature* poFeature = new OGRFeature(poFeatureDefn);
poFeature->SetFID(nNextFID ++);
poFeature->SetField(0, papszTokens[0]);
if (nTokens == 3)
poFeature->SetGeometryDirectly(
new OGRPoint(CPLAtof(papszTokens[1]),
CPLAtof(papszTokens[2])));
else
poFeature->SetGeometryDirectly(
new OGRPoint(CPLAtof(papszTokens[1]),
CPLAtof(papszTokens[2]),
CPLAtof(papszTokens[3])));
CSLDestroy(papszTokens);
return poFeature;
}
else
CSLDestroy(papszTokens);
}
}
CPLString osID;
OGRLinearRing* poLR =
(wkbFlatten(eType) == wkbPolygon) ? new OGRLinearRing() : NULL;
OGRLineString* poLS =
(wkbFlatten(eType) == wkbLineString) ? new OGRLineString() : poLR;
while(TRUE)
{
pszLine = CPLReadLine2L(fp,256,NULL);
if (pszLine == NULL)
break;
if (EQUAL(pszLine, "END"))
{
if (osID.size() == 0)
break;
OGRFeature* poFeature = new OGRFeature(poFeatureDefn);
poFeature->SetFID(nNextFID ++);
poFeature->SetField(0, osID.c_str());
if (wkbFlatten(eType) == wkbPolygon)
{
OGRPolygon* poPoly = new OGRPolygon();
poPoly->addRingDirectly(poLR);
poFeature->SetGeometryDirectly(poPoly);
}
else
poFeature->SetGeometryDirectly(poLS);
return poFeature;
}
char** papszTokens = CSLTokenizeString2( pszLine, " ,", 0 );
int nTokens = CSLCount(papszTokens);
if (osID.size() == 0)
{
if (nTokens >= 1)
osID = papszTokens[0];
else
{
CSLDestroy(papszTokens);
break;
}
}
else
{
if (nTokens == 2)
{
poLS->addPoint(CPLAtof(papszTokens[0]),
CPLAtof(papszTokens[1]));
}
else if (nTokens == 3)
{
poLS->addPoint(CPLAtof(papszTokens[0]),
CPLAtof(papszTokens[1]),
CPLAtof(papszTokens[2]));
}
else
{
CSLDestroy(papszTokens);
//.........这里部分代码省略.........
开发者ID:AbdelghaniDr，项目名称:mirror，代码行数:101，代码来源:ograrcgenlayer.cpp
示例15: osFilename
GDALDataset *XYZDataset::Open( GDALOpenInfo * poOpenInfo )
{
int i;
int bHasHeaderLine;
int nCommentLineCount = 0;
if (!IdentifyEx(poOpenInfo, bHasHeaderLine, nCommentLineCount))
return NULL;
CPLString osFilename(poOpenInfo->pszFilename);
/* GZipped .xyz files are common, so automagically open them */
/* if the /vsigzip/ has not been explicitly passed */
if (strlen(poOpenInfo->pszFilename) > 6 &&
EQUAL(poOpenInfo->pszFilename + strlen(poOpenInfo->pszFilename) - 6, "xyz.gz") &&
!EQUALN(poOpenInfo->pszFilename, "/vsigzip/", 9))
{
osFilename = "/vsigzip/";
osFilename += poOpenInfo->pszFilename;
}
/* -------------------------------------------------------------------- */
/* Find dataset characteristics */
/* -------------------------------------------------------------------- */
VSILFILE* fp = VSIFOpenL(osFilename.c_str(), "rb");
if (fp == NULL)
return NULL;
/* For better performance of CPLReadLine2L() we create a buffered reader */
/* (except for /vsigzip/ since it has one internally) */
if (!EQUALN(poOpenInfo->pszFilename, "/vsigzip/", 9))
fp = (VSILFILE*) VSICreateBufferedReaderHandle((VSIVirtualHandle*)fp);
const char* pszLine;
int nXIndex = -1, nYIndex = -1, nZIndex = -1;
int nMinTokens = 0;
for(i=0;i<nCommentLineCount;i++)
CPLReadLine2L(fp, 100, NULL);
/* -------------------------------------------------------------------- */
/* Parse header line */
/* -------------------------------------------------------------------- */
if (bHasHeaderLine)
{
pszLine = CPLReadLine2L(fp, 100, NULL);
if (pszLine == NULL)
{
VSIFCloseL(fp);
return NULL;
}
char** papszTokens = CSLTokenizeString2( pszLine, " ,\t;",
CSLT_HONOURSTRINGS );
int nTokens = CSLCount(papszTokens);
if (nTokens < 3)
{
CPLError(CE_Failure, CPLE_AppDefined,
"At line %d, found %d tokens. Expected 3 at least",
1, nTokens);
CSLDestroy(papszTokens);
VSIFCloseL(fp);
return NULL;
}
int i;
for(i=0;i<nTokens;i++)
{
if (EQUAL(papszTokens[i], "x") ||
EQUALN(papszTokens[i], "lon", 3) ||
EQUALN(papszTokens[i], "east", 4))
nXIndex = i;
else if (EQUAL(papszTokens[i], "y") ||
EQUALN(papszTokens[i], "lat", 3) ||
EQUALN(papszTokens[i], "north", 5))
nYIndex = i;
else if (EQUAL(papszTokens[i], "z") ||
EQUALN(papszTokens[i], "alt", 3) ||
EQUAL(papszTokens[i], "height"))
nZIndex = i;
}
CSLDestroy(papszTokens);
papszTokens = NULL;
if (nXIndex < 0 || nYIndex < 0 || nZIndex < 0)
{
CPLError(CE_Warning, CPLE_AppDefined,
"Could not find one of the X, Y or Z column names in header line. Defaulting to the first 3 columns");
nXIndex = 0;
nYIndex = 1;
nZIndex = 2;
}
nMinTokens = 1 + MAX(MAX(nXIndex, nYIndex), nZIndex);
}
else
{
nXIndex = 0;
nYIndex = 1;
nZIndex = 2;
nMinTokens = 3;
}
//.........这里部分代码省略.........
开发者ID:garnertb，项目名称:gdal，代码行数:101，代码来源:xyzdataset.cpp
示例16: GetNoDataValue
CPLErr XYZRasterBand::IReadBlock( CPL_UNUSED int nBlockXOff,
int nBlockYOff,
void * pImage )
{
XYZDataset *poGDS = (XYZDataset *) poDS;
if (poGDS->fp == NULL)
return CE_Failure;
if( pImage )
{
int bSuccess = FALSE;
double dfNoDataValue = GetNoDataValue(&bSuccess);
if( !bSuccess )
dfNoDataValue = 0.0;
GDALCopyWords(&dfNoDataValue, GDT_Float64, 0,
pImage, eDataType, GDALGetDataTypeSize(eDataType) / 8,
nRasterXSize);
}
int nLineInFile = nBlockYOff * nBlockXSize; // only valid if bSameNumberOfValuesPerLine
if ( (poGDS->bSameNumberOfValuesPerLine && poGDS->nDataLineNum > nLineInFile) ||
(!poGDS->bSameNumberOfValuesPerLine && (nLastYOff == -1 || nBlockYOff == 0)) )
{
poGDS->nDataLineNum = 0;
poGDS->nLineNum = 0;
VSIFSeekL(poGDS->fp, 0, SEEK_SET);
for(int i=0;i<poGDS->nCommentLineCount;i++)
{
CPLReadLine2L(poGDS->fp, 100, NULL);
poGDS->nLineNum ++;
}
if (poGDS->bHasHeaderLine)
{
const char* pszLine = CPLReadLine2L(poGDS->fp, 100, 0);
if (pszLine == NULL)
return CE_Failure;
poGDS->nLineNum ++;
}
}
if( !poGDS->bSameNumberOfValuesPerLine && nBlockYOff != nLastYOff + 1 )
{
int iY;
if( nBlockYOff < nLastYOff )
{
nLastYOff = -1;
for(iY = 0; iY < nBlockYOff; iY++)
{
if( IReadBlock(0, iY, NULL) != CE_None )
return CE_Failure;
}
}
else
{
for(iY = nLastYOff + 1; iY < nBlockYOff; iY++)
{
if( IReadBlock(0, iY, NULL) != CE_None )
return CE_Failure;
}
}
}
else if( poGDS->bSameNumberOfValuesPerLine )
{
while(poGDS->nDataLineNum < nLineInFile)
{
const char* pszLine = CPLReadLine2L(poGDS->fp, 100, 0);
if (pszLine == NULL)
return CE_Failure;
poGDS->nLineNum ++;
const char* pszPtr = pszLine;
char ch;
int nCol = 0;
int bLastWasSep = TRUE;
while((ch = *pszPtr) != '\0')
{
if (ch == ' ')
{
if (!bLastWasSep)
nCol ++;
bLastWasSep = TRUE;
}
else if ((ch == ',' && poGDS->chDecimalSep != ',') || ch == '\t' || ch == ';')
{
nCol ++;
bLastWasSep = TRUE;
}
else
{
bLastWasSep = FALSE;
}
pszPtr ++;
}
/* Skip empty line */
if (nCol == 0 && bLastWasSep)
continue;
//.........这里部分代码省略.........
开发者ID:garnertb，项目名称:gdal，代码行数:101，代码来源:xyzdataset.cpp
示例17: CPLStrdup
int OGRPDSDataSource::Open( const char * pszFilename )
{
pszName = CPLStrdup( pszFilename );
// --------------------------------------------------------------------
// Does this appear to be a .PDS table file?
// --------------------------------------------------------------------
VSILFILE* fp = VSIFOpenL(pszFilename, "rb");
if (fp == NULL)
return FALSE;
char szBuffer[512];
int nbRead = (int)VSIFReadL(szBuffer, 1, sizeof(szBuffer) - 1, fp);
szBuffer[nbRead] = '\0';
const char* pszPos = strstr(szBuffer, "PDS_VERSION_ID");
int bIsPDS = (pszPos != NULL);
if (!bIsPDS)
{
VSIFCloseL(fp);
return FALSE;
}
if (!oKeywords.Ingest(fp, pszPos - szBuffer))
{
VSIFCloseL(fp);
return FALSE;
}
VSIFCloseL(fp);
CPLString osRecordType = oKeywords.GetKeyword( "RECORD_TYPE", "" );
CPLString osFileRecords = oKeywords.GetKeyword( "FILE_RECORDS", "" );
CPLString osRecordBytes = oKeywords.GetKeyword( "RECORD_BYTES", "" );
int nRecordSize = atoi(osRecordBytes);
if (osRecordType.size() == 0 || osFileRecords.size() == 0 ||
osRecordBytes.size() == 0 || nRecordSize <= 0)
{
CPLError(CE_Failure, CPLE_NotSupported,
"One of RECORD_TYPE, FILE_RECORDS or RECORD_BYTES is missing");
return FALSE;
}
CleanString(osRecordType);
if (osRecordType.compare("FIXED_LENGTH") != 0)
{
CPLError(CE_Failure, CPLE_NotSupported,
"Only RECORD_TYPE=FIXED_LENGTH is supported");
return FALSE;
}
CPLString osTable = oKeywords.GetKeyword( "^TABLE", "" );
if (osTable.size() != 0)
LoadTable(pszFilename, nRecordSize, "TABLE");
else
{
VSILFILE* fp = VSIFOpenL(pszFilename, "rb");
if (fp == NULL)
return FALSE;
while(TRUE)
{
CPLPushErrorHandler(CPLQuietErrorHandler);
const char* pszLine = CPLReadLine2L(fp, 256, NULL);
CPLPopErrorHandler();
CPLErrorReset();
if (pszLine == NULL)
break;
char** papszTokens =
CSLTokenizeString2( pszLine, " =", CSLT_HONOURSTRINGS );
int nTokens = CSLCount(papszTokens);
if (nTokens == 2 &&
papszTokens[0][0] == '^' &&
strstr(papszTokens[0], "TABLE") != NULL)
{
LoadTable(pszFilename, nRecordSize, papszTokens[0] + 1);
}
CSLDestroy(papszTokens);
papszTokens = NULL;
}
VSIFCloseL(fp);
}
return nLayers != 0;
}
开发者ID:samalone，项目名称:gdal-ios，代码行数:86，代码来源:ogrpdsdatasource.cpp
示例18: VSIFOpenL
GDALDataset *SNODASDataset::Open( GDALOpenInfo * poOpenInfo )
{
if( !Identify(poOpenInfo) )
return NULL;
VSILFILE *fp;
fp = VSIFOpenL( poOpenInfo->pszFilename, "r" );
if( fp == NULL )
{
return NULL;
}
const char * pszLine;
int nRows = -1, nCols = -1;
CPLString osDataFilename;
int bIsInteger = FALSE, bIs2Bytes = FALSE;
double dfNoData = 0;
int bHasNoData = FALSE;
double dfMin = 0;
int bHasMin = FALSE;
double dfMax = 0;
int bHasMax = FALSE;
double dfMinX = 0.0, dfMinY = 0.0, dfMaxX = 0.0, dfMaxY = 0.0;
int bHasMinX = FALSE, bHasMinY = FALSE, bHasMaxX = FALSE, bHasMaxY = FALSE;
int bNotProjected = FALSE, bIsWGS84 = FALSE;
CPLString osDescription, osDataUnits;
int nStartYear = -1, nStartMonth = -1, nStartDay = -1,
nStartHour = -1, nStartMinute = -1, nStartSecond = -1;
int nStopYear = -1, nStopMonth = -1, nStopDay = -1,
nStopHour = -1, nStopMinute = -1, nStopSecond = -1;
while( (pszLine = CPLReadLine2L( fp, 256, NULL )) != NULL )
{
char** papszTokens = CSLTokenizeStringComplex( pszLine, ":", TRUE, FALSE );
if( CSLCount( papszTokens ) != 2 )
{
CSLDestroy( papszTokens );
continue;
}
if( papszTokens[1][0] == ' ' )
memmove(papszTokens[1], papszTokens[1] + 1, strlen(papszTokens[1] + 1) + 1);
if( EQUAL(papszTokens[0],"Data file pathname") )
{
osDataFilename = papszTokens[1];
}
else if( EQUAL(papszTokens[0],"Description") )
{
osDescription = papszTokens[1];
}
else if( EQUAL(papszTokens[0],"Data units") )
{
osDataUnits= papszTokens[1];
}
else if( EQUAL(papszTokens[0],"Start year") )
nStartYear = atoi(papszTokens[1]);
else if( EQUAL(papszTokens[0],"Start month") )
nStartMonth = atoi(papszTokens[1]);
else if( EQUAL(papszTokens[0],"Start day") )
nStartDay = atoi(papszTokens[1]);
else if( EQUAL(papszTokens[0],"Start hour") )
nStartHour = atoi(papszTokens[1]);
else if( EQUAL(papszTokens[0],"Start minute") )
nStartMinute = atoi(papszTokens[1]);
else if( EQUAL(papszTokens[0],"Start second") )
nStartSecond = atoi(papszTokens[1]);
else if( EQUAL(papszTokens[0],"Stop year") )
nStopYear = atoi(papszTokens[1]);
else if( EQUAL(papszTokens[0],"Stop month") )
nStopMonth = atoi(papszTokens[1]);
else if( EQUAL(papszTokens[0],"Stop day") )
nStopDay = atoi(papszTokens[1]);
else if( EQUAL(papszTokens[0],"Stop hour") )
nStopHour = atoi(papszTokens[1]);
else if( EQUAL(papszTokens[0],"Stop minute") )
nStopMinute = atoi(papszTokens[1]);
else if( EQUAL(papszTokens[0],"Stop second") )
nStopSecond = atoi(papszTokens[1]);
else if( EQUAL(papszTokens[0],"Number of columns") )
{
nCols = atoi(papszTokens[1]);
}
else if(
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